AD1995: NW Europe's hydrocarbon industry

International Nuclear Information System (INIS)

Glennie, K.; Hurst, A.

1996-01-01

This volume concerns itself with wide-ranging aspects of the upstream hydro-carbon industry over the whole of NW Europe. As such, the book contrasts with many thematic volumes by presenting a broad range of topics side-by-side. One section of the book looks back at the history of geological exploration and production, and provides an overview of hydrocarbon exploration across NW Europe. Another section covers the state of the art in hydrocarbon exploration and production. This includes an update on computer-based basin modelling overpressure systems, innovations in reservoir engineering and reserve estimation, 3D seismic and the geochemical aspects of secondary migration. The final section of the book takes a look into the future. This covers the remaining hydrocarbon resources of the North Sea, managing risk in oil field development, oil field economics, and pollution and the environment. It is the editors' hope that several key areas of NW Europe's upstream oil industry have been usefully summarized in the volume. (Author)

Prevalence of Gulf war veterans who believe they have Gulf war syndrome: questionnaire study

Science.gov (United States)

Chalder, T; Hotopf, M; Unwin, C; Hull, L; Ismail, K; David, A; Wessely, S

2001-01-01

Objectives To determine how many veterans in a random sample of British veterans who served in the Gulf war believe they have “Gulf war syndrome,” to examine factors associated with the presence of this belief, and to compare the health status of those who believe they have Gulf war syndrome with those who do not. Design Questionnaire study asking British Gulf war veterans whether they believe they have Gulf war syndrome and about symptoms, fatigue, psychological distress, post-traumatic stress, physical functioning, and their perception of health. Participants 2961 respondents to questionnaires sent out to a random sample of 4250 Gulf war veterans (69.7%). Main outcome measure The proportion of veterans who believe they have Gulf war syndrome. Results Overall, 17.3% (95% confidence interval 15.9 to 18.7) of the respondents believed they had Gulf war syndrome. The belief was associated with the veteran having poor health, not serving in the army when responding to the questionnaire, and having received a high number of vaccinations before deployment to the Gulf. The strongest association was knowing another person who also thought they had Gulf war syndrome. Conclusions Substantial numbers of British Gulf war veterans believe they have Gulf war syndrome, which is associated with psychological distress, a high number of symptoms, and some reduction in activity levels. A combination of biological, psychological, and sociological factors are associated with the belief, and these factors should be addressed in clinical practice. What is already known on this topicThe term Gulf war syndrome has been used to describe illnesses and symptoms experienced by veterans of the 1991 Gulf warConcerns exist over the validity of Gulf war syndrome as a unique entityWhat this study adds17% of Gulf war veterans believe they have Gulf war syndromeHolding the belief is associated with worse health outcomesKnowing someone else who believes they have Gulf war syndrome and receiving

Porosity and reservoir potentiality of the Cherahil Formation limestone (middle-upper Eocene) in the Gulf of Gabes (Tunisia)

Science.gov (United States)

Njahi, Zahra; Kassabi, Nadhem; Touir, Jamel

2017-07-01

During the middle and upper Eocene, the deposits in the Gulf of Gabes correspond to the Cherahil Formation, which is sub-divided into three units, which are as follows from base to top: the Lower Cherahil A, the Siouf and the Upper Cherahil B members. The Siouf member has a lateral equivalent in the Souar Formation named Reineche member. The Cherahil Formation has never been considered by oil companies as a particular drilling target in the Gulf of Gabes (offshore east Tunisia) despite the presence of hydrocarbon at the bottom of Cherahil Formation in Sidi Behara and Sidi Litayem oil fields in Sfax Area (onshore east Tunisia) and in its equivalent carbonate beds in Jebel Trozza (Central Tunisia). Therefore, the evaluation of porosity in the carbonate levels of Cherahil Formation in 20 drilling wells were performed on well logging by applying Wyllie method. The obtained results show that the studied carbonates are characterized by an economically important total porosity average ranging between 5% and 55%, and both vertical and lateral variations. The vertical porosity variation was controlled by the sea-level fluctuation that, in turn, controlled the evolution of carbonate sedimentary environments and relative facies. The lateral porosity variation followed the Tunisian middle-upper Eocene paleogeography changes controlled by NW-SE synsedimentary tectonic trends. Considering the important features of the Cherahil Formation and the coexistence of components of an oil system in the Gulf of Gabes, this formation can be an important potential reservoir and subsequently a new petroleum exploration target in the Gulf of Gabes.

Genetic homogeneity of the invasive lionfish across the Northwestern Atlantic and the Gulf of Mexico based on Single Nucleotide Polymorphisms.

Science.gov (United States)

Pérez-Portela, R; Bumford, A; Coffman, B; Wedelich, S; Davenport, M; Fogg, A; Swenarton, M K; Coleman, F; Johnston, M A; Crawford, D L; Oleksiak, M F

2018-03-22

Despite the devastating impact of the lionfish (Pterois volitans) invasion on NW Atlantic ecosystems, little genetic information about the invasion process is available. We applied Genotyping by Sequencing techniques to identify 1,220 single nucleotide polymorphic sites (SNPs) from 162 lionfish samples collected between 2013 and 2015 from two areas chronologically identified as the first and last invaded areas in US waters: the east coast of Florida and the Gulf of Mexico. We used population genomic analyses, including phylogenetic reconstruction, Bayesian clustering, genetic distances, Discriminant Analyses of Principal Components, and coalescence simulations for detection of outlier SNPs, to understand genetic trends relevant to the lionfish's long-term persistence. We found no significant differences in genetic structure or diversity between the two areas (F ST p-values > 0.01, and t-test p-values > 0.05). In fact, our genomic analyses showed genetic homogeneity, with enough gene flow between the east coast of Florida and Gulf of Mexico to erase previous signals of genetic divergence detected between these areas, secondary spreading, and bottlenecks in the Gulf of Mexico. These findings suggest rapid genetic changes over space and time during the invasion, resulting in one panmictic population with no signs of divergence between areas due to local adaptation.

Study of the particulate matter transfer and dumping using 210 Po et le 210 Pb. Application to the Gulf of Biscary (NE Atlantic Ocean) and the Gulf of Lion (NW Mediterranean Sea) continental margins

International Nuclear Information System (INIS)

Radakovitch, O.

1995-01-01

210 Po and 210 Pb activities and fluxes were measured on seawater, sediment-trapped material collected during one year and sediment. Focalization of 210 Pb is clearly noticed on the Cap-Ferret canyon (Gulf of Biscary) and the Lacaze-Duthiers canyon (western part of the Gulf of Lion). In both sites, 210 Pb fluxes in traps and sediment are always higher than 210 Pb flux available from atmospheric and in situ production. On the contrary, Grand-Rhone canyon and its adjacent open slope exhibit a 210 Pb budget near equilibrium in the near-bottom sediment traps, but focalization is important in the sediment. For the entire Gulf of Lion margin, focalization of 210 Pb in the sediment occurred principally between 500 and 1500 m water depth on the slope, and on the middle shelf mud-patch. 210 Po and 210 Pb have been used in the Cap Ferret and Grand-Rhone canyons to characterize the origin of the particulate trapped material. Two main sources feed the water column. The first source, localized in surface waters, is constituted by biogenic particles from primary production and lithogenic material. The second source, deeper, is due to resuspension at the shelf break and/or on the open slope. In each site, 210 Po and 210 Pb activities of the trapped particles did not show any relations with the major constituents. Quantity of particles appeared to be the main factor regulating adsorption processes of these nuclides. Sedimentation rates based on 210 Po profiles decreased with increasing water depth, from 0.4 ti 0.06 cm y-1 on the Cap Ferret canyon (400 to 3000 m water depth) and from 0.5 to 0.05 cm y-1 for the entire Gulf of Lion margin (50 to 2000 m water depth). (author)

Evidence for volcanism in NW Ishtar Terra, Venus

International Nuclear Information System (INIS)

Gaddis, L.; Greeley, R.

1989-01-01

Venera 15/16 radar data for an area in NW Ishtar Terra, Venus, show an area with moderate radar return and a smooth textured surface which embays low lying areas of the surrounding mountainous terrain. Although this unit may be an extension of the lava plains of Lakshmi Planum to the southeast, detailed study suggests a separate volcanic center in NW Ishtar Terra. Lakshmi Planum, on the Ishtar Terra highland, exhibits major volcanic and tectonic features. On the Venera radar image radar brightness is influenced by slope and roughness; radar-facing slopes (east-facing) and rough surfaces (approx. 8 cm average relief) are bright, while west-facing slopes and smooth surfaces are dark. A series of semi-circular features, apparently topographic depressions, do not conform in orientation to major structural trends in this region of NW Ishtar Terra. The large depression in NW Ishtar Terra is similar to the calderas of Colette and Sacajawea Paterae, as all three structures are large irregular depressions. NW Ishtar Terra appears to be the site of a volcanic center with a complex caldera structure, possibly more than one eruptive vent, and associated lobed flows at lower elevations. The morphologic similarity between this volcanic center and those of Colette and Sacajawea suggests that centralized eruptions have been the dominant form of volcanism in Ishtar. The location of this volcanic center at the intersection of two major compressional mountain belts and the large size of the calders (with an inferred larg/deep magma source) support a crustal thickening/melting rather than a hot-spot origin for these magmas

2015 Gulf Guardian Awards

Science.gov (United States)

The Gulf of Mexico Program Partnership developed the Gulf Guardian awards as a way to recognize and honor the businesses, community groups, individuals, and agencies that are taking positive steps to keep the Gulf healthy, beautiful and productive.

Differential biomagnification of PCB, PBDE, Hg and Radiocesium in the food web of the European hake from the NW Mediterranean

International Nuclear Information System (INIS)

Harmelin-Vivien, Mireille; Bodiguel, Xavier; Charmasson, Sabine; Loizeau, Véronique; Mellon-Duval, Capucine; Tronczyński, Jacek; Cossa, Daniel

2012-01-01

Consumption of marine organisms represents one of the main exposure sources of contaminants for human populations. To obtain a global view of the contamination in commercial fish in the NW Mediterranean Sea, we analysed four types of priority contaminants (PCBs, PBDEs, Hg and 137 Cs) in the European hake, Merluccius merluccius, from the Gulf of Lions in relation with organism’s trophic level (δ 15 N). All contaminants presented a significant increase in concentration in hake muscle with trophic level. However, obvious differences between contaminants were evidenced. Biomagnification factors (BMF and FWMF) along the hake food web were higher for Hg and CB-153 than for BDE-47 and 137 Cs, and increase in contaminant concentration with trophic level occurred at different rates depending on contaminants. Such differences of biomagnification patterns can be related to physico-chemical properties of the different contaminants.

Latest Miocene transtensional rifting of northeast Isla Tiburón, eastern margin of the Gulf of California

Science.gov (United States)

Bennett, Scott E. K.; Oskin, Michael E.; Iriondo, Alexander

2017-11-01

Details about the timing and kinematics of rifting are crucial to understand the conditions that led to strain localization, continental rupture, and formation of the Gulf of California ocean basin. We integrate detailed geologic and structural mapping, basin analysis, and geochronology to characterize transtensional rifting on northeastern Isla Tiburón, a proximal onshore exposure of the rifted North America margin, adjacent to the axis of the Gulf of California. Slip on the Kunkaak normal fault tilted its hanging wall down-to-the-east 70° and formed the non-marine Tecomate basin, deposited across a 20° angular unconformity. From 7.1-6.4 Ma, the hanging wall tilted at 35 ± 5°/Myr, while non-marine sandstone and conglomerate accumulated at 1.4 ± 0.2 mm/yr. At least 1.8 ± 0.1 km of sediments and pyroclastic deposits accumulated in the Tecomate basin concurrent with clockwise vertical-axis block rotation and 2.8 km of total dip-slip motion on the Kunkaak fault. Linear extrapolation of tilting and sedimentation rates suggests that faulting and basin deposition initiated 7.6-7.4 Ma, but an older history involving initially slower rates is permissible. The Kunkaak fault and Tecomate basin are truncated by NW-striking, dextral-oblique structures, including the Yawassag fault, which accrued > 8 km of post-6.4 Ma dextral displacement. The Coastal Sonora fault zone on mainland Sonora, which accrued several tens of kilometers of late Miocene dextral offset, continues to the northwest, across northeastern Isla Tiburón and offshore into the Gulf of California. The establishment of rapid, latest Miocene transtension in the Coastal Sonora fault zone was synchronous with the 8-7 Ma onset of transform faulting and basin formation along the nascent Pacific-North America plate boundary throughout northwestern Mexico and southern California. Plate boundary strain localized into this Gulf of California shear zone, a narrow transtensional belt that subsequently hosted the

Hurricane shuts down gulf activity

International Nuclear Information System (INIS)

Koen, A.D.

1992-01-01

This paper reports that producers in the Gulf of Mexico and plant operators in South Louisiana last week were checking for damage wrought by Hurricane Andrew. In its wake Andrew left evacuated rigs and platforms in the gulf and shuttered plants across a wide swath of the Gulf Coast. Operations were beginning to return to normal late last week. Not all gulf operators, especially in the central gulf, expected to return to offshore facilities. And even producers able to book helicopters did not expect to be able to fully assess damage to all offshore installations before the weekend. MMS officials in Washington estimated that 37,500 offshore workers were evacuated from 700 oil and gas installations on the gulf's Outer Continental Shelf. Gulf oil and gas wells account for about 800,000 b/d of oil and one fourth of total U.S. gas production. MMS was awaiting an assessment of hurricane damage before estimating how soon and how much gulf oil and gas production would be restored

Grain size distribution, clay mineralogy and chemistry of bottom sediments from the outer Thermaikos Gulf, Aegean Sea, Greece

Directory of Open Access Journals (Sweden)

K.G. PEHLIVANOGLOU

2004-06-01

Full Text Available The Thermaikos Gulf constitutes the NW part of the North Aegean Sea and is limited eastward from the Chalkidiki Peninsula and westward from the Pieria Prefecture. Its plateau covers an area of 3,500 km2. The mechanisms responsible for the grain size distribution into the Gulf, the clay mineralogy and the chemistry of some bottom sediments from the outer Thermaikos Gulf, are examined. Source mixing during transportation, flocculation, differential settling processes and organic matter appear to be the main mechanisms for the distribution of clay minerals in shallow waters. All grain size fractions studied present a wide range of values confirming the extreme variations of the discharged load and the variability in marine processes. Plagioclases predominate over K-feldspars, while quartz is the most abundant mineral present. In addition, micas, chlorites, amphiboles and pyroxenes exist as primary and/or accessory minerals in all samples. Among clay minerals, illite predominates over smectite and smectite over chlorite (+ kaolinite. The ordered interstratified phase of I/S, with 30-35% S layers, is present in the 2-0.25µm fraction. The randomly interstratified phase of I/S, with 50% S layers, is present in the <0.25& micro; m fraction. On average the clay mineral content of the studied samples is: 48% I, 23% S, 17% Ch (+K and 12% others for the 2-0.25µm fraction and 50% I, 30% S and 20% Ch (+K for the <0.25 µm fraction. All these minerals are the weathering products of the rocks from the drainage basins of the rivers flowing into the Gulf, as well as of the Neogene and Quaternary unconsolidated sediments of the surrounding coasts. The terrigenous input, the water mass circulation and, to a lesser extent, the quality of the discharged material and the differential settling of grains, control the grain size distribution within the outer Thermaikos Gulf. The chemical composition of the analysed samples is generally in agreement with their mineral

A Paleomagnetic Investigation of Large-Scale Vertical Axis Rotations in Coastal Sonora: Evidence for Transtensional Proto-Gulf Deformation

Science.gov (United States)

Herman, S. W.; Gans, P. B.

2006-12-01

A paleomagnetic investigation into possible vertical axis rotations has been conducted in the Sierra el Aguaje and Sierra Tinajas del Carmen, Sonora, Mexico, in order assess proposed styles for oblique continental rifting in the Gulf of California. Two styles of rifting have been proposed; (1) strain partitioning (Stock and Hodges, 89), and (2) transtension (Gans, 97), for the Proto-Gulf period of the Gulf of California. The presence of large- scale vertical axis rotations would lend weight to the argument for transtension. The Sierra el Aguaje and Sierra Tinajas del Carmen are located in southwestern coastal Sonora, Mexico. The ranges represent the eastern-rifted margin of the central Gulf of California. This is one of the few areas of that margin which is entirely above water, with new ocean crust of the Guaymas basin lying immediately offshore of the western edge of the ranges. The ranges are composed of volcanic units and their corresponding volcaniclastic units that are the result of persistent magmatic activity between 20 and 8.8 Ma, including three packages of basalt and andesite that make excellent paleomagnetic recorders. Based on cross cutting relations and geochronologic data for pre-, syn-, and post-tectonic volcanic units, most of the faulting and tilting in the Sierra El Aguaje and Sierra Tinajas del Carmen is bracketed between 11.9 and 9.0 Ma, thus falling entirely within Proto-Gulf time. Existing field relations suggest the presence of large (>45°) vertical axis rotations in this region. This evidence includes: a) abrupt changes in the strike of tilted strata in different parts of the range b) ubiquitous NE-SW striking faults with left lateral-normal oblique slip, that terminate against major NW-trending right lateral faults, and c) obliquity between the general strike of tilted strata and the strike of faults. The results of the paleomagnetic investigation are consistent with the field evidence and show large clockwise rotations between ~30° and

76 FR 54375 - Safety Zone; Thunder on the Gulf, Gulf of Mexico, Orange Beach, AL

Science.gov (United States)

2011-09-01

...-AA00 Safety Zone; Thunder on the Gulf, Gulf of Mexico, Orange Beach, AL AGENCY: Coast Guard, DHS... portion of the Gulf of Mexico for the waters off Orange Beach, Alabama. This action is necessary for the... conduct a high speed boat race on the Gulf of Mexico, south of Orange Beach, Alabama to occur from October...

A 3D model of crustal magnetization at the Pinacate Volcanic Field, NW Sonora, Mexico

Science.gov (United States)

García-Abdeslem, Juan; Calmus, Thierry

2015-08-01

The Pinacate Volcanic Field (PVF) is located near the western border of the southern Basin and Range province, in the State of Sonora NW Mexico, and within the Gulf of California Extensional Province. This volcanic field contains the shield volcano Santa Clara, which mainly consists of basaltic to trachytic volcanic rocks, and reaches an altitude of 1200 m. The PVF disrupts a series of discontinuous ranges of low topographic relief aligned in a NW direction, which consist mainly of Proterozoic metamorphic rocks and Proterozoic through Paleogene granitoids. The PVF covers an area of approximately 60 by 55 km, and includes more than 400 well-preserved cinder cones and vents and eight maar craters. It was active from about 1.7 Ma until about 13 ka. We have used the ages and magnetic polarities of the volcanic rocks, along with mapped magnetic anomalies and their inverse modeling to determine that the Pinacate Volcanic Field was formed during two volcanic episodes. The oldest one built the Santa Clara shield volcano of basaltic and trachytic composition, and occurred during the geomagnetic Matuyama Chron of reverse polarity, which also includes the normal polarity Jaramillo and Olduvai Subchrons, thus imprinting both normal and reverse magnetization in the volcanic products. The younger Pinacate series of basaltic composition represents monogenetic volcanic activity that extends all around the PVF and occurred during the subsequent geomagnetic Brunhes Chron of normal polarity. Magnetic anomalies toward the north of the Santa Clara volcano are the most intense in the PVF, and their inverse modeling indicates the presence of a large subsurface body magnetized in the present direction of the geomagnetic field. This suggests that the magma chambers at depth cooled below the Curie temperature during the Brunhes Chron.

No evidence for altered cellular immune functions in personnel deployed in the Persian Gulf during and after the Gulf War--The Danish Gulf War study

DEFF Research Database (Denmark)

Bregenholt, S; Ishøy, T; Skovgaard, L T

2001-01-01

Veterans who have participated in the Gulf War suffer from a number of symptoms, collectively referred to as the Gulf War Syndrome. It has been hypothesized that a change in the systemic cytokine balance or other changes in immunological parameters could be responsible for some of the symptoms. We...... analyzed the peripheral blood natural killer (NK) cell activity of 686 Gulf War personnel who had been present in the Persian Gulf area during and immediately after the Gulf War as well as 231 gender and age-matched controls. The test material included individual samples of frozen peripheral blood...

2015 Gulf Guardian Award Winners

Science.gov (United States)

The Gulf of Mexico Program Partnership developed the Gulf Guardian awards as a way to recognize and honor the businesses, community groups, individuals, and agencies that are taking positive steps to keep the Gulf healthy, beautiful and productive.

2017 Gulf Guardian Award Winners

Science.gov (United States)

The Gulf of Mexico Program Partnership developed the Gulf Guardian awards as a way to recognize and honor the businesses, community groups, individuals, and agencies that are taking positive steps to keep the Gulf healthy, beautiful and productive.

78 FR 14983 - Fisheries of the Gulf of Mexico; Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2013-03-08

... the Gulf of Mexico; Gulf of Mexico Fishery Management Council; Public Meeting AGENCY: National Marine... of Gulf of Mexico Fishery Management Council Spanish Mackerel and Cobia Stock Assessment Review Workshop. SUMMARY: Independent peer review of Gulf of Mexico Spanish Mackerel and Cobia stocks will be...

77 FR 56168 - Reef Fish Fishery of the Gulf of Mexico; Gulf of Mexico Individual Fishing Quota Programs

Science.gov (United States)

2012-09-12

.... 090206140-91081-03] RIN 0648-XC227 Reef Fish Fishery of the Gulf of Mexico; Gulf of Mexico Individual... red snapper and grouper/tilefish components of the reef fish fishery in the Gulf of Mexico (Gulf), the... INFORMATION: The reef fish fishery of the Gulf of Mexico is managed under the Fishery Management Plan for Reef...

75 FR 54445 - Proposed Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era...

Science.gov (United States)

2010-09-07

... Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans) Activity: Comment Request... assist in VA's efforts to address the health concerns and problems of Gulf War Veterans. DATES: Written... of Gulf War and Gulf Era Veterans, VA Form 10-0488, and Consent Form for Release of Medical Records...

76 FR 64248 - Gulf of Mexico Reef Fish Fishery; Closure of the 2011 Gulf of Mexico Commercial Sector for...

Science.gov (United States)

2011-10-18

.... 040205043-4043-01] RIN 0648-XA766 Gulf of Mexico Reef Fish Fishery; Closure of the 2011 Gulf of Mexico... the commercial sector for greater amberjack in the exclusive economic zone (EEZ) of the Gulf of Mexico... Reef Fish Resources of the Gulf of Mexico (FMP). The FMP was prepared by the Gulf of Mexico Fishery...

75 FR 70365 - Agency Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era...

Science.gov (United States)

2010-11-17

... (Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans) Activity Under OMB Review AGENCY...).'' SUPPLEMENTARY INFORMATION: Titles: Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans, VA..., will help VA to assess the health of Gulf War veterans who were exposed to a variety of environmental...

Opening of the Gulf of Guayaquil: quantifying the motion from the trench to the Andean Cordillera

Science.gov (United States)

Santana, E.; Dumont, J. F.; Vilema, W.; Pedoja, K.

2003-04-01

, Daule and Babahoyo drainage area, evidenced by the seismic activity observed in this area. (2) The effect of the new partition of deformation is also evidenced by the evolution of the morphology on the north margin of the Gulf, resulting in the formation of the Puná Island since the last interglacial period. A NW-SW trending drainage pattern from the Progresso Basin to Puná, evidenced by a paleo estuary pattern in east Puná, was disrupted and overprinted by the new N-S drainage of the Guayas estuary, which shifted from east to west as a result. (3) The opening of the Gulf of Guayaquil has a significant effect on the trench, which is offset is several segments. Most of the motion is registered by the offset of the trench.

Sediment transport modelling in the Gulf of Lion with the perspective of studying the fate of radionuclides originated by the Rhone River

International Nuclear Information System (INIS)

Dufois, Francois

2008-01-01

Among the various contaminants introduced in the environment, artificial radionuclides appear particularly important to consider because of their chemical toxicity and / or of their radio-toxicity. Some radionuclides present a high affinity with particles so that the study of the sediment dynamics is a useful preliminary to the study of their dispersion on the open sea. This thesis is focused on the fate of sediments in the Gulf of Lion (NW Mediterranean sea) and in particular on the impact of the Rhone River, which is the main source of particulate matter in the Gulf of Lion. In order to study the sediment transport mechanisms on various space and time scales, this thesis is based on mathematical modelling. The hydro-sedimentary model set up in the Gulf of Lion, which takes into account the gathered effect of waves and currents, was supported by recent hydro-sedimentary data analyses. CARMA (winter 2006/2007) and SCOPE (winter 2007/2008) experiments were used to better understand the physical processes which control the sediment transport on the Rhone pro-delta and to validate the model. The period of the centennial Rhone River flood of December 2003 was also simulated in order to determine the impact of such extreme events on the fate of sediments. Both observations and simulations of the studied periods highlight the high capacity of erosion and transport induced by south-eastern storms on the pro-delta

Onshore and offshore apatite fission-track dating from the southern Gulf of California: Insights into the time-space evolution of the rifting

Science.gov (United States)

Balestrieri, Maria Laura; Ferrari, Luca; Bonini, Marco; Duque-Trujillo, Jose; Cerca, Mariano; Moratti, Giovanna; Corti, Giacomo

2017-11-01

We present the results of a apatite fission-track (AFT) study on intrusive rocks in the southern Gulf of California, sampled along the eastern margin of Baja California Sur (western rift margin), as well as from islands and submerged rifted blocks within the Gulf of California, and from the conjugate Mexican margin (Nayarit state). For most of the samples U-Pb zircon and 40Ar-39Ar mineral ages were already available (Duque-Trujillo et al., 2015). Coupled with the new AFT data these ages provide a more complete information on cooling after emplacement. Our samples span a wide range of ages between 5.5 ± 1.1 and 73.7 ± 5.8 Ma, and show a general spatial distribution, with late Miocene AFT ages (about 6 Ma) aligned roughly NW-SE along a narrow offshore belt, parallel to Baja California Peninsula, separating older ages on both sides. This pattern suggests that in Late Miocene, deformation due to plate transtension focused at the eastern rheological boundary of the Baja California block. Some Early Miocene AFT ages onshore Baja California could be related to plutons emplaced at shallow depths and thermal resetting associated with the onset of volcanism at 19 Ma in this part of the Peninsula. On the other hand, an early extensional event similar to that documented in the eastern Gulf cannot be ruled out in the westernmost Baja California.

The Northern Gulf of Mexico During OAE2 and the Relationship Between Water Depth and Black Shale Development

Science.gov (United States)

Lowery, Christopher M.; Cunningham, Robert; Barrie, Craig D.; Bralower, Timothy; Snedden, John W.

2017-12-01

Despite their name, Oceanic Anoxic Events (OAEs) are not periods of uniform anoxia and black shale deposition in ancient oceans. Shelf environments account for the majority of productivity and organic carbon burial in the modern ocean, and this was likely true in the Cretaceous as well. However, it is unlikely that the mechanisms for such an increase were uniform across all shelf environments. Some, like the northwest margin of Africa, were characterized by strong upwelling, but what might drive enhanced productivity on shelves not geographically suited for upwelling? To address this, we use micropaleontology, carbon isotopes, and sedimentology to present the first record of Oceanic Anoxic Event 2 (OAE2) from the northern Gulf of Mexico shelf. Here OAE2 occurred during the deposition of the well-oxygenated, inner neritic/lower estuarine Lower Tuscaloosa Sandstone. The overlying organic-rich oxygen-poor Marine Tuscaloosa Shale is entirely Turonian in age. We trace organic matter enrichment from the Spinks Core into the deepwater Gulf of Mexico, where wireline log calculations and public geochemical data indicate organic enrichment and anoxia throughout the Cenomanian-Turonian boundary interval. Redox change and organic matter preservation across the Gulf of Mexico shelf were driven by sea level rise prior to the early Turonian highstand, which caused the advection of nutrient-rich, oxygen-poor waters onto the shelf. This results in organic matter mass accumulation rates 1-2 orders of magnitude lower than upwelling sites like the NW African margin, but it likely occurred over a much larger geographic area, suggesting that sea level rise was an important component of the overall increase in carbon burial during OAE2.

Tides and seiches in gulfs

International Nuclear Information System (INIS)

Pierini, S.

1981-01-01

In this paper Garrett's theory of tides in gulfs is extended so that its formalism includes the free oscillations (seiches) of the gulf. The elevation of the free surface zeta and the velocity field u are obtained in a rectangular, one-dimensional gulf opening into an infinite ocean. An application of the results to the Adriatic sea can explain qualitatively the long life of the uninodal seiche of that basin. (author)

75 FR 54965 - Proposed Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era...

Science.gov (United States)

2010-09-09

... Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans) Activity: Comment Request... needed to assist in VA's efforts to address the health concerns and problems of Gulf War Veterans. DATES... use of other forms of information technology. Titles: Follow-Up Study of a National Cohort of Gulf War...

Influence of Subtropical Jetstream on Arabian Gulf Precipitation

Science.gov (United States)

Sandeep, S.; Pauluis, O.; Ravindran, A. M.; TP, S.

2017-12-01

The Arabian Gulf and surrounding regions are predominantly arid. However, this region hosts a large population due to the intense economic activity that is centered on the exploration of natural resources in and around the Arabian Gulf. Thus, few precipitation events that occur during boreal winter are important for society and ecology of this region. The mechanisms of winter precipitation over the Gulf are not well understood, partly due to a lack of long term meteorological observation. Here we explore the dynamics of Arabian Gulf winter precipitation events using available observations and a high resolution atmospheric model simulation. Our analyses show that the northern Gulf receives about six times more precipitation than the southern Gulf. Often, the southern Gulf precipitation forms as a result of downstream development of northern Gulf disturbance. The southward movement of northern Gulf disturbances is influenced by the location of subtropical jet. The probability of a northern Gulf precipitating weather system to move south is higher when the subtropical jet is located equatorward of 30°N. The equatorward position of jet favors the penetration of mid-latitude weather systems over the Arabian Peninsula, which in turn pushes the Arabian anticyclone eastward and triggers moisture transport from the Arabian Sea that is essential for southern Gulf precipitation events.

Gulf operations still recovering

International Nuclear Information System (INIS)

Koen, A.D.

1992-01-01

This paper reports that reports of damage caused by Hurricane Andrew were leveling off last week at the U.S. Minerals Management Service as Gulf of Mexico operators pressed ahead with repairs. The hurricane struck South Florida Aug. 4, churned west into the gulf, then swung north and hit the South Louisiana coast Aug. 5. By the close of business Sept. 8 MMS had received damage reports covering 83 pipeline segments and 193 platforms and satellite installations. MMS last week estimated about 500 MMcfd of gas production had been restored in the gulf and 100,000-150,000 b/d of oil. Production still lost as a result of Andrew was estimated at 2-2.5 bcfd of gas and 90,000-120 b/d of oil. MMS estimates Gulf of Mexico wells before the storm were producing about 12.5-13 bcfd of gas and 750,000 b/d of oil

Temperature of the Gulf Stream

Science.gov (United States)

2002-01-01

The Gulf Stream is one of the strong ocean currents that carries warm water from the sunny tropics to higher latitudes. The current stretches from the Gulf of Mexico up the East Coast of the United States, departs from North America south of the Chesapeake Bay, and heads across the Atlantic to the British Isles. The water within the Gulf Stream moves at the stately pace of 4 miles per hour. Even though the current cools as the water travels thousands of miles, it remains strong enough to moderate the Northern European climate. The image above was derived from the infrared measurements of the Moderate-resolution Imaging Spectroradiometer (MODIS) on a nearly cloud-free day over the east coast of the United States. The coldest waters are shown as purple, with blue, green, yellow, and red representing progressively warmer water. Temperatures range from about 7 to 22 degrees Celsius. The core of the Gulf Stream is very apparent as the warmest water, dark red. It departs from the coast at Cape Hatteras, North Carolina. The cool, shelf water from the north entrains the warmer outflows from the Chesapeake and Delaware Bays. The north wall of the Gulf Stream reveals very complex structure associated with frontal instabilities that lead to exchanges between the Gulf Stream and inshore waters. Several clockwise-rotating warm core eddies are evident north of the core of the Gulf Stream, which enhance the exchange of heat and water between the coastal and deep ocean. Cold core eddies, which rotate counter clockwise, are seen south of the Gulf Stream. The one closest to Cape Hatteras is entraining very warm Gulf Stream waters on its northwest circumference. Near the coast, shallower waters have warmed due to solar heating, while the deeper waters offshore are markedly cooler (dark blue). MODIS made this observation on May 8, 2000, at 11:45 a.m. EDT. For more information, see the MODIS-Ocean web page. The sea surface temperature image was created at the University of Miami using

Easily fabricated and lightweight PPy/PDA/AgNW composites for excellent electromagnetic interference shielding.

Science.gov (United States)

Wang, Yan; Gu, Fu-Qiang; Ni, Li-Juan; Liang, Kun; Marcus, Kyle; Liu, Shu-Li; Yang, Fan; Chen, Jin-Ju; Feng, Zhe-Sheng

2017-11-30

Conductive polymer composites (CPCs) containing nanoscale conductive fillers have been widely studied for their potential use in various applications. In this paper, polypyrrole (PPy)/polydopamine (PDA)/silver nanowire (AgNW) composites with high electromagnetic interference (EMI) shielding performance, good adhesion ability and light weight are successfully fabricated via a simple in situ polymerization method followed by a mixture process. Benefiting from the intrinsic adhesion properties of PDA, the adhesion ability and mechanical properties of the PPy/PDA/AgNW composites are significantly improved. The incorporation of AgNWs endows the functionalized PPy with tunable electrical conductivity and enhanced EMI shielding effectiveness (SE). By adjusting the AgNW loading degree in the PPy/PDA/AgNW composites from 0 to 50 wt%, the electrical conductivity of the composites greatly increases from 0.01 to 1206.72 S cm -1 , and the EMI SE of the composites changes from 6.5 to 48.4 dB accordingly (8.0-12.0 GHz, X-band). Moreover, due to the extremely low density of PPy, the PPy/PDA/AgNW (20 wt%) composites show a superior light weight of 0.28 g cm -3 . In general, it can be concluded that the PPy/PDA/AgNW composites with tunable electrical conductivity, good adhesion properties and light weight can be used as excellent EMI shielding materials.

Thermohaline circulation in the Gulf of California

Science.gov (United States)

Bray, N. A.

1988-05-01

The Gulf of California, a narrow, semienclosed sea, is the only evaporative basin of the Pacific Ocean. As a result of evaporative forcing, salinities in the gulf are 1 to 2 ‰ higher than in the adjacent Pacific at the same latitude. This paper examines the thermohaline structure of the gulf and the means by which thermohaline exchange between the Pacific and the gulf occurs, over time scales of months to years. In addition to evaporative forcing, air-sea heat fluxes and momentum fluxes are important to thermohaline circulation in the gulf. From observations presented here, it appears that the gulf gains heat from the atmosphere on an annual average, unlike the Mediterranean and Red seas, which have comparable evaporative forcing. As a result, outflow from the gulf tends to be less dense than inflow from the Pacific. Winds over the gulf change direction with season, blowing northward in summer and southward in winter. This same seasonal pattern appears in near-surface transports averaged across the gulf. The thermohaline circulation, then, consists of outflow mostly between about 50 m and 250 m, inflow mostly between 250 m and 500 m, and a surface layer in which the direction of transport changes with seasonal changes in the large-scale winds. Using hydrographic observations from a section across the central gulf, total transport in or out of the northern gulf is estimated to be 0.9 Sv, heat gain from the atmosphere is estimated to be 20 to 50 W m-2, and evaporation is estimated to be 0.95 m yr-1. These estimates are annual averages, based on cruises from several years. Seasonal variations in thermohaline structure in the gulf are also examined and found to dominate the variance in temperature and density in the top 500 m of the water column. Salinity has little seasonal variability but does exhibit more horizontal variablility than temperature or density. Major year-to-year variations in thermohaline structure may be attributable to El Niño-Southern Oscillation

76 FR 69136 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2011-11-08

... interim measures to reduce overfishing of gag in the Gulf of Mexico (Gulf) implemented by a temporary rule... overfishing of gag in the Gulf by reducing the commercial quota for gag and, thus, the combined commercial... this rule is to reduce overfishing of the gag resource in the Gulf. [[Page 69137

77 FR 2960 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2012-01-20

... the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Exempted... and retention. This study, to be conducted in the exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf) off Louisiana, is intended to better document the age structure and life history of fish...

77 FR 30507 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2012-05-23

... the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Exempted... and retention. This study, to be conducted in the exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf), is intended to better document the age structure and life history of fish associated with...

Beyond the Gulf Metropolises

DEFF Research Database (Denmark)

Wippel, Steffen

2013-01-01

The extended studies on urbanisation in the Gulf region that came up in the early 2000s concentrated on the main centres with their worldwide-admired mega-projects and branding strategies. Only rather recently did a more general interest arise in the second-tier range of Gulf cities, which also s...

Gulf Coast Ecosystem Restoration Task Force---Gulf of Mexico Ecosystem Science Assessment and Needs

Science.gov (United States)

Walker, Shelby; Dausman, Alyssa M.; Lavoie, Dawn L.

2012-01-01

The Gulf Coast Ecosystem Restoration Task Force (GCERTF) was established by Executive Order 13554 as a result of recommendations from “America’s Gulf Coast: A Long-term Recovery Plan after the Deepwater Horizon Oil Spill” by Secretary of the Navy Ray Mabus (Mabus Report). The GCERTF consists of members from 11 Federal agencies and representatives from each State bordering the Gulf of Mexico. The GCERTF was charged to develop a holistic, long-term, science-based Regional Ecosystem Restoration Strategy for the Gulf of Mexico. Federal and State agencies staffed the GCERTF with experts in fields such as policy, budgeting, and science to help develop the Strategy. The Strategy was built on existing authorities and resources and represents enhanced collaboration and a recognition of the shared responsibility among Federal and State governments to restore the Gulf Coast ecosystem. In this time of severe fiscal constraints, Task Force member agencies and States are committed to establishing shared priorities and working together to achieve them.As part of this effort, three staffers, one National Oceanic and Atmospheric Administration (NOAA) scientist and two U.S. Geological Survey (USGS) scientists, created and led a Science Coordination Team (SCT) to guide scientific input into the development of the Gulf of Mexico Regional Ecosystem Restoration Strategy. The SCT leads from the GCERTF coordinated more than 70 scientists from the Federal and State Task Force member agencies to participate in development of a restoration-oriented science document focused on the entire Gulf of Mexico, from inland watersheds to the deep blue waters. The SCT leads and scientists were organized into six different working groups based on expanded goals from the Mabus Report: Coastal habitats are healthy and resilient.Living coastal and marine resources are healthy, diverse, and sustainable.Coastal communities are adaptive and resilient.Storm buffers are sustainable.Inland habitats and

Major reproductive health characteristics in male Gulf War Veterans. The Danish Gulf War Study

DEFF Research Database (Denmark)

Ishøy, T; Andersson, A M; Suadicani, Poul Vilhelm

2001-01-01

The male reproductive system could have been affected by various hazardous agents and exposures during and in the aftermath of the Persian Gulf War scenario. We tested the hypothesis that, compared to controls, male Danish Gulf War Veterans would have adverse sex hormone levels, decreased fertility...

78 FR 20717 - Endangered and Threatened Wildlife and Plants; Proposed Endangered, Threatened, and Not Warranted...

Science.gov (United States)

2013-04-05

...). Although indirect age validation studies for S. lewini are still inconclusive, bomb radiocarbon and calcein... the ESA: Northwest Atlantic and Gulf of Mexico (NW Atlantic & GOM DPS); Central and Southwest Atlantic... States (from New Jersey to Florida) to Brazil, including the Gulf of Mexico and Caribbean Sea. In the...

Population Structure, Abundance and Movement of Whale Sharks in the Arabian Gulf and the Gulf of Oman.

Science.gov (United States)

Robinson, David P; Jaidah, Mohammed Y; Bach, Steffen; Lee, Katie; Jabado, Rima W; Rohner, Christoph A; March, Abi; Caprodossi, Simone; Henderson, Aaron C; Mair, James M; Ormond, Rupert; Pierce, Simon J

2016-01-01

Data on the occurrence of whale sharks, Rhincodon typus, in the Arabian Gulf and Gulf of Oman were collected by dedicated boat surveys and via a public-sightings scheme during the period from 2011 to 2014. A total of 422 individual whale sharks were photo-identified from the Arabian Gulf and the northern Gulf of Oman during that period. The majority of sharks (81%, n = 341) were encountered at the Al Shaheen area of Qatar, 90 km off the coast, with the Musandam region of Oman a secondary area of interest. At Al Shaheen, there were significantly more male sharks (n = 171) than females (n = 78; X2 = 17.52, P 9 m individuals were visually assessed as pregnant. Connectivity among sharks sighted in Qatari, Omani and UAE waters was confirmed by individual spot pattern matches. A total of 13 identified sharks were re-sighted at locations other than that at which they were first sighted, including movements into and out of the Arabian Gulf through the Strait of Hormuz. Maximum likelihood techniques were used to model an estimated combined population for the Arabian Gulf and Gulf of Oman of 2837 sharks ± 1243.91 S.E. (95% C.I. 1720-6295). The Al Shaheen aggregation is thus the first site described as being dominated by mature males while the free-swimming pregnant females are the first reported from the Indian Ocean.

Danish Gulf War Veterans Revisited

DEFF Research Database (Denmark)

Nissen, Lars Ravnborg; Stoltenberg, Christian; Nielsen, Anni B Sternhagen

2016-01-01

OBJECTIVE: To examine the assumption that postdeployment incidence of sickness and other absence from work are higher among Gulf War Veterans compared with nonveterans. METHODS: A prospective registry study including a cohort of 721 Danish Gulf War Veterans and a control cohort of 3,629 nonveterans...... and nonveterans in the incidence rate of long-term sickness absence. After an initial short period (3 months) with elevated incidence rate of long-term absence from work among veterans, there was no difference between the cohorts. CONCLUSION: Among Danish Gulf War Veterans, no postdeployment increased risk...... outcomes and information on deployment history was studied using time-to-event analysis. The index date was the return date from the last deployment to the Gulf. The follow-up period was the time from index date until April 27, 2014. RESULTS: As the main finding, no difference was found between veterans...

NW Pacific mid-depth ventilation changes during the Holocene

Science.gov (United States)

Rella, S.; Uchida, M.

2010-12-01

During the last 50 years the oxygen content of North Pacific Intermediate Water primarily originating in the Okhotsk Sea has declined suggesting decreased mid-depth water circulation, likely leading to changes in biological productivity in the NW Pacific realm and a decrease in CO2 drawdown. It is therefore of high interest to elucidate the climate-oceanic interconnections of the present interglacial period (Holocene) in the NW Pacific, in order to predict possible future climate and surface productivity changes associated with a decrease in mid-depth ventilation in this ecologically sensitive region. However, such efforts have been hampered so far by the lack of appropriate sediment cores with fast sedimentation rates during the Holocene. Core CK05-04 that was recovered in 2005 from off Shimokita peninsula, Japan, at ~1000 m depth shows sedimentation rates of ~80 cm/kyr during the Holocene and therefore presents an ideal opportunity to reconstruct for the first time the Holocene ventilation history of the NW Pacific Ocean. We employ Accelerator Mass Spectroscopy (NIES-TERRA, Tsukuba) radiocarbon analysis of co-existing benthic and planktonic foraminifera to conclude on the ventilation age of the mid-depth water using benthic-planktonic radiocarbon age differences. At the conference we would like to present the results.

Hydrocarbons, PCBs and DDT in the NW Mediterranean deep-sea fish Mora moro

Science.gov (United States)

Solé, Montserrat; Porte, Cinta; Albaigés, Joan

2001-02-01

Data on aliphatic and polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and DDTs in the deep-sea fish Mora moro are reported in relation to the animal's weight/size and tissues (muscle, liver, digestive tube and gills). Fish samples were collected in the Gulf of Lions (NW Mediterranean) at an approximate depth of 1000 m. The concentrations of these organic pollutants followed the trend musclelipid content of the organs. No clear bioaccumulation dependence on fish weight/size was observed for gills, digestive tube and liver when the fat contents of these tissues were taken into account. However, the concentrations in muscle decreased with size, possibly implying a simple dilution effect by the increase of body weight. Hydrocarbons, and particularly PAHs, were strongly depleted in all tissues with respect to organochlorinated compounds if compared with the amounts present in bottom waters and sediment. Smaller specimens displayed for most pollutants qualitatively different patterns than larger fish, which could be attributed to their particular habitat/diet. The aliphatic hydrocarbon profiles suggested that Mora moro was exposed to a more predominant intake of biogenic rather than petrogenic hydrocarbons. The entrance and storage organs exhibited characteristic PAH and PCB distributions, reflecting different bioaccumulation and metabolic pathways. Compared with the profiles currently found in surface fish species, a relatively higher contribution of heavier components, namely hepta- and octochlorinated PCBs, and 4-6-ringed PAHs, was found in the deep-sea fish.

Salinity-driven decadal changes in phytoplankton community in the NW Arabian Gulf of Kuwait.

Science.gov (United States)

Al-Said, Turki; Al-Ghunaim, Aws; Subba Rao, D V; Al-Yamani, Faiza; Al-Rifaie, Kholood; Al-Baz, Ali

2017-06-01

Evaluation of hydrological data obtained between 2000 and 2013 from a time series station in Kuwait Bay (station K6) and an offshore southern location (station 18) off Kuwait showed drastic increase in salinity by 6 units. We tested the hypothesis that increased salinity impacted phytoplankton community characteristics in these semiarid waters. The Arabian Gulf receives seasonal freshwater discharge in the north via Shatt Al-Arab estuary with a peak during March-July. A north to south gradient in the proportion of the freshwater exists between station A in the vicinity of Shatt Al-Arab estuary and station 18 in the southern offshore area. At station A, the proportion of freshwater was the highest (25.6-42.5%) in 1997 but decreased to 0.8-4.6% by 2012-2013. The prevailing hyperhaline conditions off Kuwait are attributed to decrease in the river flow. Phytoplankton data showed a decrease in the number of constituent taxa in the last one decade from 353 to 159 in the Kuwait Bay and from 164 to 156 in the offshore area. A shift in their biomass was caused by a decrease in diatom species from 243 to 92 in the coastal waters and from 108 to 83 in the offshore areas with a concomitant increase of smaller algae. Mutivariate agglomerative hierarchical cluster analysis, non-metric multi-dimensional scaling, and one-way analysis of similarity analyses on phytoplankton data at different taxonomic levels confirmed significant changes in their community organization on a decadal scale. These evidences support our hypothesis that the salinity-related environmental changes have resulted in a coincidental decrease in species diversity and significant changes in phytoplankton community between the years 2000-2002 and 2012-2013, off Kuwait. This in turn would affect the pelagic trophodynamics as evident from a drastic decrease in the catch landings of Tenulosa ilisha (Suboor), Carangoides sp. (Hamam), Otolithes ruber (Nowaiby), Parastromateus niger (Halwaya), and Epinephelus

10 years of protein crystallography at AR-NW12A beamline

Science.gov (United States)

Chavas, L. M. G.; Yamada, Y.; Hiraki, M.; Igarashi, N.; Matsugaki, N.; Wakatsuki, S.

2013-03-01

The exponential growth of protein crystallography can be observed in the continuously increasing demand for synchrotron beam time, both from academic and industrial users. Nowadays, the screening of a profusion of sample crystals for more and more projects is being implemented by taking advantage of fully automated procedures at every level of the experiments. The insertion device AR-NW12A beamline is one of the five macromolecular crystallography (MX) beamlines at the Photon Factory (PF). Currently the oldest MX beamline operational at the High Energy Accelerator Research Organization (KEK), the end-station was launched in 2001 as part of an upgrade of the PF Advanced Ring. Since its commissioning, AR-NW12A has been operating as a high-throughput beamline, slowly evolving to a multipurpose end-station for MX experiments. The development of the beamline took place about a decade ago, in parallel with a drastic development of protein crystallography and more general synchrotron technology. To keep the beamline up-to-date and competitive with other MX stations in Japan and worldwide, new features have been constantly added, with the goal of user friendliness of the various beamline optics and other instruments. Here we describe the evolution of AR-NW12A for its tenth anniversary. We also discuss the plans for upgrades for AR-NW12A, the future objectives in terms of the beamline developments, and especially the strong desire to open the beamline to a larger user community.

Coastal sensitivity mapping of Gulf of Kachchh and Gulf of Cambay, India

Digital Repository Service at National Institute of Oceanography (India)

ManiMurali, R.; Boora, P.; Vethamony, P.

and managers of coastal zones are also useful for identifying sensitive resources before a spill occurs (Jenson, 1998). In this way, protection priorities could be identified and established and cleanup strategies could be designed in advance. To deal... regions to oil spills. This research focuses on improving information about coastal environment mapping from remote sensing and GIS technology to generate maps of environmental sensitivity index for oil spill in Gulf of Kachchh and Gulf of Cambay...

The United States and the Arab Gulf Monarchies

International Nuclear Information System (INIS)

Kechichian, J.A.

1999-01-01

The United States has enduring strategic interests in the Persian Gulf region. To understand these interests and the Usa policy towards the Arab Gulf Monarchies, the french institute of international relations (IFRI) proposes this document. The following chapters are detailed: the United States and the Arab Gulf Monarchies, overview, Chief Unites States Objective: Access to oil, re-evaluating United States Foreign Policy in the Gulf, the second term (Usa strategy). (A.L.B.)

Hydrogeology of the basalts in the Uruguayan NW

International Nuclear Information System (INIS)

Hausman, A.; Fernandez, A.

1967-01-01

This work is about the hydrogeological aspects in the NW Uruguayan basaltic area. The results of this research are the main geological, morphological and hydrogeological aspects of the area as well as the characteristics and the color of the basalt and sandstones

77 FR 67303 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2012-11-09

... interim measures to reduce overfishing of gray triggerfish in the Gulf of Mexico (Gulf) implemented by a... rule is to reduce overfishing of the gray triggerfish resource in the Gulf while the Council develops... necessary, to reduce overfishing. On April 19, 2012, the Council requested that NMFS implement a temporary...

Behavior and trends for Zn in Saronikos Gulf

Directory of Open Access Journals (Sweden)

Chalkiadakis O.

2013-04-01

Full Text Available The study of Zn in the water column of Saronikos Gulf in Greece during a two year period between 2008 and 2010 added data to the available time series of metal data for this marine area since 1985. The Saronikos Gulf, is directly influenced by the Athens metropolitan area. The operation of the Wastewater Treatment Plant of Athens situated on the small island of Psitalia, in 1995, was considered to be the turning point in the efforts of de-pollution of the gulf. Major sources of pollution for the gulf include also the port of Piraeus, with intensive navigation and shipping activities and the significant industrial activity occurring along the coast of Attica. This study of dissolved and particulate Zn gave results consistent with previous studies of the area such as the prevalence of the dissolved form of Zn and the most affected areas being the smaller most enclosed Gulf of Elefsina and Psitalia Island near the wastewater outfall. However, the concentrations of Zn were below toxic levels for marine aquatic organisms. Furthermore, a clear decrease in the Eastern part of the gulf was exhibited as well as a more subtle decrease in the gulf of Elefsina. The levels of Zn in Saronikos Gulf were found comparable to those of other Greek coastal areas.

75 FR 21512 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2010-04-26

...: NMFS issues this final rule to implement Amendment 31 to the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico Fishery Management Council (Council... operation of the bottom longline component of the reef fish fishery in the eastern Gulf while maintaining...

Description of some characteristics of flowers and seeds of Arabidopsis thaliana - ecotype landsberg erecta and mutant NW4

Directory of Open Access Journals (Sweden)

Leszek Trząski

2014-01-01

Full Text Available Flowers and seeds of Landsberg erecta (Ler ecotype and NW4 mutant were studied by light microscopy and scanning electron microscopy to reveal characteristic features of their structure. The NW4 mutant flowers differ from Ler mainly in presence of two bract-like sepals with complicated vasculature and a variable number of secondary flowers. In the two outer whorls of NW4 flower, variable number of transformed stamen-, petal-, sepal- and style-like elements also occur. The NW4 mutant seeds are characterized by the absence of mucilage around the surface and a deviating seed coat morphology.

Geothermal and seismic evidence for a southeastern continuation of the three pagodas fault zone into the Gulf of Thailand

Directory of Open Access Journals (Sweden)

Prinya Putthapiban

2012-09-01

Full Text Available Aerial photographic maps and landsat image interpretations suggest the major fault segments of the Three PagodaFault (TPF Zone and Sri Swat Fault (SSF Zone are oriented parallel or sub-parallel in the same NW-SE directions. The KwaeNoi River is running along the TPF in the south whereas the Kwae Yai River is running along the SSF in the north. Thesoutheastern continuation of both faults is obscured by thick Cenozoic sediments. Hence, surface lineaments cannot betraced with confidence. However, based on some interpretations of the airborne magnetic survey data, the trace of such faultsare designated to run through the western part of Bangkok and the northern end of the Gulf of Thailand. Paleo-earthquakesand the presence of hot springs along the fault zones indicate that they are tectonically active. The changes of both physicaland chemical properties of the water from Hin Dart Hot Spring and those of the surface water from a shallow well at Ban KhaoLao during the Great Sumatra–Andaman Earthquake on 26th of December 2004 clearly indicated that the southeastern continuation of the TPF is at least as far south as Pak Tho District, Ratburi. Our new evidence of the alignment of the high heatflow in the upper part of the Gulf of Thailand verified that the TPF also extend into the Gulf via Samut Songkhram Province.Studies of the seismic data from two survey lines along the Western part of the upper Gulf of Thailand acquired by BritoilPlc. in 1986, namely Line A which is approximately 60 km long, starting from Bang Khen passing through Bang Khae andending in Samut Songkhram and Line B is approximately 30 km long starting from Samut Sakon ending in Samut Song Khramsuggest that all the faults or fractures along these seismic profiles are covered by sediments of approximately 230 m thickwhich explain that the fault underneath these seismic lines is quite old and may not be active. The absent of sign or trace ofthe TPF Path to the west suggested that there

Assessment of heavy metals pollution in bottom sediments of the Arabian Gulf after the Gulf War oil spill 1991

International Nuclear Information System (INIS)

Nasr, S.M.; Ahmed, M.H.; El-Raey, M.; Frihy, O.E.; Abdel Motti, A.

1999-01-01

The major objective of this study was to carry out a sequential geochemical extraction scheme for the partitioning of Fe, Mn, Co, Cu, Zn, Ni, Cr and Pb in the bottom sediments of the Arabian Gulf to detect any potential pollution impact on the gulf sediments following the 1991 gulf war oil spill, and to differentiate between anthropogenic inputs and natural background of heavy metals

All-Cause Mortality Among US Veterans of the Persian Gulf War

Science.gov (United States)

Kang, Han K.; Bullman, Tim

2016-01-01

Objective: We determined cause-specific mortality prevalence and risks of Gulf War deployed and nondeployed veterans to determine if deployed veterans were at greater risk than nondeployed veterans for death overall or because of certain diseases or conditions up to 13 years after conflict subsided. Methods: Follow-up began when the veteran left the Gulf War theater or May 1, 1991, and ended on the date of death or December 31, 2004. We studied 621   901 veterans who served in the 1990-1991 Persian Gulf War and 746   247 veterans who served but were not deployed during the Gulf War. We used Cox proportional hazard models to calculate rate ratios adjusted for age at entry to follow-up, length of follow-up, race, sex, branch of service, and military unit. We compared the mortality of (1) Gulf War veterans with non–Gulf War veterans and (2) Gulf War army veterans potentially exposed to nerve agents at Khamisiyah in March 1991 with those not exposed. We compared standardized mortality ratios of deployed and nondeployed Gulf War veterans with the US population. Results: Male Gulf War veterans had a lower risk of mortality than male non–Gulf War veterans (adjusted rate ratio [aRR] = 0.97; 95% confidence interval [CI], 0.95-0.99), and female Gulf War veterans had a higher risk of mortality than female non–Gulf War veterans (aRR = 1.15; 95% CI, 1.03-1.28). Khamisiyah-exposed Gulf War army veterans had >3 times the risk of mortality from cirrhosis of the liver than nonexposed army Gulf War veterans (aRR = 3.73; 95% CI, 1.64-8.48). Compared with the US population, female Gulf War veterans had a 60% higher risk of suicide and male Gulf War veterans had a lower risk of suicide (standardized mortality ratio = 0.84; 95% CI, 0.80-0.88). Conclusion: The vital status and mortality risk of Gulf War and non–Gulf War veterans should continue to be investigated. PMID:28123229

Montane pollen from the Tertiary of NW. Borneo

NARCIS (Netherlands)

Muller, J.

1966-01-01

In NW. Borneo thick series of Tertiary sediments occur which are rich in fossil pollen and spores. The majority of these plant microfossils were derived from the various types of tropical lowland vegetation such as mangrove (Muller, 1964), mixed peat swamp forest and mixed Dipterocarp forest. Some

75 FR 74650 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2010-12-01

... issues this final temporary rule to implement interim measures to reduce overfishing of gag in the Gulf... this final temporary rule is to reduce overfishing of the gag resource in the Gulf. DATES: This rule is... rule is to reduce overfishing of the gag resource in the Gulf. No changes were made to this final rule...

Saudis map $450 million gulf spill cleanup

International Nuclear Information System (INIS)

Anon.

1991-01-01

This paper reports on Saudi Arabia which has earmarked about $450 million to clean up Persian Gulf beaches polluted by history's worst oil spills, created during the Persian Gulf crisis. Details of the proposed cleanup measures were outlined by Saudi environmental officials at a seminar on the environment in Dubai, OPEC News Agency reported. The seminar was sponsored by the Gulf Area Oil Companies Mutual Aid Organization, an environmental cooperative agency set up by Persian Gulf governments. Meantime, a Saudi government report has outlined early efforts designed to contain the massive oil spills that hit the Saudi coast before oil could contaminate water intakes at the huge desalination plants serving Riyadh and cooling water facilities at Al Jubail

Assessment of seismic hazards along the northern Gulf of Aqaba

Science.gov (United States)

Abueladas, Abdel-Rahman Aqel

Aqaba and Elat are very important port and recreation cities for the Hashemite Kingdom of Jordan and Israel, respectively. The two cities are the most susceptible to damage from a destructive future earthquake because they are located over the tectonically active Dead Sea transform fault (DST) that is the source of most of the major historical earthquakes in the region. The largest twentieth century earthquake on the DST, the magnitude Mw 7.2 Nuweiba earthquake of November 22, 1995, caused damage to structures in both cities. The integration of geological, geophysical, and earthquake engineering studies will help to assess the seismic hazards by determining the location and slip potential of active faults and by mapping areas of high liquefaction susceptibility. Ground Penetrating Radar (GPR) as a high resolution shallow geophysical tool was used to map the shallow active faults in Aqaba, Taba Sabkha area, and Elat. The GPR data revealed the onshore continuation of the Evrona, West Aqaba, Aqaba fault zones, and several transverse faults. The integration of offshore and onshore data confirm the extension of these faults along both sides of the Gulf of Aqaba. A 3D model of GPR data at one site in Aqaba indicates that the NW-trending transverse faults right laterally offset older than NE-trending faults. The most hazardous fault is the Evrona fault which extends north to the Tabs Sabkha. A geographic information system (GIS) database of the seismic hazard was created in order to facilitate the analyzing, manipulation, and updating of the input parameters. Liquefaction potential maps were created for the region based on analysis of borehole data. The liquefaction map shows high and moderate liquefaction susceptibility zones along the northern coast of the Gulf of Aqaba. In Aqaba several hotels are located within a high and moderate liquefaction zones. The Yacht Club, Aqaba, Ayla archaeological site, and a part of commercial area are also situated in a risk area. A part

Clinical Evaluation of a Proposed New Gulf War Syndrome

National Research Council Canada - National Science Library

Levine, Paul

2001-01-01

Thus far, studies on Gulf War veterans have not defined any syndrome specific to deployed Gulf War veterans, but have only suggested that Persian Gulf War veterans have a higher frequency of a number...

Curcumin Nanoparticle Therapy for Gulf War Illness

Science.gov (United States)

2017-10-01

AWARD NUMBER: W81XWH-16-1-0480 TITLE: Curcumin Nanoparticle Therapy for Gulf War Illness PRINCIPAL INVESTIGATOR: Ashok K. Shetty, Ph.D...Nanoparticle Therapy for Gulf War Illness 5a. CONTRACT NUMBER 5b. GRANT NUMBER W81XWH-16-1-0480 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Ashok K...biodegradable polymer nanosystems (nCUR) for alleviating cognitive, memory and mood impairments in a rat model of gulf war illness (GWI). Specific

Sandwaves of the Gulf of Khambhat

Digital Repository Service at National Institute of Oceanography (India)

Vora, K.H.; Gujar, A.R.; Karisiddaiah, S.M.

In the Gulf of Khambhat (Gujarat, India) the best formed sandwaves are seen in the west close to the Eastern Sand Bank. With increasing clay content and clay cover of the sea bed, the sandwaves become poorly formed. In the southern part of the Gulf...

Gulf of Mexico production still recovering

International Nuclear Information System (INIS)

Koen, A.D.

1992-01-01

This paper reports that the extent of damage caused by Hurricane Andrew to Gulf of Mexico oil and gas installations continues coming into focus. A preliminary tally by Minerals Management Service offers a reasonably complete summary of gulf production and pipeline systems damage detectable at the surface. MMS requires Outer Continental Shelf operators to inspect for underwater damage all platforms, pipelines, risers, and other structures within an 85 mile corridor along the path of Andrew's eye as it churned through the gulf. OCS operators have until Oct. 16 to submit plans for the Level II surveys

76 FR 20957 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2011-04-14

... exceeded for Gulf group king mackerel, Gulf group Spanish mackerel, and Gulf group cobia. It also contains... framework procedure, and separate cobia into Atlantic and Gulf migratory groups. Similar measures are being...

Radon/helium studies for earthquake prediction N-W Himalaya

International Nuclear Information System (INIS)

Virk, H.S.

1999-01-01

The paper presents the preliminary data of radon monitoring stated in the Himalayan orogenic belt. Radon anomalies are correlated with microseismic activity in the N-W Himalaya. The He/Rn ratio will be used as a predictive tool for earthquakes

Gulf of Mexico deep-water

International Nuclear Information System (INIS)

Ott, G.L.

1998-01-01

The deepwater Gulf of Mexico, an emerging basin with 20 BBOE resource potential, was discussed. Technologies are advancing and development options are increasing within the Gulf of Mexico deepwater environment. Deepwater offers significant rate potentials leading to strong cash flows. The projected steep rate of resources captured in the next five years show that there is a short window of opportunity to establish a business position. The major production variables are development costs and cycle time. There is a definite market for Gulf of Mexico products because U.S. energy demand is expected to outstrip U.S. supply. Present infrastructure is capable of moving large volumes of gas into major U.S. markets, but with the large number of projects currently underway, especially in the United States, supply could exceed capacity. 1 tab., 16 figs

Probiotic (VSL 3) for Gulf War Illness

Science.gov (United States)

2016-10-01

Award Number: W81XWH-10-1-0593 TITLE: Probiotic (VSL#3) for Gulf War Illness. PRINCIPAL INVESTIGATOR: Ashok Tuteja, M.D. M.P.H. CONTRACTING...NUMBER Probiotic (VSL#3) for Gulf War Illness. 5b. GRANT NUMBER W81XWH-10-1-0593 5c. PROGRAM ELEMENT NUMBER 6 . AUTHOR(S) 5d. PROJECT NUMBER Ashok...intestinal symptoms (fatigue, joint pain, insomnia, general stiffness and headache) associated with IBS. All of these symptoms are part of the Gulf War

Gulf of Mexico development

International Nuclear Information System (INIS)

Krenz, D.

1998-01-01

In recent years, the Gulf of Mexico (GOM) has seen significant deepwater growth. An overview of the GOM deepwater leaseholds by Shell and developments by competing companies is presented. Deepwater GOM developments, total production from the shelf and from deepwater wells, new offshore pipeline capacity and ownership, and processing plant capacity are also discussed. Significant deepwater growth in the Gulf is anticipated. Despite significant economic and technological challenges, the area is judged to be the prime exploration and production opportunity in the lower 48 states of the USA. tabs., figs

76 FR 65321 - Gulf War Veterans' Illnesses Task Force

Science.gov (United States)

2011-10-20

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force AGENCY: Department of... Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to conduct a comprehensive review of VA's approach to and programs addressing 1990-1991 Gulf War Veterans...

78 FR 28292 - Gulf War Veterans' Illnesses Task Force

Science.gov (United States)

2013-05-14

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force AGENCY: Department of... Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to conduct a comprehensive review of VA's approach to and programs addressing 1990-1991 Gulf War Veterans...

75 FR 16577 - Gulf War Veterans' Illnesses Task Force

Science.gov (United States)

2010-04-01

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force AGENCY: Department of... Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to conduct a comprehensive review of VA's approach to and programs addressing 1990-1991 Gulf War Veterans...

Double-gated Si NW FET sensors: Low-frequency noise and photoelectric properties

International Nuclear Information System (INIS)

Gasparyan, F.; Khondkaryan, H.; Arakelyan, A.; Zadorozhnyi, I.; Pud, S.; Vitusevich, S.

2016-01-01

The transport, noise, and photosensitivity properties of an array of silicon nanowire (NW) p"+-p-p"+ field-effect transistors (FETs) are investigated. The peculiarities of photosensitivity and detectivity are analyzed over a wide spectrum range. The absorbance of p-Si NW shifts to the short wavelength region compared with bulk Si. The photocurrent and photosensitivity reach increased values in the UV range of the spectrum at 300 K. It is shown that sensitivity values can be tuned by the drain-source voltage and may reach record values of up to 2–4 A/W at a wavelength of 300 nm at room temperature. Low-frequency noise studies allow calculating the photodetectivity values, which increase with decreasing wavelength down to 300 nm. We show that the drain current of Si NW biochemical sensors substantially depends on pH value and the signal-to-noise ratio reaches the high value of 10"5. Increasing pH sensitivity with gate voltage is revealed for certain source-drain currents of pH-sensors based on Si NW FETs. The noise characteristic index decreases from 1.1 to 0.7 with the growth of the liquid gate voltage. Noise behavior is successfully explained in the framework of the correlated number-mobility unified fluctuation model. pH sensitivity increases as a result of the increase in liquid gate voltage, thus giving the opportunity to measure very low proton concentrations in the electrolyte medium at certain values of the liquid gate voltage.

50 CFR 226.214 - Critical habitat for Gulf sturgeon.

Science.gov (United States)

2010-10-01

... ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS DESIGNATED CRITICAL HABITAT § 226.214... Sound or the Gulf of Mexico. The Withlacoochee River main stem from Florida State Road 6, Madison and...) Unit 11: Florida Nearshore Gulf of Mexico Unit in Escambia, Santa Rosa, Okaloosa, Walton, Bay, and Gulf...

Western Gulf of Mexico lease sale draws weak response

International Nuclear Information System (INIS)

Koen, A.D.

1992-01-01

This paper reports that puny participation in the federal lease sale for the western Gulf of Mexico reflected a lack of open acreage on attractive prospects and the crisis sweeping the U.S. offshore oil and gas industry. Thirty-eight companies participating in the Minerals Management Service's Outer Continental Shelf Sale 141 offered 81 bids for 61 tracts in the western gulf planning area. That was the fewest bids offered in a western gulf sale since operators offered 52 bids for 41 tracts at Sale 105 in August 1986. The only Gulf of Mexico minerals sale to attract less bonus money was the MMS sulfur and salt sale in the central gulf in February 1988 in which $20.8 million was exposed

Plutonium in the Gulf of Mexico

International Nuclear Information System (INIS)

Scott, M.R.; Salter, P.F.

The geochemistry of fallout plutonium in the sediments of the Gulf of Mexico was studied. A series of sediment cores was collected in a traverse from the deep Gulf of Mexico to the Mississippi Delta. The cores were sliced into 1 cm intervals and analyzed for plutonium. Explanations for the variations in concentration are presented

Water masses in the Gulf of Aden

Digital Repository Service at National Institute of Oceanography (India)

Al Saafani, M.A.; Shenoi, S.S.C.

Hydrographic data collected from Gulf of Aden since 1920 have been compiled to identify and refine the definitions of water masses in the Gulf of Aden (GA) and to describe their spatio-temporal variability. Four water masses have been identified...

Fishery potential of the Gulf of Kachchh

Digital Repository Service at National Institute of Oceanography (India)

Nair, V.R.; Govindan, K.; Ramaiah, Neelam; Gajbhiye, S.N.

Fishery potential of the interior Gulf of Kachchh and adjacent creek regions was reported for the first time as baseline data for future ecological assessment. The experimental trawling and gill netting indicated that the inner Gulf (av. 7.8 kg...

GULF OF MEXICO AQUATIC MORTALITY NETWORK (GMNET)

Science.gov (United States)

Five U.S. states share the northern coast of the Gulf, and each has a program to monitor mortalities of aquatic organisms (fish, shellfish, birds). However, each state has different standards, procedures, and documentation of mortality events. The Gulf of Mexico Aquatic Mortality...

Palaeofloods and ancient fishing weirs in NW Iberian rivers

NARCIS (Netherlands)

Viveen, W.; Sanjurjo-Sanchez, J.; Goy-Dizc, A.; Veldkamp, A.; Schoorl, J.M.

2014-01-01

A 15-m-thick, fluvial sedimentary record of the NW Iberian lower Miño River was studied. Grain-size analyses were performed and twelve samples were dated using optically stimulated luminescence dating techniques, documenting a 1300-yr-old reconstructed fluvial record that does not match with known

Paleosol at the Archean–Proterozoic contact in NW India revisited ...

Indian Academy of Sciences (India)

1. Department of Geology, University of Rajasthan, Jaipur 302 004, India. 2. Institut für .... region around Udaipur (NW India) large occur- rences of .... top of the section reddish colors (iron-oxide leach- ..... for Witwatersrand gold; Soc. Econ.

Fish larvae from the Gulf of California

Directory of Open Access Journals (Sweden)

Gerardo Aceves-Medina

2003-03-01

Full Text Available Taxonomic composition of fish larvae was analysed from 464 plankton samples obtained during 10 oceanographic surveys in the Gulf of California between 1984 and 1988. We identified 283 taxa: 173 species, 57 genera, and 53 families. Tropical and subtropical species predominated except during the winter, when temperate-subarctic species were dominant. The most abundant species were the mesopelagic Benthosema panamense, Triphoturus mexicanus and Vinciguerria lucetia, but the coastal pelagic species Engraulis mordax, Opisthonema spp., Sardinops caeruleus and Scomber japonicus were also prominent. The taxonomic composition of the ichthyoplankton shows the seasonality of the Gulf as well as environmental changes that occurred between the 1984-1987 warm period and the 1956-1957 cool period previously reported. The presence of E. mordax larvae as one of the most abundant species in the Gulf provides evidence of the reproduction of this species two years before the development of the northern anchovy fishery and the decline of the sardine fishery in the Gulf of California.

Influence of the Gulf Stream on the troposphere.

Science.gov (United States)

Minobe, Shoshiro; Kuwano-Yoshida, Akira; Komori, Nobumasa; Xie, Shang-Ping; Small, Richard Justin

2008-03-13

The Gulf Stream transports large amounts of heat from the tropics to middle and high latitudes, and thereby affects weather phenomena such as cyclogenesis and low cloud formation. But its climatic influence, on monthly and longer timescales, remains poorly understood. In particular, it is unclear how the warm current affects the free atmosphere above the marine atmospheric boundary layer. Here we consider the Gulf Stream's influence on the troposphere, using a combination of operational weather analyses, satellite observations and an atmospheric general circulation model. Our results reveal that the Gulf Stream affects the entire troposphere. In the marine boundary layer, atmospheric pressure adjustments to sharp sea surface temperature gradients lead to surface wind convergence, which anchors a narrow band of precipitation along the Gulf Stream. In this rain band, upward motion and cloud formation extend into the upper troposphere, as corroborated by the frequent occurrence of very low cloud-top temperatures. These mechanisms provide a pathway by which the Gulf Stream can affect the atmosphere locally, and possibly also in remote regions by forcing planetary waves. The identification of this pathway may have implications for our understanding of the processes involved in climate change, because the Gulf Stream is the upper limb of the Atlantic meridional overturning circulation, which has varied in strength in the past and is predicted to weaken in response to human-induced global warming in the future.

77 FR 18307 - Gulf War Veterans' Illnesses Task Force Report

Science.gov (United States)

2012-03-27

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force Report AGENCY: Department...) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to conduct a comprehensive review of VA policies and programs addressing 1990-1991 Gulf War Veterans' illnesses. The GWVI-TF...

Natural and Unnatural Oil Layers on the Surface of the Gulf of Mexico Detected and Quantified in Synthetic Aperture RADAR Images with Texture Classifying Neural Network Algorithms

Science.gov (United States)

MacDonald, I. R.; Garcia-Pineda, O. G.; Morey, S. L.; Huffer, F.

2011-12-01

Effervescent hydrocarbons rise naturally from hydrocarbon seeps in the Gulf of Mexico and reach the ocean surface. This oil forms thin (~0.1 μm) layers that enhance specular reflectivity and have been widely used to quantify the abundance and distribution of natural seeps using synthetic aperture radar (SAR). An analogous process occurred at a vastly greater scale for oil and gas discharged from BP's Macondo well blowout. SAR data allow direct comparison of the areas of the ocean surface covered by oil from natural sources and the discharge. We used a texture classifying neural network algorithm to quantify the areas of naturally occurring oil-covered water in 176 SAR image collections from the Gulf of Mexico obtained between May 1997 and November 2007, prior to the blowout. Separately we also analyzed 36 SAR images collections obtained between 26 April and 30 July, 2010 while the discharged oil was visible in the Gulf of Mexico. For the naturally occurring oil, we removed pollution events and transient oceanographic effects by including only the reflectance anomalies that that recurred in the same locality over multiple images. We measured the area of oil layers in a grid of 10x10 km cells covering the entire Gulf of Mexico. Floating oil layers were observed in only a fraction of the total Gulf area amounting to 1.22x10^5 km^2. In a bootstrap sample of 2000 replications, the combined average area of these layers was 7.80x10^2 km^2 (sd 86.03). For a regional comparison, we divided the Gulf of Mexico into four quadrates along 90° W longitude, and 25° N latitude. The NE quadrate, where the BP discharge occurred, received on average 7.0% of the total natural seepage in the Gulf of Mexico (5.24 x10^2 km^2, sd 21.99); the NW quadrate received on average 68.0% of this total (5.30 x10^2 km^2, sd 69.67). The BP blowout occurred in the NE quadrate of the Gulf of Mexico; discharged oil that reached the surface drifted over a large area north of 25° N. Performing a

US Gulf operators take the long view

International Nuclear Information System (INIS)

Flatern, Rick von

1999-01-01

Oil projects in the Gulf of Mexico have suffered from the crash in oil prices in the mid-1980s, however as these projects tend to be long-term and therefore less sensitive to current oil prices, many are continuing to be funded. It is now believed by deepwater exploration operators that the Gulf of Mexico may be one of the world's most promising sources of new reserves. This article analyses the likely future exploration of deepwater reserves by major companies such as Shell, noted for its capital intensive and technologically innovative activity in the Gulf, as well as the newer, smaller independent operators. (UK)

76 FR 59102 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Science.gov (United States)

2011-09-23

... Atlantic; Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 10 AGENCY: National... Fishery Management Plan for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (FMP), as... implemented, this rule would revise the lobster species contained within the fishery management unit...

76 FR 75488 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Science.gov (United States)

2011-12-02

... Atlantic; Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 10 AGENCY: National... Plan for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (FMP), as prepared and... the lobster species contained within the fishery management unit; establishes an annual catch limit...

Gulf Shrimp System

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Gulf of Mexico Shrimp Landings - This data set contains catch (landed catch) and effort for fishing trips made by the larger vessels that fish near and offshore for...

Continental breakup by oblique extension: the Gulf of California

Science.gov (United States)

van Wijk, J.; Axen, G. J.

2017-12-01

We address two aspects of oblique extension: 1) the evolution of pull-apart basins, and how/when they may evolve into seafloor spreading segments; and 2) the formation of microcontinents. The Gulf of California formed by oblique extension. Breakup resulted in oceanic crust generation in the southern and central parts, while in the northern Gulf/Salton Trough a thick layer of (meta-)sediments overlies thinned continental crust. We propose a simple mechanism to explain this N-S variation. We assume that oblique rifting of the proto-Gulf province resulted in pull-apart basins, and use numerical models to show that such pull-apart basins do not develop into seafloor spreading segments when their length-to-width ratios are small, as is the case in the northern Gulf. In the central and southern Gulf the length-to-width ratios were larger, promoting continent rupture. The mechanisms behind this fate of pull-apart basins will be discussed in the presentation. In the southern Gulf, potential field models show that the Tamayo Bank in the southern Gulf is likely a microcontinent, separated from the main continent by the Tamayo trough. The thickness of the ocean crust in the Tamayo trough is anomalously small, suggesting that initial seafloor spreading was magma-starved and unsuccessful, causing the location of rifting and seafloor spreading to jump. As a consequence a sliver of continent broke off, forming the microcontinent. We suggest that worldwide this may be a common process for microcontinent formation.

Epidemiological Studies Persian Gulf War Illnesses Persian Gulf Women's Health Linkage Study

National Research Council Canada - National Science Library

Klemm, Rebecca

1997-01-01

The Persian Gulf Women's Health Linkage Study will provide baseline health and risk factor information to estimate the prevalence of selected health conditions, with an emphasis on reproductive health...

76 FR 54727 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Science.gov (United States)

2011-09-02

... RIN 0648-AY72 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of...) have submitted Amendment 10 to the Fishery Management Plan for the Spiny Lobster Fishery of the Gulf of... actions to revise the lobster species contained within the fishery management unit; revise definitions of...

Study of the particulate matter transfer and dumping using {sup 210} Po et le {sup 210} Pb. Application to the Gulf of Biscary (NE Atlantic Ocean) and the Gulf of Lion (NW Mediterranean Sea) continental margins; Etude du transfert et du depot du materiel particulaire par le {sup 210} Po et le {sup 210} Pb. Application aux marges continentales du Golfe de Gascogne (NE Atlantique) et du Golfe du Lion (NW Mediterranee)

Energy Technology Data Exchange (ETDEWEB)

Radakovitch, O

1995-07-07

{sup 210} Po and {sup 210} Pb activities and fluxes were measured on seawater, sediment-trapped material collected during one year and sediment. Focalization of {sup 210} Pb is clearly noticed on the Cap-Ferret canyon (Gulf of Biscary) and the Lacaze-Duthiers canyon (western part of the Gulf of Lion). In both sites, {sup 210} Pb fluxes in traps and sediment are always higher than {sup 210} Pb flux available from atmospheric and in situ production. On the contrary, Grand-Rhone canyon and its adjacent open slope exhibit a {sup 210} Pb budget near equilibrium in the near-bottom sediment traps, but focalization is important in the sediment. For the entire Gulf of Lion margin, focalization of {sup 210} Pb in the sediment occurred principally between 500 and 1500 m water depth on the slope, and on the middle shelf mud-patch. {sup 210} Po and {sup 210} Pb have been used in the Cap Ferret and Grand-Rhone canyons to characterize the origin of the particulate trapped material. Two main sources feed the water column. The first source, localized in surface waters, is constituted by biogenic particles from primary production and lithogenic material. The second source, deeper, is due to resuspension at the shelf break and/or on the open slope. In each site, {sup 210} Po and {sup 210} Pb activities of the trapped particles did not show any relations with the major constituents. Quantity of particles appeared to be the main factor regulating adsorption processes of these nuclides. Sedimentation rates based on {sup 210} Po profiles decreased with increasing water depth, from 0.4 ti 0.06 cm y-1 on the Cap Ferret canyon (400 to 3000 m water depth) and from 0.5 to 0.05 cm y-1 for the entire Gulf of Lion margin (50 to 2000 m water depth). (author). 243 refs.

Free and forced Rossby normal modes in a rectangular gulf of arbitrary orientation

Science.gov (United States)

Graef, Federico

2016-09-01

A free Rossby normal mode in a rectangular gulf of arbitrary orientation is constructed by considering the reflection of a Rossby mode in a channel at the head of the gulf. Therefore, it is the superposition of four Rossby waves in an otherwise unbounded ocean with the same frequency and wavenumbers perpendicular to the gulf axis whose difference is equal to 2mπ/W, where m is a positive integer and W the gulf's width. The lower (or higher) modes with small m (or large m) are oscillatory (evanescent) in the coordinate along the gulf; these are elucidated geometrically. However for oceanographically realistic parameter values, most of the modes are evanescent. When the gulf is forced at the mouth with a single Fourier component, the response is in general an infinite sum of modes that are needed to match the value of the streamfunction at the gulf's entrance. The dominant mode of the response is the resonant one, which corresponds to forcing with a frequency ω and wavenumber normal to the gulf axis η appropriate to a gulf mode: η =- β sin α/(2ω) ± Mπ/W, where α is the angle between the gulf's axis and the eastern direction (+ve clockwise) and M the resonant's mode number. For zonal gulfs ω drops out of the resonance condition. For the special cases η = 0 in which the free surface goes up and down at the mouth with no flow through it, or a flow with a sinusoidal profile, resonant modes can get excited for very specific frequencies (only for non-zonal gulfs in the η = 0 case). The resonant mode is around the annual frequency for a wide range of gulf orientations α ∈ [40°, 130°] or α ∈ [220°, 310°] and gulf widths between 150 and 200 km; these include the Gulf of California and the Adriatic Sea. If η is imaginary, i.e. a flow with an exponential profile, there is no resonance. In general less modes get excited if the gulf is zonally oriented.

Northern Gulf Littoral Initiative (NGLI), Geology and Physical Properties of Marine Sediments in the N.E. Gulf of Mexico: Data Report

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Northern Gulf Littoral Initiative (NGLI), Geology and Physical Properties of Marine Sediments in the N.E. gulf of Mexico: Data Report, was produced by the U.S....

77 FR 25116 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Science.gov (United States)

2012-04-27

...-BB44 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf... (Councils) have submitted Amendment 11 to the Fishery Management Plan for the Spiny Lobster Fishery of the... proposes to limit spiny lobster fishing using trap gear in certain areas in the exclusive economic zone off...

Gulf operators resuming production

International Nuclear Information System (INIS)

Koen, A.D.

1992-01-01

This paper reports that Gulf of Mexico operators last week were gradually restoring production at installations struck by Hurricane Andrew. The Minerals Management Service continued receiving reports of more damage. By the end of the day Sept. 8, MMS had received reports of damage to 83 pipeline segments and 193 platforms and satellite installations. Damage reports listed 112 installations with structural damage, 13 platforms toppled and five leaning, and 30 satellite platforms toppled and 33 leaning. But despite the extent of damage the storm inflicted on oil and gas installations in the gulf, it pales in comparison to the misery and suffering the storm caused in Florida and Louisiana, an oil company official said

CRED REA Algal Assessments at Necker, NW Hawaiian Islands in 2006

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Twelve quadrats were sampled along 2 consecutively-placed, 25m transect lines, as part of Rapid Ecological Assessments, conducted at 2 sites at Necker in the NW...

CRED REA Algal Assessments at Laysan, NW Hawaiian Islands in 2006

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Twelve quadrats were sampled along 2 consecutively-placed, 25m transect lines, as part of Rapid Ecological Assessments, conducted at 3 sites at Laysan in the NW...

75 FR 63786 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2010-10-18

... interim measures to reduce overfishing of gag in the Gulf of Mexico (Gulf). This proposed rule would... Fishery Management Council (Council). The intended effect of this proposed rule is to reduce overfishing... Act requires NMFS and regional fishery management councils to prevent overfishing and achieve, on a...

75 FR 63780 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2010-10-18

... shallow water grouper (SWG) species, and require vessels with valid commercial Gulf of Mexico (Gulf) reef... that the stock continues to be neither overfished nor undergoing overfishing. However, this update... migratory species (HMS) species and relatively less dependent on landings of deep-water grouper species. On...

Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman

Science.gov (United States)

Rezaie-Atagholipour, Mohsen; Ghezellou, Parviz; Hesni, Majid Askari; Dakhteh, Seyyed Mohammad Hashem; Ahmadian, Hooman; Vidal, Nicolas

2016-01-01

Abstract The Persian Gulf is known as the westernmost distribution limit for sea snakes, except for Hydrophis platurus (Linnaeus, 1766) that reaches southeastern Africa. Previous identification guides for sea snakes of the Persian Gulf and its adjacent waters in the Gulf of Oman were based on old data and confined mostly to written descriptions. Therefore, a series of field surveys were carried out in 2013 and 2014 through Iranian coastal waters of both gulfs to provide a comprehensive sampling of sea snakes in the area. This paper presents an illustrated and updated checklist and identification tool for sea snakes in the Persian Gulf and Gulf of Oman, which are based on new material and a review of the literature. This checklist includes ten species of marine hydrophiines, of which one, Microcephalophis cantoris (Günther, 1864), is a new record for the area. All specimens examined herein are deposited and available at the Zoological Museum of Shahid Bahonar University of Kerman, Kerman province, Iran. PMID:27843383

75 FR 64171 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2010-10-19

... prevent overfishing of Gulf greater amberjack. DATES: Closure is effective 12:01 a.m., local time, October... harvest to the quota is crucial to meeting the legal requirements to prevent and end overfishing and.... This closure is intended to prevent overfishing of Gulf greater amberjack and increase the likelihood...

77 FR 8810 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2012-02-15

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory... East Beach Blvd., Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council, 2203..., Deputy Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630...

75 FR 7444 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2010-02-19

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory...., Orange Beach, AL 36561. Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois... Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION...

Deep-water northern Gulf of Mexico hydrocarbon plays

International Nuclear Information System (INIS)

Peterson, R.H.; Cooke, D.W.

1995-01-01

The geologic setting in the deep-water (depths greater than 1,500 feet) Gulf of Mexico is very favorable for the existence of large, commercial hydrocarbon accumulations. These areas have active salt tectonics that create abundant traps, underlying mature Mesozoic source rocks that can be observed expelling oil and gas to the ocean surface, and good quality reservoirs provided by turbidite sand deposits. Despite the limited amount of drilling in the deep-water Gulf of Mexico, 11 deep-water accumulations have been discovered which, when developed, will rank in the top 100 largest fields in the Gulf of Mexico. Proved field discoveries (those with announced development plans) have added over 1 billion barrels of oil equivalent to Gulf of Mexico reserves, and unproved field discoveries may add to additional billion barrels of oil equivalent. The Minerals Management Service, United States Department of the Interior, has completed a gulf-wide review of over 1,086 oil and gas fields and placed every pay sand in each field into a hydrocarbon play (plays are defined by chronostratigraphy, lithostratigraph, structure, and production). Seven productive hydrocarbon plays were identified in the deep-water northern Gulf of Mexico. Regional maps illustrate the productive limits of each play. In addition, field data, dry holes, and wells with sub-economic pay were added to define the facies and structural limits for each play. Areas for exploration potential are identified for each hydrocarbon play. A type field for each play is chosen to demonstrate the play's characteristics

The Gulf of Mexico research initiative: It takes a village

Science.gov (United States)

Colwell, Rita R.

2016-07-01

The Gulf of Mexico Research Initiative (GoMRI) was established at the time of one of the most significant ecological events in recent memory, the Deepwater Horizon oil spill. Defined by the discharge of over 150 million gallons of crude oil and the introduction of over 1.8 million gallons of chemical dispersants into the Gulf system, the impacts of the Deepwater Horizon disaster reached the Gulf Coast's wetlands and beaches and impacted the surface and deep ocean. The ecological story of the event reveals a strong linkage between the deep sea research community and research priorities in the Gulf of Mexico (coastal processes, human health, etc.). Deep Sea research efforts have revealed critical parts of the story, providing information on transport, fate, and effects of the Deepwater Horizon oil release and subsequent recovery of the Gulf of Mexico ecosystems.

BAROMETRIC PRESSURE and Other Data from ALPHA HELIX From Chukchi Sea and Others from 19920724 to 19921027 (NODC Accession 9300161)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Conductivity, Temperature and Depth (CTD) and other data were collected in Gulf of Alaska, Chukchi Sea, and NW Pacific (limit-180). Data was collected from...

Gulf War Syndrome: a review of current knowledge and understanding.

Science.gov (United States)

Minshall, D

2014-01-01

The 1991 Persian Gulf War was a resounding military success for coalition forces, who liberated Kuwait following the Iraqi invasion. The medical legacy we have from the conflict is the poorly understood, yet remarkable, phenomenon of Gulf War Syndrome, which surfaced soon after. Epidemiological research has proven beyond doubt that Gulf War veterans report a wide variety of symptoms, in excess of appropriately matched control subjects, and experience worse general health. Numerous toxic environmental hazards have been suggested as causes of Gulf War Syndrome, yet exhaustive scientific study has failed to provide conclusive proof of any link. No novel or recognised disease has been found to account for the symptomatic burden of veterans, and the optimal treatment remains uncertain. This understanding can be added to from an anthropological perspective, where the narratives of those afflicted provide further insight. The nature of military life was changing at the time of the Gulf War, challenging the identity and beliefs of some veterans and causing socio-cultural distress. The symptomatic presentation of Gulf War Syndrome can be considered an articulation of this disharmony. Gulf War Syndrome can also be considered within the group of post-combat disorders such as shellshock, the like of which have occurred after major wars in the last century. With the current withdrawal from Afghanistan, the Defence Medical Services (DMS) should heed the lessons of history.

Crust and mantle of the gulf of Mexico

Science.gov (United States)

Moore, G.W.

1972-01-01

A SEEMING paradox has puzzled investigators of the crustal structure of the Gulf of Mexico since Ewing et al.1 calculated that a unit area of the rather thick crust in the gulf contains less mass than does a combination of the crust and enough of the upper mantle to make a comparable thickness in the Atlantic Ocean. They also noted that the free-air gravity of the gulf is essentially normal and fails by a large factor to be low enough to reflect the mass difference that they calculated. We propose a solution to this problem. ?? 1972 Nature Publishing Group.

77 FR 41376 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2012-07-13

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Internet. Please go to the Gulf of Mexico Fishery Management Council's Web site at www.gulfcouncil.org for instructions. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100...

78 FR 33070 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2013-06-03

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a public meeting. DATES: The...; telephone: (850) 433-3336. Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois... Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION...

76 FR 22345 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2011-04-21

... effective January 1, 2011, and implement interim measures to reduce overfishing of gag in the Gulf of Mexico... effect of this proposed rule is to reduce overfishing of the gag resource in the Gulf. DATES: Written... to prevent overfishing and achieve, on a continuing basis, the optimum yield (OY) from federally...

75 FR 2469 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2010-01-15

.... SUMMARY: NMFS issues this proposed rule to implement Amendment 31 to the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico Fishery Management... proposed rule is to balance the continued operation of the bottom longline component of the reef fish...

Keeping Safe Online: Perceptions of Gulf Adolescents

Science.gov (United States)

Alqahtani, Abdulmagni Mohammed

2016-01-01

With an increasing number of young people across the Gulf States now having access to the internet, the online safety of these adolescents is of concern. In a survey of 115 adolescents from the Gulf States, it was found that, although there are many benefits to young people, the risks of online usage are not fully understood by teenagers or their…

Oil and politics: the post-war Gulf

International Nuclear Information System (INIS)

Stevens, P.

1992-01-01

This report considers the path of international crude oil prices for the remainder of the decade. The report intends to concentrate on the role of the main Gulf oil producing states. Specifically, it seeks to consider the impact of the Iraqi invasion of Kuwait and its aftermath on the Gulf's role in the oil price equation. The report begins by developing an analytical framework which allows the relevant driving forces to be placed in context. From this framework, three issues will emerge central to the Gulf's role in the determination of oil prices: the size and distribution of any excess capacity to produce crude oil; the pricing objectives of those who control that excess capacity; and finally the cohesion of those who control the excess capacity. (author)

78 FR 9888 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2013-02-12

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Artificial... Thursday, February 28, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management... INFORMATION CONTACT: Dr. John Froeschke, Fishery Biologist- Statistician; Gulf of Mexico Fishery Management...

78 FR 9372 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2013-02-08

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Private.... on Tuesday, February 26, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... INFORMATION CONTACT: Dr. John Froeschke, Fishery Biologist- Statistician; Gulf of Mexico Fishery Management...

78 FR 42755 - Gulf of Mexico Fishery Management Council; Public Hearings

Science.gov (United States)

2013-07-17

...: The Gulf of Mexico Fishery Management Council (Council) will hold public hearings for Coastal... through Friday August 15, 2013 at ten locations throughout the Gulf of Mexico. The public hearings will...; Mobile, AL; Corpus Christi and Texas City, TX. Council address: Gulf of Mexico Fishery Management Council...

Hurricane slams gulf operations

International Nuclear Information System (INIS)

Anon.

1992-01-01

This paper reports that reports of damage by Hurricane Andrew escalated last week as operators stepped up inspections of oil and gas installations in the Gulf of Mexico. By midweek, companies operating in the gulf and South Louisiana were beginning to agree that earlier assessments of damage only scratched the surface. Damage reports included scores of lost, toppled, or crippled platforms, pipeline ruptures, and oil slicks. By midweek the U.S. coast Guard had received reports of 79 oil spills. Even platforms capable of resuming production in some instances were begin curtailed because of damaged pipelines. Offshore service companies the another 2-4 weeks could be needed to fully assess Andrew's wrath. Lack of personnel and equipment was slowing damage assessment and repair

Zubarah, the Gulf and local and international trade

DEFF Research Database (Denmark)

Simonsen, Jørgen Bæk

2014-01-01

The deeply etched tracks of human achievement in the Gulf region since prehistory reflect a dynamic interplay between local, neighbouring and inter-regional agencies. Geography, resources, the exchange of commodities and the transfer of ideas elevated the status of the Gulf to that of a major...

Transformation of PBDE mixtures during sediment transport and resuspension in marine environments (Gulf of Lion, NW Mediterranean Sea)

International Nuclear Information System (INIS)

Salvadó, Joan A.; Grimalt, Joan O.; López, Jordi F.; Durrieu de Madron, Xavier; Heussner, Serge; Canals, Miquel

2012-01-01

Polybromodiphenyl ethers (PBDEs) in superficial sediments from the Gulf of Lion were studied. They were largely predominated by BDE 209 (98.7% of all PBDEs) indicating that the main source of these pollutants was the commercial mixture deca-BDE. This compound and the less brominated BDE exhibited a southwestward decreasing concentration gradient following the dominant marine currents and bottom relief, e.g. the Mud Belt, the submarine canyons and the Open Continental Slope. All PBDEs exhibited statistically significant correlations confirming the common origin. However, a progressive transformation of the dumped BDE 209 was identified showing a depletion paralleled by increases of the less brominated BDEs (from 8.6% to 22%). These less brominated compounds were accumulated at about 100–140 km away from the Rhone prodelta, e.g. at the end of the submarine canyons, evidencing that these transformation compounds can be accumulated at long distances from the dumping sites in the marine system. Highlights: ► Polybromodiphenyl ethers are associated to organic carbon in marine sediments. ► PBDEs in marine sediments can accumulate further away than 140 km from the spill site. ► BDE-209 in marine sediments generate congeners found in banned commercial mixtures. ► BDE-209 in marine sediments generates new congeners not found in commercial mixtures. ► Submarine canyons channel PBDEs from the continental platform to the deep shelf. - Decomposition of decabromodiphenyl ether in marine sediments generates congeners found in banned mixtures in areas located far away from the discharge sites.

Marine modification of terrestrial influences on Gulf hypoxia: Part II

Directory of Open Access Journals (Sweden)

2007-01-01

Full Text Available This study examines potential marine modification of two classes of terrestrial influence on Gulf hypoxia: (1 the flow of nutrient-rich water from the Mississippi/Atchafalaya River Basin and (2 the massive physical, hydrological, chemical and biological change associated with the Atchafalaya’s partial capture of the Mississippi River. The latter involves repartitioning of a total flow of about 20 000 m3 sec−1, equal to that of 13 Nile Rivers, and a sediment load of 210 million metric tonnes yr−1,nearly 20 times that delivered by all of the rivers of the East Coast of the USA. Also involved is the loss of hundreds-to-thousands of years of stored nutrients and organic matter to the Gulf from enormous coastal wetland loss. This study found that the oceanography of the Gulf minimises the impact of both classes of terrestrial influence from the Mississippi River and its nearby estuaries on Gulf hypoxia. Oceanographic conditions give events associated with the Atchafalaya River a disproportionately large influence on Gulf hypoxia. A truly holistic environmental approach which includes the full effects of this highly dynamic coastal area is recommended to better understand and control Gulf hypoxia.

Geoarchaeological response to landscape changes of the Greek continental shelf since the Last Glacial Maximum

Science.gov (United States)

Kapsimalis, Vasilios; Pavlopoulos, Kosmas; Panagiotopoulos, Ioannis

2010-05-01

An overview of geological, sedimentological, palaeoclimatic, archaeological and mythological data is presented in order to detect the geomorphological changes of the Aegean and Ionian shelves during the last sea-level transgression, and comprehend the consequent prehistoric human adaptations. The irregular rise of sea level since the Last Glacial Maximum forced the Palaeolithic human to abandon its settlements located near the old (lower) coastlines and to move landward in new positions. Commonly, the coastline movement was very slow causing no significant impact on human activities; however in some cases, the transgression was very prompt causing human migration towards highlands. In some very gentle-dipped and wide regions, e.g. the North Aegean plateau, the sea-level rise caused a rapid coastline retreat (in some extreme case as fast as 10 m/yr) and inundation of an extended surface area. However, at the same time, in the steep parts of the Greek shelf, e.g. the Kyparissiakos Gulf and Crete, the coastline advanced landwards with a slow motion (commonly, a few cm/yr) covering small areas. In addition, coastal regions with particular geomorphologic characteristics, e.g. coastal paleo-lakes protected by a sill (gulfs of Corinth, Amvrakikos, Pagasitikos Evvoikos, Saronikos), were deluged by the sea during different periods and under different intensity, depending on the elevation of the sill and the manner of its overflow. Although the presence of Palaeolithic human in the Greek mainland has been confirmed by several archaeological excavations, there is no certain evidence for human settlement in the deep parts of Greek shelf. However, many archaeologists have suggested that some of Palaeolithic people lived on the shelf, when the sea level was lower than its present position. Nevertheless, some potential Palaeolithic migration routes can be indicated taking into account (a) the palaeogeographic reconstruction of Greek shelf over the Last Quaternary; (b

Petroleum service projects in the Gulf of Guinea

Science.gov (United States)

Ken-Worgu, Kenneth Chukwumeka

2011-07-01

The goal of this record of study is to examine the major facets involved in managing several petroleum service projects located in three different countries in the Gulf of Guinea simultaneously, while effectively engaging in business development activities for the Oil and Industrial Services Group (OIS). This work also furnishes adequate background on related subject matters to enable understanding of the projects presented. The petroleum services sector is the back bone of the oil and gas industry. Services companies are vital to the success of all petroleum and energy producers in the USA, the Gulf of Guinea and the world. There is a need and demand for these service companies because they play various roles such as logistics, drilling, construction, dredging, pipe laying, procurement, food supply, human resource supply, etc. The Gulf of Guinea comprises of countries from west and central Africa. This project was limited to Nigeria, Equatorial Guinea and Cameroon. This area holds the largest petroleum reserves in Africa and plays a vital role in the global supply of petroleum. The Oil and Industrial Services Group (OIS), plans to establish herself as one of the leading petroleum service companies in this gulf. To manage this expansion, I have taken the role of Gulf of Guinea manager to apply my background as a petroleum engineer as well as my business skills to build a successful division of the company. This work provides a record of study of the management of services, projects and contracts carried out by the OIS group in the gulf of Guinea. The following are the specific projects in the Gulf of Guinea that I participated in: Managing delivering, maintenance and marketing of offshore vessels, Offshore pipe laying project, Integrated pipeline maintenance project, Development a petroleum technical training facilities, Agbami pipe insulation project, Engineering lift project and Capital budgeting analysis for potential investments. The details of the specific

Definition of Greater Gulf Basin Lower Cretaceous and Upper Cretaceous Lower Cenomanian Shale Gas Assessment Unit, United States Gulf of Mexico Basin Onshore and State Waters

Science.gov (United States)

Dennen, Kristin O.; Hackley, Paul C.

2012-01-01

An assessment unit (AU) for undiscovered continuous “shale” gas in Lower Cretaceous (Aptian and Albian) and basal Upper Cretaceous (lower Cenomanian) rocks in the USA onshore Gulf of Mexico coastal plain recently was defined by the U.S. Geological Survey (USGS). The AU is part of the Upper Jurassic-Cretaceous-Tertiary Composite Total Petroleum System (TPS) of the Gulf of Mexico Basin. Definition of the AU was conducted as part of the 2010 USGS assessment of undiscovered hydrocarbon resources in Gulf Coast Mesozoic stratigraphic intervals. The purpose of defining the Greater Gulf Basin Lower Cretaceous Shale Gas AU was to propose a hypothetical AU in the Cretaceous part of the Gulf Coast TPS in which there might be continuous “shale” gas, but the AU was not quantitatively assessed by the USGS in 2010.

Last millennium sedimentation in the Gulf of Cariaco (NE Venezuela): Evidence for morphological changes of gulf entrance and possible relations with large earthquakes

Science.gov (United States)

Aguilar, Iliana; Beck, Christian; Audemard, Franck; Develle, Anne-Lise; Boussafir, Mohammed; Campos, Corina; Crouzet, Christian

2016-01-01

The Cariaco Basin and the Gulf of Cariaco in Venezuela are two major basins along the seismogenic El Pilar right lateral fault, among which the Cariaco Basin is a pull-apart. Both basins are sites of anoxia and organic-rich deposits. To examine whether the sediments in the Gulf of Cariaco have recorded traces of historical or prehistorical earthquakes, we extracted and analyzed twelve 1 m-long gravity cores, sampling the last millennium sedimentation. We focused on analyzing the sediment sources with different techniques (particle size analysis, XRF, loss on ignition tests, magnetic properties, Rock-Eval pyrolysis, 14C dating). The results confirm that major upwelling occurs at the western gulf entrance and makes deep water flowing from the Cariaco Basin into the Gulf of Cariaco. These flows carry an organic-rich suspended load. Furthermore, we found evidence of a particular, widespread fine-grained siliciclastic deposit (named SiCL3) within the gulf, whose age suggests that it likely formed during the large 1853 AD earthquake that stroke the Cumaná city. We suggest that the earthquake-induced large submarine landslides that modified the topography of the gulf's entrance, which in turn promoted upwelling and open marine water flows from the Cariaco Basin. The layer SiCL3 would be the sediment load remobilized during this chain of events.

75 FR 7444 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2010-02-19

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a web based meeting of the... via internet. Please go to the Gulf of Mexico Fishery Management Council's website at www.gulfcouncil.org for instructions. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue...

Energy partnership: China and the Gulf states

International Nuclear Information System (INIS)

Bahgat, G.

2005-01-01

One of the most significant developments in the global energy market in the last several years has been China's skyrocketing demand for energy. In 1993, China became a net oil importer for the first time in its history and in 2003 replaced Japan as the world's second-largest oil importer (after the United States). The country needs more energy to maintain its spectacular economic performance. This study examines China's attempts to satisfy its growing needs for oil and natural gas by increasing imports from Russia and Central Asia/Caspian Sea region. The analysis suggests that despite growing cooperation between the two sides, the Gulf region is likely to satisfy most of China's hydrocarbons needs. Energy partnership between China and the Gulf has already started and is likely to be consolidated over the next few decades. The study also argues that this growing partnership between China and the Gulf should not be seen as a threat to any third party. The global energy market is well-integrated. Energy policy should not be seen in zero-sum terms. A China-Gulf partnership will benefit both sides and contribute to the stability of global energy markets. (author)

The Gulf War Nuclear, Biological, and Chemical Lessons Learned

National Research Council Canada - National Science Library

Ugone, Mary

2001-01-01

This audit was requested by the Office of the Special Assistant for Gulf War Illnesses, Medical Readiness and Military Deployments, which has the authority to coordinate all aspects of Gulf War investigations for DoD...

Astronaut observations of the Persian (Arabian) Gulf during STS-45

Science.gov (United States)

Ackleson, Steven G.; Pitts, David E.; Sullivan, Kathryn D.; Reynolds, R. M.

1992-01-01

As a result of the 1991 Persian Gulf war, between mid-January and June 1991, the Persian Gulf was contaminated with an estimated 4 to 6 million barrels of crude oil, released directly into the Gulf from refinement facilities, transhipment terminals, and moored tankers along the coast of Kuwait, and precipitated from oil fire smoke plumes. To assess the environmental impact of the oil, an international team of marine scientists representing 14 nations was assembled under the auspices of the United Nations International Oceanic Commission and the Regional Organization for Protection of the Marine Environment to conduct detailed surveys of the Persian Gulf, the Strait of Hormuz, and the Gulf of Oman, including hydrographic, chemical, and biological measurements. To supplement the field surveys and to serve as an aid in data interpretation, astronauts aboard the Space Shuttle Atlantis photographed water features and coastal habitats in the Persian Gulf during mission STS-45 (24 March to 02 April 1992). The astronauts collected 111 hand-held, color photographs of the Gulf (72 70-mm photographs and 39 5-inch photographs) from an altitude of 296 km (160 n.mi.). The photographs reveal distributions in water turbidity associated with outflow from the Shatt-al-Arab and water circulation along the entire coast of Iran and the Strait of Hormuz, coastal wetlands and shallow-water habitats, and sticks appearing in the sunglint pattern, which appear to be oil.

78 FR 14980 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2013-03-08

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene scoping meetings to discuss a For-Hire... through April 3, 2013 at eight locations throughout the Gulf of Mexico. The scoping meetings will begin at..., TX. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100...

The Gulf Security Dialogue and Related Arms Sale Proposals

National Research Council Canada - National Science Library

Blanchard, Christopher M; Grimmett, Richard F

2008-01-01

...) security cooperation under the auspices of a new Gulf Security Dialogue (GSD). The Dialogue now serves as the principal security coordination mechanism between the United States and the six countries of the Gulf Cooperation Council (GCC...

210Po and 210Pb trophic transfer within the phytoplankton–zooplankton–anchovy/sardine food web: a case study from the Gulf of Lion (NW Mediterranean Sea)

International Nuclear Information System (INIS)

Strady, Emilie; Harmelin-Vivien, Mireille; Chiffoleau, Jean François; Veron, Alain; Tronczynski, Jacek; Radakovitch, Olivier

2015-01-01

The transfer of 210 Po and 210 Pb in the food web of small pelagic fishes (from phytoplankton and zooplankton to anchovy Engraulis encrasicolus and sardine Sardina pilchardus) is investigated in the Gulf of Lion (GoL). We present original data of 210 Po and 210 Pb activity concentrations, C and N stable isotope ratios, measured (i) from different size classes of phytoplankton and zooplankton during spring and winter in different environments of the GoL, and (ii) in two fish species. Significant spatial patterns based on 210 Po, 210 Pb activity concentrations and 210 Po/ 210 Pb ratios in the different plankton size classes are evidenced by hierarchical clustering, both in spring and winter. This variability, also observed for C and N stable isotopes ratios, is connected to local specific pelagic habitats and hydrodynamics. The sampling strategy suggests that 210 Po bioaccumulation in the GoL remains at a constant level from the first (dominated by phytoplankton) to the second trophic level (zooplankton), while 210 Pb bioaccumulation shows an increase in winter. Based on stable N isotope ratios and 210 Po activity concentrations measured in anchovies and sardines, we evidence 210 Po bio-magnification along the trophic food web of these two planktivorous pelagic fishes. - Highlights: • 210 Po and 210 Pb activity concentrations in plankton vary up to a factor of two in the Gulf of Lion (East vs West). • 210 Po and 210 Pb variability is connected to local specific pelagic habitats. • Bio-magnification of 210 Po is evidenced in anchovy/sardine foodwebs

Looking for Larvae Above an Erupting Submarine Volcano, NW Rota-1, Mariana Arc

Science.gov (United States)

Beaulieu, S.; Hanson, M.; Tunnicliffe, V.; Chadwick, W. W., Jr.; Breuer, E. R.

2016-02-01

In 2009 the first marine protected areas for deep-sea hydrothermal vents in U.S. waters were established as part of the Volcanic Unit of the Marianas Trench Marine National Monument. In this region, hydrothermal vents are located along the Mariana Arc and back-arc spreading center. In particular hydrothermal vents are located near the summit of NW Rota-1, an active submarine volcano on the Mariana Arc which was erupting between 2003 and 2010 and ceased as of 2014. NW Rota-1 experienced a massive landslide in late 2009, decimating the habitat on the southern side of the volcano. This project looked at zooplankton tow samples taken from the water column above NW Rota-1 in 2010, searching for larvae which have the potential to recolonize the sea floor after such a major disturbance. Samples were sorted in entirety into coarse taxa, and then larvae were removed for DNA barcoding. Overall zooplankton composition was dominated by copepods, ostracods, and chaetognaths, the majority of which are pelagic organisms. Comparatively few larvae of benthic invertebrates were found, but shrimp, gastropod, barnacle, and polychaete larvae did appear in low numbers in the samples. Species-level identification obtained via genetic barcoding will allow for these larvae to be matched to species known to inhabit the benthic communities at NW Rota-1. Identified larvae will give insight into the organisms which can re-colonize the seafloor vent communities after a disturbance such as the 2009 landslide. Communities at hydrothermal vents at other submarine volcanoes in the Monument may act as sources for these larvae, but connectivity in this region of complex topography is unknown. As the microinvertebrate biodiversity in the Monument has yet to be fully characterized, our project also provides an opportunity to better describe both the zooplankton and benthic community composition in this area of the Monument.

The deepwater Gulf of Mexico : promises delivered?

International Nuclear Information System (INIS)

Pickering, D.R.

1999-01-01

A summary review of deepwater Gulf of Mexico (GOM) oil production was presented for the years 1989 to 1998. Trends and prospects in deepwater GOM production and leasing were assessed. Promises and forecasts made in the early 1990s were compared with what actually happened since then. Forecasts in the early 1990s promised deeper, faster and cheaper developments in the deepwater Gulf. Results of the comparison showed that the prognosticators were correct on all three counts. Regarding the future of the Gulf, one can be justified in being optimistic in so far as more experience, robust economics, more and cheaper rigs can be taken as reliable indicators of optimism. In contrast, there are certain negatives to consider, such as low commodity prices, budget constraints, lease expirations, technical challenges and increased competition. . 12 figs

Pollution in the Gulf: Monitoring the marine environment

International Nuclear Information System (INIS)

Fowler, S.W.

1993-01-01

More than 2 years after the Gulf conflict, scientists are continuing to keep a close watch on marine pollution stemming from the war. Following the conflict in early 1991, major concern was raised worldwide when an estimated four to eight million barrels of crude oil were directly released into the Persian Gulf from the Sea Island terminal in Kuwait. Such amounts clearly made it the largest oil spill in history. The catastrophe was exacerbated when Kuwaiti oil fields were ignited. The magnitude of the pollution, and the types of toxic contaminants involved, led to a worldwide response through the United Nations system. An inter-agency plan of action was developed quickly. As one of its steps, the co-ordinating agency - the United Nations Environment Programme (UNEP) - asked the IAEA's Marine Environment Laboratory (MEL) in Monaco to help make a preliminary assessment of the situation. The Laboratory's main goal in initial surveys was to map the extent and general degree of the war-related pollution throughout the Gulf. Since the initial surveys were done, IAEA-MEL scientists have been engaged in regional follow-up activities in ongoing attempts to obtain a clearer picture of the oil pollution's effects on the Gulf's marine environment. This article highlights the laboratory's work in the Gulf following the 1991 conflict, within the context of co-operative programmes and projects. 1 fig

DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman.

Science.gov (United States)

Khalaji-Pirbalouty, Valiallah; Raupach, Michael J

2016-11-27

Two species of Atarbolana (Cirolanidae: Isopoda) from the intertidal zone of the Gulf of Oman and the Persian Gulf were studied and redescribed. The known distribution of this small genus is limited to the northern areas of the Indian Ocean, from the Pakistan coasts to the Persian Gulf. The analyses of DNA barcodes as well as detailed morphological studies clearly support the existence of three distinct Atarbolana species along the coastal zone of the Persian Gulf and northern Arabian Sea. Furthermore, A. dasycolus Yasmeen, 2004 is synonymized with A. setosa Javed and Yasmeen, 1989.

Arab Gulf States : recruitment of Asian workers

OpenAIRE

JUREIDINI, Ray

2014-01-01

GLMM - Gulf Labour Markets and Migration This paper addresses a neglected area in studies of migrant labor in the Gulf States showing that exploitation of migrant workers occurs before deployment. Evidence from interviews conducted in the five major labour sending countries to Qatar (Philippines, Nepal, Bangladesh, Sri Lanka, and India) suggests that the recruitment procedures and corrupt practices by recruitment agencies and employing company personnel in the receiving country place unski...

75 FR 62109 - Gulf of Mexico Fishery Management Council (Council); Public Meetings

Science.gov (United States)

2010-10-07

... meetings. SUMMARY: The Gulf of Mexico Fishery Management Council (GMFMC) will convene public meetings... Embassy Suites Hotel, 4914 Constitution Ave., Baton Rouge, LA 70808. Council address: Gulf of Mexico... CONTACT: Dr. Stephen Bortone, Executive Director, Gulf of Mexico Fishery Management Council; telephone...

77 FR 40859 - Gulf of Mexico Fishery Management Council; Public Meetings; Correction

Science.gov (United States)

2012-07-11

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory... Ludwig Lane, Grand Isle, LA 70358; telephone: (985) 787-2163 Council address: Gulf of Mexico Fishery...

The growth of coral reef science in the Gulf: a historical perspective.

Science.gov (United States)

Burt, John A

2013-07-30

Coral reef science has grown exponentially in recent decades in the Gulf. Analysis of literature from 1950 to 2012 identified 270 publications on coral reefs in the Gulf, half of which were published in just the past decade. This paper summarizes the growth and evolution of coral reef science in the Gulf by examining when, where and how research has been conducted on Gulf reefs, who conducted that research, and what themes and taxa have dominated scientific interest. The results demonstrate that there has been significant growth in our understanding of the valuable coral reefs of the Gulf, but also highlight the fact that we are documenting an increasingly degraded ecosystem. Reef scientists must make a concerted effort to improve dialogue with regional reef management and decision-makers if we are to stem the tide of decline in coral reefs in the Gulf. Copyright © 2013 Elsevier Ltd. All rights reserved.

Use of a Florida Gulf Coast Barrier Island by Spring Trans-Gulf Migrants and the Projected Effects of Sea Level Rise on Habitat Availability.

Directory of Open Access Journals (Sweden)

Lori A Lester

Full Text Available Barrier islands on the north coast of the Gulf of Mexico are an internationally important coastal resource. Each spring hundreds of thousands of Nearctic-Neotropical songbirds crossing the Gulf of Mexico during spring migration use these islands because they provide the first landfall for individuals following a trans-Gulf migratory route. The effects of climate change, particularly sea level rise, may negatively impact habitat availability for migrants on barrier islands. Our objectives were (1 to confirm the use of St. George Island, Florida by trans-Gulf migrants and (2 to determine whether forested stopover habitat will be available for migrants on St. George Island following sea level rise. We used avian transect data, geographic information systems, remote sensing, and simulation modelling to investigate the potential effects of three different sea level rise scenarios (0.28 m, 0.82 m, and 2 m on habitat availability for trans-Gulf migrants. We found considerable use of the island by spring trans-Gulf migrants. Migrants were most abundant in areas with low elevation, high canopy height, and high coverage of forests and scrub/shrub. A substantial percentage of forest (44% will be lost by 2100 assuming moderate sea level rise (0.82 m. Thus, as sea level rise progresses, less forests will be available for migrants during stopover. Many migratory bird species' populations are declining, and degradation of barrier island stopover habitat may further increase the cost of migration for many individuals. To preserve this coastal resource, conservation and wise management of migratory stopover areas, especially near ecological barriers like the Gulf of Mexico, will be essential as sea levels rise.

Use of a Florida Gulf Coast Barrier Island by Spring Trans-Gulf Migrants and the Projected Effects of Sea Level Rise on Habitat Availability.

Science.gov (United States)

Lester, Lori A; Gutierrez Ramirez, Mariamar; Kneidel, Alan H; Heckscher, Christopher M

2016-01-01

Barrier islands on the north coast of the Gulf of Mexico are an internationally important coastal resource. Each spring hundreds of thousands of Nearctic-Neotropical songbirds crossing the Gulf of Mexico during spring migration use these islands because they provide the first landfall for individuals following a trans-Gulf migratory route. The effects of climate change, particularly sea level rise, may negatively impact habitat availability for migrants on barrier islands. Our objectives were (1) to confirm the use of St. George Island, Florida by trans-Gulf migrants and (2) to determine whether forested stopover habitat will be available for migrants on St. George Island following sea level rise. We used avian transect data, geographic information systems, remote sensing, and simulation modelling to investigate the potential effects of three different sea level rise scenarios (0.28 m, 0.82 m, and 2 m) on habitat availability for trans-Gulf migrants. We found considerable use of the island by spring trans-Gulf migrants. Migrants were most abundant in areas with low elevation, high canopy height, and high coverage of forests and scrub/shrub. A substantial percentage of forest (44%) will be lost by 2100 assuming moderate sea level rise (0.82 m). Thus, as sea level rise progresses, less forests will be available for migrants during stopover. Many migratory bird species' populations are declining, and degradation of barrier island stopover habitat may further increase the cost of migration for many individuals. To preserve this coastal resource, conservation and wise management of migratory stopover areas, especially near ecological barriers like the Gulf of Mexico, will be essential as sea levels rise.

Military and Non Military Threats to the Gulf Cooperation Countries

National Research Council Canada - National Science Library

Al-Khulaifi, Hamad H

2008-01-01

The international strategic importance of Gulf oil resources, the intense political and economic attention to the Gulf Countries affairs by nations beyond the region, necessitate looking at the impact...

Storm-induced transfer of particulate trace metals to the deep-sea in the Gulf of Lion (NW Mediterranean Sea).

Science.gov (United States)

Dumas, C; Aubert, D; Durrieu de Madron, X; Ludwig, W; Heussner, S; Delsaut, N; Menniti, C; Sotin, C; Buscail, R

2014-10-01

In order to calculate budgets of particulate matter and sediment-bound contaminants leaving the continental shelf of the Gulf of Lion (GoL), settling particles were collected in March 2011 during a major storm, using sediment traps. The collecting devices were deployed in the Cap de Creus submarine canyon, which represents the main export route. Particulate matter samples were analyzed to obtain mass fluxes and contents in organic carbon, Al, Cr, Co, Ni, Cu, Zn, Cd, Pb and La, Nd and Sm. The natural or anthropogenic origin of trace metals was assessed using enrichment factors (EFs). Results are that Zn, Cu and Pb appeared to be of anthropogenic origin, whereas Ni, Co and Cr appeared to be strictly natural. The anthropogenic contribution of all elements (except Cd) was refined by acid-leaching (HCl 1 N) techniques, confirming that Zn, Cu and Pb are the elements that are the most enriched. However, although those elements are highly labile (59-77%), they do not reflect severe enrichment (EFs rare earth elements ratios and concentrations of acid-leaching residual trace metals. Our results hence indicate that even in this western extremity of the GoL, storm events mainly export Rhone-derived particles via the Cap de Creus submarine canyons to the deep-sea environments. This export of material is significant as it represents about a third of the annual PTM input from the Rhone River.

Mercury in contaminated coastal environments; a case study: the Gulf of Trieste.

Science.gov (United States)

Horvat, M; Covelli, S; Faganeli, J; Logar, M; Mandić, V; Rajar, R; Sirca, A; Zagar, D

1999-09-30

Some general facts, uncertainties and gaps in current knowledge of Hg cycling in coastal and oceanic environments are given. As a case study the Gulf of Trieste is chosen. The Gulf is subject to substantial Hg pollution, originating from the Soca river, that drains the cinnabar deposits of the world's second largest Hg mining area, Idrija, Slovenia. The Gulf belongs to one of the most polluted areas in the Mediterranean. Apart from Hg problems, the Gulf is also a subject to industrial and sewage pollution. Due to deteriorating water quality in the Gulf there is a great concern that Hg can be remobilized from sediments to the water column as well as enhance methylation rates which may consequently increase already elevated Hg levels in aquatic organisms. The paper presents data from a recent study which aims to assess the extent of contamination of the Gulf of Trieste after the closure of the Hg mine. Mercury and methylmercury were measured in various environmental compartments (estuarine and marine waters, sediments, and organisms) during the period 1995-1997. Data obtained show that even 10 years after closure of the Hg mine, Hg concentrations in river sediments and water are still very high and did not show the expected decrease of Hg in the Gulf of Trieste. A provisional annual mercury mass balance was established for the Gulf of Trieste showing that the major source of inorganic mercury is still the River Soca (Isonzo) while the major source of methylmercury is the bottom sediment of the Gulf.

Tectonique et volcanisme tardi-Pan Africains (580-560 M.a.) dans l'Anti-Atlas Central (Maroc): interprétation géodynamique à l'échelle du NW de l'Afrique

Science.gov (United States)

Azizi Samir, M. R.; Ferrandini, J.; Tane, J. L.

The structural analysis of the Precambrian III (Infracambrian) volcanic formations that outcrop in the Bou Azzer-El Graara anticlinal has revealed two complementary phases: i) a NW-SE distension, ii) N100° to N120°E left-lateral strike-slip to normal faults, parallel to the Pan-African suture. Microtectonic and stratigraphic criteria establish that the tectonic activity is syn-volcanic, while the determination of the principal stress directions prove the genetic relationship between the two phases. Evidences of NW-SE oriented distension in the PIII volcanics of other areas of south Morocco show the regional extension of the tectonic setting. Our model suggests a left-lateral strike-slip between two cratonic blocks that collided during a previous B2 phase (around 600 M.a.). During this strike-slip movement, the principal stress axis sl tilted from horizontal to 50°N while the vertical plane s1 - s2 slightly rotated from N30° to N40°E. The PIII volcanic production was triggered by the extensive wrenching-distending movement and accompanied the reactivation of WNW-ESE faults of the Panafrican basement. Coeval extension along NE-SW faults is marked by the emplacement of numerous andesitic porphyritic dykes along this direction. This rift evolution is part of the global framework that includes two Proto-Atlantic or Iapetus, (2) to the east, in the Trans-Saharian range, the E-W late-Panafrican compression with N-S left-lateral strike-slip. The extension leads to thinning of the crust, existence of a gulf during the Adoudounien transgression and emplacement of alkali magmatism at the base of these transgressive series.

Physical processes in the Gulf of Kachchh: A review

Digital Repository Service at National Institute of Oceanography (India)

Vethamony, P.; Babu, M.T.

A brief review of various physical processes acting in the Gulf of Kachchh (GoK), which have prominent roles in Gulf dynamics, is presented in this article. The eddies present in the GoK confirm that they are permanent features of the Go...

Carbon emissions from the Persian Gulf countries

International Nuclear Information System (INIS)

Al-Shatti, A.M.

1991-01-01

The wealth of indigenous oil resources has largely determined the economic and energy use patterns in the member countries of the Gulf Cooperation Council (GCC). Sizable profits accrued from the inflation of world oil prices spurred tremendous economic growth across the Gulf during the 1970s. The GCC nations channeled this oil wealth into the rapid development of infrastructure and the creation of super-welfare states. Today, these highly affluent societies enjoy benefits ranging from free medical care, schooling and housing to subsidized electricity and gasoline supplies. The combination of great personal prosperity, abundant petroleum resources and highly subsidized energy prices has led to excessive energy use in the Gulf nations. These countries consume among the highest amounts of energy per capita in the world. Correspondingly, these nations generate among the highest levels of energy-related carbon per capita

76 FR 37064 - Gulf of Mexico Fishery Management Council (Council); Public Meeting

Science.gov (United States)

2011-06-24

... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a public meeting via webinar... meeting will be held via webinar. Council address: Gulf of Mexico Fishery Management Council, 2203 North... Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY...

CRED REA Algal Assessments at Maro Reef, NW Hawaiian Islands in 2006

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Twelve quadrats were sampled along 2 consecutively-placed, 25m transect lines, as part of Rapid Ecological Assessments, conducted at 9 sites at Maro Reef in the NW...

75 FR 8789 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2010-02-25

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... theater of operations during the Gulf War. The Committee will review VA program activities related to Gulf...

Observing environmental change in of the Gulf of Maine: ICUC smartphone app

Science.gov (United States)

Want to help collect data on environmental change in the Gulf of Maine with your smartphone? The Gulf of Maine Council’s EcoSystem Indicator Partnership (ESIP) is growing the community of citizen scientists in the Gulf of Maine region through its new smartphone app: ICUC (...

Offshore-onshore linkages in the larval life history of sole in the Gulf of Lions (NW-Mediterranean)

Science.gov (United States)

Morat, Fabien; Letourneur, Yves; Blamart, Dominique; Pécheyran, Christophe; Darnaude, Audrey M.; Harmelin-Vivien, Mireille

2014-08-01

Understanding individual dispersion from offshore natal areas to coastal nurseries during pelagic larval life is especially important for the sustainable management of exploited marine fish species. For several years, the hatching period, the larval life duration, the average growth rate and the otolith chemical composition (δ13C, δ18O, Sr:Ca and Ba:Ca) during the larval life were studied for young of the year (YOY) of sole collected in three main nurseries of the Gulf of Lions (GoL) (Thau, Mauguio and Berre). We investigated the spatial variation in the origin of the sole larvae which colonised the nurseries around the GoL, and whether temporal differences in environmental conditions during this life stage affected growth and larval life duration. The hatching period ranges from October to March, depending on year and site. Average ages at metamorphosis varied between 43 and 50 days, with the lowest and highest values consistently found for Mauguio and Berre, respectively. Otolith growth rates ranged between 2.7 and 3.2 μm d-1, with the lowest values in Thau and Mauguio and the highest in Berre. Otolith chemical composition during the larval life also varied, suggesting contrasted larval environmental histories in YOY among nurseries. In fishes from Berre and Mauguio, larval life was more influenced by the Rhône River, showing consistently higher larval Ba:Ca ratios (10/23 μmol mol-1) and lower δ13C (-6.5/-6.1‰) and δ18O values (-1.6/0.1‰) than for Thau (with Ba:Ca ratios < 8 μmol mol-1, δ13C ˜-2.3‰ and δ18O ˜1.5‰). Differences in larval otolith composition were observed for 2004, with higher Ba:Ca and lower δ13C and δ18O values than in the two other years. These differences were explained by changes in composition and chemical signatures of water masses after an exceptional flooding event of the Rhône River in late 2003.

Report A, chemical oceanographic data from the Persian Gulf and Gulf of Oman from 17 April 1972 to 17 March 1978 (NODC Accession 7900091)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile and chemical data were collected using bottle casts from NOAA Ship DELAWARE and other platforms in the Persian Gulf and Gulf of Oman from 17...

Increased psychological distress among Danish Gulf War veterans--without evidence for a neurotoxic background. The Danish Gulf War Study

DEFF Research Database (Denmark)

Ishøy, Torben; Knop, Joachim; Suadicani, Poul

2004-01-01

INTRODUCTION: Compared with controls, up to six years after their return, Danish Gulf War veterans have a significantly higher prevalence of self-reported neuropsychological symptoms, potentially as a result of neurotoxic exposure during deployment. We tested the hypotheses that: 1) GW veterans...... of neuropsychological symptoms, and stratified according to SCL-90-R score, no trends were found suggesting reduced motor function with increasing symptoms. Of nine dimensions constructed on the basis of the SCL-90-R items, six were significantly associated with being a Gulf War veteran. Statistically, the strongest...... would perform less well than controls using a computerized neuromotor test battery; and that 2) GW veterans have a psychological profile different from that of controls. MATERIAL AND METHODS: A cross-sectional study of 686 subjects who had been deployed in the Persian Gulf within the period August 2...

Good Order at Sea in the Gulf of Guinea

DEFF Research Database (Denmark)

Nordby, Johannes Riber; Lindskov Jacobsen, Katja

In this chapter, we first outline the maritime security situation in the Gulf of Guinea region at present. It is examined in the context of Good Order at Sea. Second, we describe the most recent maritime security initiative launched during the Yaoundé Summit in 2013. During the summit, West...... and Central African states decided to establish six maritime zones along their coastline in order to improve the maritime security in the Gulf of Guinea. A process heavily supported by UN’s International Maritime Organisation (IMO). Finally, the chapter suggests that maritime security issues in the Gulf...

Gulf of Mexico Regional Collaborative Final Report

Energy Technology Data Exchange (ETDEWEB)

Judd, Kathleen S. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Judd, Chaeli [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Engel-Cox, Jill A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Gulbransen, Thomas [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Anderson, Michael G. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Woodruff, Dana L. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Thom, Ronald M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Guzy, Michael [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Hardin, Danny [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Estes, Maury [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

2007-12-01

This report presents the results of the Gulf of Mexico Regional Collaborative (GoMRC), a year-long project funded by NASA. The GoMRC project was organized around end user outreach activities, a science applications team, and a team for information technology (IT) development. Key outcomes are summarized below for each of these areas. End User Outreach; Successfully engaged federal and state end users in project planning and feedback; With end user input, defined needs and system functional requirements; Conducted demonstration to End User Advisory Committee on July 9, 2007 and presented at Gulf of Mexico Alliance (GOMA) meeting of Habitat Identification committee; Conducted significant engagement of other end user groups, such as the National Estuary Programs (NEP), in the Fall of 2007; Established partnership with SERVIR and Harmful Algal Blooms Observing System (HABSOS) programs and initiated plan to extend HABs monitoring and prediction capabilities to the southern Gulf; Established a science and technology working group with Mexican institutions centered in the State of Veracruz. Key team members include the Federal Commission for the Protection Against Sanitary Risks (COFEPRIS), the Ecological Institute (INECOL) a unit of the National Council for science and technology (CONACYT), the Veracruz Aquarium (NOAA’s first international Coastal Ecology Learning Center) and the State of Veracruz. The Mexican Navy (critical to coastal studies in the Southern Gulf) and other national and regional entities have also been engaged; and Training on use of SERVIR portal planned for Fall 2007 in Veracruz, Mexico Science Applications; Worked with regional scientists to produce conceptual models of submerged aquatic vegetation (SAV) ecosystems; Built a logical framework and tool for ontological modeling of SAV and HABs; Created online guidance for SAV restoration planning; Created model runs which link potential future land use trends, runoff and SAV viability; Analyzed SAV

76 FR 60807 - Gulf of Mexico Fishery Management Council; Public Meeting; Correction

Science.gov (United States)

2011-09-30

... to a Council meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting... Thursday, October 13, 2011. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607. Council address: Gulf of Mexico Fishery...

Central Gulf of Mexico lease sale draws weak industry response

International Nuclear Information System (INIS)

Koen, A.D.

1992-01-01

This paper reports that interest in oil and gas leases in the Gulf of Mexico continued spiraling downward at the latest Minerals Management Service offshore sale. Companies participating in Outer Continental Shelf Sale 139 last week in New Orleans offered 196 bids for 151 blocks in the central Gulf of Mexico. MMS offered 5,213 blocks for lease. The number of tracts receiving bids was the fewest at a central gulf lease sale since 114 tracts garnered high bids totaling $146.4 million at Sale 104 in April 1986. Apparent high bids in Sale 139 totaled $56,195,552, and all bids offered totaled just $65,300,864. Both bidding totals were the lowest in a Gulf of Mexico lease sale since MMS began area-wide gulf leasing at Sale 72 in May 1983. Only 64 of 93 qualified companies participated in Sale 139. Fifty-five companies offered apparent winning bids. By comparison, 123 companies at central gulf lease Sale 131 in March 1991 offered 637 bids totaling $320.5 million for 464 tracts. Apparent high bids last spring totaled $259.9 million. At central gulf lease Sale 123 in March 1990, high bids totaled $427.4 million for 538 tracts. In that sale, BP Exploration Inc. led all bidders, exposing $78 million in 79 high bids, including 60 for deepwater tracts. Since then, interest in deepwater tracts has waned in part because of sagging oil and gas prices as U.S. operators sought bigger prospects outside the U.S. Ironically, Sale 139 was dominated by the U.S. subsidiary of an Italian holding company

A new structural interpretation relating NW Libya to the Hun Graben ...

Indian Academy of Sciences (India)

1.03) stereonet software, produced by Pangaea Scientific Ltd. The aim of this ... influence of basement fabrics of different ages on the subsequent structural development of NW Libya. 1. Introduction ...... formation with application to Britain; Oliver Boyd,. Edinburgh .... Price N J 1966 Fault and Joint Development in Brittle and.

Future role of Gulf oil in world energy demand

International Nuclear Information System (INIS)

Eltony, M.N.

1998-01-01

The view that there will be a growing dependence on oil from the Gulf countries is shared by a great number of oil market analysts. This view is based on the fact that Gulf countries dominate the global oil reserves. Energy analyst argue that as the world demand for oil continues to grow driven largely by the growth in developing countries' consumption coupled with constrained non-OPEC supply, the end result will be that the call on Gulf oil will grow substantially. In summary, this paper has challenged the view of growing dependence on oil from the Gulf using available information in conjunction with reasonable and fairly plausible arguments. The aim was to point out to the GCC member counties the danger of relying on these views in shaping their economic policies and in setting their oil market strategies. They may run the ultimate risk of being left with huge oil reserves that no one wants. (orig.)

Gulf Canada Resources Limited 1998 annual report

International Nuclear Information System (INIS)

1999-01-01

A review of operations in 1998 and financial information from Gulf Canada Resources Limited is provided to keep shareholders abreast of company performance. Gulf Canada Resources Limited explores for, develops, produces and markets conventional and synthetic crude oil, natural gas and natural gas liquids. In 1998, the company's main operating centres were in western Canada (where it owns a nine per cent interest in the Syncrude Joint Venture), Indonesia, the North Sea and Australia. The report summarizes the company's energy resource activities, presents a detailed review of operations, and provides consolidated financial statements, and common share information. Although Gulf Canada Resources sold $ 1.2 billion worth of non-producing assets during the year, year end proved reserves of 838 million barrels of oil equivalent were less than ten per cent lower than a year earlier, reflecting reserve additions of 100 million barrels of oil equivalent. tabs., figs

Energy benchmarking for shopping centers in Gulf Coast region

International Nuclear Information System (INIS)

Juaidi, Adel; AlFaris, Fadi; Montoya, Francisco G.; Manzano-Agugliaro, Francisco

2016-01-01

Building sector consumes a significant amount of energy worldwide (up to 40% of the total global energy); moreover, by the year 2030 the consumption is expected to increase by 50%. One of the reasons is that the performance of buildings and its components degrade over the years. In recent years, energy benchmarking for government office buildings, large scale public buildings and large commercial buildings is one of the key energy saving projects for promoting the development of building energy efficiency and sustainable energy savings in Gulf Cooperation Council (GCC) countries. Benchmarking would increase the purchase of energy efficient equipment, reducing energy bills, CO_2 emissions and conventional air pollution. This paper focuses on energy benchmarking for shopping centers in Gulf Coast Region. In addition, this paper will analyze a sample of shopping centers data in Gulf Coast Region (Dubai, Ajman, Sharjah, Oman and Bahrain). It aims to develop a benchmark for these shopping centers by highlighting the status of energy consumption performance. This research will support the sustainability movement in Gulf area through classifying the shopping centers into: Poor, Usual and Best Practices in terms of energy efficiency. According to the benchmarking analysis in this paper, the shopping centers best energy management practices in the Gulf Coast Region are the buildings that consume less than 810 kW h/m"2/yr, whereas the poor building practices are the centers that consume greater than 1439 kW h/m"2/yr. The conclusions of this work can be used as a reference for shopping centres benchmarking with similar climate. - Highlights: •The energy consumption data of shopping centers in Gulf Coast Region were gathered. •A benchmarking of energy consumption for the public areas for the shopping centers in the Gulf Coast Region was developed. •The shopping centers have the usual practice in the region between 810 kW h/m"2/yr and 1439 kW h/m"2/yr.

78 FR 12294 - Gulf of Mexico Fishery Management Council (Council); Public Meetings

Science.gov (United States)

2013-02-22

... meetings. SUMMARY: The Gulf of Mexico and South Atlantic Fishery Management Councils will convene a Science.... to 4 p.m. EST on Tuesday, March 12, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico.... Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL...

Seasonal phytoplankton blooms in the Gulf of Aden revealed by remote sensing

KAUST Repository

Gittings, John

2016-11-25

The Gulf of Aden, situated in the northwest Arabian Sea and linked to the Red Sea, is a relatively unexplored ecosystem. Understanding of large-scale biological dynamics is limited by the lack of adequate datasets. In this study, we analyse 15 years of remotely-sensed chlorophyll-a data (Chl-a, an index of phytoplankton biomass) acquired from the Ocean Colour Climate Change Initiative (OC-CCI) of the European Space Agency (ESA). The improved spatial coverage of OC-CCI data in the Gulf of Aden allows, for the first time, an investigation into the full seasonal succession of phytoplankton biomass. Analysis of indices of phytoplankton phenology (bloom timing) reveals distinct phytoplankton growth periods in different parts of the gulf: a large peak during August (mid-summer) in the western part of the gulf, and a smaller peak during November (mid-autumn) in the lower central gulf and along the southern coastline. The summer bloom develops rapidly at the beginning of July, and its peak is approximately three times higher than that of the autumnal bloom. Remotely-sensed sea-surface temperature (SST), wind-stress curl, vertical nutrient profiles and geostrophic currents inferred from the sea-level anomaly, were analysed to examine the underlying physical mechanisms that control phytoplankton growth. During summer, the prevailing southwesterlies cause upwelling along the northern coastline of the gulf (Yemen), leading to an increase in nutrient availability and enhancing phytoplankton growth along the coastline and in the western part of the gulf. In contrast, in the central region of the gulf, lowest concentrations of Chl-a are observed during summer, due to strong downwelling caused by a mesoscale anticyclonic eddy. During autumn, the prevailing northeasterlies enable upwelling along the southern coastline (Somalia) causing local nutrient enrichment in the euphotic zone, leading to higher levels of phytoplankton biomass along the coastline and in the lower central gulf

Biomarker Discovery in Gulf War Veterans: Development of a War Illness Diagnostic Panel

Science.gov (United States)

2016-12-01

Award Number: W81XWH-12-1-0382 TITLE: Biomarker Discovery in Gulf War Veterans: Development of a War Illness Diagnostic Panel PRINCIPAL...SUBTITLE Biomarker Discovery in Gulf War Veterans: Development of a War Illness Diagnostic Panel 5a. CONTRACT NUMBER W81XWH-12-1-0382 5b. GRANT...of the 1990-1991 Gulf War are affected by Gulf War illness (GWI), the chronic condition currently defined only by veterans’ self-reported symptoms

Effect of Diet on Gulf War Illness: A Pilot Study

Science.gov (United States)

2017-10-01

Award Number: W81XWH-15-1-0636 TITLE: Effect of Diet on Gulf War Illness: A Pilot Study PRINCIPAL INVESTIGATOR: Ashok Tuteja, M.D. M.P.H...CONTRACT NUMBER Effect of Diet on Gulf War Illness 5b. GRANT NUMBER W81XWH-15-1-0636 5c. PROGRAM ELEMENT NUMBER 6 . AUTHOR(S) 5d. PROJECT NUMBER...headache) in Veterans with Gulf War Illness. We will also determine if the change in gut flora is a mechanism for improvement in symptoms of IBS and GW

Environmental impacts of tourism in the Gulf and the Red Sea.

Science.gov (United States)

Gladstone, William; Curley, Belinda; Shokri, Mohammad Reza

2013-07-30

The Gulf and Red Sea possess diverse coastal and marine environments that support rapidly expanding mass tourism. Despite the associated environmental risks, there is no analysis of the tourism-related literature or recent analysis of impacts. Environmental issues reported in 101 publications (25 from the Gulf, 76 from the Red Sea) include 61 purported impacts (27 from the Gulf, 45 from the Red Sea). Gulf literature includes quantitative studies (68% publications) and reviews (32%), and addresses mostly land reclamation and artificial habitats. Most Gulf studies come from Iran and UAE (64%). Red Sea literature includes quantitative studies (81%) and reviews (11%), with most studies occurring in Egypt (70%). The most published topics relate to coral breakage and its management. A full account of tourism's environmental impacts is constrained by limited tourism data, confounding of impacts with other coastal developments, lack of baseline information, shifting baselines, and fragmentation of research across disciplines. Copyright © 2012 Elsevier Ltd. All rights reserved.

Gulf War syndrome: an emerging threat or a piece of history?

Science.gov (United States)

Greenberg, N; Wessely, S

2008-01-01

‘Gulf War syndrome’ is a phrase coined after the 1991 Gulf War to group together disparate, unexplained health symptoms in Gulf veterans. This paper examines the many hypotheses that have been put forward about the origins of the concept and gives an overview of the studies that have attempted to explain the lasting health effects associated with Gulf service. Our review finds that although in the UK there has not yet been evidence of a new Gulf War syndrome as a result of the current conflicts in Iraq and Afghanistan, there is a rise in post-conflict psychiatric disorders now being reported in the USA. We postulate that after conflicts military personnel will always face some form of post-conflict syndrome and the nature of the threats experienced is likely to dictate the form the syndrome might take. We also postulate that media reporting is likely to have influenced and to continue unhelpfully to influence the health of service personnel. PMID:22460210

High-grade metamorphic rocks of the Mellid area, Galicia, NW Spain

NARCIS (Netherlands)

Hubregtse, J.J.M.W.

1973-01-01

This study concerns the petrology of the Mellid area, the SE portion of the outer zone of the Ordenes Complex which is one of the upthrusted Precambrian complexes in the axial zone of the Hercynian orogen in Galicia, NW Spain. An eugeosynclinal rock sequence is found containing units with different

A recent perspective of the Circulation in the Gulf of Mexico

Science.gov (United States)

Candela, J.; Ochoa-de-La-Torre, J. L.; Sheinbaum, J.; Perez-Brunius, P.; Pallas-Sanz, E.; Kolodziejczyk, N.

2013-05-01

The flow through the Gulf of Mexico is an integral part of the North Atlantic Ocean Subtropical Gyre Circulation, known to be forced by the wind over the North Atlantic and by an equivalent contribution from the inter-hemispheric Meridional Overturning Cell. To the North Atlantic Circulation, the Gulf represents an important energy and vorticity sink through the particular behavior of the Loop Current within. Comprehending the structure and dynamics of the Loop Current System (which includes the Yucatan Current (YC), Loop Current (LC), the shedding of anticyclonic Loop Current Eddies (LCE) and peripheral cyclonic gyres) is fundamental for understanding the circulation in the entire Gulf. Within the Gulf, the eastern Loop Current and the western Campeche Bay (CB) regions are characterized by persistent eddy structures, with less structured eddy fields in between. Of these later ones, the northwestern Gulf is a geostrophic turbulence area, constantly perturbed by LCE, which represents, at the same time, an important dissipation and circulation forcing region for the Western Gulf. Important processes recently investigated that will be discussed: 1) The generation and maintenance of the Geostrophic Turbulence field in the north western Gulf. 2) The circulation in deep water induced by the surface geostrophic turbulence field. 3) The generation of intensive jets at depth by interaction of +/- gyres. 4) The generation of coastal trap waves by the interaction of LCEs with the western shelf. 5) The generation of deep topographic Roosby waves by topographic interactions of the LCEs with topography. 5) The characteristics of the Bay of Campeche Circulation, The Campeche Gyre and its interaction with LCEs. 6) The Gulf's response to the passage of hurricanes. 7) The trapping of inertial waves by the LCEs and the related enhanced mixing.

Re-Os dating of mineralization in Siah Kamar porphyry Mo deposit (NW Iran) and investigating on its temporal relationship with porphyry Cu-Mo deposits in the southern Lesser Caucasus, NW and central Iran

Science.gov (United States)

Simmonds, Vartan; Moazzen, Mohssen; Selby, David

2017-04-01

The Neo-Tethyan basin closure in Iran is characterized by the Urumieh-Dokhtar magmatic arc (UDMA), formed by north-eastward subduction of the Neo-Tethyan oceanic crust during the Alpine orogeny. This belt also coincides with the porphyry copper metallogenic belt of Iran, which hosts many porphyry Cu-Mo deposits (PCDs) and prospects, such as Sungun (NW Iran) and Sarcheshmeh (central Iran). The Siah Kamar porphyry Mo deposit (PMD) is the first discovered porphyry molybdenum deposit on this belt, which is located 10 km west of Mianeh (NW Iran), with 39.2 Mt proved reserves @ 539 ppm Mo and 66.4 Mt probable reserves @ 266 ppm Mo. The host porphyry stock has quartz-monzonitic composition, which intruded the volcanic and pyroclastic rocks of Eocene age. Re content of molybdenites is about 10.44-41.05 ppm which, considering the several tens of ppm concentration, is comparable with porphyry Mo deposits (e.g., Climax in USA), being clearly distinguished from porphyry Cu-Mo deposits. Re-Os dating of molybdenites from this PMD has given model ages between 28.1±0.15 to 29.06±0.2 Ma, and isochron age of 28.0±2.1 Ma, corresponding to the middle Oligocene (upper part of Rupelian). Comparing the ages determined for Siah Kamar PMD with porphyry Cu-Mo mineralizations in the Lesser Caucasus indicates that it is younger than most of the dated PCDs and prospects there, especially those of upper Eocene, while it is a little older than Paragachay and first-stage Kadjaran PCDs [1]. In a regional scale of NW Iran, it shows a narrow overlap with vein-type Cu-Mo-Au mineralizations in Qarachilar (Qaradagh batholith) and is nearly coeval with Haftcheshmeh PCD, indicating that mineralization in the Siah Kamar PMD corresponds to the second porphyry mineralization epoch in NW Iran, proposed by [2]. Meanwhile, mineralization in Siah Kamar is older than all the porphyry Cu-Mo mineralizations along the central and SE parts of the UDMA, except the Bondar Hanza PCD in Kerman zone, which nearly

Characterization of sea floor in Gulf of Mexico

Energy Technology Data Exchange (ETDEWEB)

McGregor, B.A.; Kenyon, N.H.; Schlee, J.S.; Mattick, R.e.; Twichell, D.C.

1986-05-01

In 1985, the US Geological Survey (USGS) conducted a mapping program in the Gulf of Mexico. Using the GLORIA (Geologic Long-Range Inclined Asdic) side-scan sonar system of the Institute of Oceanographic Sciences, USGS mapped approximately 90,000 nmi/sup 2/ of sea floor in the central and western Gulf of Mexico, seaward of the shelf edge. The Sigsbee Escarpment, the seaward edge of a salt front that extends from the western gulf to just west of the Mississippi Canyon, is marked by piles of debris along its base, and is breached by several submarine channels. One such meandering channel can be traced from the shelf edge, through the maze of diapirs on the slope, and out across the Sigsbee Abyssal Plain. This continuous transport pathway indicates the interaction of salt tectonics on sediment pathways and distribution. Numerous bed forms seaward of the Sigsbee Escarpment suggest that strong bottom currents are present. The northern gulf has three major submarine fans, each with different surface morphologies. The Rio Grande Fan has a braided channel system. The Mississippi Fan has a main channel that can be traced for approximately 100 km across the midfan, but most of the surface of the upper and midfan as well as the channel are buried by submarine slides or debris flows. Desoto Canyon Fan also has a continuous channel that has been filled or overrun in places by massive debris flows. Based on the sonographs, mass wasting appears to be an important process in distributing sediments in the deep water of the central gulf.

Use of Cu/Zn-superoxide dismutase tool for biomonitoring marine environment pollution in the Persian Gulf and the Gulf of Oman.

Science.gov (United States)

Zeinali, Farrokhzad; Homaei, Ahmad; Kamrani, Ehsan; Patel, Seema

2018-04-30

Superoxide dismutase (SOD) is the pivotal antioxidant enzyme that defends organisms against the oxidative stresses of superoxide radicals. In this experimental study, purification of SOD from the leaves of Avicennia marina (grey mangrove or white mangrove) from the family Acanthaceae, located in Sirik mangrove forest on the shore of the Gulf of Oman was performed, for the intended characterization of SOD. The Sirik AmSOD (A. marina SOD) expressed optimum activity in the pH range of 6-9 with the maximum activity at pH 8. The optimal temperature for Sirik AmSOD activity was 70°C. Comparison of the pH and temperature optima in two regions (the Persian Gulf and the Gulf of Oman) showed significant differences with P<0.05. The SOD from the Persian Gulf was more resistant against the environmental stressors, because of the biochemical adaption to this environment, which is harsher. The evidence from these results suggests that AmSOD has different characteristics in each place, and mangroves undergo different adaptations and require different protections. The results of the enzymatic research can be useful for ecological management of organisms. Copyright © 2018 Elsevier Inc. All rights reserved.

GAOCMAO and its oil spill response activities in the Gulf

International Nuclear Information System (INIS)

Al-Sada, M.S.

1994-01-01

Gulf Area Oil Companies Mutual Aid Organisation (GAOCMAO), has taken active steps in cooperation with its member companies, national and regional environmental organisation (ROPME) in an attempt to protect the Gulf from various sources of pollution. Specific attention was given to oil pollution response in terms of stockpiling of adequate equipment, training of personal and coordination through the application of pre-prepared contingency plans. All these activities tell us that a lot has been done to protect the Gulf environment from pollution. GAOCMAO, after many years of successful development looks to the future with confidence and renewed vigor. It is the intention of this organisation to enhance its member companies capabilities to respond to major incidents and to work closely with the national governmental, regional and international environmental organisations throughout the world, in fields appropriate to the Gulf oil industry. (author)

Reproduction of Persian Gulf anemone fish (Amphiprion clarkii) in captive system

OpenAIRE

Javad Sahandi

2011-01-01

The present study was carried out to assess the reproduction of Persian Gulf anemone fish,Amphiprion clarkii (Bennett, 1830), in captive conditions with artificial features. Persian Gulf, havinggood relation with Indian Ocean, is one of the important niches of fishes and the specific position ofthis Gulf makes its fishes popular. The yellow tail clown fish which originates to this gulf has the bestsurvival rate and health than the other areas. Live food is the most important factor in product...

Africa and Arab Gulf states : divergent development paths and prospects for convergence

OpenAIRE

Fofack, Hippolyte

2009-01-01

In spite of the similarities between Sub-Saharan Africa and the Arab Gulf region (Gulf Cooperation Council states), development policies implemented in these two regions of the world have produced markedly different and even divergent outcomes. While Gulf Cooperation Council states have drawn on hydrocarbon revenues to dramatically transform their economic landscape, Sub-Saharan African co...

Gulf war illness--better, worse, or just the same? A cohort study.

Science.gov (United States)

Hotopf, Matthew; David, Anthony S; Hull, Lisa; Nikalaou, Vasilis; Unwin, Catherine; Wessely, Simon

2003-12-13

Firstly, to describe changes in the health of Gulf war veterans studied in a previous occupational cohort study and to compare outcome with comparable non-deployed military personnel. Secondly, to determine whether differences in prevalence between Gulf veterans and controls at follow up can be explained by greater persistence or greater incidence of disorders. Occupational cohort study in the form of a postal survey. Military personnel who served in the 1991 Persian Gulf war; personnel who served on peacekeeping duties to Bosnia; military personnel who were deployed elsewhere ("Era" controls). All participants had responded to a previous survey. United Kingdom. Self reported fatigue measured on the Chalder fatigue scale; psychological distress measured on the general health questionnaire, physical functioning and health perception on the SF-36; and a count of physical symptoms. Gulf war veterans experienced a modest reduction in prevalence of fatigue (48.8% at stage 1, 43.4% at stage 2) and psychological distress (40.0% stage 1, 37.1% stage 2) but a slight worsening of physical functioning on the SF-36 (90.3 stage 1, 88.7 stage 2). Compared with the other cohorts Gulf veterans continued to experience poorer health on all outcomes, although physical functioning also declined in Bosnia veterans. Era controls showed both lower incidence of fatigue than Gulf veterans, and both comparison groups showed less persistence of fatigue compared with Gulf veterans. Gulf war veterans remain a group with many symptoms of ill health. The excess of illness at follow up is explained by both higher incidence and greater persistence of symptoms.

RELATIONSHIPS BETWEEN ZONAL WIND ANOMALIES IN HIGH AND LOW TROPOSPHERE AND ANNUAL FREQUENCY OF NW PACIFIC TROPICAL CYCLONES

Institute of Scientific and Technical Information of China (English)

GONG Zhen-song; HE Min

2007-01-01

Relationships between large-scale zonal wind anomalies and annual frequency of NW Pacific tropical cyclones and possible mechanisms are investigated with the methods of correlation and composition.It is indicated that when △ U200-△U850 ＞0 in the eastern tropical Pacific and △ U200- △U850 ＜0 in western tropical Pacific, the Walker cell is stronger in the Pacific tropical region and the annual frequency of NW Pacific tropical cyclone are above normal. In the years with zonal wind anomalies, the circulation of high and low troposphere and the vertical motions in the troposphere have significant characteristics. In the time scale of short-range climate prediction, zonal wind anomalies in high and low troposphere are useful as a preliminary signal of the annual frequency prediction of NW Pacific tropical cyclones.

Gulf Arab women's transition to motherhood.

Science.gov (United States)

Missal, Bernita

2013-01-01

This paper is a report of the findings of a study of Gulf Arab women's perspectives of the transition to motherhood. Transition to motherhood is a universal phenomenon in which every culture has its own expectations and varying supports for women moving through this transition. International studies have provided models or categories of maternal responses related to cultural aspects of transition to motherhood. However, no known research has focused on transition to motherhood among Gulf Arab women. In the initial cohort seventeen first time Gulf Arab mothers in the United Arab Emirates were interviewed during the following three times: before childbirth, two-four weeks after childbirth, and forty-days after childbirth. A second cohort of seventeen first time new mothers was interviewed after childbirth in Sultanate of Oman. Four patterns were identified as indicators of change as women transitioned into motherhood: 1) Women's personal transition: women changed from feeling of freedom to feeling of dependency to self-confidence. 2) Mother/baby relationships: women changed from fear, anxiety, and uncertainty to feelings of care and confidence. 3) Family influences: women experienced family support to being integrated and feeling respected by family. 4) Cultural/religious beliefs and practices: women felt they were initially observers of culture, to experiencing cultural/religious beliefs and practices. This was followed by accomplishment in childbearing and childrearing practices. As Gulf Arab new mothers made the transition to motherhood, four implications for international nursing practice emerged: 1) patient teaching to help relieve anxiety, fears, and uncertainty, 2) facilitation of mother/baby relationships, 3) family-centered care, and 4) the importance of cultural/religious beliefs and practices to new mothers.

Sea surface temperature variability in the North Western Mediterranean Sea (Gulf of Lion) during the Common Era

Science.gov (United States)

Sicre, Marie-Alexandrine; Jalali, Bassem; Martrat, Belen; Schmidt, Sabine; Bassetti, Maria-Angela; Kallel, Nejib

2016-12-01

This study investigates the multidecadal-scale variability of sea surface temperatures (SSTs) in the convection region of the Gulf of Lion (NW Mediterranean Sea) over the full past 2000 yr (Common Era) using alkenone biomarkers. Our data show colder SSTs by 1.7 °C over most of the first millennium (200-800 AD) and by 1.3 °C during the Little Ice Age (LIA; 1400-1850 AD) than the 20th century mean (17.9 °C). Although on average warmer, those of the Medieval Climate Anomaly (MCA) (1000-1200 AD) were lower by 1 °C. We found a mean SST warming of 2 °C/100 yr over the last century in close agreement with the 0.22 and 0.26 °C/decade values calculated for the western Mediterranean Sea from in situ and satellite data, respectively. Our results also reveal strongly fluctuating SSTs characterized by cold extremes followed by abrupt warming during the LIA. We suggest that the coldest decades of the LIA were likely caused by prevailing negative EA states and associated anticyclone blocking over the North Atlantic resulting in cold continental northeasterly winds to blow over Western Europe and the Mediterranean region.

On the Loop Current Penetration into the Gulf of Mexico

Science.gov (United States)

Weisberg, Robert H.; Liu, Yonggang

2017-12-01

The Gulf of Mexico Loop Current generally intrudes some distance into the Gulf of Mexico before shedding an anticyclonic eddy and retreating back to its more direct entry to exit pathway. The control of this aperiodic process remains only partially known. Here we describe the evolution of the Loop Current throughout the era of satellite altimetry, and offer a mechanistic hypothesis on Loop Current intrusion. As a complement to the known effects of Loop Current forcing on the west Florida shelf circulation, we argue that the west Florida shelf, in turn, impacts the Loop Current evolution. A Self-Organizing Map analysis shows that anomalous northward penetrations of the Loop Current into the Gulf of Mexico occur when the eastern side of Loop Current is positioned west from the southwest corner of the west Florida shelf, whereas the more direct inflow to outflow route occurs when the eastern side of the Loop Current comes in contact with the southwest corner of the west Florida shelf. In essence, we argue that the west Florida shelf anchors the Loop Current in its direct path configuration and that farther northward penetration into the Gulf of Mexico occurs when such anchoring is released. To test of this hypothesis heuristically, we estimate that the dissipation and buoyancy work due to known Loop Current forcing of the west Florida shelf circulation (when in contact with the southwest corner) may exceed the pressure work required for the Loop Current to advance against the ambient Gulf of Mexico fluid.Plain Language SummaryThe Gulf of Mexico Loop Current may intrude far into the Gulf of Mexico or take a more direct entry to exit pathway. Such Loop Current behaviors are described using remote observations by satellites, and a heuristic hypothesis on the control of Loop Current intrusion is presented. We argue that energy dissipation and buoyancy work by the west Florida shelf circulation, when the Loop Current contacts the southwest corner of the west Florida shelf

CRED REA Coral Population Parameters at Kure Atoll, NW Hawaiian Islands (NWHI), 2006

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 9 sites at Kure Atoll in the NW...

Nekton from Fishery-Independent Trawl Samples in U.S. Gulf of Mexico Estuaries: A Comparative Assessment of Gulf Estuarine Systems (CAGES), 1973-2007 (NODC Accession 0115183)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The purpose of CAGES (Comparative Assessment of Gulf Estuarine Systems) is to compile the fishery independent data from five Gulf States into a database to more...

Gulf Coast Clean Energy Application Center

Energy Technology Data Exchange (ETDEWEB)

Dillingham, Gavin [Houston Advanced Research Center, TX (United States)

2013-09-30

The Gulf Coast Clean Energy Application Center was initiated to significantly improve market and regulatory conditions for the implementation of combined heat and power technologies. The GC CEAC was responsible for the development of CHP in Texas, Louisiana and Oklahoma. Through this program we employed a variety of outreach and education techniques, developed and deployed assessment tools and conducted market assessments. These efforts resulted in the growth of the combined heat and power market in the Gulf Coast region with a realization of more efficient energy generation, reduced emissions and a more resilient infrastructure. Specific t research, we did not formally investigate any techniques with any formal research design or methodology.

76 FR 41766 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2011-07-15

... group Spanish mackerel, and Gulf group cobia. It also contains measures to remove cero, little tunny... separate cobia into Atlantic and Gulf migratory groups. Similar measures are being proposed for the...

77 FR 59185 - Gulf of Mexico Citizen Advisory Committee; Notice of Charter Renewal

Science.gov (United States)

2012-09-26

... ENVIRONMENTAL PROTECTION AGENCY [FRL-9734-9] Gulf of Mexico Citizen Advisory Committee; Notice of... with the provisions of the Federal Advisory Committee Act (FACA), 5 U.S.C. App.2, the Gulf of Mexico... the water quality and living resources of the Gulf of Mexico. FOR FURTHER INFORMATION CONTACT...

Gulf war illness—better, worse, or just the same? A cohort study

Science.gov (United States)

Hotopf, Matthew; David, Anthony S; Hull, Lisa; Nikalaou, Vasilis; Unwin, Catherine; Wessely, Simon

2003-01-01

Objectives Firstly, to describe changes in the health of Gulf war veterans studied in a previous occupational cohort study and to compare outcome with comparable non-deployed military personnel. Secondly, to determine whether differences in prevalence between Gulf veterans and controls at follow up can be explained by greater persistence or greater incidence of disorders. Design Occupational cohort study in the form of a postal survey. Participants Military personnel who served in the 1991 Persian Gulf war; personnel who served on peacekeeping duties to Bosnia; military personnel who were deployed elsewhere (“Era” controls). All participants had responded to a previous survey. Setting United Kingdom. Main outcome measures Self reported fatigue measured on the Chalder fatigue scale; psychological distress measured on the general health questionnaire, physical functioning and health perception on the SF-36; and a count of physical symptoms. Results Gulf war veterans experienced a modest reduction in prevalence of fatigue (48.8% at stage 1, 43.4% at stage 2) and psychological distress (40.0% stage 1, 37.1% stage 2) but a slight worsening of physical functioning on the SF-36 (90.3 stage 1, 88.7 stage 2). Compared with the other cohorts Gulf veterans continued to experience poorer health on all outcomes, although physical functioning also declined in Bosnia veterans. Era controls showed both lower incidence of fatigue than Gulf veterans, and both comparison groups showed less persistence of fatigue compared with Gulf veterans. Conclusions Gulf war veterans remain a group with many symptoms of ill health. The excess of illness at follow up is explained by both higher incidence and greater persistence of symptoms. PMID:14670878

Gulf War Illness and the Health of Gulf War Veterans

Science.gov (United States)

2008-11-01

after his return.432 Seventy- five Gulf War personnel were hospitalized for chicken pox during deployment.1431 Only a few cases of viral hepatitis were...and independent of circulating uranium levels. Of particular interest are findings from an ongoing study at the University of New Mexico indicating that...periods, can produce chronic neurological or behavioral effects. The New Mexico study is an important example of a particularly relevant approach

Gulf digs in to tap a major uranium orebody

International Nuclear Information System (INIS)

Jackson, D.

1977-01-01

The progress and future plans of Gulf Mineral Resources Co. for tapping and developing a major uranium orebody via two concrete-lined shafts in the Grants uranium mineral belt in New Mexico are discussed. The mineralogy of the Grants belt is discussed as it relates to the Gulf development project. Numerous pictures of the operation are included

Gulf of Mexico Sales 142 and 143: Central and western planning areas

International Nuclear Information System (INIS)

1992-11-01

This environmental impact statement (EIS) addresses two proposed Federal actions, lease Sales 142 and 143, that will offer for lease Gulf of Mexico Outer Continental Shelf (OCS) areas that may contain economically recoverable oil and gas resources. The lease sales are proposed for 1993 and include lease blocks in the Central Gulf of Mexico Planning Area (CPA) and Western Gulf of Mexico Planning Area (WPA). Up to 10,099 blocks will be available for lease under the two proposed actions; only a small percentage is expected to be actually leased. On average, 401 blocks in the Central Gulf and 264 blocks in the Western Gulf have been leased in individual Gulf of Mexico OCS lease sales since 1984. Of the blocks that will be leased as a result of the two proposed actions, only a portion will be drilled and result in subsequent production. The scoping process was used to obtain information and comments on the proposed actions and the potential environmental effects from diverse interests, including the affected States, Federal agencies, the petroleum industry, environmental and public interest groups, and concerned individuals. This volume, Volume 2, reports on impacts from Sales 142 and 143

Climate fluctuations during the Holocene in NW Iberia: High and low latitude linkages

Science.gov (United States)

Pena, L. D.; Francés, G.; Diz, P.; Esparza, M.; Grimalt, J. O.; Nombela, M. A.; Alejo, I.

2010-07-01

High resolution benthic foraminiferal stable isotopes (δ 18O, δ 13C) and molecular biomarkers in the sediments are used here to infer rapid climatic changes for the last 8200 years in the Ría de Muros (NW Iberian Margin). Benthic foraminiferal δ 18O and δ 13C potentially register migrations in the position of the hydrographic front formed between two different intermediate water masses: Eastern North Atlantic Central Water of subpolar origin (ENACW sp) and subtropical origin (ENACW st). The molecular biomarkers in the sediment show a strong coupling between continental organic matter inputs and negative δ 13C values in benthic foraminifera. The rapid centennial and millennial events registered in these records have been compared with two well known North Atlantic Holocene records from the subtropical Atlantic sea surface temperatures (SST) anomalies off Cape Blanc, NW Africa and the subpolar Atlantic (Hematite Stained Grains percentage, subpolar North Atlantic). Comparison supports a strong link between high- and low-latitude climatic perturbations at centennial-millennial time scales during the Holocene. Spectral analyses also points to a pole-to-equator propagation of the so-called 1500 yr cycles. Our results demonstrate that during the Holocene, the NW Iberian Margin has undergone a series of rapid events which are likely triggered at high latitudes in the North Atlantic and are rapidly propagated towards lower latitudes. Conceivably, the propagation of these rapid climatic changes involves a shift in atmospheric and oceanic circulatory systems.

Sediment dispersal in the macro tidal Gulf of Kachchh, India

Digital Repository Service at National Institute of Oceanography (India)

Chauhan, O.S.

of the inner gulf is marked with U and V shaped cuttings extending in the parallel clays, deposited in an earlier phase of deposition. In the outer gulf, there exists a palaeo-channel, buried under 18 m thick sediments (in the central region). Existence...

33 CFR 166.200 - Shipping safety fairways and anchorage areas, Gulf of Mexico.

Science.gov (United States)

2010-07-01

... anchorage areas, Gulf of Mexico. 166.200 Section 166.200 Navigation and Navigable Waters COAST GUARD... the erection of structures therein to provide safe approaches through oil fields in the Gulf of Mexico... for Fairway Anchorages in the Gulf of Mexico. Structures may be placed within an area designated as a...

Energy partnership: Israel and the Persian Gulf

International Nuclear Information System (INIS)

Bahgat, G.

2005-01-01

In the early 2003, American troops toppled the regime of Saddam Hussein in Iraq. Few weeks later, President Bush introduced his vision to solve the Arab-Israeli conflict in what is known as the 'road map'. These interrelated developments confirm the connection between the two Middle-Eastern sub-systems--the Persian Gulf and the Levant and provide an opportunity to achieve a comprehensive peace. Regional economic cooperation is seen as the sine qua non of a durable peace. This study examines the potential for an energy partnership between the Persian Gulf hydrocarbon producers and Israel

Energy partnership: Israel and the Persian Gulf

International Nuclear Information System (INIS)

Bahgat, G.

2005-01-01

In early 2003, American troops toppled the regime of Saddam Hussein in Iraq. Few weeks later, President Bush introduced his vision to solve the Arab-Israeli conflict in what is known as the ''road map''. These interrelated developments confirm the connection between the two Middle-Eastern sub-systems-the Persian Gulf and the Levant and provide an opportunity to achieve a comprehensive peace. Regional economic cooperation is seen as the sine qua non of a durable peace. This study examines the potential for an energy partnership between the Persian Gulf hydrocarbon producers and Israel. (author)

Gulf International Conference on Applied Mathematics 2013

CERN Document Server

Advances in Applied Mathematics

2014-01-01

This volume contains contributions from the Gulf International Conference in Applied Mathematics, held at the Gulf University for Science & Technology. The proceedings reflects the three major themes of the conference. The first of these was mathematical biology, including a keynote address by Professor Philip Maini. The second theme was computational science/numerical analysis, including a keynote address by Professor Grigorii Shishkin. The conference also addressed more general applications topics, with papers in business applications, fluid mechanics, optimization, scheduling problems, and engineering applications, as well as a keynote by Professor Ali Nayfeh.

Gulfs of Suez and Aqaba: New insights from recent satellite-marine potential field data

Science.gov (United States)

Almalki, Khalid A.; Mahmud, Syed A.

2018-01-01

Previous models and interpretations of crustal geometry and the nature of the crust under the Gulfs of Suez and Aqaba have generally been based on a local or small scale and have been limited due to a lack of data. The few studies that present larger scale crustal and uppermost mantle structure were dependent on one type of data with no consideration of other geological and/or geophysical features. Satellite-marine potential field data provide for the first time a full coverage dataset of the Gulfs of Suez and Aqaba as well as the Sinai area at the same scale which allows for a better understanding of crustal domains and geometry and the interplay between tectonic events. To that end, our forward models of magnetic and gravity data constrained by seismic data and available geological information in this area suggest that the crustal domains in the Gulf of Aqaba are more complicated than those in the Gulf of Suez. Our result supports continental rifting under most of the Gulf of Suez and a combination of transitional and continental crusts under the Gulf of Aqaba. Yet, there is no evidence of oceanic segment development in these gulfs. Regardless of oceanic or transitional crust, the models support a link between the Arabia and Sinai plates at the central Gulf of Aqaba. The data also support that Red Sea tectonism has no connection to or influence on both gulfs. The result suggests a continuation of lithological elements from land into the eastern part of the Gulf of Suez. Our synthesis and interpretations may play an important role in the reassessment of the tectonic history and extension of this important rift system.

Modelling the temporal and spatial distribution of ecological variables in Beibu Gulf

Science.gov (United States)

Pan, H.; Huang, L.; Yang, S.; Shi, D.; Pan, W.

2017-12-01

Beibu Gulf is an important semi-enclosed gulf located in northern South China Sea. It is rich in natural resources and its coastal rim is undergoing a rapid economic growth in recent years. Study on the spatial and temporal distribution of ecological variables by the influence of physical and biological processes in Beibu Gulf can provide the theoretical basis for the utilization of resources and environmental protection. Based on the MEC three-dimensional hydrodynamic model, a nutrient-phytoplankton-zooplankton-detritus (NPZD) model was applied to simulate the distribution of ecological variables in Beibu Gulf. The result shows that the ecosystem in Beibu Gulf is significantly influenced by dynamic conditions. In autumn and winter, great amount of nutrient-rich water from western Guangdong coastal area passes through Qiongzhou Strait and flows into Beibu Gulf, with about 108.3×103 t of inorganic nitrogen and 3.7×103 t of phosphate annually, leading to phytoplankton bloom. In summer, most of the nutrients come from rivers so high concentrations of nutrients and chlorophyll-a appear on estuaries. The annual net nutrient inputs from South China Sea into Beibu Gulf are 66.6×103 t for inorganic nitrogen and 4.6×103 t for phosphate. Phytoplankton plays an important role in nutrients' refreshment: a) Absorption by the process of photosynthesis is the biggest nutrient sink. b) Cellular release from dead phytoplankton is the biggest source in inorganic budget, making up for 33.4% of nitrogen consumed by photosynthesis while the process of respiration is the biggest source in phosphate budget, making up for 32.4% of phosphorus consumed by photosynthesis. c) Mineralization from detritus is also a considerable supplement of inorganic nutrients. Overall, biological process has more influence than physical process on the nutrient cycle budget in Beibu Gulf. The comparison of the result with remote sensing and in-situ data indicates that the model is able to simulate the

A study of burrow morphology in representative axiidean and gebiidean mud shrimps, from the Persian Gulf and Gulf of Oman, Iran

Directory of Open Access Journals (Sweden)

Vahid Sepahvand

Full Text Available Mud shrimps (formerly Thalassinidea are common burrow dwelling decapod crustaceans in the littoral zone of the Persian Gulf and Gulf of Oman. Their burrow morphology was investigated using foam casting methods. The present study shows that the burrow morphology in Upogebia carinicauda is not consistent and the recorded variations are based on habitat type and some physical characteristics of sediments. Adult burrow morphology in sandy-muddy substrate with shells, and boulder field habitats were Y-shaped and complex burrows of horizontal channels with turning chambers and vertical connections to internal passages or crevices of boulders, respectively. In burrows of U. carinicauda, some narrow passages, connected to the upper part of adult burrows in sandy-muddy habitats, belong to juveniles. Another species, Neocallichirus jousseaumei was found under boulders in sandy-muddy habitats of the Gulf of Oman and Qeshm Island, Persian Gulf. Since this type of habitat is special in some features, no conspicuous ex-current openings (usually obvious as conical mounds of extruded sediment have been observed on the sediment surface; as these were hidden among the boulders surrounded by mixed sand and shells. The only method for observing this type of burrow was to remove the boulders by hand or lever.

78 FR 36309 - Research Advisory Committee on Gulf War Veterans' Illnesses, Notice of Meeting

Science.gov (United States)

2013-06-17

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses, Notice... Act, 5 U.S.C. App., that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... operations during the Gulf War. [[Page 36310

Transtensional Rifting in the Late Proto-Gulf of California Near Bahía Kino, Sonora, México

Science.gov (United States)

Bennett, S. E.; Oskin, M. E.; Dorsey, R. J.

2009-12-01

We investigate the role of obliquity in continental rupture from the example of the Gulf of California rift. Focused transtensional strain adjacent to strike-slip faults, ubiquitous in oblique rifts, may act as a catalyst for lithospheric rupture. To test this hypothesis we completed detailed structural mapping, fault kinematic analysis, basin analysis, and paleomagnetism of pre- and syn-rift volcanic and sedimentary rocks exposed in coastal Sonora, near Bahía Kino, México. This area is host to the NW-striking, dextral Sacrificio and Bahía Kino faults onshore that are likely linked to the offshore De Mar transform fault that accommodated Gulf opening. Three fault-bounded sedimentary basins formed unconformably above the 12.50 ± 0.08 Ma Tuff of San Felipe. The 6.53 ± 0.18 Ma Tuff of Cerro Tordillo and the 6.39 ± 0.02 Ma Tuffs of Mesa Cuadrada are interbedded in the lower part of the non-marine basin fill. In one of these basins, we used these tuff markers to calibrate a sedimentation rate of 1.2 ± 0.2 mm/yr and a tilting rate of 0.12 ± 0.02 °/kyr. These rapid rates suggest transtensional strain and related basin subsidence initiated ca. 6.6 Ma, near the end of proto-Gulf time. Paleomagnetism of the Tuff of San Felipe and Tuffs of Mesa Cuadrada in coastal Sonora show variable amounts of clockwise vertical-axis rotation when compared to paleomagnetic reference sites in Baja California. Fault blocks in the central and southern parts of the study area are rotated counter-clockwise 15° to clockwise 35°. Strike-slip faults in this area accommodate up to 10 km of slip. In contrast, ~53° of clockwise rotation occurred in the northern part of the study area, where strike-slip faults are absent. In this northern area, transtensional deformation occurred primarily by block rotation and ~6 km of normal slip on the low-angle (5-15°) Punta Chueca fault. After correcting for variable amounts of rotation, fault blocks display a consistent tilt down to the ENE. Pre

Subtidal micro and meiobenthic community structure in the Gulf of Kachchh

Digital Repository Service at National Institute of Oceanography (India)

Ingole, B.S.; Goltekar, R.

Community structure of the micro- and meiobenthos of subtidal sediment from the Gulf of Kachchh were investigated during April 2002 (premonsoon season). Sediment samples were collected from 23 stations representing the entire Gulf area. A total...

Tropical cyclone disasters in the Gulf of Thailand

Directory of Open Access Journals (Sweden)

Suphat Vongvisessomjai

2009-07-01

Full Text Available The origin of tropical cyclones in the South China Sea is over a vast deep sea, southeast of the Philippines. The severetropical cyclones in summer with northerly tracks attack the Philippines, China, Korea and Japan, while the moderate ones inthe rainy season with northwesterly tracks pass Vietnam, Laos and northern Thailand. In October, November and December, the tropical cyclones are weakened and tracks shift to a lower latitude passing the Gulf of Thailand. Tropical cyclone disasters in the Gulf of Thailand due to strong winds causing storm surges and big waves or heavy rainfall over high mountains in causing floods and land slides result in moderate damages and casualties. Analyses are made of six decades of data of tropical cyclones from 1951-2006 having averaged numbers of 3 and 13 in Thailand and the South China Sea respectively. Detailed calculation of surges and wave heights of the 5 disastrous tropical cyclones in the Gulf of Thailand reveal that the Upper Gulf of Thailand with a limited fetch length of about 100 km in north/south direction and about 100 km width in the east/west direction, resulted in a limited maximum wave height of 2.3-2.5 m and maximum storm surge height of 1.2 m generated by Typhoon Vae (1952, while the east coast, with longer fetch lengthbut still limited by the existence of its shoreline, resulted in an increased maximum wave height of 4 m and maximum storm surge height of 0.6 m in the Upper Gulf of Thailand generated by Typhoon Linda (1997. These are the Probable Maximum Cyclones here.The southern shoreline, with unlimited fetch length on the east by tropical cyclones approaching from the South China Sea, generated maximum wave height of 6-11 m by Typhoon Gay (1989, resulting in more casualties and damages. Note that storm surges on the southern shorelines with steep slopes are small due to the short distance of shallow shorelines in receiving wind stresses for piling up sea levels. These disasters can be

Gulf of Mexico Sales 142 and 143: Central and western planning areas

International Nuclear Information System (INIS)

1992-11-01

This environmental impact statement (EIS) addresses two proposed Federal actions, lease Sales 142 and 143, that will offer for lease Gulf of Mexico Outer Continental Shelf (OCS) areas that may contain economically recoverable oil and gas resources. The lease sales are proposed for 1993 and include lease blocks in the Central Gulf of Mexico Planning Area (CPA) and Western Gulf of Mexico Planning Area (WPA). Up to 10,099 blocks will be available for lease under the two proposed actions; only a small percentage is expected to be actually leased. On average, 401 blocks in the Central Gulf and 264 blocks in the Western Gulf have been leased in individual Gulf of Mexico OCS lease sales since 1984. Of the blocks that will be leased as a result of the two proposed actions, only a portion will be drilled and result in subsequent production. The scoping process was used to obtain information and comments on the proposed actions and the potential environmental effects from diverse interests, including the affected States, Federal agencies, the petroleum industry, environmental and public interest groups, and concerned individuals. The input from these sources aided in the identification of significant issues, possible alternatives to the proposed actions, and potential mitigating measures

Gulf War veterans' health: medical evaluation of a U.S. cohort.

Science.gov (United States)

Eisen, Seth A; Kang, Han K; Murphy, Frances M; Blanchard, Melvin S; Reda, Domenic J; Henderson, William G; Toomey, Rosemary; Jackson, Leila W; Alpern, Renee; Parks, Becky J; Klimas, Nancy; Hall, Coleen; Pak, Hon S; Hunter, Joyce; Karlinsky, Joel; Battistone, Michael J; Lyons, Michael J

2005-06-07

United States military personnel reported various symptoms after deployment to the Persian Gulf during the 1991 Gulf War. However, the symptoms' long-term prevalence and association with deployment remain controversial. To assess and compare the prevalence of selected medical conditions in a national cohort of deployed and nondeployed Gulf War veterans who were evaluated by direct medical and teledermatologic examinations. A cross-sectional prevalence study performed 10 years after the 1991 Gulf War. Veterans were examined at 1 of 16 Veterans Affairs medical centers. Deployed (n = 1061) and nondeployed (n = 1128) veterans of the 1991 Gulf War. Primary outcome measures included fibromyalgia, the chronic fatigue syndrome, dermatologic conditions, dyspepsia, physical health-related quality of life (Short Form-36 [SF-36]), hypertension, obstructive lung disease, arthralgias, and peripheral neuropathy. Of 12 conditions, only 4 conditions were more prevalent among deployed than nondeployed veterans: fibromyalgia (deployed, 2.0%; nondeployed, 1.2%; odds ratio, 2.32 [95% CI, 1.02 to 5.27]); the chronic fatigue syndrome (deployed, 1.6%; nondeployed 0.1%; odds ratio, 40.6 [CI, 10.2 to 161]); dermatologic conditions (deployed, 34.6%; nondeployed, 26.8%; odds ratio, 1.38 [CI, 1.06 to 1.80]), and dyspepsia (deployed, 9.1%; nondeployed, 6.0%; odds ratio, 1.87 [CI, 1.16 to 2.99]). The mean physical component summary score of the SF-36 for deployed and nondeployed veterans was 49.3 and 50.8, respectively. Relatively low participation rates introduce potential participation bias, and deployment-related illnesses that resolved before the research examination could not, by design, be detected. Ten years after the Gulf War, the physical health of deployed and nondeployed veterans is similar. However, Gulf War deployment is associated with an increased risk for fibromyalgia, the chronic fatigue syndrome, skin conditions, dyspepsia, and a clinically insignificant decrease in the SF-36

Binational collaboration to study Gulf of Mexico's harmful algae

Science.gov (United States)

Soto, Inia; Hu, Chuanmin; Steidinger, Karen; Muller-Karger, Frank; Cannizzaro, Jennifer; Wolny, Jennifer; Cerdeira-Estrada, Sergio; Santamaria-del-Angel, Eduardo; Tafoya-del-Angel, Fausto; Alvarez-Torres, Porfirio; Herrera Silveira, Jorge; Allen, Jeanne

2012-01-01

Blooms of the toxic marine dinoflagellate Karenia brevis cause massive fish kills and other public health and economic problems in coastal waters throughout the Gulf of Mexico [Steidinger, 2009]. These harmful algal blooms (HABs) are a gulf-wide problem that require a synoptic observing system for better serving decision-making needs. The major nutrient sources that initiate and maintain these HABs and the possible connectivity of blooms in different locations are important questions being addressed through new collaborations between Mexican and U.S. researchers and government institutions. These efforts were originally organized under the U.S./Mexico binational partnership for the HABs Observing System (HABSOS), led by the U.S. Environmental Protection Agency's Gulf of Mexico Program (EPAGMP) and several agencies in Veracruz, Mexico, since 2006. In 2010 these efforts were expanded to include other Mexican states and institutions with the integrated assessment and management of the Gulf of Mexico Large Marine Ecosystem (GoMLME) program sponsored by the Global Environment Facility (GEF), the United Nations Industrial Development Organization (UNIDO), the Secretaría de Medio Ambiente y Recursos Naturales (SEMARNAT), and the National Oceanic and Atmospheric Administration (NOAA).

77 FR 64597 - Proposed Information Collection (Survey of Chronic Gastrointestinal Illness in Persian Gulf...

Science.gov (United States)

2012-10-22

... of Chronic Gastrointestinal Illness in Persian Gulf Veterans (Irritable Bowel Syndrome--Diarrhea... information needed to evaluate chronic gastrointestinal disorders in Persian Gulf War Veterans. DATES: Written... Gastrointestinal Illness in Persian Gulf Veterans, VA Form 10-21092c. OMB Control Number: 2900-0742. Type of Review...

77 FR 31071 - Research Advisory Committee on Gulf War Veterans' Illnesses, Notice of Meeting

Science.gov (United States)

2012-05-24

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses, Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... Asia theater of operations during the Gulf War. The Committee will review VA program activities related...

75 FR 28686 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2010-05-21

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... Asia theater of operations during the Gulf War. The Committee will review VA program activities related...

76 FR 9407 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2011-02-17

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... Southwest Asia theater of operations during the Gulf War. The Committee will review VA program activities...

75 FR 65405 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2010-10-22

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... Asia theater of operations during the Gulf War. The Committee will review VA program activities related...

Bilans d'éléments minéraux dans de petits bassins versants forestiers de Galice (NW Espagne)

OpenAIRE

Dambrine , Etienne ,; Vega , José; Taboada , Teresa; Rodriguez , Luis; Fernandez , Cristina; Macias , Felipe; Gras , José

2000-01-01

International audience; Budgets of mineral elements in small forested catchments in Galicia (NW Spain). In order to assess the sustainability of mineral supply to fast growing Eucalyptus globulus and Pinus pinaster stands in Galice (NW Spain), we calculated (input-output) nutrient budgets in three small catchments: the Castrove and Jabali catchments with eucalyptus on a base poor granite and the Arcos catchment with pine on granodiorite. In each catchment, the annual drainage output was lower...

Preliminary Feasibility Assessment of Integrating CCHP with NW Food Processing Plant #1: Modeling Documentation

Energy Technology Data Exchange (ETDEWEB)

Hoffman, Michael G.; Srivastava, Viraj; Wagner, Anne W.; Makhmalbaf, Atefe; Thornton, John

2014-01-01

The Pacific Northwest National Laboratory (PNNL) has launched a project funded by the Bonneville Power Association (BPA) to identify strategies for increasing industrial energy efficiency and reducing energy costs of Northwest Food Processors Association (NWFPA) plants through deployment of novel combinations and designs of variable-output combined heat and power (CHP) distributed generation (DG), combined cooling, heating and electric power (CCHP) DG and energy storage systems. Detailed evaluations and recommendations of CHP and CCHP DG systems will be performed for several Northwest (NW) food processing sites. The objective is to reduce the overall energy use intensity of NW food processors by 25% by 2020 and by 50% by 2030, as well as reducing emissions and understanding potential congestion reduction impacts on the transmission system in the Pacific Northwest.

Who Benefits from Foreign Universities in the Arab Gulf States?

Science.gov (United States)

Wilkins, Stephen

2011-01-01

The Arab Gulf States are the largest hosts of international branch campuses globally. By increasing higher education capacity in the Arab Gulf States by over 30,000 places, foreign institutions have, through various forms of transnational provision, increased significantly the accessibility of higher education to young people living in these…

38 CFR 21.5053 - Restoration of contributions (Persian Gulf War).

Science.gov (United States)

2010-07-01

... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Restoration of contributions (Persian Gulf War). 21.5053 Section 21.5053 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF... Assistance Under 38 U.S.C. Chapter 32 Participation § 21.5053 Restoration of contributions (Persian Gulf War...

‘A Passport to Cross the Room’: Cosmopolitan Empathy and Transnational Engagement in Zadie Smith’s NW (2012

Directory of Open Access Journals (Sweden)

Kristian Shaw

2017-01-01

Full Text Available This article seeks to demonstrate that Zadie Smith’s fourth novel, 'NW' (2012, deviates away from celebratory multiculturalism in Britain, interrogating the struggle between critical cosmopolitanism and melancholia in a twenty-first century urban environment. It will be argued that Smith’s limited geographical focus (on an area in which she was born and continues to reside intimates that the social constructs of the family and local community are more conducive to developing cosmopolitan empathy and meaningful relations. Through an analysis of the ethical values of hospitality and openness, it will be suggested that 'NW' reflects a rise in transnational relations and the construction of a cultural model of cosmopolitan communication haunted by national identity and the difficulties of negotiating cultural diversity. The article will then conclude by examining how 'NW' exposes the racial inequalities and socio-economic disparities continuing to reside at the heart of British urban life.

On the future role of Gulf oil in meeting world energy demand

International Nuclear Information System (INIS)

Nagy Eltony, M.

1996-01-01

The validity of the view of a growing dependence of the world on oil from the Persian Gulf, and the resulting implications for the economies of the Gulf countries were examined. The prevailing view in the countries of the Persian Gulf is that the demand for oil will continue to rise, resulting in the inevitable increase in prices which will in turn alleviate the budget deficit problems currently encountered by most of the countries of the Gulf Cooperation Council (GCC) states. The author argues that the implication of this view is that GCC countries are failing to address the fundamental structural problems within their economies, and raise questions that tend to undermine this hypothesis of continuing dependence on Gulf oil by the rest of the world. Some of these factors are growing reliance on electricity and natural gas, environmental concerns, development of alternative fuels, political instability in the Gulf states and the potential interruption in supply, all of which tend to accelerate the trend towards reduced demand for Gulf oil. The following have been recommended as ways of avoiding the ultimate risk of huge unwanted oil reserves: diversification of the economies of GCC countries; reduced spending and increased investment in developing further capacity from non-GCC sources through cooperation and joint ventures between developing countries and international companies; a more active role in worldwide decisions relating to environmental concerns; and finally, a systematic monitoring and evaluation of the likely impacts of new developments in all areas of alternative energy. 17 refs

Assessment of biological effects of environmental pollution along the NW Mediterranean Sea using mussels as sentinel organisms

International Nuclear Information System (INIS)

Zorita, Izaskun; Apraiz, Itxaso; Ortiz-Zarragoitia, Maren; Orbea, Amaia; Cancio, Ibon; Soto, Manu; Marigomez, Ionan; Cajaraville, Miren P.

2007-01-01

With the aim of assessing the biological effects of pollution along three gradients of pollution in the NW Mediterranean Sea, a biomonitoring survey was implemented using a battery of biomarkers (lysosomal membrane stability, lysosomal structural changes, metallothionein (MT) induction and peroxisome proliferation) in mussels over a period of two years as part of the EU-funded BEEP project. Mussels from the most impacted zones (Fos, Genova and Barcelona harbours) showed enlarged lysosomes accompanied by reduced labilisation period of lysosomal membranes, indicating disturbed health. MT levels did not reveal significant differences between stations and were significantly correlated with gonad index, suggesting that they were influenced by gamete development. Peroxisomal acyl-CoA oxidase (AOX) activity was significantly inhibited in polluted stations possibly due to interactions among mixtures of pollutants. In conclusion, the application of a battery of effect and exposure biomarkers provided relevant data for the assessment of biological effects of environmental pollution along the NW Mediterranean Sea. - The biomarker approach is suitable for assessment of environmental pollution in the NW Mediterranean Sea

Assessment of biological effects of environmental pollution along the NW Mediterranean Sea using mussels as sentinel organisms

Energy Technology Data Exchange (ETDEWEB)

Zorita, Izaskun [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Apraiz, Itxaso [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Ortiz-Zarragoitia, Maren [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Orbea, Amaia [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Cancio, Ibon [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Soto, Manu [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Marigomez, Ionan [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Cajaraville, Miren P. [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Univ. del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain)]. E-mail: mirenp.cajaraville@ehu.es

2007-07-15

With the aim of assessing the biological effects of pollution along three gradients of pollution in the NW Mediterranean Sea, a biomonitoring survey was implemented using a battery of biomarkers (lysosomal membrane stability, lysosomal structural changes, metallothionein (MT) induction and peroxisome proliferation) in mussels over a period of two years as part of the EU-funded BEEP project. Mussels from the most impacted zones (Fos, Genova and Barcelona harbours) showed enlarged lysosomes accompanied by reduced labilisation period of lysosomal membranes, indicating disturbed health. MT levels did not reveal significant differences between stations and were significantly correlated with gonad index, suggesting that they were influenced by gamete development. Peroxisomal acyl-CoA oxidase (AOX) activity was significantly inhibited in polluted stations possibly due to interactions among mixtures of pollutants. In conclusion, the application of a battery of effect and exposure biomarkers provided relevant data for the assessment of biological effects of environmental pollution along the NW Mediterranean Sea. - The biomarker approach is suitable for assessment of environmental pollution in the NW Mediterranean Sea.

Groundwater-derived nutrient inputs to the Upper Gulf of Thailand

Science.gov (United States)

Burnett, William C.; Wattayakorn, Gullaya; Taniguchi, Makoto; Dulaiova, Henrieta; Sojisuporn, Pramot; Rungsupa, Sompop; Ishitobi, Tomotoshi

2007-01-01

We report here the first direct measurements of nutrient fluxes via groundwater discharge into the Upper Gulf of Thailand. Nutrient and standard oceanographic surveys were conducted during the wet and dry seasons along the Chao Phraya River, Estuary and out into the Upper Gulf of Thailand. Additional measurements in selected near-shore regions of the Gulf included manual and automatic seepage meter deployments, as well as nutrient evaluations of seepage and coastal waters. The river transects characterized the distribution of biogeochemical parameters in this highly contaminated urban environment. Seepage flux measurements together with nutrient analyses of seepage fluids were used to estimate nutrient fluxes via groundwater pathways for comparison to riverine fluxes. Our findings show that disseminated seepage of nutrient-rich mostly saline groundwater into the Upper Gulf of Thailand is significant. Estimated fluxes of dissolved inorganic nitrogen (DIN) supplied via groundwater discharge were 40-50% of that delivered by the Chao Phraya River, inorganic phosphate was 60-70%, and silica was 15-40%. Dissolved organic nitrogen (DON) and phosphorus (DOP) groundwater fluxes were also high at 30-40% and 30-130% of the river inputs, respectively. These observations are especially impressive since the comparison is being made to the river that is the largest source of fresh water into the Gulf of Thailand and flows directly through the megacity of Bangkok with high nutrient loadings from industrial and domestic sources.

Sediment pollution by heavy metals in the Strymonikos and Ierissos Gulfs, North Aegean Sea, Greece.

Science.gov (United States)

Stamatis, Nikolaos; Ioannidouw, Despina; Christoforidis, Achilleas; Koutrakis, Emmanouil

2002-11-01

Surface sediment samples from Strymonikos and Ierissos Gulfs were analyzed for Cu, Pb, Zn, Cr and Ni. The results showed that the sediment of Ierissos Gulf is more polluted with Cu, Pb, and Zn as compared to that of Strymonikos Gulf. The benthal area located off the load-out facility of the mining operations in the town of Stratoni, in Ierissos Gulf is established as the most polluted region. The distribution of Cr and Ni in both gulfs indicates the natural origin of these metals with the weathering of Strymon River and of other smaller rivers rocks being responsible for their enrichment.

Biomarkers of Aryl-hydrocarbon Receptor Activity in Gulf Killifish (Fundulus grandis) From Northern Gulf of Mexico Marshes Following the Deepwater Horizon Oil Spill.

Science.gov (United States)

Dubansky, Benjamin; Rice, Charles D; Barrois, Lester F; Galvez, Fernando

2017-07-01

Following the Deepwater Horizon oil spill, shorelines throughout the Barataria Basin of the northern Gulf of Mexico in Louisiana were heavily oiled for months with Macondo-252 oil, potentially impacting estuarine species. The Gulf killifish (Fundulus grandis) has been identified as a sentinel species for the study of site-specific effects of crude oil contamination on biological function. In November and December 2010, 4-5 months after the Macondo well was plugged and new oil was no longer spilling into the Gulf waters, Gulf killifish were collected across the Barataria Basin from 14 sites with varying degrees of oiling. Fish collected from oiled sites exhibited biological indications of exposure to oil, including increase in cytochrome P4501A (CYP1A) mRNA transcript and protein abundances in liver tissues. Immunohistochemistry revealed increases in gill, head kidney, and intestinal CYP1A protein at heavily oiled sites. Intestinal CYP1A protein was a sensitive indicator of exposure, indicating that intestinal tissue plays a key role in biotransformation of AHR ligands and that ingestion is a probable route of exposure, warranting additional consideration in future studies.

78 FR 6404 - Agency Information Collection (Survey of Chronic Gastrointestinal Illness in Persian Gulf...

Science.gov (United States)

2013-01-30

... of Chronic Gastrointestinal Illness in Persian Gulf Veterans) Activities Under OMB Review AGENCY.... Survey of Chronic Gastrointestinal Illness in Persian Gulf Veterans, VA Form 10-21092a. b. VA Research...: Approximately 25 percent military troops who were deployed in the first Persian Gulf War returned with...

76 FR 31018 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2011-05-27

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... consequences of military service in the Southwest Asia theater of operations during the Gulf War. The Committee...

77 FR 2353 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2012-01-17

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... consequences of military service in the Southwest Asia theater of operations during the Gulf War. The Committee...

78 FR 77205 - Research Advisory Committee on Gulf War Veterans' Illnesses; Notice of Meeting

Science.gov (United States)

2013-12-20

... DEPARTMENT OF VETERANS AFFAIRS Research Advisory Committee on Gulf War Veterans' Illnesses; Notice... Advisory Committee Act) that the Research Advisory Committee on Gulf War Veterans' Illnesses will meet on... service in the Southwest Asia theater of operations during the Gulf War. The Committee will review VA...

The problems of the Arabian-Persian gulf

International Nuclear Information System (INIS)

Labrousse, H.

2004-01-01

The origin of the problems of the Arabian-Persian gulf is the delimitation of the maritime borders between the different bordering states and the exploitation rights of the offshore fields. Despite some bilateral agreements, the non-ratification by two bordering states of the United Nations convention on sea rights, deprives some negotiations of any legal framework. The Hormuz strait, the only opening of the gulf towards the Indian ocean, is tightly controlled by maritime powers which will never accept any interference with the maritime circulation in this pathway of considerable importance for petroleum transportation and for the world economy. (J.S.)

A Call for More Research from the Arabian Gulf.

Science.gov (United States)

AlMarri, Fatemah; Al Sabah, Salman; Al Haddad, Eliana; Vaz, Jonathan D

2017-08-01

Obesity has become an epidemic in the Arabian Gulf, with the prevalence of obesity according to the latest report from the World Health Organization (WHO) showing the gulf region to be countries with the highest incidence of obesity in the 30% plus group. This study aims to examine publications on bariatric surgery and compare them with the other countries with a high incidence of obesity in the world. A literature review on bariatric surgery published from the earliest detected year of publication up until March 2016 using SCOPUS, PubMed, Ovid, and Google Scholar was conducted. Individual papers were assessed for types of surgery, preoperative measures, names of journals, authors, and outcomes. The data was analyzed using Endnote library and SPSS. Key words used in the search included "Bariatric Surgery," "Arabian Gulf," "Kuwait," "Qatar," "Saudi Arabia," "United Arab Emirates," "Oman," "USA," "Australia," "weight loss surgery," "sleeve gastrectomy," "gastric bypass," "gastric band," "mini-gastric bypass," "biliropancreatic diversion," "duodenal switch," and "intragastric balloon." Original papers, systematic reviews and case reports were included. From our review, the gastric sleeve proved to be the most popular published on procedure in the Arabian Gulf, whereas the USA had the highest percentage of gastric bypass surgeries and Australia had equivalent numbers when it came to gastric bypass and band. The numbers of studies from Saudi Arabia, Kuwait, UAE, Bahrain, Qatar, and Oman were 70, 44, 20, 7, 6, and 0, respectively. The mean impact factor of the published articles was 2.53 +/- 1.76 SD. Most of the publications were published in Obesity Surgery (29%), Surgery for Obesity and Related Diseases (5%), and Surgical Endoscopy (5%). The Arabian Gulf has both the highest percentage of bariatric procedures performed as well as the highest prevalence of obesity. However, they have the lowest number of publications and research when compared to their western

76 FR 21099 - Determinations Concerning Illnesses Discussed In National Academy of Sciences Reports on Gulf War...

Science.gov (United States)

2011-04-14

... of Sciences Reports on Gulf War and Health, Volumes 4 and 8 AGENCY: Department of Veterans Affairs... that the Secretary of Veterans Affairs, under the authority granted by the Persian Gulf War Veterans...), respectively titled Gulf War and Health, Volume 4: Health Effects of Serving in the Gulf War (Volume 4) and...

Microseismicity, tectonics and seismic potential in the Western Himalayan segment, NW Himalaya, India

Science.gov (United States)

Parija, Mahesh Prasad; Kumar, Sushil; Tiwari, V. M.; Rao, N. Purnachandra; Kumar, Narendra; Biswal, Shubhasmita; Singh, Ishwar

2018-06-01

The tectonics and seismic potential of the western Himalayan segment (30-33°N; 76-80°E) of the NW Himalayan (India) region have been determined in this study. 423 earthquakes were located in the NW Himalaya between 2004 and 2013 using more than 4495 P and 4453 S differential travel times to determine the moment tensors for 8 (Mw ≥ 4.0) of these earthquakes using their broadband regional waveforms. The geometry of the Main Himalayan Thrust (MHT) plane which varies along the strike of the Himalaya in flat and ramp segments with a dip ranging between ∼2.5 to ∼4° to ∼19° below the Himalayan Frontal Thrust (HFT) in the south to the South Tibetan Detachment (STD) in the north has also been deduced in this study. Two crustal ramps were reported in this study with a depth variance below the Main Central Thrust (MCT) and to the South Tibetan Detachment (STD) between 12 to 22 km and 28 to 40 km depth respectively. The estimated earthquake potential prevailing in the western Himalayan seismic gap lying between the epicentral zone of the 1905 Kangra earthquake and the 1975 Kinnaur earthquake reveals that the total amount of energy released since the last great event is only a fraction (3-5%) of the accommodated energy i.e.1.1E+28 dyne-cm/yr. This suggests that if an earthquake hits this NW Himalayan segment in the future, its magnitude might be around Mw ≥ 8.0.

Three distinct Holocene intervals of stalagmite deposition and nondeposition revealed in NW Madagascar, and their paleoclimate implications

Science.gov (United States)

Riavo Gilbertinie Voarintsoa, Ny; Railsback, Loren Bruce; Brook, George Albert; Wang, Lixin; Kathayat, Gayatri; Cheng, Hai; Li, Xianglei; Edwards, Richard Lawrence; Rakotondrazafy, Amos Fety Michel; Olga Madison Razanatseheno, Marie

2017-12-01

Petrographic features, mineralogy, and stable isotopes from two stalagmites, ANJB-2 and MAJ-5, respectively from Anjohibe and Anjokipoty caves, allow distinction of three intervals of the Holocene in NW Madagascar. The Malagasy early Holocene (between ca. 9.8 and 7.8 ka) and late Holocene (after ca. 1.6 ka) intervals (MEHI and MLHI, respectively) record evidence of stalagmite deposition. The Malagasy middle Holocene interval (MMHI, between ca. 7.8 and 1.6 ka) is marked by a depositional hiatus of ca. 6500 years. Deposition of these stalagmites indicates that the two caves were sufficiently supplied with water to allow stalagmite formation. This suggests that the MEHI and MLHI intervals may have been comparatively wet in NW Madagascar. In contrast, the long-term depositional hiatus during the MMHI implies it was relatively drier than the MEHI and the MLHI. The alternating wet-dry-wet conditions during the Holocene may have been linked to the long-term migrations of the Intertropical Convergence Zone (ITCZ). When the ITCZ's mean position is farther south, NW Madagascar experiences wetter conditions, such as during the MEHI and MLHI, and when it moves north, NW Madagascar climate becomes drier, such as during the MMHI. A similar wet-dry-wet succession during the Holocene has been reported in neighboring locations, such as southeastern Africa. Beyond these three subdivisions, the records also suggest wet conditions around the cold 8.2 ka event, suggesting a causal relationship. However, additional Southern Hemisphere high-resolution data will be needed to confirm this.

The Arabian Gulf and Security Policy: The Past as Present, the Present as Future

Science.gov (United States)

2009-04-01

permeates the Green Zone. Recent cooperation between the Maliki government and Sunni groups represents the tactical “divide-and-conquer” approach to... Kegan Paul, 2005), 76-77. 42. Zahlan, Modern Gulf States, 65. 43. Peck, Gulf Arab States, 38. 44. Zahlan, Modern Gulf States, 67. 70 JSOU Report

CRED REA Fish Team Belt Transect Survey at Maro Reef, NW Hawaiian Islands, 2006

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Belt transects along 3 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 9 sites at Maro Reef in the NW...

CMS: Simulated Physical-Biogeochemical Data, SABGOM Model, Gulf of Mexico, 2005-2010

Data.gov (United States)

National Aeronautics and Space Administration — This dataset contains monthly mean ocean surface physical and biogeochemical data for the Gulf of Mexico simulated by the South Atlantic Bight and Gulf of Mexico...

Rickettsia parkeri in Gulf Coast Ticks, Southeastern Virginia, USA

Science.gov (United States)

2011-05-01

Rickettsia parkeri in Gulf Coast Ticks, Southeastern Virginia, USA Chelsea L. Wright, Robyn M. Nadolny, Ju Jiang, Allen L. Richards, Daniel E...Virginia. We found that 43.1% of the adult Gulf Coast ticks collected in the summer of 2010 carried Rickettsia parkeri, suggesting that persons living in...or visiting southeastern Virginia are at risk for infection with this pathogen. Rickettsia parkeri is an obligate intracellular bacterium belonging

Time required for gulf restoration uncertain

International Nuclear Information System (INIS)

Anon.

1992-01-01

Hurricane Andrew's long term effect on Gulf of Mexico oil and gas operations likely won't be known until next year. This paper reports that while damage assessments have moved beyond the emergency stage, many offshore service companies say reliable estimates of the extent of damage or cost of repairs still are unavailable. The time needed to complete restorations won't be known conclusively until more organized surveys are complete. Even then, many contractors say, gulf operators must decide how to handle damage at each location-whether to repair damaged structures or replace them by applying technology not available when many of the fields were developed. Some damaged installations will not be replaced or restored, and the production will be lost

[Immigration in the countries of the Gulf: some specific aspects].

Science.gov (United States)

Labib, A

1987-06-01

"This essay analyses some aspects of the in-migration flows to the Gulf countries, coming from other Arab countries as well as developing nations. Since the 80's, the Gulf countries have endorsed a restrictive policy concerning manpower import, even though they still need foreign workers. The Gulf countries pursue this policy as they fear that the presence of millions of foreign labourers will create social tension. The situation of the foreign labour force is uncertain and is bound to the role of the middleman, the local kafil, and that of the recruiting agencies. Rotation of foreign workers is very high. It has reached the 10 million mark in ten years." (SUMMARY IN ENG) excerpt

WATER TEMPERATURE and other data from NOAA Ship RESEARCHER, NOAA Ship MILLER FREEMAN and other platforms in the Gulf of Mexico, NW Atlantic and NE Pacific from 1987-01-08 to 1987-07-01 (NODC Accession 8700254)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile data were collected using XBT and BT casts from NOAA Ship RESEARCHER and other platforms in the Gulf of Mexico and Northwest Atlantic Ocean from...

Monitoring of Landslides using Repeated Kinematics GPS Observables in Sevketiye Town, Biga Peninsula, Çanakkale, NW Turkey

Science.gov (United States)

Cuneyt Erenoglu, Ramazan; Akcay, Ozgun; Karaca, Zeki; Erenoglu, Oya; Sengul Uluocak, Ebru; Yucel, Mehmet Ali

2014-05-01

Landslide is one of the most important natural events, and is also a result of earth's crust movements. Landslides generally result in the outward and downward movement of slope-forming materials consisting soil, rock, artificial fill and etc. Moreover, possible earthquakes are one of the main reasons of triggering landslides in active areas seismically. There have been many studies based on the Global Positioning System (GPS) observables to compute the three dimensional positioning of established sites, and to model landslides precisely. We can monitor landslide with GPS using continuous data collection or the type of campaign surveying. While continuous data collection provide a millimetre-level of accuracy, the accuracy decreases with the shorter sessions, e.g. campaign surveying, due to possible sources of error. The area, located west of the Çanakkale, has been studied to identify the landslide susceptibility and geology. Çanakkale, NW Turkey, is located on the territory of the Biga Peninsula and the Gallipoli Peninsula. The section of remaining at the west of the line from the Gulf of Edremit to the Gulf of Erdek is called Biga Peninsula, and it covers an area of approximately 10 thousand km². In the Biga Peninsula, the main morphological units are at the western, northern and southern of coastal plains, and on their behind the hills, plateaus and mountainous areas of the inland. But at the middle areas, it is often possible to find the tectonic depressions sandwiched between the masses plateau and mountainous. In general, moving down the slope of a rock, soil or debris can be defined as landslides that are ranks second in terms of caused losses after earthquakes in Turkey. Landslides, harm to urbanization as well as loss of lives and economic losses. Moreover they adversely affects to agricultural, forest areas and the quality of the rivers. For example, the gas pipeline connecting Turkey and Greece, which will provide gas to the Southern Europe passes

Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada

Science.gov (United States)

Minor, S.A.; Orkild, P.P.; Sargent, K.A.; Warren, R.G.; Sawyer, D.A.; Workman, J.B.

1998-01-01

This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, dike, and caldera wall), and point (i.e., structural attitude) vector data for the Thirsty Canyon NW 7 1/2' quadrangle in southern Nevada. The map database, which is at 1:24,000-scale resolution, provides geologic coverage of an area of current hydrogeologic and tectonic interest. The Thirsty Canyon NW quadrangle is located in southern Nye County about 20 km west of the Nevada Test Site (NTS) and 30 km north of the town of Beatty. The map area is underlain by extensive layers of Neogene (about 14 to 4.5 million years old [Ma]) mafic and silicic volcanic rocks that are temporally and spatially associated with transtensional tectonic deformation. Mapped volcanic features include part of a late Miocene (about 9.2 Ma) collapse caldera, a Pliocene (about 4.5 Ma) shield volcano, and two Pleistocene (about 0.3 Ma) cinder cones. Also documented are numerous normal, oblique-slip, and strike-slip faults that reflect regional transtensional deformation along the southern part of the Walker Lane belt. The Thirsty Canyon NW map provides new geologic information for modeling groundwater flow paths that may enter the map area from underground nuclear testing areas located in the NTS about 25 km to the east. The geologic map database comprises six component ArcINFO map coverages that can be accessed after decompressing and unbundling the data archive file (tcnw.tar.gz). These six coverages (tcnwpoly, tcnwflt, tcnwfold, tcnwdike, tcnwcald, and tcnwatt) are formatted here in ArcINFO EXPORT format. Bundled with this database are two PDF files for readily viewing and printing the map, accessory graphics, and a description of map units and compilation methods.

77 FR 9897 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2012-02-21

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Special Coral Scientific... Mexico Fishery Management Council; Public Meetings AGENCY: National Marine Fisheries Service (NMFS... Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. Council address: Gulf of Mexico Fishery...

77 FR 4282 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2012-01-27

... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Shrimp Stock... Laboratory, 4700 Avenue U, Galveston, TX 77551-5997. Council address: Gulf of Mexico Fishery Management... Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION: The Shrimp Stock Assessment Review...

Seasonal characteristics of water exchange in Beibu Gulf based on a particle tracking model

Science.gov (United States)

Wang, L.; Pan, W.; Yan, X.

2016-12-01

A lagrangian particle tracking model coupled with a three-dimensional Marine Environmental Committee Ocean Model (MEC) is used to study the transport and seasonal characteristics of water exchange in Beibu Gulf. The hydrodynamic model (MEC), which is forced with the daily surface and lateral boundary fluxes, as well as tidal harmonics and monthly climatological river discharges, is applied to simulate the flow field in the gulf during 2014. Using these results, particle tracking method which includes tidal advection and random walk in the horizontal is used to determine the residence times of sub regions within the gulf in response of winter and summer wind forcing. The result shows water exchange processes in the gulf have a similar tendency with seasonal circulation structure. During the sourthwestly prevailing wind in summer, water particles are traped within the gulf that considerably increases the residence time of each sub region. On the contrary, the presence of strong northeastly prevailing wind in winter drives particles to move cyclonicly leading to shorter residence times and rather active water exchanges among sub regions. Similarly, particle tracking is applied to investigate the water transport in Beibu Gulf. As Qiongzhou Strait and the wide opening in the south of the gulf are two significant channels connecting with the open ocean, continuous particle releases are simulated to quantify the influence range and the pathways of these sources water flowing into Beibu Gulf. The results show that water particles originated from Qiongzhou Strait are moving westward due to the year-round strong westward flow transportation. Influencing range in the north of the Beibu Gulf is enlarged by winter northeastly wind, however, it is blocked to the Leizhou Peninsula coastal region by summer westly wind. In the south opening, water particles are transported northward into the gulf along Hainan Island and flushed from Vietnam coastal region to the ocean rapidly by

Early Restoration Public Meeting, Washington, DC | NOAA Gulf Spill

Science.gov (United States)

benefit injured marshes, coastal dune and nearshore habitats, oysters, and human uses (on water recreation . Department of Commerce Herbert Hoover Building Auditorium 1401 Constitution Ave., NW Washington, D.C. 20230

Cost-effective reduction of eutrophication in the Gulf of Kalloni (Island of Lesvos, Greece

Directory of Open Access Journals (Sweden)

B. ZANOU

2001-06-01

Full Text Available This study presents a cost-effective analysis by comparing the costs of measures (options to improve the quality of bathing waters in the Gulf of Kalloni (island of Lesvos, Greece in order to reduce the anthropogenic eutrophication in the coastal water of the Kalloni Gulf. The Gulf of Kalloni is a semi-enclosed gulf (115 km2 which receives municipal wastewater, agricultural activity drainage, and at times sewage from olive oil plants processing the local olives harvest. The area of study consists of the coastal waters and the river basin of which water run-off drains into the gulf. Four options are comparable in their environmental effectiveness to reduce eurtophication damages which are: municipal wastewater treatment plant, construction of dams, organic farming plus training and olive oil wastewater treatment plant.

First record of two hard coral species (Faviidae and Siderastreidae from Qeshm Island (Persian Gulf, Iran

Directory of Open Access Journals (Sweden)

MOHAMMAD SHARIF RANJBAR

2010-01-01

Full Text Available Moradi M, Kamrani E, Shokri MR, Ranjbar MS, Hesni MA (2009 First record of two hard coral species (Faviidae and Siderastreidae from Qeshm Island (Persian Gulf, Iran. Nusantara Bioscience 2: 34-37. Two species of hard corals including Cyphastrea chalcidicum (Forskal 1775 (Faviidae and Coscinaraea monile (Forskal 1775 (Siderastreidae were collected from the south of Qeshm Island (Persian Gulf, Iran in the late of 2008. These species were previously reported from southern Persian Gulf, Gulf of Aden, Southeast Africa and Indo-Pacific. The literature review on the distribution of these two species revealed that these species were firstly recorded from the Persian Gulf. These findings further emphasize the high diversity of coral fauna in the Iranian waters of the northern Persian Gulf.

Preliminary observations of environmental damage due to the Gulf War

International Nuclear Information System (INIS)

El-Baz, F.

1992-01-01

Preparing for and conducting the Gulf War resulted in much damage to the environment of the region. The first and most visible effect is related to the damage caused by oil well fires in terms of air pollution as well as the potential damage to the petroleum reservoirs. The second detrimental effect has been caused by the oil spill in the Gulf water. Hundreds of miles of the western coastline of the Gulf are already covered with oil. Petroleum 'mats' have settled on coral reefs and have reduced Gulf water productivity. Foremost among the irreparable damages are changes to the terrain due to the digging of trenches, building walls of soil and otherwise disturbing the desert pavement in and around Kuwait. Disruption of the, usually, one-grain thick layer of pebbles on the desert floor exposes soil to wind action. Changing the contours of the normally flat land increases resistance to the wind and increases the potential of particle transport until the land is peneplained. This condition will increase the frequency and the ferocity of dust storms in the region. It will also result in the formation of new sand dunes; sand drifts already exist along roads in northern Kuwait. It is believed that the detrimental effects on the atmosphere will last for years, on the Gulf water for decades, and on the desert surface for centuries. (author). 12 refs, 1 fig

Preliminary observations of environmental damage due to the Gulf War

Energy Technology Data Exchange (ETDEWEB)

El-Baz, F [Boston Univ., Boston, MA (United States). Center for Remote Sensing

1992-02-01

Preparing for and conducting the Gulf War resulted in much damage to the environment of the region. The first and most visible effect is related to the damage caused by oil well fires in terms of air pollution as well as the potential damage to the petroleum reservoirs. The second detrimental effect has been caused by the oil spill in the Gulf water. Hundreds of miles of the western coastline of the Gulf are already covered with oil. Petroleum 'mats' have settled on coral reefs and have reduced Gulf water productivity. Foremost among the irreparable damages are changes to the terrain due to the digging of trenches, building walls of soil and otherwise disturbing the desert pavement in and around Kuwait. Disruption of the, usually, one-grain thick layer of pebbles on the desert floor exposes soil to wind action. Changing the contours of the normally flat land increases resistance to the wind and increases the potential of particle transport until the land is peneplained. This condition will increase the frequency and the ferocity of dust storms in the region. It will also result in the formation of new sand dunes; sand drifts already exist along roads in northern Kuwait. It is believed that the detrimental effects on the atmosphere will last for years, on the Gulf water for decades, and on the desert surface for centuries. (author). 12 refs, 1 fig.

75 FR 70162 - Presumptive Service Connection for Diseases Associated With Persian Gulf War Service: Functional...

Science.gov (United States)

2010-11-17

... Diseases Associated With Persian Gulf War Service: Functional Gastrointestinal Disorders AGENCY: Department... theater of operations during the Persian Gulf War. DATES: Comments must be received by VA on or before... Service Connection for Diseases Associated With Persian Gulf War Service: Functional Gastrointestinal...

Why is Coastal Community Resilience Important in the Gulf of Mexico Region?

Science.gov (United States)

The Gulf of Mexico Program supports the regional collaborative approach and efforts of the Coastal Community Resilience Priority Issue Team of the Gulf of Mexico Governors’ Alliance and its broad spectrum of partners and stakeholders.

Implication of coastal refineries to the ecology of the Gulf of Kachchh

Digital Repository Service at National Institute of Oceanography (India)

Zingde, M.D.; Anand, N.M.

bank of the Gulf of Kachchh. An assessment of probable impact of establishment of these refineries to the rich biodiversity of the Gulf and suggestions to minimise these impacts have been made in this paper....

76 FR 61695 - Gulf of Mexico Regional Ecosystem Restoration Strategy (Preliminary)

Science.gov (United States)

2011-10-05

... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-OA-2011-0798; FRL-9475-6] Gulf of Mexico Regional... of Availability. SUMMARY: This notice announces the availability of the Gulf of Mexico Regional... http://www.regulations.gov in the docket identified by Docket ID No. EPA-HQ-OA-2011-0798. President...

77 FR 59901 - Gulf of Mexico Fishery Management Council; Public Meeting

Science.gov (United States)

2012-10-01

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory Panel in conjunction with the Gulf States Marine Fisheries Commission's Law Enforcement Committee. DATES... meeting will be held at the Grand Hotel Marriott Resort, One Grand Boulevard, Point Clear, AL 36564...

Infectious Diseases - Diseases Related to Service in Gulf War, Iraq, and Afghanistan

Science.gov (United States)

... qualify for VA health care . Diseases related to Gulf War, Iraq and Afghanistan service VA presumes that the ... Southwest Asia theater of military operations during the Gulf War August 2, 1990 to present and in Afghanistan ...

75 FR 17755 - Certificate of Alternative Compliance for the Offshore Supply Vessel GULF TIGER

Science.gov (United States)

2010-04-07

... Compliance for the Offshore Supply Vessel GULF TIGER AGENCY: Coast Guard, DHS. ACTION: Notice. SUMMARY: The... vessel GULF TIGER as required by 33 U.S.C. 1605(c) and 33 CFR 81.18. DATES: The Certificate of Alternate... for the h offshore supply vessel GULF TIGER. Full compliance with 72 COLREGS and the Inland Rules Act...

Danish Gulf War Veterans Revisited: No Evidence of Increased Sickness Absence or Reduced Labor Market Outcome After Deployment to the Persian Gulf.

Science.gov (United States)

Nissen, Lars Ravnborg; Stoltenberg, Christian; Nielsen, Anni B Sternhagen; Vedtofte, Mia S; Marott, Jacob L; Gyntelberg, Finn; Guldager, Bernadette

2016-11-01

To examine the assumption that postdeployment incidence of sickness and other absence from work are higher among Gulf War Veterans compared with nonveterans. A prospective registry study including a cohort of 721 Danish Gulf War Veterans and a control cohort of 3,629 nonveterans selected from the general Danish population. Outcome measures were up to 23 years postdeployment incidence of (1) long-term sickness absence and (2) long-term all types of absence from work. Long term with regard to sickness and other absence was defined as exceeding 8 weeks. The association between outcomes and information on deployment history was studied using time-to-event analysis. The index date was the return date from the last deployment to the Gulf. The follow-up period was the time from index date until April 27, 2014. As the main finding, no difference was found between veterans and nonveterans in the incidence rate of long-term sickness absence. After an initial short period (3 months) with elevated incidence rate of long-term absence from work among veterans, there was no difference between the cohorts. Among Danish Gulf War Veterans, no postdeployment increased risk of long-term sickness absence or long-term absence from work was found as compared with nonveterans. Reprint & Copyright © 2016 Association of Military Surgeons of the U.S.

Geothermal Heat Flow in the Gulfs of California and Aden.

Science.gov (United States)

Von Herzen, R P

1963-06-14

Eighteen measurements in and near the gulfs of California and Aden indicate the geothermal flux is several times the world-wide mean of 1.2 x 10(-6) cal/cm(2) sec in both regions. Both gulfs closely coincide with the intersection of oceanic rises with continents and have likely been formed under tensional forces, which suggests an association with mantle convection currents.

75 FR 69921 - Gulf of Mexico Fishery Management Council; Public Meetings

Science.gov (United States)

2010-11-16

..., and the Essential Fish Habitat 5-Year Review Report. The Texas group is part of a three unit Habitat.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a public meeting of the Texas Habitat... FURTHER INFORMATION CONTACT: Jeff Rester, Habitat Support Specialist, Gulf States Marine Fisheries...

Assessment of biological effects of environmental pollution along the NW Mediterranean Sea using red mullets as sentinel organisms

Energy Technology Data Exchange (ETDEWEB)

Zorita, Izaskun; Ortiz-Zarragoitia, Maren; Apraiz, Itxaso; Cancio, Ibon; Orbea, Amaia; Soto, Manu; Marigomez, Ionan [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Universidad del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain); Cajaraville, Miren P. [Biologia Zelularra eta Histologia Laborategia, Zoologia eta Biologia Zelularra Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/Universidad del Pais Vasco, 644 P.K., E-48080 Bilbao, Basque Country (Spain)], E-mail: mirenp.cajaraville@ehu.es

2008-05-15

A biomonitoring program was carried out in spring and autumn in three pollution hot-spots and sensitive areas of the NW Mediterranean Sea using red mullets (Mullus barbatus) as sentinel organisms and a battery of biomarkers together with gonad histology. In fish from anthropogenic impacted areas (Fos-sur-mer, Cortiou, Arenzano, Delta of Ebro) lysosomal membrane destabilization occurred indicating disturbed health. There were no significant differences in metallothionein (MT) levels among stations. Peroxisomal acyl-CoA oxidase (AOX) activity was highest in fish from Cortiou. Both MT levels and AOX activities were significantly correlated with gamete development. Prevalence of melanomacrophage centers were high in Cortiou in all samplings and in Fos-sur-mer in September samplings. In conclusion, the application of a battery of biomarkers in red mullets provided relevant data for the assessment of environmental pollution in the NW Mediterranean Sea but also showed the difficulties of using native fish as sentinels. For future studies caging strategies are recommended. - Application of biomarkers in red mullets is promising to assess environmental pollution in the NW Mediterranean Sea.

Assessment of biological effects of environmental pollution along the NW Mediterranean Sea using red mullets as sentinel organisms

International Nuclear Information System (INIS)

Zorita, Izaskun; Ortiz-Zarragoitia, Maren; Apraiz, Itxaso; Cancio, Ibon; Orbea, Amaia; Soto, Manu; Marigomez, Ionan; Cajaraville, Miren P.

2008-01-01

A biomonitoring program was carried out in spring and autumn in three pollution hot-spots and sensitive areas of the NW Mediterranean Sea using red mullets (Mullus barbatus) as sentinel organisms and a battery of biomarkers together with gonad histology. In fish from anthropogenic impacted areas (Fos-sur-mer, Cortiou, Arenzano, Delta of Ebro) lysosomal membrane destabilization occurred indicating disturbed health. There were no significant differences in metallothionein (MT) levels among stations. Peroxisomal acyl-CoA oxidase (AOX) activity was highest in fish from Cortiou. Both MT levels and AOX activities were significantly correlated with gamete development. Prevalence of melanomacrophage centers were high in Cortiou in all samplings and in Fos-sur-mer in September samplings. In conclusion, the application of a battery of biomarkers in red mullets provided relevant data for the assessment of environmental pollution in the NW Mediterranean Sea but also showed the difficulties of using native fish as sentinels. For future studies caging strategies are recommended. - Application of biomarkers in red mullets is promising to assess environmental pollution in the NW Mediterranean Sea

Gulf War

DEFF Research Database (Denmark)

Dalgaard-Nielsen, Anja

2003-01-01

As it became a non‐permanent member of the UN Security Council in January 2003, Germany stepped up its opposition to war with Iraq. The stage was set for a repeat of Germany's uncomfortable position during the 1991 Gulf War. At that time, as most of Germany's allies rallied behind Washington......, Germany made only financial contributions, and hundreds of thousands of Germans took to the streets to protest against the war. Yet, since 1991, Germany had come a long way in its attitudes towards military force. From a policy of complete abstention from military deployments beyond NATO's area (so...

Surface circulation in the Gulf of Cadiz: Model and mean flow structure

Science.gov (United States)

Peliz, Alvaro; Dubert, Jesus; Marchesiello, Patrick; Teles-Machado, Ana

2007-11-01

The mean flow structure of the Gulf of Cadiz is studied using a numerical model. The model consists of a set of one-way nested configurations attaining resolutions on the order of 2.6 km in the region of the Gulf of Cadiz. In the large-scale configuration, the entrainment of the Mediterranean Water is parameterized implicitly through a nudging term. In medium- and small-scale nested configurations, the Mediterranean outflow is introduced explicitly. The model reproduces all the known features of the Azores Current and of the circulation inside the Gulf of Cadiz. A realistic Mediterranean Undercurrent is generated and Meddies develop at proper depths on the southwest tip of the Iberian slope. The hypothesis that the Azores Current may generate in association with the Mediterranean outflow (β-plume theories) is confirmed by the model results. The time-mean flow is dominated by a cyclonic cell generated in the gulf which expands westward and has transports ranging from 4 to 5 Sv. The connection between the cell and the Azores Current is analyzed. At the scale of the Gulf, the time-mean flow cell is composed by the westward Mediterranean Undercurrent, and by a counterflow running eastward over the outer edge of the Mediterranean Undercurrent deeper vein, as the latter is forced downslope. This counterflow feeds the entrainment at the depths of the Mediterranean Undercurrent and the Atlantic inflow at shallower levels. Coastward and upslope of this recirculation cell, a second current running equatorward all the way along the northern part of the gulf is revealed. This current is a very robust model result that promotes continuity between the southwestern Iberian coast and the Strait of Gibraltar, and helps explain many observations and recurrent SST features of the Gulf of Cadiz.

The Red Sea and Gulf of Aden Basins

Science.gov (United States)

Bosworth, William; Huchon, Philippe; McClay, Ken

2005-10-01

We here summarize the evolution of the greater Red Sea-Gulf of Aden rift system, which includes the Gulfs of Suez and Aqaba, the Red Sea and Gulf of Aden marine basins and their continental margins, and the Afar region. Plume related basaltic trap volcanism began in Ethiopia, NE Sudan (Derudeb), and SW Yemen at ˜31 Ma, followed by rhyolitic volcanism at ˜30 Ma. Volcanism thereafter spread northward to Harrats Sirat, Hadan, Ishara-Khirsat, and Ar Rahat in western Saudi Arabia. This early magmatism occurred without significant extension, and continued to ˜25 Ma. Much of the Red Sea and Gulf of Aden region was at or near sea level at this time. Starting between ˜29.9 and 28.7 Ma, marine syn-tectonic sediments were deposited on continental crust in the central Gulf of Aden. At the same time the Horn of Africa became emergent. By ˜27.5-23.8 Ma a small rift basin was forming in the Eritrean Red Sea. At approximately the same time (˜25 Ma), extension and rifting commenced within Afar itself. At ˜24 Ma, a new phase of volcanism, principally basaltic dikes but also layered gabbro and granophyre bodies, appeared nearly synchronously throughout the entire Red Sea, from Afar and Yemen to northern Egypt. This second phase of magmatism was accompanied in the Red Sea by strong rift-normal extension and deposition of syn-tectonic sediments, mostly of marine and marginal marine affinity. Sedimentary facies were laterally heterogeneous, being comprised of inter-fingering siliciclastics, evaporite, and carbonate. Throughout the Red Sea, the principal phase of rift shoulder uplift and rapid syn-rift subsidence followed shortly thereafter at ˜20 Ma. Water depths increased dramatically and sedimentation changed to predominantly Globigerina-rich marl and deepwater limestone. Within a few million years of its initiation in the mid-Oligocene the Gulf of Aden continental rift linked the Owen fracture zone (oceanic crust) with the Afar plume. The principal driving force for extension

Influence of monsoonal winds on chlorophyll-α distribution in the Beibu Gulf.

Directory of Open Access Journals (Sweden)

Chunyan Shen

Full Text Available The influence of seasonal, monsoonal winds on the temporal and spatial variability of chlorophyll-a (chl-a in the Beibu Gulf is studied based on long-term satellite data of sea surface winds, chl-a concentration and sea surface temperature (SST and in-situ observations for the years from 2002 to 2014. The analysis results indicated that under northeasterly monsoonal winds, chl-a concentrations were substantially elevated in most area of the Beibu Gulf, with a high chl-a concentration (>2 mg m-3 patch extending southwestward from the coastal water of the northeastern Gulf, consistent with the winter wind pattern. Meanwhile, the spatial distribution of high chl-a concentration is correlated with low SST in the northeastern Gulf. In the southern Gulf, there was generally low chl-a, except in the coastal waters southwest of Hainan Island. Here, the upwelling cold water prevails outside the mouth of the Beibu Gulf, driven by the southwesterly monsoonal winds and the runoff from the Changhua River, as implied by low observed SST. Correlation analysis indicated the chl-a concentration was strongly modulated by wind speed (r = 0.63, p0.7, p<0.001. Integrated analysis also showed that stratification is weak and mixing is strong in winter as affected by the high wind speed, which suggests that the wind-induced mixing is a dominant mechanism for entrainment of nutrients and the spatial distribution of chl-a in winter.

Gulf Canada's Russian joint venture

International Nuclear Information System (INIS)

Motyka, D.

1992-01-01

After three years of evaluating prospects and negotiating with government and industry representatives, Gulf Canada established its first joint venture in the Russian Federation with Komineft, a production association from the Komi autonomous republic. Komineft has a 50% share of the venture, and the rest is shared equally between Gulf and British Gas. The operating area is at the Vozey and Upper Vozey fields in the Timan-Pechora Basin, some 1,500 km northeast of Moscow just inside the Arctic Circle. An attractive feature of the Upper Vozey project is low development costs of ca $2/bbl. In the Vozey field, the venture will set up an enhanced oil recovery demonstration project to test techniques perfected in Alberta. About 60 Canadians are involved on the project, and headquarters are in Usinsk, ca 100 km south of the oil fields. In the first half of 1992, oil production in the first phase of the venture averaged around 10,000 bbl/d and continues to increase

Environmental emergency in Persian Gulf

International Nuclear Information System (INIS)

Zanini, G.

1991-01-01

This paper gives an environmental damage report for the Kuwait-Persian Gulf area that has been affected by the Gulf War oil well fires and the release of oil into the sea. The report was prepared by members of an ENEA (Italian Commission for New Technologies, Energy and the Environment)/Friends of the Earth scientific mission whose aim was to assess the damage to terrestrial and aquatic ecosystems and to develop short and long terms programs of damage containment and environmental restoration. With regard to shore-line clean-up operations, the mission noted the scarce use of manpower, 500 versus 11,000 for the Exxon Valdez spill. Seventy-five per cent of the surface of Kuwait has been covered with a fine spray of petroleum and ashes borne by turbulent winds. Efforts are being made to establish a climate model, which would take into account the effects of the altered environmental conditions, to forecast the local transport of the pollutants

Alaska, Gulf spills share similarities

International Nuclear Information System (INIS)

Usher, D.

1991-01-01

The accidental Exxon Valdez oil spill in Alaska and the deliberate dumping of crude oil into the Persian Gulf as a tactic of war contain both glaring differences and surprising similarities. Public reaction and public response was much greater to the Exxon Valdez spill in pristine Prince William Sound than to the war-related tragedy in the Persian Gulf. More than 12,000 workers helped in the Alaskan cleanup; only 350 have been involved in Kuwait. But in both instances, environmental damages appear to be less than anticipated. Natures highly effective self-cleansing action is primarily responsible for minimizing the damages. One positive action growing out of the two incidents is increased international cooperation and participation in oil-spill clean-up efforts. In 1990, in the aftermath of the Exxon Valdez spill, 94 nations signed an international accord on cooperation in future spills. The spills can be historic environmental landmarks leading to creation of more sophisticated response systems worldwide

Patterns of Illness and Care Before Deployment to the Persian Gulf War

National Research Council Canada - National Science Library

Miller, Richard

2001-01-01

...) Comprehensive Clinical Evaluation Program (CCEP) upon returning from the Persian Gulf War have patterns of illness and medical care seeking during the year prior to deployment to the Persian Gulf that differ from those of comparison groups of Army...

Patterns of Illness and Care Before Deployment to the Persian Gulf War

National Research Council Canada - National Science Library

Miller, Richard

2002-01-01

...) Comprehensive Clinical Evaluation Program (CCEP) upon returning from the Persian Gulf War have patterns of illness and medical care seeking during the year prior to deployment to the Persian Gulf that differ from those of comparison groups of Army...

Blood Biomarkers of Chronic Inflammation in Gulf War Illness.

Directory of Open Access Journals (Sweden)

Gerhard J Johnson

Full Text Available More than twenty years following the end of the 1990-1991 Gulf War it is estimated that approximately 300,000 veterans of this conflict suffer from an unexplained chronic, multi-system disorder known as Gulf War Illness (GWI. The etiology of GWI may be exposure to chemical toxins, but it remains only partially defined, and its case definition is based only on symptoms. Objective criteria for the diagnosis of GWI are urgently needed for diagnosis and therapeutic research.This study was designed to determine if blood biomarkers could provide objective criteria to assist diagnosis of GWI.A surveillance study of 85 Gulf War Veteran volunteers identified from the Department of Veterans Affairs Minnesota Gulf War registry was performed. All subjects were deployed to the Gulf War. Fifty seven subjects had GWI defined by CDC criteria, and 28 did not have symptomatic criteria for a diagnosis of GWI. Statistical analyses were performed on peripheral blood counts and assays of 61 plasma proteins using the Mann-Whitney rank sum test to compare biomarker distributions and stepwise logistic regression to formulate a diagnostic model.Lymphocyte, monocyte, neutrophil, and platelet counts were higher in GWI subjects. Six serum proteins associated with inflammation were significantly different in GWI subjects. A diagnostic model of three biomarkers-lymphocytes, monocytes, and C reactive protein-had a predicted probability of 90% (CI 76-90% for diagnosing GWI when the probability of having GWI was above 70%.The results of the current study indicate that inflammation is a component of the pathobiology of GWI. Analysis of the data resulted in a model utilizing three readily measurable biomarkers that appears to significantly augment the symptom-based case definition of GWI. These new observations are highly relevant to the diagnosis of GWI, and to therapeutic trials.

Why is Improving Water Quality in the Gulf of Mexico so Critical?

Science.gov (United States)

The EPA regional offices and the Gulf of Mexico Program work with Gulf States to continue to maximize the efficiency and utility of water quality monitoring efforts for local managers by coordinating and standardizing state and federal water quality data

Effectiveness of Acupuncture in the Treatment of Gulf War Illness

Science.gov (United States)

2013-01-01

325. 7 Wigers SH, Stiles TC, Vogael PA. Effects of aerobic exercise versus stress management treatment in fibromyalgia : a 4.5 year prospective study... Treatment of Gulf War Illness PRINCIPAL INVESTIGATOR: Lisa Conboy, M.A., M.S., ScD...December 2012 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Effectiveness of Acupuncture in the Treatment of Gulf War Illness 5b. GRANT NUMBER W81XWH

The consequences and hazards of depleted uranium weapons used by US army since gulf war

International Nuclear Information System (INIS)

Mao Yongze

1999-01-01

Military equipment and development of depleted uranium weapon in USA, the depleted uranium weapon used in gulf war by USA army, personnel irradiation in the gulf war, and the protection in the gulf war are introduced. The radioactivity, radioactive characteristics, chemical toxicity and hazard of the depleted uranium are also introduced

Heavy metal, trace element and petroleum hydrocarbon pollution in the Arabian Gulf: Review

OpenAIRE

Afnan Mahmood Freije

2015-01-01

The Arabian Gulf environmental status was assessed based on studies conducted in Bahrain, Kuwait, Oman, Saudi Arabia, Qatar, and United Arab Emirates (UAE) during 1983–2011. This review examines all sorts of pollutions in the Arabian Gulf area over the last three decades. Approximately 50 published studies were reviewed in order to determine the pollution status in the Arabian Gulf regarding heavy metals and organic substances. Three types of environmental pollutions including marine and coas...

78 FR 69803 - Drawbridge Operation Regulations; Gulf Intracoastal Waterway, Venice, FL

Science.gov (United States)

2013-11-21

...-AA09 Drawbridge Operation Regulations; Gulf Intracoastal Waterway, Venice, FL AGENCY: Coast Guard, DHS... that governs the Hatchett Creek (US-41) Twin Bridges, Gulf Intracoastal Waterway mile 56.9, Venice, FL... mile 56.9 at Venice, FL as listed in Sec. 117.287(b), provides the draw of the Hatchett Creek (US-41...

Short- and Long-Term Dynamics of Gas Hydrate at GC600: A Gulf of Mexico Hydrocarbon Seep

Science.gov (United States)

MacDonald, I. R.; Johansen, C.; Silva, M.; Daneshgar, S.; Garcia-Pineda, O. G.; Shedd, W. W.

2014-12-01

The GC600 hydrocarbon seep is located at 1200 m in the northern Gulf of Mexico (GOM). Satellite data show it to be one of the most prolific sources of natural oil slicks in the entire GOM. We mapped its seafloor oil and gas vents with 3-D seismic, swath-bathymetry acoustics and submersible observations, documenting gas hydrate deposits, brine pools, benthic fauna, and authigenic carbonates. Geophysical profiles show subbottom locations of salt bodies and migration conduits. We deployed time-lapse imaging systems focused on individual vents to quantify release rates. Oil and gas flow upward along the flanks of an allochthonous salt body from source rocks at 10,000 m and migrate to the seafloor from faults emanating from the salt. Venting to the water column and surface consists of oily bubbles and occurs in two fields separated by ~1 km. The NW vent field (Megaplume) appears to be a more recent expression and hosts about three highly active vents; while the SE vent field (Birthday Candles) hosts more than 10 vents that are generally slower. We measured discharge rates of 2.6 cm3 s-1 and Megaplume and 0.09 cm3 s-1 at Birthday Candles. Although surface deposits of gas hydrate were evident at both vent fields, the Birthday Candles area featured dozens of conical mounds formed by gas hydrate that were dark brown due to large amounts of liquid oil perfused throughout the deposits. Large brine pools indicated gas hydrate formation at the seafloor. Venting occurred in horizontal fissures on the mounds, in which oil and hydrate combined to form short-lived chimneys and balloon-like structures. Ice worms (Hesiocaeca methanicola) were extremely abundant in burrows extending from the sediment into the gas hydrate. Proceeding farther to the SE, venting is reduced and absent, but surface carbonate deposits suggest relict gas hydrate mounds. We propose that the NW to SE trend at GC600 encompasses the progressive development of a biogeochemical filter that sequesters and

Survey to assess Persian Gulf spill effects

International Nuclear Information System (INIS)

Anon.

1992-01-01

This paper reports that an international group is poised for an extensive survey of the Persian Gulf, including an assessment of the long term effects of last year's oil spill, a legacy of the Persian Gulf war. Saudi Arabia plans a $450 million cleanup program on beaches fouled by the massive spill. Plans for the survey were disclosed by the United National Educational, Scientific and Cultural Organization (Unesco). It is to be carried out under the auspices of the Regional Organization for the Protection of the Marine Environment (Ropme), Unesco's Intergovernmental Oceanographic Commission, and the U.S. National Oceanic and Atmospheric Administration. Ropme member countries are Bahrain, Iran, Iraq, Kuwait, Qatar, Saudi Arabia, and the United Arab Emirates

On depleted uranium: gulf war and Balkan syndrome.

Science.gov (United States)

Duraković, A

2001-04-01

The complex clinical symptomatology of chronic illnesses, commonly described as Gulf War Syndrome, remains a poorly understood disease entity with diversified theories of its etiology and pathogenesis. Several causative factors have been postulated, with a particular emphasis on low level chemical warfare agents, oil fires, multiple vaccines, desert sand (Al-Eskan disease), botulism, Aspergillus flavus, Mycoplasma, aflatoxins, and others, contributing to the broad scope of clinical manifestations. Among several hundred thousand veterans deployed in the Operation Desert Storm, 15-20% have reported sick and about 25,000 died. Depleted uranium (DU), a low-level radioactive waste product of the enrichment of natural uranium with U-235 for the reactor fuel or nuclear weapons, has been considered a possible causative agent in the genesis of Gulf War Syndrome. It was used in the Gulf and Balkan wars as an armor-penetrating ammunition. In the operation Desert Storm, over 350 metric tons of DU was used, with an estimate of 3-6 million grams released in the atmosphere. Internal contamination with inhaled DU has been demonstrated by the elevated excretion of uranium isotopes in the urine of the exposed veterans 10 years after the Gulf war and causes concern because of its chemical and radiological toxicity and mutagenic and carcinogenic properties. Polarized views of different interest groups maintain an area of sustained controversy more in the environment of the public media than in the scientific community, partly for the reason of being less than sufficiently addressed by a meaningful objective interdisciplinary research.

Functional composition of Chaetodon butterflyfishes at a peripheral and extreme coral reef location, the Persian Gulf

KAUST Repository

Pratchett, Morgan S.; Hoey, Andrew; Feary, David A.; Bauman, Andrew G.; Burt, John A.; Riegl, Bernhard M.

2013-01-01

composition of butterflyfishes in the Persian Gulf, Musandam Peninsula, and Gulf of Oman. Only five species of butterflyfishes were recorded during this study, and mostly just in the Gulf of Oman. Unlike most locations in the Indo-Pacific where butterflyfish

Gulf of Mexico Ecosystem Status Report

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Gulf of Mexico is one of the most ecologically and economically valuable marine ecosystems in the world and is affected by a variety of natural and anthropogenic...

Treating Gulf War Illness with Novel Anti-Inflammatories: A Screening of Botantical Microglia Modulators

Science.gov (United States)

2016-10-01

AWARD NUMBER: W81XWH-14-1-0623 TITLE: Treating Gulf War Illness with Novel Anti-Inflammatories: A Screening of Botantical Microglia Modulators...Report 3. DATES COVERED 30 Sep 2015 - 29 Sep 2016 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Treating Gulf War Illness with Novel Anti...SUBJECT TERMS Gulf War Illness, botanical, anti-inflammatory, biomarker, microglia, improvement, treatment 16. SECURITY CLASSIFICATION OF: 17

Simulation study on discrete charge effects of SiNW biosensors according to bound target position using a 3D TCAD simulator.

Science.gov (United States)

Chung, In-Young; Jang, Hyeri; Lee, Jieun; Moon, Hyunggeun; Seo, Sung Min; Kim, Dae Hwan

2012-02-17

We introduce a simulation method for the biosensor environment which treats the semiconductor and the electrolyte region together, using the well-established semiconductor 3D TCAD simulator tool. Using this simulation method, we conduct electrostatic simulations of SiNW biosensors with a more realistic target charge model where the target is described as a charged cube, randomly located across the nanowire surface, and analyze the Coulomb effect on the SiNW FET according to the position and distribution of the target charges. The simulation results show the considerable variation in the SiNW current according to the bound target positions, and also the dependence of conductance modulation on the polarity of target charges. This simulation method and the results can be utilized for analysis of the properties and behavior of the biosensor device, such as the sensing limit or the sensing resolution.

Simulation study on discrete charge effects of SiNW biosensors according to bound target position using a 3D TCAD simulator

International Nuclear Information System (INIS)

Chung, In-Young; Moon, Hyunggeun; Jang, Hyeri; Lee, Jieun; Kim, Dae Hwan; Seo, Sung Min

2012-01-01

We introduce a simulation method for the biosensor environment which treats the semiconductor and the electrolyte region together, using the well-established semiconductor 3D TCAD simulator tool. Using this simulation method, we conduct electrostatic simulations of SiNW biosensors with a more realistic target charge model where the target is described as a charged cube, randomly located across the nanowire surface, and analyze the Coulomb effect on the SiNW FET according to the position and distribution of the target charges. The simulation results show the considerable variation in the SiNW current according to the bound target positions, and also the dependence of conductance modulation on the polarity of target charges. This simulation method and the results can be utilized for analysis of the properties and behavior of the biosensor device, such as the sensing limit or the sensing resolution. (paper)

Strontium-90 in the western Gulf of Mexico

International Nuclear Information System (INIS)

Payton, P.H.; Hild, S.B.; Oertti, C.U.; Suttle, A.D. Jr.

1977-01-01

The results of measurements of 90 Sr in water, coral, hermit crabs and molluscs from the western Gulf of Mexico and in fresh water molluscs from Canyon Lake, Texas are reported. Preparation of samples for measurement in the anticoincidence mode in a lead shielded flow proportional counter is described. The measured value of 0.095 +- 0.003 pCi/litre for Gulf water is in accord with literature values. Concentration factors for 90 Sr are apparently 1 for coral. The activity incorporated into shells normalized to calcium content, decreases from Galveston to Campeche Bay. (U.K.)

Hydrocarbon distributions in sediments of the open area of the Arabian Gulf following the 1991 Gulf War oil spill

International Nuclear Information System (INIS)

Al-Lihaibi, S.S.; Ghazi, S.J.

1997-01-01

Surface sediments collected from the open area of the Arabian Gulf were analysed for total petroleum hydrocarbons and specific aliphatic hydrocarbon components in order to provide information on the extent of oil contamination and the degree of weathering of the spilled oil following the Gulf War. The surface distribution of the petroleum hydrocarbons showed an increasing trend towards the north-east, and among the individual transects there was a pronounced increasing trend towards the north-west direction. Despite off-shore oil-related activities as well as a potential impact from the 1991 oil spill, the concentrations of petroleum hydrocarbons in the study area were relatively low. This finding may be attributed to the effectiveness of weathering processes. (author)

Quality-intensity relationships of phosphorus in some soils from NW India

International Nuclear Information System (INIS)

Vig, A.C.; Dev, G.

1975-01-01

In a laboratory investigation, Q/I relationship of soil phosphorus in soils derived from four different agroclimatic regions of N.W. India have been worked out on the basis of adsorption studies, involving the use of radioactive phosphorus. These two parameters are related to each other by a Langmuir-like equation. The results indicate that for supply of P, the soils fall in the decreasing order of: Dalhousie, Ludhiana, Gurudaspur, Palampur. (author)

Numerical modelling of tides and tidal currents in the Gulf of Kutch

Digital Repository Service at National Institute of Oceanography (India)

Unnikrishnan, A.S.

An application of a two-dimensional tidal model to study the tidal regime in the Gulf of Kutch is made. This is with a view to synthesise various information on tides and currents that are available in the Gulf. A comparison of surface elevations...

Oil Reserves and Production in the Gulf with Special Reference to Qatar

International Nuclear Information System (INIS)

Ibrahim, Ismail.

1998-01-01

Oil and natural gas potential of the Gulf Arab Countries is substantial. The proven oil reserves of these countries constitute 55% of total world proven oil reserves. The Gulf Arab Countries possess 576 billion barrels of proven crude oil reserves, as compared to total world proven oil reserves of around 1047. Natural gas resources are also plentiful in the Gulf Arab Countries. Proven natural gas reserves were estimated at around 26 trillion cubic metres, at the beginning of 1997. This figure represents around 17% of total world proven natural gas reserves of around 153 trillion cubic metres

Evidence of endocrine alteration in the red mullet, Mullus barbatus from the NW Mediterranean

International Nuclear Information System (INIS)

Martin-Skilton, Rebeca; Lavado, Ramon; Thibaut, Remi; Minier, Christophe; Porte, Cinta

2006-01-01

Red mullet (Mullus barbatus) were collected from different sampling sites (NW Mediterranean) in spring and autumn, with the aim of assessing potential alterations of the endocrine system. Alkylphenols were measured in fish bile as an indicator of estrogenic exposure. Key enzymatic activities involved in both synthesis (ovarian 17β-hydroxysteroid dehydrogenases and P450 aromatase) and metabolism of steroids were assessed together with histological alterations of the gonads. During the spring sampling, delayed gamete maturation, intersexuality, fibrosis, and depressed ovarian P450 aromatase activity were observed in organisms from the most polluted sites. During the autumn sampling, those effects were less evident, indicating that fish might be more susceptible to endocrine disrupting chemicals during the reproductive period. Nonetheless, enhanced glucuronidation of testosterone and estradiol was observed. Overall, this work provides first evidences of significant alterations in the endocrine system of red mullet from highly impacted areas in the NW Mediterranean. - Red mullet may be more susceptible to endocrine disruptors during the reproductive period

Evidence of endocrine alteration in the red mullet, Mullus barbatus from the NW Mediterranean

Energy Technology Data Exchange (ETDEWEB)

Martin-Skilton, Rebeca [Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18, 08034 Barcelona (Spain); Lavado, Ramon [Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18, 08034 Barcelona (Spain); Thibaut, Remi [Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18, 08034 Barcelona (Spain); Minier, Christophe [Laboratoire d' Ecotoxicologie, Universite du Havre, 25 rue Philippe Lebon, B.P. 540, F-76058 Le Havre (France); Porte, Cinta [Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18, 08034 Barcelona (Spain)]. E-mail: cpvqam@cid.csic.es

2006-05-15

Red mullet (Mullus barbatus) were collected from different sampling sites (NW Mediterranean) in spring and autumn, with the aim of assessing potential alterations of the endocrine system. Alkylphenols were measured in fish bile as an indicator of estrogenic exposure. Key enzymatic activities involved in both synthesis (ovarian 17{beta}-hydroxysteroid dehydrogenases and P450 aromatase) and metabolism of steroids were assessed together with histological alterations of the gonads. During the spring sampling, delayed gamete maturation, intersexuality, fibrosis, and depressed ovarian P450 aromatase activity were observed in organisms from the most polluted sites. During the autumn sampling, those effects were less evident, indicating that fish might be more susceptible to endocrine disrupting chemicals during the reproductive period. Nonetheless, enhanced glucuronidation of testosterone and estradiol was observed. Overall, this work provides first evidences of significant alterations in the endocrine system of red mullet from highly impacted areas in the NW Mediterranean. - Red mullet may be more susceptible to endocrine disruptors during the reproductive period.

Integrated geophysical and geological study and petroleum appraisal of Cretaceous plays in the Western Gulf of Gabes, Tunisia

Science.gov (United States)

Dkhaili, Noomen; Bey, Saloua; El Abed, Mahmoud; Gasmi, Mohamed; Inoubli, Mohamed Hedi

2015-09-01

An integrated study of available seismic and calibrated wells has been conducted in order to ascertain the structural development and petroleum potential of the Cretaceous Formations of the Western Gulf of Gabes. This study has resulted in an understanding of the controls of deep seated Tethyan tectonic lineaments by analysis of the Cretaceous deposits distribution. Three main unconformities have been identified in this area, unconformity U1 between the Jurassic and Cretaceous series, unconformity U2 separating Early from Late Cretaceous and known as the Austrian unconformity and the major unconformity U3 separating Cretaceous from Tertiary series. The seismic analysis and interpretation have confirmed the existence of several features dominated by an NE-SW extensive tectonic regime evidenced by deep listric faults, asymmetric horst and graben and tilted blocks structures. Indeed, the structural mapping of these unconformities, displays the presence of dominant NW-SE fault system (N140 to N160) bounding a large number of moderate sized basins. A strong inversion event related to the unconformity U3 can be demonstrated by the mapping of the unconformities consequence of the succession of several tectonic manifestations during the Cretaceous and post-Cretaceous periods. These tectonic events have resulted in the development of structural and stratigraphic traps further to the porosity and permeability enhancement of Cretaceous reservoirs.

Effect of Graphene-EC on Ag NW-Based Transparent Film Heaters: Optimizing the Stability and Heat Dispersion of Films.

Science.gov (United States)

Cao, Minghui; Wang, Minqiang; Li, Le; Qiu, Hengwei; Yang, Zhi

2018-01-10

To optimize the performance of silver nanowire (Ag NW) film heaters and explore the effect of graphene on a film, we introduced poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) and graphene modified with ethyl cellulose (graphene-EC) into the film. The high-quality and well-dispersed graphene-EC was synthesized from graphene obtained by electrochemical exfoliation as a precursor. The transparent film heaters were fabricated via spin-coating. With the assistance of graphene-EC, the stability of film heaters was greatly improved, and the conductivity was optimized by adjusting the Ag NW concentration. The film heaters exhibited a fast and accurate response to voltage, accompanied by excellent environmental endurance, and there was no significant performance degradation after being operated for a long period of time. These results indicate that graphene-EC plays a crucial role in optimizing film stability and heat dispersion in the film. The Ag NW/PEDOT:PSS-doped graphene-EC film heaters show a great potential in low-cost indium-tin-oxide-free flexible transparent electrodes, heating systems, and transparent film heaters.

Critical research needs for identifying future changes in Gulf coral reef ecosystems

KAUST Repository

Feary, David A.

2013-07-01

Expert opinion was assessed to identify current knowledge gaps in determining future changes in Arabian/Persian Gulf (thereafter \\'Gulf\\') coral reefs. Thirty-one participants submitted 71 research questions that were peer-assessed in terms of scientific importance (i.e., filled a knowledge gap and was a research priority) and efficiency in resource use (i.e., was highly feasible and ecologically broad). Ten research questions, in six major research areas, were highly important for both understanding Gulf coral reef ecosystems and also an efficient use of limited research resources. These questions mirrored global evaluations of the importance of understanding and evaluating biodiversity, determining the potential impacts of climate change, the role of anthropogenic impacts in structuring coral reef communities, and economically evaluating coral reef communities. These questions provide guidance for future research on coral reef ecosystems within the Gulf, and enhance the potential for assessment and management of future changes in this globally significant region. © 2013 Elsevier Ltd.

Thermocline Regulated Seasonal Evolution of Surface Chlorophyll in the Gulf of Aden

KAUST Repository

Hoteit, Ibrahim

2015-04-01

The Gulf of Aden, although subject to seasonally reversing monsoonal winds, has been previously reported as an oligotrophic basin during summer, with elevated chlorophyll concentrations only occurring during winter due to convective mixing. However, the Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) ocean color data reveal that the Gulf of Aden also exhibits a prominent summer chlorophyll bloom and sustains elevated chlorophyll concentrations throughout the fall, and is a biophysical province distinct from the adjacent Arabian Sea. Climatological hydrographic data suggest that the thermocline, hence the nutricline, in the entire gulf is markedly shoaled by the southwest monsoon during summer and fall. Under this condition, cyclonic eddies in the gulf can effectively pump deep nutrients to the surface layer and lead to the chlorophyll bloom in late summer, and, after the transition to the northeast monsoon in fall, coastal upwelling driven by the northeasterly winds produces a pronounced increase in surface chlorophyll concentrations along the Somali coast.

Thermocline Regulated Seasonal Evolution of Surface Chlorophyll in the Gulf of Aden

KAUST Repository

Yao, Fengchao

2015-03-19

The Gulf of Aden, although subject to seasonally reversing monsoonal winds, has been previously reported as an oligotrophic basin during summer, with elevated chlorophyll concentrations only occurring during winter due to convective mixing. However, the Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) ocean color data reveal that the Gulf of Aden also exhibits a prominent summer chlorophyll bloom and sustains elevated chlorophyll concentrations throughout the fall, and is a biophysical province distinct from the adjacent Arabian Sea. Climatological hydrographic data suggest that the thermocline, hence the nutricline, in the entire gulf is markedly shoaled by the southwest monsoon during summer and fall. Under this condition, cyclonic eddies in the gulf can effectively pump deep nutrients to the surface layer and lead to the chlorophyll bloom in late summer, and, after the transition to the northeast monsoon in fall, coastal upwelling driven by the northeasterly winds produces a pronounced increase in surface chlorophyll concentrations along the Somali coast. © 2015 Yao, Hoteit.

Mangrove diversity in the Serewe Gulf of Lombok Island West Nusa Tenggara

Science.gov (United States)

Irwansah, Sugiyarto, Mahajoeno, Edwi

2017-08-01

Mangrove forests are a valuable economic resource as important breeding grounds and nursery sites for various animal species, stabilizing coastal lands and offering protection against storms, tsunamis, and sea level rise. Mangrove forest growing along the coastline of Serewe Gulf. The Serewe Gulf has great potential in tourism and sea cultivation sector. The research was conducted in the Serewe Gulf of Lombok Island, West Nusa Tenggara for 2 months (November up to December 2016). The objective of this research is to determine the diversity of mangrove in the Serewe Gulf, Lombok Island, West Nusa Tenggara using belt transect method. The identification result shows that there are 9 families with 9 types such as Rhizophoraceae (Rhizophora mucronata), Avicenniaceae (Avicennia officinalis), Sonneratiaceae (Sonneratia alba), Casuarinaceae (Casuarina equisetifolia), Bignoniaceae (Dilochnadrone sthaceae), Malvaceae (Hibiscus tiliaceus), Lythraceae (Pemphis adicula), Aizoaceae (Sesivium portulacastrum), and Euphorbiaceae (Ricinus communis). The diversity of mangrove types in the research area is in medium rate with H' index of 1.668.

Critical research needs for identifying future changes in Gulf coral reef ecosystems

KAUST Repository

Feary, David A.; Burt, John A.; Bauman, Andrew G.; Al Hazeem, Shaker; Abdel-Moati, Mohamed A R; Al-Khalifa, Khalifa A.; Anderson, Donald M.; Amos, Carl L.; Baker, Andrew C.; Bartholomew, Aaron; Bento, Rita; Cavalcante, Geó rgenes H.; Chen, Chaolun Allen; Coles, Steve L.; Dab, Koosha; Fowler, Ashley M.; George, David Glen; Grandcourt, Edwin Mark; Hill, Ross; John, David Michael; Jones, David Alan; Keshavmurthy, Shashank; Mahmoud, Huda M A; Moradi Och Tapeh, Mahdi; Mostafavi, Pargol Ghavam; Naser, Humood A.; Pichon, Michel; Purkis, Sam J.; Riegl, Bernhard M.; Samimi-Namin, Kaveh; Sheppard, Charles R C; Vajed Samiei, Jahangir; Voolstra, Christian R.; Wiedenmann, Jö rg

2013-01-01

Expert opinion was assessed to identify current knowledge gaps in determining future changes in Arabian/Persian Gulf (thereafter 'Gulf') coral reefs. Thirty-one participants submitted 71 research questions that were peer-assessed in terms of scientific importance (i.e., filled a knowledge gap and was a research priority) and efficiency in resource use (i.e., was highly feasible and ecologically broad). Ten research questions, in six major research areas, were highly important for both understanding Gulf coral reef ecosystems and also an efficient use of limited research resources. These questions mirrored global evaluations of the importance of understanding and evaluating biodiversity, determining the potential impacts of climate change, the role of anthropogenic impacts in structuring coral reef communities, and economically evaluating coral reef communities. These questions provide guidance for future research on coral reef ecosystems within the Gulf, and enhance the potential for assessment and management of future changes in this globally significant region. © 2013 Elsevier Ltd.

Anticancer and cytotoxic compounds from seashells of the Persian Gulf

Directory of Open Access Journals (Sweden)

Iraj Nabipour

2009-12-01

Full Text Available Background: Pre-clinical studies for isolation and purification of marine compounds continued at an active pace since the last decade. Today, more than 60% of the anticancer drugs commercially available are of naturally origin thus the sea is a very favorable bed for the discovery of novel anticancer agents. Methods: A total of known 611 seashells species in the Persian Gulf were investigated for synonymy in OBIS database. Then, all the species, including their synonymy were searched in PubMed databse to find their isolated bioactive agents. Results: From 611 known seashells in the Persian Gulf, 172 genera/species had bioactive compounds. Anticancer agents were isolated and purified for 8 genera. These compounds had various structures they were polypeptide, polysaccharide, glycoprotein, alkaloid, cerebroside, and cembranoid which had different mechanism of actions including induction of apoptosis, destroying the skeletal structures of the cells, immune bioactivity and inhibition of topoisomerase I. Spisulosine is the only anticancer agent which is currently under clinical trial. Conclusions: Although, the known seashells from the Persian Gulf have potential anticancer and cytotoxic compounds but a very few investigations had been reported. Further investigations for isolation and purification on bioactive compounds from seashells of the Persian Gulf is recommended.

A 1.1nW Energy Harvesting System with 544pW Quiescent Power for Next Generation Implants.

Science.gov (United States)

Bandyopadhyay, Saurav; Mercier, Patrick P; Lysaght, Andrew C; Stankovic, Konstantina M; Chandrakasan, Anantha P

2014-12-01

This paper presents a nW power management unit (PMU) for an autonomous wireless sensor that sustains itself by harvesting energy from the endocochlear potential (EP), the 70-100 mV electrochemical bio-potential inside the mammalian ear. Due to the anatomical constraints inside the inner ear, the total extractable power from the EP is limited to 1.1-6.25 nW. A nW boost converter is used to increase the input voltage (30-55 mV) to a higher voltage (0.8 to 1.1 V) usable by CMOS circuits in the sensor. A pW Charge Pump circuit is used to minimize the leakage in the boost converter. Further, ultra-low-power control circuits consisting of digital implementations of input impedance adjustment circuits and Zero Current Switching circuits along with Timer and Reference circuits keep the quiescent power of the PMU down to 544 pW. The designed boost converter achieves a peak power conversion efficiency of 56%. The PMU can sustain itself and a duty-cyled ultra-low power load while extracting power from the EP of a live guinea pig. The PMU circuits have been implemented on a 0.18µm CMOS process.

Shuttles set for US Gulf lift off

Energy Technology Data Exchange (ETDEWEB)

DeLuca, Marshall

2002-09-01

The author reports on discussions with two US companies about plans for using shuttle tankers to transport oil from platforms in the Gulf of Mexico to US ports as an alternative to pipeline networks. This follows approval by the US Minerals Management Service for FPSOs in the Gulf. The companies are American Shuttle Tankers and Conoco-owned Seahorse Shuttling and Technology. Because the vessels will enter US ports and operate in US waters, they must conform with the US Jones Act: they must be US-built, US-flagged and manned by US crews. They must also be double-hulled. This increases cost and reduces market opportunities for the vessels outside the US. The article also considers the use of articulated tug barges as another option. (UK)

Gulf of Mexico forecasts : the dead sea

International Nuclear Information System (INIS)

Good Abbott, C.

1999-01-01

The future gas supply potential from the offshore Gulf of Mexico region was discussed with particular emphasis on the issue of whether there is enough growth potential to satisfy the anticipated growth in power generation markets. In 1980, a forecasted decrease in gas supply proved to be wrong. In fact, supply actually increased and productivity in the Gulf of Mexico has been relatively stable since 1982. A significant growth has been forecasted for 1997 to 2010. This growth will coincide with a large growth in gas demand in the northeastern U.S. The fact that electric power generation is changing hands adds to the opportunities in the northeast. It was emphasized that Canadian supply must be present to compete. 1 tab., 16 figs

Barotropic Eulerian residual circulation in the Gulf of California due to the M{sub 2} tide and wind stress

Energy Technology Data Exchange (ETDEWEB)

Argote, M. L.; Lavin, M. F.; Amador, A. [Departamento de Oceanografia Fisica, CICESE, Ensenada, Baja California (Mexico)

1998-07-01

A vertically integrated, non-linear numerical model in finite differences is used to analyze two forcing mechanisms of the mean barotropic circulation in the Gulf of California: topographic rectification due to tidal currents (M{sub 2}) and wind stress. Under tidal forcing the nonlinearities of the momentum equations induce unorganized strong tidal induced residual currents (u{sub e} > 5 cm s{sup -}1) in the channels between the islands, and along-isobath anticyclonic circulation in the Northern Gulf, with speeds u{sub 3} < 2.5 cm s{sup -}1 over the edge of Delfin Basin. These numerical results are in agreement with analytical results, which indicate that the tidal-induced currents are mostly due to the advective terms, and that continuity and the Coriolis term (but regulated by bottom friction) are responsible for the along-isobath flow. The quadratic bottom friction plays a role in generating mean currents only in the very shallow area off the Colorado River Delta. The effect of wind stress was modeled by imposing upon the running M{sub 2} model a constant surface stress ( r = 0.016 Pa), from the NW for winter conditions and from the SE for summer conditions. The wind-induced circulation was obtained by averaging over a tidal cycle and then subtracting the tidal residuals. The two wind directions produce almost identical circulation patterns, but with opposite directions. For the NW wind stress, the main features of the predicted circulation are: (a) In the Northern Gulf an anticyclonic circulation pattern, with the strongest currents (up to {approx} 10 cm s-1) following the bathymetry of the rim of Delfin Basin, Wagner Basin and the mainland coast off Bahia Adair and Bahia San Jorge. There is also a southward flow along the peninsula coast, from the Colorado River to Bahia San Luis Gonzaga. (b) In the Southern Gulf, there is a strong flow ({approx} 10 to 15 cm s{sup -}1) to the SE over the continental shelf along the mainland coast. A somewhat less well

Cesium, iodine and tritium in NW Pacific waters - a comparison of the Fukushima impact with global fallout

Science.gov (United States)

Povinec, P. P.; Aoyama, M.; Biddulph, D.; Breier, R.; Buesseler, K.; Chang, C. C.; Golser, R.; Hou, X. L.; Ješkovský, M.; Jull, A. J. T.; Kaizer, J.; Nakano, M.; Nies, H.; Palcsu, L.; Papp, L.; Pham, M. K.; Steier, P.; Zhang, L. Y.

2013-08-01

Radionuclide impact of the Fukushima Dai-ichi nuclear power plant accident on the distribution of radionuclides in seawater of the NW Pacific Ocean is compared with global fallout from atmospheric tests of nuclear weapons. Surface and water column samples collected during the Ka'imikai-o-Kanaloa (KOK) international expedition carried out in June 2011 were analyzed for 134Cs, 137Cs, 129I and 3H. The 137Cs, 129I and 3H levels in surface seawater offshore Fukushima varied between 0.002-3.5 Bq L-1, 0.01-0.8 μBq L-1, and 0.05-0.15 Bq L-1, respectively. At the sampling site about 40 km from the coast, where all three radionuclides were analyzed, the Fukushima impact on the levels of these three radionuclides represents an increase above the global fallout background by factors of about 1000, 50 and 3, respectively. The water column data indicate that the transport of Fukushima-derived radionuclides downward to the depth of 300 m has already occurred. The observed 137Cs levels in surface waters and in the water column are compared with predictions obtained from the ocean general circulation model, which indicates that the Kuroshio Current acts as a southern boundary for the transport of the radionuclides, which have been transported from the Fukushima coast eastward in the NW Pacific Ocean. The 137Cs inventory in the water column is estimated to be about 2.2 PBq, what can be regarded as a lower limit of the direct liquid discharges into the sea as the seawater sampling was carried out only in the area from 34 to 37° N, and from 142 to 147° E. About 4.6 GBq of 129I was deposited in the NW Pacific Ocean, and 2.4-7 GBq of 129I was directly discharged as liquid wastes into the sea offshore Fukushima. The total amount of 3H released and deposited over the NW Pacific Ocean was estimated to be 0.1-0.5 PBq. These estimations depend, however, on the evaluation of the total 137Cs activities released as liquid wastes directly into the sea, which should improve when more data are

Spatial analysis of the etiology of amyotrophic lateral sclerosis among 1991 Gulf War veterans.

Science.gov (United States)

Miranda, Marie Lynn; Alicia Overstreet Galeano, M; Tassone, Eric; Allen, Kelli D; Horner, Ronnie D

2008-11-01

Veterans of the 1991 Gulf War have an increased risk of amyotrophic lateral sclerosis (ALS), but the etiology is unknown. This study sought to identify geographic areas with elevated risk for the later development of ALS among military personnel who served in the first Gulf War. A unified geographic information system (GIS) was constructed to allow analysis of secondary data on troop movements in the 1991 Gulf War theatre in the Persian Gulf region including Iraq, northern Saudi Arabia, and Kuwait. We fit Bayesian Poisson regression models to adjust for potential risk factors, including one relatively discrete environmental exposure, and to identify areas associated with elevated risk of ALS. We found that service in particular locations of the Gulf was associated with an elevated risk for later developing ALS, both before and after adjustment for branch of service and potential of exposure to chemical warfare agents in and around Khamisiyah, Iraq. Specific geographic locations of troop units within the 1991 Gulf War theatre are associated with an increased risk for the subsequent development of ALS among members of those units. The identified spatial locations represent the logical starting points in the search for potential etiologic factors of ALS among Gulf War veterans. Of note, for locations where the relative odds of subsequently developing ALS are among the highest, specific risk factors, whether environmental or occupationally related, have not been identified. The results of spatial models can be used to subsequently look for risk factors that follow the spatial pattern of elevated risk.

System-Level Sensitivity Analysis of SiNW-bioFET-Based Biosensing Using Lockin Amplification

DEFF Research Database (Denmark)

Patou, François; Dimaki, Maria; Kjærgaard, Claus

2017-01-01

carry out for the first time the system-level sensitivity analysis of a generic SiNW-bioFET model coupled to a custom-design instrument based on the lock-in amplifier. By investigating a large parametric space spanning over both sensor and instrumentation specifications, we demonstrate that systemwide...

Coral reef connectivity within the Western Gulf of Mexico

Science.gov (United States)

Salas-Monreal, David; Marin-Hernandez, Mark; Salas-Perez, Jose de Jesus; Salas-de-Leon, David Alberto; Monreal-Gomez, Maria Adela; Perez-España, Horacio

2018-03-01

The yearlong monthly mean satellite data of the geostrophic velocities, the sea surface temperature and the chlorophyll-a values were used to elucidate any possible pathway among the different coral reef systems of the Western Gulf of Mexico (WGM). The geostrophic current velocities suggested different pathways connecting the coral reef areas. The typical coastal alongshore pathway constricted to the continental shelf, and two open ocean pathway, the first connecting the Campeche Reef System (CRS) with the Veracruz (VRS) and Tuxpan-Lobos Reef Systems (TLRS), and the second pathway connecting the Tuxpan-Lobos Reef System with the Flower Garden Reef System (FGRS). According to the pathways there should be more larvae transport from the southern Gulf of Mexico reef systems toward the FGRS than the other way. The connection from the southern Gulf of Mexico toward the FGRS took place during January, May, July, August and September (2015), while the connection from the FGRS toward the southern Gulf of Mexico reef system took place during January and February (2015), this was also suggested via model outputs. The density radio (R) was used as a first approximation to elucidate the influence of the freshwater continental discharges within the continental shelf. All coral reef areas were located where the Chlorophyll-a monthly mean values had values bellow 1 mg m- 2 with a density radio between 0 and 1, i.e. under the influence of continental discharges.

Gulf war depleted uranium risks.

Science.gov (United States)

Marshall, Albert C

2008-01-01

US and British forces used depleted uranium (DU) in armor-piercing rounds to disable enemy tanks during the Gulf and Balkan Wars. Uranium particulate is generated by DU shell impact and particulate entrained in air may be inhaled or ingested by troops and nearby civilian populations. As uranium is slightly radioactive and chemically toxic, a number of critics have asserted that DU exposure has resulted in a variety of adverse health effects for exposed veterans and nearby civilian populations. The study described in this paper used mathematical modeling to estimate health risks from exposure to DU during the 1991 Gulf War for both US troops and nearby Iraqi civilians. The analysis found that the risks of DU-induced leukemia or birth defects are far too small to result in an observable increase in these health effects among exposed veterans or Iraqi civilians. The analysis indicated that only a few ( approximately 5) US veterans in vehicles accidentally targeted by US tanks received significant exposure levels, resulting in about a 1.4% lifetime risk of DU radiation-induced fatal cancer (compared with about a 24% risk of a fatal cancer from all other causes). These veterans may have also experienced temporary kidney damage. Iraqi children playing for 500 h in DU-destroyed vehicles are predicted to incur a cancer risk of about 0.4%. In vitro and animal tests suggest the possibility of chemically induced health effects from DU internalization, such as immune system impairment. Further study is needed to determine the applicability of these findings for Gulf War exposure to DU. Veterans and civilians who did not occupy DU-contaminated vehicles are unlikely to have internalized quantities of DU significantly in excess of normal internalization of natural uranium from the environment.

A basis for environmental monitoring in the gulf of Batabano applying hydrodynamic simulations

International Nuclear Information System (INIS)

Arriaza Oliveros, L.; Rodas Fernandez, L.; Simanca Cardenas, J.; Milian Lorenz, D.E.; Romero Suarez, P.L.

2006-01-01

The spreading of organic compounds and wastes in seawater depend on the space-time distribution of marine currents. Therefore, for the Environmental Monitoring of sea waters in the Cuban shelf it is necessary to include the marine current variable. A hydrodynamic model is applied in the Gulf of Batabano. The model was validated by using marine currents observed. Any organic compound or wastes in the Batabano or La Broa will moved slowly (1 + - 0.0529 cm/s and 4.7 + - 0.0529 cm/s) until the center and southwestern part of the gulf and the western part of the Isla de la Juventud, affecting for a long time period the SW coast of the gulf. Any pollution in ocean waters adjacent to this shelf will go through the open boundary with a mean velocity between 15 + - 0.25 cm/s and 29.5 + - 0.25 cm/s until the northern part of the Isla de la Juventud; it affects quickly this island and the southwestern and southeastern coasts of the gulf; the pollution will go slowly (1 + - 0.0529 cm/s and 3 + - 0.0529 cm/s) until the central and northeastern part of the gulf

Assessing aquifer storage and recovery feasibility in the Gulf Coastal Plains of Texas

Directory of Open Access Journals (Sweden)

W. Benjamin Smith

2017-12-01

Full Text Available Study region: The Gulf Coast and Carrizo-Wilcox aquifer systems in the Gulf Coastal Plains of Texas. Study focus: Aquifer storage and recovery is a water storage alternative that is underutilized in Texas, a state with both long periods of drought and high intensity storms. Future water storage plans in Texas almost exclusively rely on surface reservoirs, subject to high evaporative losses. This study seeks to identify sites where aquifer storage and recovery (ASR may be successful, especially in recovery of injected waters, by analyzing publicly-available hydrogeologic data. Transmissivity, hydraulic gradient, well density, depth to aquifer, and depth to groundwater are used in a GIS-based index to determine feasibility of implementing an ASR system in the Gulf Coast and Carrizo-Wilcox aquifer systems. New hydrological insights for the region: Large regions of the central and northern Gulf Coast and the central and southern Carrizo-Wilcox aquifer systems are expected to be hydrologically feasible regions for ASR. Corpus Christi, Victoria, San Antonio, Bryan, and College Station are identified as possible cities where ASR would be a useful water storage strategy. Keywords: Aquifer storage and recovery (ASR, GIS, Gulf coast, Carrizo-Wilcox, Managed aquifer recharge (MAR

Baseline concentrations of strontium and 90Sr in seawater from the northern Gulf

International Nuclear Information System (INIS)

Uddin, S.; Al Ghadban, A.N.; Behbahani, M.

2013-01-01

Highlights: • This is the first baseline for strontium and 90 Sr from northern Gulf. • The total strontium concentration is much higher than reported for other oceans. • The Sr/salinity ratio correlates well with global averages. • High Sr might be due to increased salinity/CaCo 3 dissolution in acidifying Gulf waters. -- Abstract: Baseline concentration of strontium and Sr-90 in Gulf is presented. The strontium concentration is much higher than reported for other oceanic waters, while the Sr-90 concentration is low at 0.7–1.0 mBq l −1 , that represents the background level following nuclear tests and can be used as an effective tracer in case of any radioactive release in the region. The strontium concentration is primarily related to the increasing salinity off the Gulf coast

Simulated Impacts of Juvenile Mortality on Gulf of Mexico Sturgeon Populations

Directory of Open Access Journals (Sweden)

William B. Tate

2002-01-01

Full Text Available We used an age-structured computer model to assess the impact of changes in juvenile mortality on the Gulf of Mexico sturgeon population in the Suwannee River, Florida. We simulated population trends under four levels of annual juvenile mortality (20, 25, 30, and 35%. As the rate of mortality increased, population size decreased, and rates of population growth shifted from positive to negative. Our models indicated that juvenile survival is important to the success of gulf sturgeon populations, and mortality estimates are needed to predict population viability. We suggest that life history studies in estuaries should be conducted, and bycatch rates for commercial fisheries should be quantified to aid in the management and conservation of gulf sturgeon.

Gulf of Aqaba Field Trip - Datasets

KAUST Repository

Hanafy, Sherif M.; Jonsson, Sigurjon; Klinger, Yann

2013-01-01

and 2D resistivity imaging to locate the fault. One seismic profile and one 2D resistivity profile are collected at an alluvial fan on the Gulf of Aqaba coast in Saudi Arabia. The collected data are inverted to generate the traveltime tomogram

The United States and the Arab Gulf Monarchies; Les Etats-Unis et les monarchie arabes du Golfe

Energy Technology Data Exchange (ETDEWEB)

Kechichian, J A

1999-07-01

The United States has enduring strategic interests in the Persian Gulf region. To understand these interests and the Usa policy towards the Arab Gulf Monarchies, the french institute of international relations (IFRI) proposes this document. The following chapters are detailed: the United States and the Arab Gulf Monarchies, overview, Chief Unites States Objective: Access to oil, re-evaluating United States Foreign Policy in the Gulf, the second term (Usa strategy). (A.L.B.)

Projected future wave climate in the NW Mediterranean Sea

Science.gov (United States)

Casas-Prat, M.; Sierra, J. P.

2013-07-01

Projected future regional wave climate scenarios at a high temporal-spatial scale were obtained for the NW Mediterranean Sea, using five combinations of regional-global circulation models. Changes in wave variables were analyzed and related to the variations of the forcing wind projections, while also evaluating the evolution of the presence of the different types of sea states. To assess the significance of the changes produced, a bootstrap-based method was proposed, which accounts for the autocorrelation of data and correctly reproduces the extremes. For the mean climate, relative changes of Hs up to ±10% were obtained, whereas they were around ±20% for the extreme climate. In mean terms, variations of Hs are similar to those associated with wind speed but are enhanced/attenuated, respectively, when fetch conditions are favorable/unfavorable. In general, most notable alterations are not in the Hs magnitude but rather in its direction. In this regard, during the winter season, it is interesting to note that the significant deviations between the results derived from the two global circulation models are larger than those between regional models. ECHAM5 simulated an enhanced west wind flow that is translated into more frequent W-NW waves, whereas the HadCM3Q3 global model gives rise to the east component, which contributes to a higher intensity and number of storms coming from such a direction and directly affects the wind-sea/swell distribution of coastal stretches that face east, like the Catalan coast. Different patterns of change were obtained during the summer when a common rise of NE-E waves was found.

Sediment concentration and bed form structures of Gulf of Cambay from remote sensing

Digital Repository Service at National Institute of Oceanography (India)

Kunte, P.D.

period, the bottom currents pull sediment (sand) particles supplied by major and minor rivers, rolling along the Gulf bed. These sediments perhaps participate in the formation of bed form structures. The topography of the Gulf bottom comprises of numerous...

Sea Snake Harvest in the Gulf of Thailand

DEFF Research Database (Denmark)

Van Cao, Nguyen; Thien Tao, Nguyen; Moore, Amelia

2014-01-01

Abstract: Conservation of sea snakes is virtually nonexistent in Asia, and its role in human–snake interactions in terms of catch, trade, and snakebites as an occupational hazard is mostly unexplored. We collected data on sea snake landings from the Gulf of Thailand, a hotspot for sea snake harvest...... years), and the treatment of sea snake bites with rhinoceros horn. Emerging markets in Southeast Asia drive the harvest of venomous sea snakes in the Gulf of Thailand and sea snake bites present a potentially lethal occupational hazard. We call for implementation of monitoring programs to further...... address the conservation implications of this large-scale marine reptile exploitation....

Seasonal Composite Chlorophyll Concentrations - Gulf of Maine

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This personal geodatabase contains raster images of chlorophyll concentrations in the Gulf of Maine. These raster images are seasonal composites, and were calculated...

Gulf of Mexico Nutrient, carbon, CTD data

Data.gov (United States)

U.S. Environmental Protection Agency — Gulf of Mexico cruise, nearshore and CTD data collected by the USEPA during 2002 - 2008. This dataset is associated with the following publications: Pauer , J., T....

Monthly Composite Chlorophyll Concentrations - Gulf of Maine

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This personal geodatabase contains raster images of chlorophyll concentrations in the Gulf of Maine. These raster images are monthly composites, and were calculated...

2013 Gulf of Mexico SPCE angler survey

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This survey provides economic data related to marine recreational fishing in the Gulf of Mexico. The data collected include preference and opinion information...

Gulf gas - tomorrow's nest-egg

International Nuclear Information System (INIS)

Roberts, J.

1993-01-01

The Persian Gulf remains the world's largest crude oil reservoir but it also contains some of the world's biggest gas reserves and for much of the 1990s the countries that grew rich on the oil booms of the 1970s and 1980s will be seeking to develop their gas resources as well as their oilfields. (author)

CRED APEX Drifting Buoy Argos_ID 26070 Data in the NW Hawaiian Islands, the Pacific Ocean

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — CRED APEX drifter Argos_ID 26070 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. APEX drifter data files...

Gulf Coast climate change adaptation pilot study.

Science.gov (United States)

2013-08-01

Climate change-related issues place substantial operating and financial burdens on public transit agencies, particularly in coastal settings. Gulf of Mexico coastal transit agencies and their constituents are especially vulnerable to natural hazards ...

My service in the Gulf War

International Nuclear Information System (INIS)

Losicki, M.

1991-01-01

During the Gulf War author, as a member of Polish Medical Mission, worked in the Saudi Military Hospital in the King Khalid Military Centre. An article describes radiologist service on a conventional contemporary war, as well as 3 cases of medical treatment. 5 figs

Development of Dietary Polyphenol Preparations for Treating Veterans with Gulf War Illness

Science.gov (United States)

2016-10-01

research study because you are a Gulf War Veteran who was deployed to the Persian Gulf between August 1990 and August 1991 and you fit the definition of...Friday, April 01, 2016 3:16 PM To: Pasinetti, Giulio Cc: Grants; King , Michael; Bennett, Jodi H CIV USARMY MEDCOM USAMRMC (US); Dubner, Lauren; Winter

Sex in the Suwannee, the secretive love life of Gulf Sturgeons

Science.gov (United States)

Sulak, Kenneth J.

2014-01-01

Mid-February in the Gulf of Mexico and a timeless ritual is about to repeat itself for perhaps the millionth time. Some mysterious signal, possibly increasing day length, flips an internal switch, feeding stops, and the homeward migration begins for the Gulf Sturgeon (Acipenser oxyrinchus desotoi). From far flung places along the Gulf Coast, Gulf Sturgeons start heading back to their natal rivers – they know the way instinctively. Maybe they seek out the special chemical taste of their home river, imprinted at hatching. Or perhaps the ultrasensitive electric organs decorating the underside of the snout can follow the map of the earth’s magnetic field. Either way, time to make a beeline for the welcoming waters of the Suwannee River, or maybe the Apalachicola, Choctawhatchee, or one of four other spawning rivers. Some of the adults are on a special mission – time to spawn, time to perpetuate the species. Mature males form the first wave in this homebound marathon, eager to get to the spawning grounds, eager to be the first to greet ready females with a series of sharp clicking sounds. Only spawning once each three years, females laden with large black eggs demure, taking their time, arriving in mid to late March, a month behind the early males. But most sturgeons, juveniles and immature adults not ready to spawn, are simply heading home. Not prompted by the spawning urge, they are just following the ancient annual cycle of intense winter feeding in the Gulf, followed by several months of fasting and R&R in the river.

Gulf Atlantic Coastal Plain Long Term Agroecosystem Research site, Tifton, GA

Science.gov (United States)

Timothy Strickland; David D. Bosch; Dinku M. Endale; Thomas L. Potter

2016-01-01

The Gulf-Atlantic Coastal Plain (GACP) physiographic region is an important agricultural production area within the southeastern U.S. that extends from Delaware in the Northeast to the Gulf Coast of Texas. The region consists mainly of low-elevation flat to rolling terrain with numerous streams, abundant rainfall, a complex coastline, and many wetlands. The GACP Long ...

Central Gulf of Alaska Rockfish Permit Program

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The North Pacific Fishery Management Council adopted the Central Gulf of Alaska Rockfish Program (Rockfish Program) on June 14, 2010, to replace the expiring Pilot...

Gulf sturgeon Critical Habitat Units 1-7

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — These data represent the critical habitat for Gulf Sturgeon as designated by Federal Register Vol. 68, No. 53, Wednesday, March 19, 2003, Rules and Regulations.

The Postwar Hospitalization Experience of Gulf War Veterans Participating in U.S. Health Registries

National Research Council Canada - National Science Library

Smith, Tyler C; Jimenez, Dinice L; Smith, Besa; Gray, Gregory C; Hooper, Tomoko I

2004-01-01

Although the US military experienced relatively low combat casualty rates during the Gulf War there has been concern that exposures occurring during the war may have resulted in postwar morbidity among Gulf War veterans...

77 FR 32962 - Gulf Coast LNG Export, LLC; Application for Long-Term Authorization To Export Domestically...

Science.gov (United States)

2012-06-04

... supply domestic demand for a century, even with significant exports of LNG. Gulf Coast contends that the... is not prohibited by U.S. law or policy. Gulf Coast seeks to export this LNG on its own behalf and...-going carrier, and with which trade is not prohibited by U.S. law or policy. In the alternative, Gulf...

Anomalously High Recruitment of the 2010 Gulf Menhaden (Brevoortia patronus) Year Class: Evidence of Indirect Effects from the Deepwater Horizon Blowout in the Gulf of Mexico.

Science.gov (United States)

Short, Jeffrey W; Geiger, Harold J; Haney, J Christopher; Voss, Christine M; Vozzo, Maria L; Guillory, Vincent; Peterson, Charles H

2017-07-01

Gulf menhaden (Brevoortia patronus) exhibited unprecedented juvenile recruitment in 2010 during the year of the Deepwater Horizon well blowout, exceeding the prior 39-year mean by more than four standard deviations near the Mississippi River. Abundance of that cohort remained exceptionally high for two subsequent years as recruits moved into older age classes. Such changes in this dominant forage fish population can be most parsimoniously explained as consequences of release from predation. Contact with crude oil induced high mortality of piscivorous seabirds, bottlenose dolphin (Tursiops truncatus), waders, and other fish-eating marsh birds, all of which are substantial consumers of Gulf menhaden. Diversions of fresh water from the Mississippi River to protect coastal marshes from oiling depressed salinities, impairing access to juvenile Gulf menhaden by aquatic predators that avoid low-salinity estuarine waters. These releases from predation led to an increase of Gulf menhaden biomass in 2011 to 2.4 million t, or more than twice the average biomass of 1.1 million t for the decade prior to 2010. Biomass increases of this magnitude in a major forage fish species suggest additional trophically linked effects at the population-, trophic-level and ecosystem scales, reflecting an heretofore little appreciated indirect effect that may be associated with major oil spills in highly productive marine waters.

Residence time of pollutants discharged in the Gulf of Kachchh, northwestern Arabian Sea

Digital Repository Service at National Institute of Oceanography (India)

Patgaonkar, R.S.; Vethamony, P.; Lokesh, K.S.; Babu, M.T.

A 2D Hydrodynamic-Particle Analysis model was applied to the Gulf of Kachchh (GoK) to estimate the residence time of pollutants. The tidal currents in the Gulf have a strong E-W component, which prevents the material in the north being transported...

77 FR 60319 - Harbor Porpoise Take Reduction Plan; Coastal Gulf of Maine Closure Area Established With a...

Science.gov (United States)

2012-10-03

...-XC099 Harbor Porpoise Take Reduction Plan; Coastal Gulf of Maine Closure Area Established With a... Atmospheric Administration (NOAA), Commerce. ACTION: Establishment of the Coastal Gulf of Maine Closure Area... Service (NMFS) announces the establishment of the Coastal Gulf of Maine Closure Area under the Harbor...

Simulation of oil pollution in the Persian Gulf near Assaluyeh oil terminal

International Nuclear Information System (INIS)

Faghihifard, M.; Badri, M.A.

2016-01-01

Numerical simulation of oil slick movement with respect to tidal factors and wind effects was performed in order to counteract oil pollution in the Persian Gulf. First, a flow model was invoked with respect to water level fluctuations. The main tidal constituents were applied to the model using the initial conditions of water level variations in the Hormuz Strait near the Hangam Island. The movement of oil pollution was determined due to wind, tide and temperature effects and confirmed by applying a verified field results. Simulations were focused near an important terminal in the Persian Gulf, Assaluyeh Port. The results were led to preparing a risk-taking map in a parallel research for the Persian Gulf.

Spatial and temporal genetic homogeneity of the Monterey Spanish mackerel, Scomberomorus concolor, in the Gulf of California

Directory of Open Access Journals (Sweden)

Erika Magallón-Gayón

2016-10-01

Full Text Available The genetic homogeneity of the Monterey Spanish mackerel Scomberomorus concolor population in the Gulf of California was confirmed using nine nuclear microsatellite loci in combination with mitochondrial cytochrome b gene sequences. Samples were collected from the upper and central Gulf areas, representing the two main biogeographical regions of the Gulf. The analyses support the existence of a single panmictic population of S. concolor inhabiting the Gulf of California which in terms of fishery management represents a single genetic stock. Additionally, the contemporary effective population size estimated for the S. concolor population (Ne = 3056.9 was high and similar to another pelagic species. The gene flow seems to be bidirectional between the upper and central Gulf, which coincides with the seasonal movements between both regions related to spawning and feeding activities. A population expansion event was detected, which agrees with a colonization-expansion hypothesis of the S. concolor population in the Gulf.

Snow bands over the Gulf of Finland in wintertime

Directory of Open Access Journals (Sweden)

Jordi Mazon

2015-01-01

Full Text Available Large shore-parallel, quasi-stationary snow bands are occasionally observed over the Gulf of Finland during wintertime when the sea is not frozen. On the basis of Weather Research and Forecasting mesoscale model experiments and radar observations of snow bands formed in January 2006 and February 2012, we show that their dynamics share common characteristics: (1 the sea gulf that produces the known lake effect, (2 cold easterly large-scale flow along the gulf and (3 a cold local flow from the two near and opposite coastlines of Estonia and Finland in the form of two land-breeze cells which collide offshore. The associated fronts, which have strong rising motions, are maintained by the convergence of the land-breeze cells. In addition to these factors, the concave shape of the coast in the eastern part of the Gulf of Finland promotes offshore convergence and the formation of several secondary bands of precipitation that are adjacent to the eastern part of the main band. When the easterlies turn to southerlies, horizontal convective rolls appear over the sea. The Estonian land breeze is enhanced while the cold air remains stagnant inland over the Finnish coast, acting as an orographic barrier lifting the marine air mass upwards. Consequently, a line of convective precipitation composed of several cells is formed along the Finnish coast. In both events, the simulations also show two low-level jets generated by the combined effects of the land-breeze cells and baroclinicity over the coast of Finland and Estonia.

Cities within Cities: An Urbanization Approach in the Gulf Countries

OpenAIRE

Bamakhrama, Salim Salah

2015-01-01

Within Dubai, nineteen out of the original 112 mega-projects carried the word city in their names, a phenomenon that is common in Gulf cities such as Dubai, Riyadh and Abu Dhabi. To further explore this phenomenon, this thesis focuses on three aspects that affect the dynamic relationship between the primary city and the cities within cities (sub-cities) in the Gulf region with special emphasis on Dubai. First, the naming problem of the sub-city illustrates why the tension between competing id...

Application of spatial models to the stopover ecology of trans-Gulf migrants

Science.gov (United States)

Theodore R. Simons; Scott M. Pearson; Frank R. Moore

2000-01-01

Studies at migratory stopover sites along the northern coast of the Gulf of Mexico are providing an understanding of how weather, habitat, and energetic factors combine to shape the stopover ecology of trans-Gulf migrants. We are coupling this understanding with analyses of landscape-level patterns of habitat availability by using spatially explicit models to simulate...

Coastal circulation and hydrography in the Gulf of Tehuantepec, Mexico, during winter

Science.gov (United States)

Barton, E. D.; Lavín, M. F.; Trasviña, A.

2009-02-01

Winter observations of shelf and slope hydrography and currents in the inner Gulf of Tehuantepec are analysed from two field studies in 1989 and 1996 to specify the variability of near-shore conditions under varying wind stress. During the winter period frequent outbursts of 'Norte' winds over the central Gulf result in persistent alongshore inflows along both its eastern and western coasts. Wind-induced variability on time scales of several days strongly influences the shelf currents, but has greater effect on its western coast because of the generation and separation of anticyclonic eddies there. The steadier inflow (˜0.2 m s -1) on the eastern shelf is evident in a strong down-bowing of shallow isosurfaces towards the coast within 100 km of shore, below a wedge of warmer, fresher and lighter water. This persistent entry of less saline (33.4-34.0), warmer water from the southeast clearly originates in buoyancy input by rivers along the Central American coast, but is augmented by a general shoreward tendency (0.2 m s -1) in the southeastern Gulf. The resultant shallow tongue of anomalous water is generally swept offshore in the head of the Gulf and mixed away by the strong outflow and vertical overturning of the frequent 'Norte' events but during wind relaxations the warm, low-salinity coastal flow may briefly extend further west. In the head of the Gulf, flow is predominantly offshore (depression, respectively, of the pycnocline against the shore. More saline, open ocean water is introduced from the north-western side of the Gulf by the inflow along the west coast. During extended wind relaxations, the flow becomes predominantly eastward beyond the shelf while nearshore the coastally trapped buoyant inflow from the southeast penetrates across the entire head of the gulf at least as far as its western limit. On the basis of these and other recent observations, it seems that the accepted view of a broad, persistent Costa Rica Coastal Current (CRCC) is the result

77 FR 60967 - Fisheries of the Gulf of Mexico; Southeast Data, Assessment and Review (SEDAR); Public Meeting

Science.gov (United States)

2012-10-05

...: Notice of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia assessment webinars. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish mackerel and cobia fisheries will consist of a series of workshops... modeling methodologies for the Gulf of Mexico Spanish mackerel and cobia fisheries. Special Accommodations...

Horizontal movements of Atlantic blue marlin (Makaira nigricans) in the Gulf of Mexico

Science.gov (United States)

Kraus, R.T.; Wells, R.J.D.; Rooker, J.R.

2011-01-01

We examined movements of Atlantic blue marlin (Makaira nigricans) from the Gulf of Mexico based upon 42 pop-up archival transmitting (PAT) tags. Long deployments (including one 334-day track) revealed diverse movement patterns within the Gulf of Mexico. North-south seasonal changes in blue marlin distribution showed strong correspondence with established seasonal patterns of sea surface temperature and primary production. During the summer spawning season, blue marlin utilized outer shelf and shelf edge waters in the northern Gulf of Mexico, and longer duration tracks indicated overwintering habitats in the Bay of Campeche. Egress occurred throughout the year and was difficult to determine because some tracks ended in the Straits of Florida (n = 3) while other tracks recorded movement through it or the Yucatan Channel (n = 4). Our results indicate that Atlantic blue marlin have a more restricted geographic range of habitats than previously recognized and that the Gulf of Mexico provides spatially dynamic suitable habitat that is utilized year-round through seasonal movements. ?? 2011 Springer-Verlag.

Southeast Gulf of Mexico Sperm Whale Study

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Large vessel surveys were conducted during the summers of 2012 and 2014 in the southeastern Gulf of Mexico north of the Dry Tortugas. Data were collected on the...

The GCC States of the Persian Gulf and Asia Energy Relations

International Nuclear Information System (INIS)

Kellner, Thierry

2012-01-01

Since the 2000's, China's and India's needs for hydrocarbons, coming on top of those of older industrialized Asian countries (Japan and South Korea), have considerably strengthened customer-supplier links between Asia in general and the Persian Gulf, in the energy field. The Asian market plays a major economic role for countries of the Gulf Cooperation Council (GCC). As a group, they export three and a half times as much to the Japanese, Korean, Indian and Chinese markets than to the European Union (EU27) and the United States combined (Euro 203 billion compared to Euro 58 billion, in 2010). Despite the growing economic importance of Asia to the GCC countries, the Gulf monarchies still have a clear interest in their relations with their traditional Western partners, especially in terms of investments and technologies. It is in their interests to maintain strong economic links with Europe and the OECD countries in general. In the future, Asian hydrocarbon consuming countries as a whole - as indeed the EU and the USA - will have an interest in the stability and security of the Persian Gulf. Yet a certain degree of rivalry between them may well express itself (for example, between India and China)

Tiered on-the-ground implementation projects for Gulf of Mexico water quality improvements

Science.gov (United States)

Both the Gulf Hypoxia Action Plan for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico and Improving Water Quality in the Mississippi River Basin (USEPA 2008) and the GOMA Governors’ Action Plan II for Healthy and Resilient Coasts (GOMA 2009) call for the development and ...

Increased Postdeployment Use of Medication for Common Mental Disorders in Danish Gulf War Veterans

DEFF Research Database (Denmark)

Nissen, Lars Ravnborg; Stoltenberg, Christian Ditlev Gabriel; Vedtofte, Mia Sadowa

2017-01-01

BACKGROUND: Gulf War veterans (GWVs) have an elevated risk of reporting symptoms of mental disorders as compared with nondeployed military controls. A difficulty in the Gulf War health research is that most health outcomes are self-reported; therefore, it is highly relevant to study objective....../hypnotic medication, and (3) number of postdeployment psychiatric contacts. The association between outcomes and GWVs status was studied by using time-to-event analysis. The index date was the return date from the last deployment to the Gulf. The follow-up period was the time from index date until December 31, 2014...... and anxiolytic or hypnotic medicine among GWVs compared with NVs were rather surprising since we recently, by using the same study population, found that deployment to the Persian Gulf was not associated with increased sickness absence or reduced labor market attachment. However, our results indicate...

Severe accident sequences simulated at the Grand Gulf Nuclear Station

International Nuclear Information System (INIS)

Carbajo, J.J.

1999-01-01

Different severe accident sequences employing the MELCOR code, version 1.8.4 QK, have been simulated at the Grand Gulf Nuclear Station (Grand Gulf). The postulated severe accidents simulated are two low-pressure, short-term, station blackouts; two unmitigated small-break (SB) loss-of-coolant accidents (LOCAs) (SBLOCAs); and one unmitigated large LOCA (LLOCA). The purpose of this study was to calculate best-estimate timings of events and source terms for a wide range of severe accidents and to compare the plant response to these accidents

Environmental Risk Assessment of dredging processes – application to Marin harbour (NW Spain)

OpenAIRE

A. G. Gómez; J. García Alba; A. Puente; J. A. Juanes

2014-01-01

ABSTRACT. A methodological procedure to estimate the environmental risk of dredging operations in aquatic systems has been developed. Environmental risk estimations are based on numerical models results, which provide an appropriated spatio-temporal framework analysis to guarantee an effective decision-making process. The methodological procedure has been applied on a real dredging operation in the port of Marin (NW Spain). Results from Marin harbour confirmed the suitabi...

Challenges facing the financing of oil production capacity in the Gulf

International Nuclear Information System (INIS)

Abi-Aad, Naji.

1995-01-01

The estimates of the required capital for maintaining and expanding oil production capacity in the 'Big Five' producers in the Gulf (Iran, Iraq, Kuwait, Saudi Arabia and the United Emirates) are large numbers. In fact, looking at the total cost of raising the Gulf oil production capacity from 18.5 million b/d in 1990 to 26.8 million b/d in the year 2005, the eventual sum is likely to end up at around $192 billion (1990 $) of which about $150 billion will be required as normal investment to maintain current output levels, and a further $42 billion will be necessary to develop new capacities. In short, the Gulf countries will need to spend an average of $12-13 billion per year to maintain current production and to raise some 8.3 million b/d of new capacity by 2005. (author)

Risk management strategy for initiating nuclear desalination in the Gulf Cooperation Council (GCC)

International Nuclear Information System (INIS)

Hakami, Saeed

2009-01-01

Full text:The Gulf countries are one of the most water short regions in the world, classified from the arid and semiarid regions. The average precipitation received is 100 mm/year which indicate very limited renewable water resources per capita and per hectare of irrigated land. The water resources in gulf countries not only continued under pressure, but also it drought from other factors such as increasing population and water demand for irrigation and industrial use. Furthermore, Rain is considered the only source of recharging the ground water in the gulf countries and its fall depends upon the storms that occur irregularly in respect of quantity or distribution year-round. While the countries of the Gulf region have the capacity to rapidly expand their economic growth and gross domestic product (GDP). Also, one may observe that their growth rate is very high. For solving their limitation to use fresh water and to develop and sustain their economy and development, they need to nuclear desalinations. Risk management strategy helps to reduce issues in initiating nuclear desalination plants. There are vast theories, strategies and tools that have discussed in regards to risk management strategy in the nuclear desalinations. However, this paper chiefly provides and introduces a new risk management methodology in the Gulf countries This methodology helps to highlight the critical factors and their consequences at nuclear desalinations. This paper is intended to reduce risks in using nuclear desalinations and increase opportunities. Also, the objectives of this paper are how to plan and initiate nuclear desalination plants in Gulf Countries. Consequently, the new methodology helps their sustainable water industry.

77 FR 28569 - Foreign-Trade Zone 92-Gulfport, MS Notification of Proposed Production Activity; Gulf Ship, LLC...

Science.gov (United States)

2012-05-15

... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [B-36-2012] Foreign-Trade Zone 92--Gulfport, MS Notification of Proposed Production Activity; Gulf Ship, LLC, (Shipbuilding), Gulfport, MS The Mississippi Coast Foreign-Trade Zone, Inc., grantee of FTZ 92, submitted a notification of proposed production activity on behalf of Gulf Ship, LLC (Gulf...

76 FR 38673 - Environmental Documents Prepared for Proposed Oil, Gas, and Mineral Operations by the Gulf of...

Science.gov (United States)

2011-07-01

... the Survey, SEA M10-008. Gulf of Mexico. Coastal Technology Corporation, Located on the Atlantic 2/1.... Planning Areas of the Gulf of Mexico. Energy Resource Technology GOM, Matagorda Island, Block 2/3/2011 Inc... Environmental Documents Prepared for Proposed Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer...

77 FR 50388 - Coastal Migratory Pelagic Resources of the Gulf of Mexico and South Atlantic; 2012-2013...

Science.gov (United States)

2012-08-21

... Brownsville, Texas) and continues to the boundary between the eastern and western zones at 87[deg]31.1[min] W... Atlantic; 2012-2013 Accountability Measure and Closure for Gulf King Mackerel in Western Zone AGENCY... king mackerel in the western zone of the Gulf of Mexico (Gulf) exclusive economic zone (EEZ) through...

78 FR 58248 - Coastal Migratory Pelagic Resources of the Gulf of Mexico and South Atlantic; 2013-2014...

Science.gov (United States)

2013-09-23

... between the eastern and western zones at 87[deg]31.1' W. long., which is a line directly south from the... Atlantic; 2013-2014 Accountability Measure and Closure for Gulf King Mackerel in Western Zone AGENCY... king mackerel in the western zone of the Gulf of Mexico (Gulf) exclusive economic zone (EEZ) through...

Effect of ocean warming and acidification on a plankton community in the NW Mediterranean Sea

NARCIS (Netherlands)

Maugendre, L.; Gattuso, J.-P.; Louis, J.; de Kluijver, A.; Marro, S.; Soetaert, K.; Gazeau, F.

2015-01-01

The effect of ocean warming and acidification was investigated on a natural plankton assemblage from an oligotrophic area, the bay of Villefranche (NW Mediterranean Sea). The assemblage was sampled in March 2012 and exposed to the following four treatments for 12 days: control (~360 µatm, 14°C),

Arctic passages: liminality, Iñupiat Eskimo mothers and NW Alaska communities in transition

Directory of Open Access Journals (Sweden)

Lisa Llewellyn Schwarzburg

2013-08-01

Full Text Available Background. While the primary goal of the NW Alaska Native maternal transport is safe deliveries for mothers from remote villages, little has been done to question the impact of transport on the mothers and communities involved. This study explores how presence of Iñupiat values influences the desire of indigenous women of differing eras and NW Alaska villages to participate in biomedical birth, largely made available by a tribal health-sponsored transport system. Objective. This paper portrays how important it is (and why for Alaska Native families and women of different generations from various areas of Iñupiat villages of NW Alaska to get to the hospital to give birth. This research asks: How does a community’s presence of Iñupiat values influence women of different eras and locations to participate in a more biomedical mode of birth? Design. Theoretical frameworks of medical anthropology and maternal identity work are used to track the differences in regard to the maternal transport operation for Iñupiat mothers of the area. Presence of Iñupiat values in each of the communities is compared by birth era and location for each village. Content analysis is conducted to determine common themes in an inductive, recursive fashion. Results. A connection is shown between a community’s manifestation of Iñupiat cultural expression and mothers’ acceptance of maternal transport in this study. For this group of Iñupiat Eskimo mothers, there is interplay between community expression of Iñupiat values and desire and lengths gone to by women of different eras and locations. Conclusions. The more openly manifested the Iñupiat values of the community, the more likely alternative birthing practices sought, lessening the reliance on the existing transport policy. Conversely, the more openly western values are manifested in the village of origin, the less likely alternative measures are sought. For this study group, mothers from study villages with

Prospects for the Growth and Influence of the Gulf Cooperation Council

Science.gov (United States)

1983-10-01

DARSP-supported Middle East study on "The Future of Islamic Fundemental ism in the Arab World in the 1980’s," and find them very helpful. We rfill...for Arab Economic Development (1974) Arab Investment Company (1974) Sa’udi Development Fund (1974) Gulf International Bank (1974) Gulf Arab...marketing. 3. The institution of joint policies to allocate investments at home and pursue financial interests world wide. 4. The coordination of

Trial of Naltrexone and Dextromethorphan for Gulf War Veterans’ Illnesses

Science.gov (United States)

2014-07-01

09-2-0065 TITLE: Trial of Naltrexone and Dextromethorphan for Gulf War Veterans Illnesses PRINCIPAL INVESTIGATOR: William J. Meggs, MD, PhD... Dextromethorphan and Naltrexone for Gulf War Veterens’ Illness 5a. CONTRACT NUMBER 5b. GRANT NUMBER W81XWH-09-2-0065 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR...neuron-inflammation, which can be down regulated, by Naltrexone and Dextromethorphan . This is untested but potentially ground breaking concept that

78 FR 40435 - Proposed Information Collection; Comment Request; Gulf of Alaska Trawl Fishery, Rationalization...

Science.gov (United States)

2013-07-05

... Collection; Comment Request; Gulf of Alaska Trawl Fishery, Rationalization Sociocultural Study AGENCY... management actions requiring equivalent information. Fisheries rationalization programs have an impact on... the implementation of a new, yet to be defined, rationalization program for the Gulf of Alaska trawl...

Gulf of Mexico dissolved oxygen model (GoMDOM) research and quality assurance project plan

Science.gov (United States)

An integrated high resolution mathematical modeling framework is being developed that will link hydrodynamic, atmospheric, and water quality models for the northern Gulf of Mexico. This Research and Quality Assurance Project Plan primarily focuses on the deterministic Gulf of Me...

Fishery potential of the Gulf of Kachchh

Digital Repository Service at National Institute of Oceanography (India)

Nair, V.R.; Govindan, K.; Ramaiah, Neelam; Gajbhiye, S.N

/h) was three times more productive than the creek (av. 2.3 kg/h). The number of species found in the Gulf and creek were respectively 34 and 20 suggesting good biodiversity of the living resources of the area....

77 FR 21955 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2012-04-12

... stock, and that the ABC may be increased. The stock, however, is still overfished and under a rebuilding plan through 2032. The next SEDAR benchmark stock assessment currently scheduled for Gulf red snapper...

The Solarya Volcano-Plutonic Complex (NW Turkey): Petrography, Petrogenesis and Tectonic Implications

Science.gov (United States)

Ünal, Alp; Kamacı, Ömer; Altunkaynak, Şafak

2014-05-01

The post collisional magmatic activity produced several volcano-plutonic complexes in NW Anatolia (Turkey) during the late Oligocene- Middle Miocene. One of the major volcano-plutonic complexes, the Solarya volcano-plutonic complex is remarkable for its coeval and cogenetic plutonic (Solarya pluton), hypabysal and volcanic rocks of Early Miocene (24-21 Ma) age. Solarya pluton is an epizonal pluton which discordantly intruded into metamorphic and nonmetamorphic basement rocks of Triassic age. It is a N-S trending magmatic body covering an area of 220 km2,approximatelly 20 km in length and 10 km in width. Based on the field and petrographic studies, three main rock groups distinguished in Solarya pluton; K-feldspar megacrystalline granodiorite, microgranite-granodiorite and haplogranite. Porphyritic and graphic-granophyric textures are common in these three rock groups. Pluton contains magmatic enclaves and syn-plutonic dykes of dioritic composition. Hypabyssal rocks are represented by porphyritic microdiorite and porphyritic quartz-diorite. They form porphyry plugs, sheet inrusions and dykes around the pluton. Porphyrites have microcrystalline-cryptocrystalline groundmass displaying micrographic and granophyric textures. Petrographically similar to the hypabyssal rocks, volcanic rocks are formed from andesitic and dasitic lavas and pyroclastic rocks. Plutonic, hypabyssal and volcanic rocks of Solarya volcano-plutonic complex show similar major-trace element and Sr-Nd-Pb isotopic compositions, indicating common magmatic evolution and multicomponent melt sources including mantle and crustal components. They are mainly metaluminous, medium to high-K calc alkaline rocks and display enrichment in LILE and depletion in Nb, Ta, P and Ti. They have initial 87Sr/86Sr values of 0.70701- 0.70818 and 143Nd/144Nd values of 0.51241-0.51250. These geochemical characteristics and isotopic signatures are considered to reflect the composition of the magmas derived from a

The outer Gulf of Mexico

Energy Technology Data Exchange (ETDEWEB)

Henery, D. [Shell Internationale Petroleum Maatschappij BV, Den Haag (Netherlands)

1996-12-31

This paper deals with the offshore activity in the Gulf of Mexico. Up to the end of 1995 there have been close to 300 exploratory wells drilled in water depths beyond 450 metres, and over 50 development wells. In addition approximately 1.500 leases have been awarded in the deep water. Themes discussed are deep water discoveries, average well rates, and key learnings points

Spatial evolution of Zagros collision zone in Kurdistan, NW Iran: constraints on Arabia-Eurasia oblique convergence

Science.gov (United States)

Sadeghi, Shahriar; Yassaghi, Ali

2016-04-01

Stratigraphy, detailed structural mapping and a crustal-scale cross section across the NW Zagros collision zone provide constraints on the spatial evolution of oblique convergence of the Arabian and Eurasian plates since the Late Cretaceous. The Zagros collision zone in NW Iran consists of the internal Sanandaj-Sirjan, Gaveh Rud and Ophiolite zones and the external Bisotoun, Radiolarite and High Zagros zones. The Main Zagros Thrust is the major structure of the Zagros suture zone. Two stages of oblique deformation are recognized in the external part of the NW Zagros in Iran. In the early stage, coexisting dextral strike-slip and reverse dominated domains in the Radiolarite zone developed in response to deformation partitioning due to oblique convergence. Dextral-reverse faults in the Bisotoun zone are also compatible with oblique convergence. In the late stage, deformation partitioning occurred during southeastward propagation of the Zagros orogeny towards its foreland resulting in synchronous development of orogen-parallel strike-slip and thrust faults. It is proposed that the first stage was related to Late Cretaceous oblique obduction, while the second stage resulted from Cenozoic collision. The Cenozoic orogen-parallel strike-slip component of Zagros oblique convergence is not confined to the Zagros suture zone (Main Recent Fault) but also occurred in the external part (Marekhil-Ravansar fault system). Thus, it is proposed that oblique convergence of Arabian and Eurasian plates in Zagros collision zone initiated with oblique obduction in the Late Cretaceous followed by oblique collision in the late Tertiary, consistent with global plate reconstructions.

‘In Drag’: Performativity and Authenticity in Zadie Smith’s NW

Directory of Open Access Journals (Sweden)

Zapata Beatriz Pérez

2014-09-01

Full Text Available Zadie Smith’s latest novel, NW, presents a multiverse in which multiplicity is driven into homogeneization by the forces of those dominant discourses that attempt to suppress the category of the “Other.” This paper focuses on the development of the two female protagonists. Their opposing attitudes towards motherhood, together with their confrontation with their origins, bring to the fore the performativity found in the discourses of gender, sexuality, class, and race. Thus, this paper will explore authenticity and performativity in a contemporary context, where patriarchal and neocolonial discourses still apply.

Gulf of Mexico: Dealing with Change in a Marginal Sea

Science.gov (United States)

Rabalais, N. N.

2017-12-01

The Gulf of Mexico is shared by the United States, Mexico and Cuba and requires collaborative work for integrated management to conserve its natural assets and derived benefits, as well as to foster the overall regional economic wealth. Many rivers drain into the Gulf, most notably the Mississippi, which ranks among global rivers 4th in discharge, 7th in sediment load and 3rd in drainage area, and accounts for about 90 percent of the freshwater inflow to the Gulf. The Mississippi River proper empties onto a narrow ( 20 km wide) continental shelf, and its tributary, the Atchafalaya River, that carries about one third of the total flow discharges onto the broad ( 200 km) and shallow part of the shelf. The entrainment of the Mississippi River discharge into the Louisiana Coastal Current results in the semblance of an extended estuary across much of the inner to mid continental shelf for much of the year. The nitrogen load from the Mississippi River to the adjacent continental shelf over the last half century has increased by 300 per cent. As a result, eutrophication and hypoxia have developed in this stratified coastal system with implications for biogeochemical cycles and valued resources. While there is recognition that over half of the nitrogen sources come from agricultural practices widespread across the watershed, the environmental goal of bringing a 32-year average 13,800 square kilometers of bottom-water hypoxia to less than 5,000 square kilometers is being realized through voluntary and incentive-based activities, designed within a series of subbasin and state strategies. Some activities funded by the US Department of Agriculture for directed nutrient reduction projects and several small-scale voluntary actions towards sustainable and ecologically sound agriculture show promise, but large-scale social-political solutions do not exist now nor will they for the forseeable future. The coastal waters adjacent to the Mississippi River are just one of many such

Trial of Naltrexone and Dextromethorphan for Gulf War Veterans’ Illness

Science.gov (United States)

2015-07-01

1 Award Number: W81XWH-09-2-0065 TITLE: Trial of Naltrexone and Dextromethorphan for Gulf War Veterans’ Illness PRINCIPAL INVESTIGATOR: William J... Dextromethorphan for Gulf War Veterans’ Illness 5a. CONTRACT NUMBER W81XWH-09-2-0065 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) William...is related to low grade neuron-inflammation, which can be down regulated, by Naltrexone and Dextromethorphan . This is untested but potentially

Health Status of Gulf War and Era Veterans Serving in the US Military in 2000.

Science.gov (United States)

Porter, Ben; Long, Kyna; Rull, Rudolph P; Dursa, Erin K

2018-05-01

This research describes Gulf War and era veterans enrolled in the Millennium Cohort Study, who were sampled from US military personnel serving in 2000, and compares health characteristics of this sample to a Department of Veterans Affairs study sampled from the complete population. Demographics characteristics of this sample were described. Self-reported health characteristics were compared between the two studies. Gulf War and era veterans in the Millennium Cohort were generally healthier than in the VA study; they had fewer medical conditions and mental health disorders and better self-reported health. In both studies, Gulf War veterans had poorer health outcomes than era veterans. The Millennium Cohort Study is a unique resource for examining the long-term health effects of Gulf War deployment, particularly comparing deployed and nondeployed personnel and examining illnesses with long latencies.

Dolphins in a Scaled-Down Mediterranean: The Gulf of Corinth's Odontocetes.

Science.gov (United States)

Bearzi, G; Bonizzoni, S; Santostasi, N L; Furey, N B; Eddy, L; Valavanis, V D; Gimenez, O

The Gulf of Corinth is a 2400-km 2 semi-enclosed inland system (a mediterraneus) in central Greece. Its continental shelf areas, steep bottom relief, and waters up to 500-900m deep offer suitable habitat to neritic and pelagic species. We used photographic capture-recapture, distribution modelling, and direct observations to investigate the abundance, status, habitat preferences, movements, and group size of four odontocete species regularly observed in the Gulf, based on five years (2011-2015) of survey effort from small boats. Striped dolphins (Stenella coeruleoalba) are more abundant (1324 individuals, 95%CI 1158-1515) than was determined from previous estimates. Striped dolphins appear to be confined to the Gulf, where they favour deep and oligotrophic waters, and were encountered in single-species and mixed-species groups. Short-beaked common dolphins (Delphinus delphis) (22 individuals, 95%CI 16-31), individuals with intermediate pigmentation (possibly striped/common dolphin hybrids) (55, 95%CI 36-83), and a single Risso's dolphin (Grampus griseus) were only encountered in mixed-species groups with striped dolphins. Short-beaked common dolphins constitute a discrete conservation unit (subpopulation), and based on the current estimate, would qualify as Critically Endangered according to International Union for the Conservation of Nature (IUCN) Red List criteria. Common bottlenose dolphins (Tursiops truncatus) (39 animals, 95%CI 33-47) occur in single-species groups; they prefer continental shelf waters and areas near fish farms in the northern sector, and several animals appear to move into and out of the Gulf. Additionally, we contribute records of marine fauna and an assessment of the fishing fleet operating in the Gulf. Our study shows that the importance of this vulnerable marine environment has been underestimated, and management action must be taken to mitigate human impact and ensure long-term protection. © 2016 Elsevier Ltd All rights reserved.

Better Buildings NW Ohio

Energy Technology Data Exchange (ETDEWEB)

Moyer, Kevin [Toledo-Lucas County Port Authority, Toledo, OH (United States)

2015-03-04

Districts or ESIDs and what is nationally known as Property Assessed Clean Energy or PACE districts and PACE financing. The project methodology followed the identify, develop, implement, monitor and measure format. These districts began in Toledo and adjoining areas and are expanding to TLCPA’s 28 county financing agency geographic footprint. What began as the Toledo Ohio Advanced Energy Improvement Corporation is now doing business as the Northwest Ohio Advanced Energy Improvement District recognizing it expansion into creating and financing other districts in NW Ohio. The program has been sought out as an advisor by major communities and states in the process of developing similar legislation and programs and has become one of the largest most successful PACE energy improvement and financing districts in the US. The program and the energy district focused on transforming energy use, delivery, conservation and renewable energy as “options of first choice”. The significant energy savings paid for many of the improvements and created a financially viable program well beyond the grant period. The program has become a model within the State of Ohio and Nationally on how to implement and finance projects in broad energy districts including how to evolve and integrate several financing methodologies. It is a unique utilization of revolving loan funds and energy bond pooling with revenue backing primarily from energy improvement special assessments on commercial properties along with some power purchase agreement (PPA) and loan agreement revenue. The program has also incorporated Qualified Energy Conservation Bonds, State of Ohio Energy Loans (SEP), utility rebates, solar and renewable energy certificates, renewable tax incentives and grants, and owner funded equity as additional program leverage and funding. Other keys to this success have been a continual simplification and refinement of the application and documentation process to make funding available easily and

CURRENT DIRECTION, SALINITY - SURFACE WATER and other data from DRIFTING PLATFORM in the Gulf of Mexico and Coastal Waters of Gulf of Mexico from 1992-08-13 to 1995-08-05 (NODC Accession 9600132)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The water depth and temperature data were collected in Gulf of Mexico as part of Louisiana-Texas (LATEX part C Lousiana and Texas: LaTex) Gulf of Mexico Eddy...

77 FR 51771 - Fisheries of the Gulf of Mexico and South Atlantic; Southeast Data, Assessment, and Review (SEDAR...

Science.gov (United States)

2012-08-27

... Process Webinar for Gulf of Mexico and South Atlantic Spanish Mackerel and Cobia AGENCY: National Marine... of SEDAR 28 Gulf of Mexico and South Atlantic Spanish mackerel and cobia assessment webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico and South Atlantic Spanish mackerel and cobia fisheries...

Economic vulnerability to sea-level rise along the northern U.S. Gulf Coast

Science.gov (United States)

Thatcher, Cindy A.; Brock, John C.; Pendleton, Elizabeth A.

2013-01-01

The northern Gulf of Mexico coast of the United States has been identified as highly vulnerable to sea-level rise, based on a combination of physical and societal factors. Vulnerability of human populations and infrastructure to projected increases in sea level is a critical area of uncertainty for communities in the extremely low-lying and flat northern gulf coastal zone. A rapidly growing population along some parts of the northern Gulf of Mexico coastline is further increasing the potential societal and economic impacts of projected sea-level rise in the region, where observed relative rise rates range from 0.75 to 9.95 mm per year on the Gulf coasts of Texas, Louisiana, Mississippi, Alabama, and Florida. A 1-m elevation threshold was chosen as an inclusive designation of the coastal zone vulnerable to relative sea-level rise, because of uncertainty associated with sea-level rise projections. This study applies a Coastal Economic Vulnerability Index (CEVI) to the northern Gulf of Mexico region, which includes both physical and economic factors that contribute to societal risk of impacts from rising sea level. The economic variables incorporated in the CEVI include human population, urban land cover, economic value of key types of infrastructure, and residential and commercial building values. The variables are standardized and combined to produce a quantitative index value for each 1-km coastal segment, highlighting areas where human populations and the built environment are most at risk. This information can be used by coastal managers as they allocate limited resources for ecosystem restoration, beach nourishment, and coastal-protection infrastructure. The study indicates a large amount of variability in index values along the northern Gulf of Mexico coastline, and highlights areas where long-term planning to enhance resiliency is particularly needed.

Gulf of Mexico Regional Climatology (NCEI Accession 0123320)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Gulf of Mexico Regional Climatology is a set of objectively analyzed climatological fields of temperature, salinity, oxygen, phosphate, silicate, and nitrate at...

Lower Cretaceous Source Rock and its Implication for the Gulf of Guinea Petroleum System

International Nuclear Information System (INIS)

Frost, B.R.; Griffith, R.C.

2002-01-01

Current petroleum system models for the Gulf of Guinea propose Tertiary-age deltaic organic material as the principal source for the hydrocarbons found there. Although previous workers recognized numerous difficulties and inconsistencies, no alternative model has been resented to adequately explain the complete petroleum system. We propose that the principal source rock for the Gulf of Guinea system occurs in upper lower Cretaceous-age shales at the rift-drift transition. Tertiary loading and the consequent maturation of this lower Cretaceous source rock can explain the controls on tap formation, reservoir distribution and hydrocarbon types found in the Gulf of Guinea

Rugose corals across the Devonian-Carboniferous boundary in NW Turkey

Directory of Open Access Journals (Sweden)

Julien Denayer

2016-02-01

Full Text Available An uppermost Famennian (Strunian coral assemblage has been recovered in the middle part of the Yılanlı Formation of the Istanbul Zone (Zonguldak and Bartın areas, NW Turkey. In the Bartın area, the studied fossiliferous interval corresponds to a c. 30 m-thick unit of bioclastic to peloidal wackestone to packstone grading to grainstone and including two stromatoporoid biostromes. In the Zonguldak area, 60 km westward, the bioclastic facies is dominant. The rugose corals are mainly solitary taxa belonging to the genera Campophyllum, Bounophyllum, Amplexocarinia, and ?Metriophyllum, and only one colonial genus occurs: Pseudoendophyllum. This fauna is similar to that documented in Europe. The campophyllids and dibunophyllids are the main component of the uppermost Famennian assemblages in S Belgium, N France, W Germany, NW and S Poland. The endophyllids occur in S Poland, Novaya Zemlya, and in the Ural Mountains. The Istanbul Zone is supposed to be situated in the central part of the Palaeotethys Ocean, along the southern margin of Laurussia during the uppermost Devonian and Carboniferous. The rugose corals indicate some relationship with the eastern part of Laurussia, or that both areas were under a common marine influence at this time. The global Hangenberg event was not recognized in the Turkish localities, except for the disappearance of the corals, occurring less than 19 m below the Devonian–Carboniferous boundary based on the foraminifers. There is no major facies change through the boundary and the first Carboniferous corals (small Uralinia and Caninophyllum appear 6 m above the D–C boundary. The new species Caninophyllum charli sp. nov. is described from the upper part of the lower Tournaisian.

Pollutants from the Gulf War serve as water mass tracer in the Arabian Sea

Science.gov (United States)

Plähn, Olaf; Rhein, Monika; Fine, Rana A.; Sullivan, Kevin F.

In 1995, concentrations of the chlorofluorocarbon compound CFC-12 in the outflow water from the Persian Gulf were 8-40 fold higher than normally caused by air-sea gas exchange. At that time, the anomaly was restricted to the Gulf of Oman north of 20°N, while in 1998 the signal had spread southwestward to 12°N. The sources of this CFC-12 input of about 6400 kg are most likely the fire extinguishers and solvents used during and after the Gulf War in 1991. This CFC-12 signal is a new feature of the Persian Gulf Water (PGW) which can be used to track and quantify the spreading and dilution of PGW in the northern Indian Ocean. The contaminated PGW spreads southward with a mean velocity of 0.02-0.025 m s-1. At 20°N, the anomaly is diluted by a factor of more than two, and east of the island Socotra by a factor of four. A mean transport of less than 0.5·106 m³ s-1 is calculated for PGW assuming a mean dilution rate of 30% from the source signal in the Gulf of Oman to the western Arabian Sea.

Trends in marine debris in the U.S. Caribbean and the Gulf of Mexico, 1996-2003

Science.gov (United States)

Ribic, Christine; Seba B. Sheavly,; Rugg, David J.

2011-01-01

Marine debris is a widespread and globally recognized problem. Sound information is necessary to understand the extent of the problem and to inform resource managers and policy makers about potential mitigation strategies. Although there are many short-term studies on marine debris, a longer-term perspective and the ability to compare among regions has heretofore been missing in the U.S. Caribbean and the Gulf of Mexico. We used data from a national beach monitoring program to evaluate and compare amounts, composition, and trends of indicator marine debris in the U.S. Caribbean (Puerto Rico and the U.S. Virgin Islands) and the Gulf of Mexico from 1996 to 2003. Indicator items provided a standardized set that all surveys collected; each was assigned a probable source: ocean-based, land-based, or general-source. Probable ocean-based debris was related to activities such as recreational boating/fishing, commercial fishing and activities on oil/gas platforms. Probable land-based debris was related to land-based recreation and sewer systems. General-source debris represented plastic items that can come from either ocean- or land-based sources; these items were plastic bags, strapping bands, and plastic bottles (excluding motor oil containers). Debris loads were similar between the U.S. Caribbean and the western Gulf of Mexico; however, debris composition on U.S. Caribbean beaches was dominated by land-based indicators while the western Gulf of Mexico was dominated by ocean-based indicators. Beaches along the eastern Gulf of Mexico had the lowest counts of debris; composition was dominated by land-based indicators, similar to that found for the U.S. Caribbean. Debris loads on beaches in the Gulf of Mexico are likely affected by Gulf circulation patterns, reducing loads in the eastern Gulf and increasing loads in the western Gulf. Over the seven years of monitoring, we found a large linear decrease in total indicator debris, as well as all source categories, for the U

Deepwater Gulf of Mexico: high prospects

International Nuclear Information System (INIS)

Kirkland, G.

2000-01-01

The present and future role of the deepwater Gulf of Mexico to meeting natural gas requirements of the United States are reviewed.The steady increase in U.S. demand, outpacing U.S.supply for over 10 years and the increasing reliance by the USA on Canadian exports is demonstrated in conjunction with the '30 Tcf Challenge'. Regarding the Gulf of Mexico specifically, it is estimated that to meet expectations, production there needs to grow to 22 Bcfpd by 2020, especially the deepwater pools which have a potential of 80 to 140 Tcf over the next 50 years. These pools already produce as much oil as the shelf region, but only 25 per cent as much gas. To produce the expected 7 to 12 Bcfpd oil production must reach 4 million barrel of oil per day, which involves cycle time, new technologies and cost challenges. Much of the new technology needed is related to cutting costs and while good progress is being made, it is argued that further gains could occur if international technology were applied in the Gulf. The rate of success in exploration has also improved, with over one billion barrels of deepwater discoveries per year over the last four years. Cycle times have also improved, although the impact of cycle time in the deeper water regions is cause for some concern. The overall assessment is that to get the gas, one has to get the oil first, meaning that deepwater success is more dependent on oil prices than on gas prices. Nevertheless, the need for developing and applying new technologies remains paramount, including the application of existing foreign technologies that have proven successful elsewhere. It is equally important to demonstrate a high level of environmental stewardship, and to continue focusing on cycle time, including access to prospective acreage, a well-trained workforce, and reasonable regulatory and permitting requirements

Futuristic isotope hydrology in the Gulf region

Science.gov (United States)

Saravana Kumar, U.; Hadi, Khaled

2018-03-01

The Gulf region is one of the most water-stressed parts in the world. Water in the region is very scarce, shortage of supply and lacking of renewable water resources, while the demand for water is growing day by day. It is thus essential to implement modern approaches and technologies in addressing water-related issues. In this context, isotope hydrology will provide invaluable aid. Some of the most important areas of futuristic applications of isotope hydrology include evaluation of aquifer recharge, storage and their recovery system, understanding of dynamic changes due to long-term exploitation of the groundwater, development and management of shared groundwater aquifers, fresh groundwater discharge along the Arabian Gulf, identification and quantification of hydrocarbon contamination in groundwater; soil moisture and solute movement in unsaturated zone, paleoclimate reconstruction, etc. Literature survey suggests, in general, not many isotope studies on the above have been reported.

Geomorphology of the Southern Gulf of California Seafloor

Science.gov (United States)

Eakins, B. W.; Lonsdale, P. F.; Fletcher, J. M.; Ledesma, J. V.

2004-12-01

A Spring 2004 multibeam sonar survey defined the seafloor geomorphology of the southern part of Gulf of California and the intersection of the East Pacific Rise with the North American continent. Survey goals included mapping structural patterns formed during the rifting that opened the Gulf and identifying the spatial transition from continental rifting to seafloor spreading. Multibeam sonar imagery, augmented with archival data and a subaerial DEM of Mexico, illuminates the principal features of this boundary zone between obliquely diverging plates: (i) active and inactive oceanic risecrests within young oceanic basins that are rich in evidence for off-axis magmatic eruption and intrusion; (ii) transforms with pull-apart basins and transpressive ridges along shearing continental margins and within oceanic crust; (iii) orphaned blocks of continental crust detached from sheared and rifted continental margins; and (iv) young, still-extending continental margins dissected by submarine canyons that in many cases are deeply drowned river valleys. Many of the canyons are conduits for turbidity currents that feed deep-sea fans on oceanic and subsided continental crust, and channel sediment to spreading axes, thereby modifying the crustal accretion process. We present a series of detailed bathymetric and seafloor reflectivity maps of this MARGINS Rupturing Continental Lithosphere focus site illustrating geomorphologic features of the southern part of the Gulf, from Guaymas Basin to the Maria Magdalena Rise.

77 FR 34405 - Environmental Documents Prepared for Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer...

Science.gov (United States)

2012-06-11

... Geophysical Survey, SEA M09- Planning Area of the 013. Gulf of Mexico. Energy Resource Technology GOM, South... Oil, Gas, and Mineral Operations by the Gulf of Mexico Outer Continental Shelf (OCS) Region AGENCY... documents prepared for OCS mineral proposals by the Gulf of Mexico OCS Region SUMMARY: BOEM, in accordance...

Gulf of Mexico killer whale photo-ID catalog

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Photo-identification data on killer whales occupying the northern Gulf of Mexico have been collected in association with large vessel surveys since 1991. Photographs...

A medieval port at Ghogha in the Gulf of Khambhat, west coast of India

Digital Repository Service at National Institute of Oceanography (India)

Gaur, A

The Gulf of Khambhat has been a focal area for the human settlements since the Harappan and it is also famous for the highest tidal range in India. The author of the Periplus of the Erythrenean Sea vividly described the sites of the Gulf of Khambhat...

Seasonal levels of the Vibrio predator Bacteriovorax in Atlantic, Pacific and Gulf Coast Seawater

Science.gov (United States)

Bacteriovorax were quantified in US Atlantic, Gulf and Pacific seawater to determine baseline levels of these predatory bacteria and possible seasonal fluctuations in levels. Surface seawater was analyzed monthly for 1 year from Kailua-Kona, Hawaii; the Gulf Coast of Alabama; and four sites along t...

76 FR 35409 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fisheries of the Gulf of...

Science.gov (United States)

2011-06-17

... Atlantic States AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric..., red drum, coastal migratory pelagics, stone crab, and lobsters in the Gulf, and snapper-grouper, coastal migratory pelagics, dolphin and wahoo, and lobsters in the South Atlantic. The EFP exempts...

Environmental Risk Assessment of dredging processes - application to Marin harbour (NW Spain)

Science.gov (United States)

Gómez, A. G.; García Alba, J.; Puente, A.; Juanes, J. A.

2014-04-01

A methodological procedure to estimate the environmental risk of dredging operations in aquatic systems has been developed. Environmental risk estimations are based on numerical models results, which provide an appropriated spatio-temporal framework analysis to guarantee an effective decision-making process. The methodological procedure has been applied on a real dredging operation in the port of Marin (NW Spain). Results from Marin harbour confirmed the suitability of the developed methodology and the conceptual approaches as a comprehensive and practical management tool.

Nitrogen deposition and grass encroachment in calcareous and acidic Grey dunes (H2130) in NW-Europe

NARCIS (Netherlands)

Kooijman, A.M.; van Til, M.; Noordijk, E.; Remke, E.; Kalbitz, K.

We present an overview of high nitrogen deposition effects on coastal dune grasslands in NW-Europe (H2130), especially concerning grass encroachment in calcareous and acidic Grey Dunes. The problem is larger than previously assumed, because critical loads are still too high, and extra N-input from

78 FR 64888 - Coastal Migratory Pelagic Resources of the Gulf of Mexico and South Atlantic; Reopening of the...

Science.gov (United States)

2013-10-30

... the boundary between the eastern and western zones at 87[deg]31.1' W. long., which is a line directly... Atlantic; Reopening of the Commercial Harvest of Gulf King Mackerel in Western Zone AGENCY: National Marine... western zone of the Gulf of Mexico (Gulf) exclusive economic zone (EEZ). NMFS previously projected that...

78 FR 66945 - Proposed Collection; 60-Day Comment request: Gulf Long-Term Follow-Up Study (GuLF STUDY)

Science.gov (United States)

2013-11-07

... GuLF STUDY is to investigate potential short- and long-term health effects associated with oil spill... non-Cleanup Workers Supplemental Mental Health 4,600 4 15/60 4,600 1,533 Telephone Questionnaire... DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health Proposed Collection; 60-Day...

Gulf of Mexico sperm whale photo-ID catalog

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Photo-identification data on sperm whales occupying the north central Gulf of Mexico have been collected during vessel surveys. Photographs of sperm whales are taken...

Urbanization in contemporary Arab Gulf states.

Science.gov (United States)

Qutub, I Y

1983-01-01

Urbanization in the Arab Gulf states of Bahrain, Kuwait, Oman, Qatar, and the United Arab Emirates is analyzed. Topics discussed include the historical background to urbanization; current demographic trends in the region; urban characteristics and growth; socioeconomic factors influencing urbanization, with an emphasis on labor force structure; future urban strategy; and the need for urban research.

GRIIDC: A Data Repository for Gulf of Mexico Science

Science.gov (United States)

Ellis, S.; Gibeaut, J. C.

2017-12-01

The Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC) system is a data management solution appropriate for any researcher sharing Gulf of Mexico and oil spill science data. Our mission is to ensure a data and information legacy that promotes continual scientific discovery and public awareness of the Gulf of Mexico ecosystem. GRIIDC developed an open-source software solution to manage data from the Gulf of Mexico Research Initiative (GoMRI). The GoMRI program has over 2500 researchers from diverse fields of study with a variety of attitudes, experiences, and capacities for data sharing. The success of this solution is apparent through new partnerships to share data generated by RESTORE Act Centers of Excellence Programs, the National Academies of Science, and others. The GRIIDC data management system integrates dataset management planning, metadata creation, persistent identification, and data discoverability into an easy-to-use web application. No specialized software or program installations are required to support dataset submission or discovery. Furthermore, no data transformations are needed to submit data to GRIIDC; common file formats such as Excel, csv, and text are all acceptable for submissions. To ensure data are properly documented using the GRIIDC implementation of the ISO 19115-2 metadata standard, researchers submit detailed descriptive information through a series of interactive forms and no knowledge of metadata or xml formats are required. Once a dataset is documented and submitted the GRIIDC team performs a review of the dataset package. This review ensures that files can be opened and contain data, and that data are completely and accurately described. This review does not include performing quality assurance or control of data points, as GRIIDC expects scientists to perform these steps during the course of their work. Once approved, data are made public and searchable through the GRIIDC data discovery portal and the Data

Hydro- and morphodynamic tsunami simulations for the Ambrakian Gulf (Greece) and comparison with geoscientific field traces

Science.gov (United States)

Röbke, B. R.; Schüttrumpf, H.; Vött, A.

2018-04-01

In order to derive local tsunami risks for a particular coast, hydro- and morphodynamic numerical models that are calibrated and compared with sedimentary field data of past tsunami impacts have proven very effective. While this approach has widely been used with regard to recent tsunami events, comparable investigations into pre-/historical tsunami impacts hardly exist, which is the objective of this study focusing on the Ambrakian Gulf in northwestern Greece. The Ambrakian Gulf is located in the most active seismotectonic and by this most tsunamigenic area of the Mediterranean. Accordingly, palaeotsunami field studies have revealed repeated tsunami impacts on the gulf during the past 8000 yr. The current study analyses 151 vibracores of the Ambrakian Gulf coast in order to evaluate tsunami signals in the sedimentary record. Based on a hydro- and morphodynamic numerical model of the study area, various tsunami waves are simulated with the aim of finding scenarios that compare favourably with tsunami deposits detected in the field. Both, field data and simulation results suggest a decreasing tsunami influence from the western to the eastern Ambrakian Gulf. Various scenarios are needed to explain tsunami deposits in different parts of the gulf. Whereas shorter period tsunami waves (T = 30 min) from the south and west compare favourably with field data in the western gulf, longer period waves (T = 80 min) from a western direction show the best agreement with tsunami sediments detected in southwestern Aktio Headland and in the more central parts of the Ambrakian Gulf including Lake Voulkaria. Tsunamis from the southwest generally do not accord with field traces. Besides the spatial sediment distribution, the numerical model accurately reflects the sedimentary composition of the detected event deposits and reproduces a number of essential features typical of tsunamites, which were also observed in the field. Such include fining- and thinning-landward and the marine

Cesium, iodine and tritium in NW Pacific waters – a comparison of the Fukushima impact with global fallout

Directory of Open Access Journals (Sweden)

P. P. Povinec

2013-08-01

Full Text Available Radionuclide impact of the Fukushima Dai-ichi nuclear power plant accident on the distribution of radionuclides in seawater of the NW Pacific Ocean is compared with global fallout from atmospheric tests of nuclear weapons. Surface and water column samples collected during the Ka'imikai-o-Kanaloa (KOK international expedition carried out in June 2011 were analyzed for 134Cs, 137Cs, 129I and 3H. The 137Cs, 129I and 3H levels in surface seawater offshore Fukushima varied between 0.002–3.5 Bq L−1, 0.01–0.8 μBq L−1, and 0.05–0.15 Bq L−1, respectively. At the sampling site about 40 km from the coast, where all three radionuclides were analyzed, the Fukushima impact on the levels of these three radionuclides represents an increase above the global fallout background by factors of about 1000, 50 and 3, respectively. The water column data indicate that the transport of Fukushima-derived radionuclides downward to the depth of 300 m has already occurred. The observed 137Cs levels in surface waters and in the water column are compared with predictions obtained from the ocean general circulation model, which indicates that the Kuroshio Current acts as a southern boundary for the transport of the radionuclides, which have been transported from the Fukushima coast eastward in the NW Pacific Ocean. The 137Cs inventory in the water column is estimated to be about 2.2 PBq, what can be regarded as a lower limit of the direct liquid discharges into the sea as the seawater sampling was carried out only in the area from 34 to 37° N, and from 142 to 147° E. About 4.6 GBq of 129I was deposited in the NW Pacific Ocean, and 2.4–7 GBq of 129I was directly discharged as liquid wastes into the sea offshore Fukushima. The total amount of 3H released and deposited over the NW Pacific Ocean was estimated to be 0.1–0.5 PBq. These estimations depend, however, on the evaluation of the total 137Cs activities released as liquid wastes directly into the sea, which

Two-way multi-band optical/IR transmisson measurement in the Persian Gulf-coastal region

NARCIS (Netherlands)

Jong, A.N. de; Fritz, P.J.

2005-01-01

The atmospheric conditions in the Persian Gulf region are significantly different from other places in the world. The particle size distribution may vary daily and during the day. The aerosols can contribute to the amount of rainfall over land, important for the nations around the Gulf. In 2004

Southern San Andreas Fault Slip History Refined Using Pliocene Colorado River Deposits in the Western Salton Trough

Science.gov (United States)

Dorsey, R. J.; Bennett, S. E. K.; Housen, B. A.

2016-12-01

Tectonic reconstructions of Pacific-North America plate motion in the Salton Trough region (Bennett et al., 2016) are constrained by: (1) late Miocene volcanic rocks that record 255 +/-10 km of transform offset across the northern Gulf of California since 6 Ma (average 42 mm/yr; Oskin and Stock, 2003); and (2) GPS data that show modern rates of 50-52 mm/yr between Pacific and North America plates, and 46-48 mm/yr between Baja California (BC) and North America (NAM) (Plattner et al., 2007). New data from Pliocene Colorado River deposits in the Salton Trough provide an important additional constraint on the geologic history of slip on the southern San Andreas Fault (SAF). The Arroyo Diablo Formation (ADF) in the San Felipe Hills SW of the Salton Sea contains abundant cross-bedded channel sandstones deformed in the dextral Clark fault zone. The ADF ranges in age from 4.3 to 2.8 Ma in the Fish Creek-Vallecito basin, and in the Borrego Badlands its upper contact with the Borrego Formation is 2.9 Ma based on our new magnetostratigraphy. ADF paleocurrent data from a 20-km wide, NW-oriented belt near Salton City record overall transport to the SW (corrected for bedding dip, N=165), with directions ranging from NW to SE. Spatial domain analysis reveals radial divergence of paleoflow to the: W and NW in the NW domain; SW in the central domain; and S in the SE domain. Data near Borrego Sink, which restores to south of Salton City after removing offset on the San Jacinto fault zone, show overall transport to the SE. Pliocene patterns of radial paleoflow divergence strongly resemble downstream bifurcation of fluvial distributary channels on the modern Colorado River delta SW of Yuma, and indicate that Salton City has translated 120-130 km NW along the SAF since 3 Ma. We propose a model in which post-6 Ma BC-NAM relative motion gradually accelerated to 50 mm/yr by 4 Ma, continued at 50 mm/yr from 4-1 Ma, and decreased to 46 mm/yr from 1-0 Ma (split equally between the SAF and

Oil and gas, strategic regional cooperation between Persian Gulf countries

Energy Technology Data Exchange (ETDEWEB)

Zalloi, Mir Mahdi

2010-09-15

Almost two-thirds of proven oil and a third of world natural gas resources are in the Persian Gulf countries. Unfortunately strategic region of Persian Gulf in the past three decades faced with many security challenges due to wars and political conflicts. For security in this region, there are several methods such as military treaties between regional countries or Military presence of foreign countries, but historical evidence has shown, none of them could not guarantee the stable security in this region. The regional cooperation between countries can be replaced to mentioned methods. IPI Gas pipeline is an objective sample for this regional cooperation.

Nutrients distribution and trophic status assessment in the northern Beibu Gulf, China

Science.gov (United States)

Lai, Junxiang; Jiang, Fajun; Ke, Ke; Xu, Mingben; Lei, Fu; Chen, Bo

2014-09-01

Using historical and 2010 field data, the distribution of nutrients in the northern Beibu Gulf of China is described. There was a decreasing trend in the concentration of nutrients from the north coast to offshore waters of the northern Beibu Gulf, reflecting the influence of inputs from land-based sources. High concentrations of dissolved inorganic nitrogen (DIN) and phosphate (PO4-P) occurred mainly at Fangchenggang Bay, Qinzhou Bay, and Lianzhou Bay. Four different methods were used to assess eutrophication. The trophic status of the Beibu Gulf was characterized using the single factor, Eutrophication index (EI), Trophic index (TRIX) and Assessment of Estuarine Trophic Status (ASSETS) methods. Based on nutrient concentrations, 73.9% of DIN and 26.7% of PO4-P samples exceeded the fourth grade Seawater Quality Standard of China. Eutrophication index values varied widely, but higher levels of eutrophication were generally found in bays and estuaries. TRIX values ranged from 2.61 to 7.27, with an average of 4.98, indicating a mesotrophic and moderately productive system. A positive correlation between TRIX and harmful algal species richness and abundance was observed. The ASSETS model evaluates eutrophication status based on a Pressure-State-Response approach, including three main indices: influencing factors, overall eutrophic condition, and future outlook. The Beibu Gulf was graded as moderate using ASSETS. The single factor and Chinese nutrient index methods were considered inadequate for the assessment of trophic status. TRIX can be used as an indicator of trophic state and ASSETS showed good potential to assess eutrophication. The results of TRIX and ASSETS depend on threshold values. To establish these values, further research is required within the northern Beibu Gulf.

Subinertial response of the Gulf Stream System to Hurricane Fran of 1996

Science.gov (United States)

Xie, Lian; Pietrafesa, Leonard J.; Zhang, Chen

The evidence of subinertial-frequency (with periods from 2 days to 2 weeks) oceanic response to Hurricane Fran of 1996 is documented. Hurricane Fran traveled northward across the Gulf Stream and then over a cool-core trough, known as the Charleston Trough, due east of Charleston, SC and in the lee of the Charleston Bump during the period 4-5 September, 1996. During the passage of the storm, the trough closed into a gyre to form an intense cool-core cyclonic eddy. This cool-core eddy had an initial size of approximately 130 km by 170 km and drifted northeastward along the Gulf Stream front at a speed of 13 to 15 km/day as a subinertial baroclinic wave. Superimposed on this subinertial-frequency wave were near-inertial frequency, internal inertia-gravity waves formed in the stratified mixed-layer base after the passage of the storm. The results from a three-dimensional numerical ocean model confirm the existence of both near-inertial and subinertial-frequency waves in the Gulf Stream system during and after the passage of Hurricane Fran. Model results also showed that hurricane-forced oceanic response can modify Gulf Stream variability at both near-inertial and subinertial frequencies.

Temporal variation of 228Ra in the near-surface Gulf of Mexico

International Nuclear Information System (INIS)

Reid, F.D.; Moore, W.S.; Sackett, W.M.

1979-01-01

The Mn-fiber technique for extracting radium from seawater has proved useful for studying the marine geochemistry of 228 Ra. In the Gulf of Mexico, this technique was used to measure the surface and near-surface distribution of 226 Ra and 228 Ra. The observed surface distribution of 228 Ra, and particularly the radium activity ratio (228/226) can be explained by known circulation patterns, or, when local surface currents are not well understood, may provide insight into their general characteristics. The radium activity ratio has increased from 0.5 in 1968 to 0.7 in 1973 in the surface Gulf of Mexico. This observed increase cannot be attributed to known anthropogenic or natural source perturbations within the Caribbean Sea-Gulf of Mexico system. Possible causes include a change in the residence time for near-surface water, or variations in the relative dominance of the two eastern Caribbean; the North Equatorial Current and the Guiana Current. The temporal distribution of 228 Ra is unstable and naturally variable over a time period less than or equal to five years in the Gulf of Mexico and by extrapolation, the Caribbean Sea. Therefore, its usefulness in calculations of eddy diffusion coefficients for these regions is greatly diminished. (Auth.)

Coastal change and hypoxia in the northern Gulf of Mexico: Part I

Directory of Open Access Journals (Sweden)

2007-01-01

Full Text Available The Committee on Environment and Natural Resources (CENR has identified the input of nutrient-rich water from the Mississippi/Atchafalaya River Basin (MARB as the prime cause of hypoxia in the northern Gulf of Mexico and the prime means for its control. A Watershed Nutrient Task Force was formed to solve the hypoxia problem by managing the MARB catchment. However, the hypoxic zone is also experiencing massive physical, hydrological, chemical and biological changes associated with an immense river-switching and delta-building event that occurs here about once a millennium. Coastal change induced hypoxia in the northern Gulf of Mexico prior to European settlement. It is recommended that for further understanding and control of Gulf hypoxia the Watershed Nutrient Task Force adopt a truly holistic environmental approach which includes the full effects of this highly dynamic coastal area.

New offshore platform in the Mexican Gulf

Energy Technology Data Exchange (ETDEWEB)

Beisel, T.

1982-04-01

After a construction period of only 10 months, the second steel Offshore platform was recently completed in the Mexican Gulf. The pattern for this structure was the Cognac platform. The erection of the new platform, called the 'Cerveza' platform, is described in the article.

Influence of a big oil spill during the Gulf War on intertidal invertebrates

International Nuclear Information System (INIS)

Kado, Ryusuke; Tokuda, Hiroshi; Satoh, Hiroo; Hanawa, Shinichi; Murata, Yukiwo

1993-01-01

It is well known that a massive oil spill washed ashore from Al Khafji to the west side of the Abu Ali Peninsula in the western Arabian Gulf during the Gulf War. In these areas enormous amounts of oil are still left along most beaches at the high tide level. Surveys were carried out to clarify the effects of the massive oil spill

Gulf of Maine Cooperative Bottom Longline Survey Database

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This database is for a bottom longline (fixed gear) survey executed in the western and central Gulf of Maine targeting complex rocky habitats. The survey is operated...

Gulf of Mexico Protected Species Assessment Aerial Surveys

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — These data sets include a compilation of aerial line-transect surveys conducted over continental shelf waters of the Gulf of Mexico since 1992. The majority of these...

Gulf of Mexico Marine Mammal Vessel Surveys - NRDA

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Large vessel surveys were conducted during June-August and Oct-Nov, 2010 in the north central Gulf of Mexico to collect data on marine mammal spatial distribution...

First oceanographic atlas of the Gulf of Mexico. National Award of Oceanographic Research

International Nuclear Information System (INIS)

Vidal L., F.; Vidal L., V.M.; Hernandez O., A.

1991-01-01

First oceanographic atlas of the Gulf of Mexico National award of oceanographic research. As a result of the research activities applied by Federal Electricity Commission related with oceanographic studies for nuclear stations siting and licensing in coastal areas, doctors Victor Manuel and Francisco Vidal Lorandi and Master in Sciences Abel Hernandez Ochoa got the oceanographic research National award, instituted recently by Mexican Government, by research work published in Oceanographic Atlas of the Gulf of Mexico, Volume II. Atlas presents synthetized oceanographic information about mexican gulf circulation, as well as residence time and water masses distribution. Atlas includes information related with siting and licensing of nuclear stations on shore and has also application, among others, in petroleum, fishery, maritime transportation, and tourism sectors

Environmental permits in Arab Gulf countries - local government perspective

International Nuclear Information System (INIS)

Kuczynski, L.

2002-01-01

The legacy of past environmentally careless oil and gas exploration practices is becoming more apparent as time goes by and our understanding of causes and results increase. In many petroleum producing countries and in Arab Gulf countries in particular, this understanding has resulted in greater social demand for environmental protection and responsible exploitation of limited resources. In response to this demand, governments of the Gulf Region are paying increasingly more attention to the responsible management of environmental impacts of new developments. As a result, most of them require developers to obtain environmental permits supported by a variety of environmental baseline studies, Environmental Impact Assessments and comprehensive Environmental Management Plans. These local environmental requirements are similar to those in North America and Europe, although there are some important differences on account of local environmental, historical and socioeconomic conditions. Developers, who choose to ignore them, often find their projects caught in a web of unfamiliar environmental regulations or administrative procedures that may cause costly and unnecessary delays. Based on the author's Canadian and Arab Gulf regulatory experience, this paper describes some common causes that may delay obtaining environmental permits or cause cancellation of a project, and provides ideas to assist companies in securing necessary permits and licenses. (author)

The glacial geology and landscape of Strathmore and adjoining offshore zone, with especial reference to 1:10 000 scale Sheet NO76NW

OpenAIRE

Golledge, N.R.; Stoker, M.S.

2004-01-01

This report describes the Bedrock and Superficial Geology of 1:10 000 Sheet NO76NW (Craig of Garvock) within the Strathmore area of eastern Scotland. It forms part of the revision of Montrose 1:50 000 Geological Sheet (57E). Strathmore forms a low vale bounded to the north by the Highland Boundary Fault (HBF), and to the south by the Sidlaw Hills. NO76NW is underlain by a Devonian sedimentary sequence with interdigitating contemporaneous igneous sheets. The northern edge of the field-ma...

Seasonal and Interannual Variability in Gulf of Maine Hydrodynamics: 2002–2011

OpenAIRE

Li, Yizhen; He, Ruoying; McGillicuddy, Dennis J.

2014-01-01

In situ observations including long-term moored meteorological and oceanographic measurements and multi-year gulf-wide ship survey data are used to quantify interannual variability of surface wind, river runoff, and hydrographic conditions in the Gulf of Maine during summers 2002–2011. The cumulative upwelling index shows that upwelling (downwelling)-favorable wind conditions were most persistent in 2010 (2005) over the 10-year study period. River discharge was highest in 2005; peak runoff oc...

Policing Iranian Sanctions: Trade, Identity, and Smuggling Networks in the Arabian Gulf

Science.gov (United States)

2013-03-01

Kegan Paul International, 1994), 9–10. 22 A.W. Stiffe, “Ancient Trading Centres of the Persian Gulf: VII Bahrain,” The Geographical Journal 18, no... Kegan Paul International, 1994. Al Naboodah, H.M. “The Commercial Activity of Bahrain and Oman in the Early Middle Ages.” Proceedings of the...Byman, Daniel and Jerrold Green . Political Violence and Stability in the States of the Northern Persian Gulf. California: RAND, 1999. Castles

CRED SVP Drifting Buoy Argos_ID 30291 Data in the NW Hawaiian Islands, 20020920-20050105 (NODC Accession 0049436)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30291 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

CRED APEX Drifting Buoy Argos_ID 24963 Data in the NW Hawaiian Islands, 200109-200506 (NODC Accession 0049436)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — CRED APEX drifter Argos_ID 24963 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. APEX drifter data files...

Mineral assemblages and their distribution patterns in the sediments of the Gulf of Bohai Sea

Energy Technology Data Exchange (ETDEWEB)

Chen, L; Luan, Z; Zheng, T; Xu, W; Dong, T

1980-01-01

This paper presents the results of a study on the mineral assemblages and their distribution patterns in the sediments of the Gulf of Bohai Sea. The 212 bottom-surface sediment samples were collected from the Gulf of Bohai Sea and its tributaries.

Upper Permian ostracode assemblage from the Jadar Block (Vardar zone, NW Serbia

Directory of Open Access Journals (Sweden)

Crasquin Sylvie

2010-01-01

Full Text Available Ostracodes from the Changhsingian (latest Permian age in the uppermost part of the “Bituminous Limestone” Formation of the Komirić Section in NW Serbia (Jadar Block, Vardar Zone are described and illustrated. Three new species of ostracodes are introduced: Basslerella jadarensis n. sp., Acratia serbianella n. sp., and Knoxiella vardarensis n. sp. The ostracode assemblage, together with conodonts and foraminifers, is the first record of the youngest Late Permian age microfaunas from Serbia and from the central part of the Balkan Peninsula.

Extreme Hurricane-Generated Waves in Gulf of Mexico

National Research Council Canada - National Science Library

Alberto, Carlos; Fernandes, Santos

2005-01-01

.... Data from seven National Data Buoy Center (NDBC) buoys in the Gulf of Mexico, together with an array of pressure and pressure-velocity sensors deployed on the Florida Panhandle shelf during the Office of Naval Research (ONR...

Alternative surveillance technology for the Gulf of Mexico

Science.gov (United States)

2004-04-26

In the Gulf of Mexico, there are two major operating aviation users: low altitude offshore and high altitude. The low altitude offshore operators are primarily helicopter fleets supporting the oil and gas exploration efforts; their traffic typically ...

78 FR 56217 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fisheries of the Gulf of...

Science.gov (United States)

2013-09-12

... Atlantic States AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric... specified in 50 CFR part 622, Subparts A through R for reef fish, red drum, coastal migratory pelagics, and spiny lobster in the Gulf of Mexico, and snapper-grouper, coastal migratory pelagics, dolphin and wahoo...

A cold wind from Texas: Gulf's new chief executive slashes costs and bails out of Russia

International Nuclear Information System (INIS)

Koch, G.

1995-01-01

The Houston-based Torch Energy Advisers Inc. purchased 25% of Gulf Canada Resources Ltd. in November 1994. Torch Energy Advisers' president J.P. Bryan started to restructure the debt-ridden company by letting go of seven of Gulf's nine vice presidents. Later, he pulled Gulf out of Komi Arctic Oil, a problem-plagued joint venture in Russia. A recent analysis of major petroleum companies by Doig's Digest showed that Gulf was among the least efficient producers, with only 21 barrels of crude oil per employee per day in 1993. In order to improve the productivity, a cut of from 10 to 30 per cent of headquarters' staff was predicted. The ultimate goal was rumored to be a 15 per cent reduction in overhead, and up to 30 per cent reduction in operating costs

Hydrographic Conditions in the Gulf of Carpentaria During Australian Monsoon Experiment

Science.gov (United States)

Inoue, M.; Steinberg, C.; Wolanski, E.; Ridd, P.

2002-12-01

Gulf of Carpentaria located in the northern Australia, is a shallow wide basin with the deepest bottom depths of approximately 60 m. It is connected to Arafura Sea to the north and west, and to the Torres Strait to the east. Hydrographic surveys of the Gulf of Carpentaria were carried out in January and March, 1987 as part of Australian Monsoon Experiment. During the January survey, Tropical Cyclone (TC) Irma was formed in the Gulf of Carpentaria. An east-west CTD section at 13o52'S was occupied twice, one prior to and during, and the other after the formation of TC Irma. In addition, two post-Irma east-west sections were occupied at 12o40'S and 11o30'S. The pre-cyclone section indicates a well-defined stratified two-layer system, while the post-cyclone sections show deepening of the surface warm layer due to significant mixing by TC Irma. Overall, significant cooling of near surface warm water on the order of more than 1oC was observed. Significant heat loss estimated for the water column has presumably contributed toward the development of TC Irma. In February 1987, TC Jason was formed in the gulf. During the March survey, two east-west CTD sections were occupied at 11o30'S and 13o52'S. The March survey reveals notable warming of the bottom water. Detailed discussion of the CTD data from the two cruises will be presented.

Prospects for Gulf Region with closed greenhouse

NARCIS (Netherlands)

Campen, J.B.

2009-01-01

In countries such as Saudi Arabia and the United Arab Emirates, water is scarce as rainfall is minimal. Growers in the Gulf Region rely on groundwater for evaporative cooling and irrigation. This source of water is running out and growers are deciding to end production. The governments of the

Temperature, salinity, nutrients, freons, oxygen, currents (ADCP), underway and other measurements collected in the Gulf of Mexico and Atlantic as part of the Gulf of Mexico and East Coast Carbon Cruise (GOMECC) 2007 (NODC Accession 0066603)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — GOMECC Gulf of Mexico and East Coast Carbon Cruise(RB 07-05). North American Carbon Program (NACP) Gulf of Mexico and East Coast Carbon (GOMECC) Cruise on board NOAA...

Gulf of Mexico Sperm Whale Acoustic Prey Study

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Large vessel surveys were conducted during the summer of 2009 and the winter of 2010 in the north-central Gulf of Mexico to examine the spatial distribution of sperm...

Gulf of Mexico Marine Mammal Assessment Vessel Surveys

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — These data sets are a compilation of large vessel surveys for marine mammal stock assessments in the Gulf of Mexico from 1991 to the present. These are designed as...

Continental slope sea level and flow variability induced by lateral movements of the Gulf Stream in the Middle Atlantic Bight

Science.gov (United States)

Böhm, E.; Hopkins, T. S.; Pietrafesa, L. J.; Churchill, J. H.

2006-08-01

As described by [Csanady, G.T., Hamilton, P., 1988. Circulation of slope water. Continental Shelf Research 8, 565-624], the flow regime over the slope of the southern Middle Atlantic Bight (MAB) includes a current reversal in which southwestward flow over the upper and middle slope becomes entrained in the northeastward current adjacent to the Gulf Stream. In this paper we use satellite-derived data to quantify how lateral motions of the Gulf Stream impact this current system. In our analysis, the Gulf Stream’s thermal front is delineated using a two-year time series of sea surface temperature derived from NOAA/AVHRR satellite data. Lateral motions of the Gulf Stream are represented in terms of temporal variations of the area, east of 73°W, between the Gulf Stream thermal front and the shelf edge. Variations of slope water flow within this area are represented by anomalies of geostrophic velocity as derived from the time series of the sea level anomaly determined from TOPEX/POSEIDON satellite altimeter data. A strong statistical relationship is found between Gulf Stream displacements and parabathic flow over the continental slope. It is such that the southwestward flow over the slope is accelerated when the Gulf Stream is relatively far from the shelf edge, and is decelerated (and perhaps even reversed) when the Gulf Stream is close to the shelf edge. This relationship between Gulf Stream displacements and parabathic flow is also observed in numerical simulations produced by the Miami Isopycnic Coordinate Model. In qualitative terms, it is consistent with the notion that when the Gulf Stream is closer to the 200-m isobath, it is capable of entraining a larger fraction of shelf water masses. Alternatively, when the Gulf Stream is far from the shelf-break, more water is advected into the MAB slope region from the northeast. Analysis of the diabathic flow indicates that much of the cross-slope transport by which the southwestward flow entering the study region is

CEER 2014 Dedicated Session Proposal: Restoring Water Quality along with Restoring the Gulf of Mexico

Science.gov (United States)

This session focuses on the importance of restoring water quality as part of the larger Gulf of Mexico restoration efforts. Water quality has been identified as a significant indicator of water body condition, and Gulf waters have been impacted by increased urban development, agr...

Feeding by grey seals in the Gulf of St. Lawrence and around Newfoundland

Directory of Open Access Journals (Sweden)

M O Hammill

2007-01-01

Full Text Available Diet composition of grey seals in the Gulf of St. Lawrence (Gulf and around the coast of Newfoundland, Canada, was examined using identification of otoliths recovered from digestive tracts. Prey were recovered from 632 animals. Twenty-nine different prey taxa were identified. Grey seals sampled in the northern Gulf of St. Lawrence fed mainly on capelin, mackerel, wolffish and lumpfish during the spring, but consumed more cod, sandlance and winter flounder during late summer. Overall, the southern Gulf diet was more diverse, with sandlance, Atlantic cod, cunner, white hake and Atlantic herring dominating the diet. Capelin and winter flounder were the dominant prey in grey seals sampled from the east coast of Newfoundland, while Atlantic cod, flatfish and capelin were the most important prey from the south coast. Animals consumed prey with an average length of 20.4 cm (Range 4.2-99.2 cm. Capelin were the shortest prey (Mean = 13.9 cm, SE = 0.08, N = 1126, while wolffish were the longest with the largest fish having an estimated length of 99.2 cm (Mean = 59.4, SE = 2.8, N = 63. In the early 1990s most cod fisheries in Atlantic Canada were closed because of the collapse of the stocks. Since then they have shown limited sign of recovery. Diet samples from the west coast of Newfoundland indicate a decline in the contribution of cod to the diet from the pre-collapse to the postcollapse period, while samples from the southern Gulf indicate little change in the contribution of cod.

The Role of Rift Obliquity in Formation of the Gulf of California

Science.gov (United States)

Bennett, Scott Edmund Kelsey

The Gulf of California illustrates how highly oblique rift geometries, where transform faults are kinematically linked to large-offset normal faults in adjacent pull-apart basins, enhance the ability of continental lithosphere to rupture and, ultimately, hasten the formation of new oceanic basins. The Gulf of California rift has accommodated oblique divergence of the Pacific and North America tectonic plates in northwestern Mexico since Miocene time. Due to its infancy, the rifted margins of the Gulf of California preserve a rare onshore record of early continental break-up processes from which to investigate the role of rift obliquity in strain localization. Using new high-precision paleomagnetic vectors from tectonically stable sites in north-central Baja California, I compile a paleomagnetic transect of Miocene ignimbrites across northern Baja California and Sonora that reveals the timing and distribution of dextral shear associated with inception of this oblique rift. I integrate detailed geologic mapping, basin analysis, and geochronology of pre-rift and syn-rift volcanic units to determine the timing of fault activity on Isla Tiburon, a proximal onshore exposure of the rifted North America margin, adjacent to the axis of the Gulf of California. The onset of strike-slip faulting on Isla Tiburon, ca. 8 - 7 Ma, was synchronous with the onset of transform faulting along a significant length of the nascent plate boundary within the rift. This tectonic transition coincides with a clockwise azimuthal shift in Pacific-North America relative motion that increased rift obliquity. I constrain the earliest marine conditions on southwest Isla Tiburon to ca. 6.4 - 6.0 Ma, coincident with a regional latest Miocene marine incursion in the northern proto-Gulf of California. This event likely flooded a narrow, incipient topographic depression along a ˜650 km-long portion of the latest Miocene plate boundary and corresponds in time and space with formation of a newly

Petroleum hydrocarbons in offshore sediments from the Gulf

International Nuclear Information System (INIS)

Al-Lihaibi, S.S.; Al-Omran, Laila

1996-01-01

Petroleum hydrocarbons in offshore sediments from the central part of the Gulf were measured using fluorescence spectrophotometry. Concentrations varied between 4.0 and 56.2 μg/g wet sediment (expressed as Kuwait Crude Oil equivalents), with an average of 12.3 μ/g. Highest concentrations were recorded in the north-west sector, with concentrations decreasing in a south-westerly direction. No significant correlations were observed between petroleum hydrocarbons and sedimentary organic carbon (r-0.07), 'mud' content (r=0.09), 'sand' content (r= -0.08) or 'gravel' content (r= -0.12). Distributions of oil are considered to relate more closely to prevailing current and localized pollutant sources in the region. Despite the substantial inputs of oil to the Gulf, contamination can be considered comparatively low, possibly reflecting physical processes and biological degradation which accelerate removal of petroleum from this marine environment. (author)

The Iranian century: the tension between Iran and the Gulf States

OpenAIRE

Al Kaabi, Yousef H.; Al Kaabi, Khaled M.

2011-01-01

The Arabian Gulf represents a significant part in the world because of its oil wealth. During the last thirty years, three wars have taken place in the region resulting in regional and global instability: the Iran-Iraq war; the Persian Gulf War of 1990-1991, and the U.S. led invasion of Iraq in 2003. The fall of Iraq made Iran more powerful in the region, and as a domination strategy, Iran launched its nuclear program. Iran represents a major power in the region; it can destabilize the region...

Swainson's Thrushes do not show strong wind selectivity prior to crossing the Gulf of Mexico.

Science.gov (United States)

Bolus, Rachel T; Diehl, Robert H; Moore, Frank R; Deppe, Jill L; Ward, Michael P; Smolinsky, Jaclyn; Zenzal, Theodore J

2017-10-27

During long-distance fall migrations, nocturnally migrating Swainson's Thrushes often stop on the northern Gulf of Mexico coast before flying across the Gulf. To minimize energetic costs, trans-Gulf migrants should stop over when they encounter crosswinds or headwinds, and depart with supportive tailwinds. However, time constrained migrants should be less selective, balancing costs of headwinds with benefits of continuing their migrations. To test the hypotheses that birds select supportive winds and that selectivity is mediated by seasonal time constraints, we examined whether local winds affected Swainson's Thrushes' arrival and departure at Ft. Morgan, Alabama, USA at annual, seasonal, and nightly time scales. Additionally, migrants could benefit from forecasting future wind conditions, crossing on nights when winds are consistently supportive across the Gulf, thereby avoiding the potentially lethal consequences of depleting their energetic reserves over water. To test whether birds forecast, we developed a movement model, calculated to what extent departure winds were predictive of future Gulf winds, and tested whether birds responded to predictability. Swainson's Thrushes were only slightly selective and did not appear to forecast. By following the simple rule of avoiding only the strongest headwinds at departure, Swainson's Thrushes could survive the 1500 km flight between Alabama and Veracruz, Mexico.

STS-45 Earth observation of the Persian Gulf and the island of Abu Ali

Science.gov (United States)

1992-01-01

STS-45 Earth observation taken aboard Atlantis, Orbiter Vehicle (OV) 104, is of the northern reaches of the Persian Gulf with the sunglint pattern centered on the Saudi Arabian island of Abu Ali. Bright features along the coast are thought to be deposits of oil, released from a terminal offshore of Kuwait during the recent Persian Gulf War. Further up the coast, in Kuwait, the black, oil-soaked desert surrounding the site of the oil well fires is clearly visible. View was taken from an altitude of 160 nautical miles with OV-104 located at 28 degrees north and 52.8 degrees east. During the STS-45 mission, an international survey team focused on oil contamination of the shallow-water habitants in the area north of Abu Ali Island. Crewmembers contacted the NOAA survey vessel, the R/V Mt. Mitchell, several times and photographed water color and sunglint within the study area and throughout the entire Persian Gulf. These photographic data are expected to aid the Persian Gulf researchers in

Coral reefs in Saudi Arabia: 3.5 years after the Gulf War oil spill

Science.gov (United States)

Vogt, I. P.

1995-11-01

As a consequence of the 1991 Gulf War, 6-8 million barrels of oil were released into the marine environment and a total of 1.12 billion barrels were burned in the Kuwaiti oil fields. In order to detect delayed effects of the Gulf War pollution, six permanent transect lines were placed on Saudi Arabian offshore and inshore reefs. A comparison of three sets of video recordings taken between 1992 and 1994 indicated a significant increase in live coral cover. Therefore, it has been concluded that corals in Saudi Arabia survived the largest oil spill on record remarkably unscathed, with no visible signs of immediate or late effects up to 3.5 years after the Gulf War.

S.83: A Bill to ensure the preservation of the Gulf of Mexico by establishing within the Environmental Protection Agency a Gulf of Mexico Program. Introduced in the Senate of the United States, One Hundred Third Congress, First Session, January 21, 1993

International Nuclear Information System (INIS)

Anon.

1993-01-01

S. 83 may be cited as the open-quotes Gulf of Mexico Preservation Act of 1993.close quotes This Bill discusses findings pertaining to resources in the Gulf of Mexico, describes the establishment of the Gulf of Mexico Program, defines the establishment and duties of the Gulf of Mexico Program Office, and proposes a study of international issues. This Bill also includes an assessment to be prepared by the Administrator, a monitoring, management, protection and restoration plan, a grant program, authorization of appropriations, administrative provisions, and the relationship of the Bill to existing federal and state laws and international treaties

Mesoscale air-sea interactions related to tropical and extratropical storms in the Gulf of Mexico

Science.gov (United States)

Lewis, James K.; Hsu, S. A.

1992-01-01

Observations of the lower atmosphere of the northwestern Gulf of Mexico from November 1982 to mid-February 1983 were studied in which seven significant cyclones were generated in the northwestern gulf. It was found that all seven storms occurred when the vorticity correlate of the horizontal air temperature difference was about 3-5 C above the climatological mean difference. It is shown that a maximum in the frequency of tropical storms within the Gulf of Mexico exists some 275 km south of the Mississippi delta at 27 deg N, 90 deg W. This maximum is a result of only those storms which originate within the gulf. Two plausible effects of the Loop Current and its rings on tropical storms are discussed. One is that these ocean features are large and consolidated heat and moisture sources from which a nearby slowly moving atmospheric disturbance can extract energy. The second is that of the cyclonic vorticity that can be generated in the lower atmosphere by such oceanographic features.

Gulf of California species and catch spatial distributions and historical time series - Developing end-to-end models of the Gulf of California

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The purpose of this project is to develop spatially discrete end-to-end models of the northern Gulf of California, linking oceanography, biogeochemistry, food web...

Iran’s scientific dominance and the emergence of South-East Asian countries in the Arab Gulf Region

Energy Technology Data Exchange (ETDEWEB)

Moed, H.

2016-07-01

A longitudinal bibliometric analysis of publications indexed in Thomson Reuters' Incites and Elsevier's Scopus, and published from the Arab Gulf States and neighbouring countries, shows clear effects of major political events during the past 35 years. Predictions made in 2006 by the US diplomat Richard N. Haass on political changes in the Middle East have come true in the Gulf States’ national scientific research systems, to the extent that Iran has become in 2015 by far the leading country in the Arab Gulf, and South-East Asian countries including China, Malaysia and South Korea have become major scientific collaborators, displacing the USA and other large Western countries. But collaborations patterns among Gulf States show no apparent relationship with differences in Islam denominations. (Author)

78 FR 5404 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2013-01-25

... Malinowski, Southeast Regional Office, NMFS, 263 13th Avenue South, St. Petersburg, FL 33701. Instructions... . FOR FURTHER INFORMATION CONTACT: Rich Malinowski, Southeast Regional Office, NMFS, telephone 727-824-5305; email: rich.malinowski@noaa.gov . SUPPLEMENTARY INFORMATION: The reef fish fishery of the Gulf of...

Deep-sea foraminifera from the Cassidaigne Canyon (NW Mediterranean): Assessing the environmental impact of bauxite red mud disposal

NARCIS (Netherlands)

Fontanier, C.; Fabri, M.-C.; Buscail, R.; Biscara, L.; Koho, K.A.; Reichart, G.-J.; Cossa, D.; Galaup, S.; Chabaud, G.; Pigot, L.

2012-01-01

Benthic foraminiferal assemblages were investigated from two sites along the axis of the Cassidaigne Canyon (NW Mediterranean Sea). Both areas are contaminated by bauxite red mud enriched in iron, titanium, vanadium and chromium. These elemental enrichments are related to bauxite-derived

78 FR 71037 - New Orleans & Gulf Coast Railway Company, Inc.-Lease Exemption Containing Interchange Commitment...

Science.gov (United States)

2013-11-27

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35777] New Orleans & Gulf... Company New Orleans & Gulf Coast Railway Company, Inc. (NOGC), a Class III rail carrier, has filed a... to a third-party railroad, BNSF Railway Company and the New Orleans Public Belt are located in very...

The upper mantle beneath the Gulf of California from surface wave dispersion. Geologica Ultraiectina (299)

NARCIS (Netherlands)

Zhang, X.

2009-01-01

This thesis is a study on upper mantle shear velocity structure beneath the Gulf of California. Surface wave interstation dispersion data were measured in the Gulf of California area and vicinity to obtain a 3-D shear velocity structure of the upper mantle. This work has particular significance for

Seasonal and Interannual Variability of Eddy Field and Surface Circulation in the Gulf of Aden

Science.gov (United States)

Al Saafani, M. A.; Shenoi, S. S. C.

2006-07-01

The circulation in the Gulf of Aden is inferred from three different data sets: h istorical sh ip drifts , hydrography , and satellite altimeter derived sea level (Topex/Poseidon, Jason and ERS) . The circulation in th is semi-enclosed basin is marked with strong seasonality with reversals in the direction of flows twice a year follow ing the reversal in mon soonal winds. During the win ter mon soon (November - February) there is an inflow from Arabian Sea; an extension of Arabian Coastal Current (ACC) . During sou thwest mon soon (June - August) the flow is generally towards east especially along the northern coast of Gulf of Aden. The geostrophic currents also show that the circulation in the gulf is embedded with mesoscale eddies. These westward propagating eddies appear to enter the Gulf of Aden from the western Arabian Sea in win ter. The relative contribu tion of mesoscale eddies to the circulation in the gulf were estimated using altimeter derived Sea level anomaly (SLA) for the years 1993 to 2003 . The effect of these mesoscale eddies extend over the entire water colu mn . The propagation speeds, of these eddies, estimated using weekly spaced altimeter derived SLA (2002 - 2003) is ~ 4 .0 - 5 .3 cm s . The sum of the speeds of second mode Ro ssby wave and the mean current (4.8 cm s ) matches with the propagation speeds of eddies estimated using SLA . Hence, second mode baroclin ic Rossby waves appear to be responsib le for the westward propagation of eddies in the Gulf of Aden. The presence of these eddies in the temperaturesalin ity climato logy confirms that they are no t transient features.

Results from the latest SN-4 multi-parametric benthic observatory experiment (MARsite EU project) in the Gulf of Izmit, Turkey: oceanographic, chemical and seismic monitoring

Science.gov (United States)

Embriaco, Davide; Marinaro, Giuditta; Frugoni, Francesco; Giovanetti, Gabriele; Monna, Stephen; Etiope, Giuseppe; Gasperini, Luca; Çağatay, Namık; Favali, Paolo

2015-04-01

An autonomous and long-term multiparametric benthic observatory (SN-4) was designed to study gas seepage and seismic energy release along the submerged segment of the North Anatolian Fault (NAF). Episodic gas seepage occurs at the seafloor in the Gulf of Izmit (Sea of Marmara, NW Turkey) along this submerged segment of the NAF, which ruptured during the 1999 Mw7.4 Izmit earthquake. The SN-4 observatory already operated in the Gulf of Izmit at the western end of the 1999 Izmit earthquake rupture for about one-year at 166 m water depth during the 2009-2010 experiment (EGU2014-13412-1, EGU General Assembly 2014). SN-4 was re-deployed in the same site for a new long term mission (September 2013 - April 2014) in the framework of MARsite (New Directions in Seismic Hazard assessment through Focused Earth Observation in the Marmara Supersite, http://marsite.eu/ ) EC project, which aims at evaluating seismic risk and managing of long-term monitoring activities in the Marmara Sea. A main scientific objective of the SN-4 experiment is to investigate the possible correlations between seafloor methane seepage and release of seismic energy. We used the same site of the 2009-2010 campaign to verify both the occurrence of previously observed phenomena and the reliability of results obtained in the previous experiment (Embriaco et al., 2014, doi:10.1093/gji/ggt436). In particular, we are interested in the detection of gas release at the seafloor, in the role played by oceanographic phenomena in this detection, and in the association of gas and seismic energy release. The scientific payload included, among other instruments, a three-component broad-band seismometer, and gas and oceanographic sensors. We present a technical description of the observatory, including the data acquisition and control system, results from the preliminary analysis of this new multidisciplinary data set, and a comparison with the previous experiment.

78 FR 19176 - Endangered and Threatened Wildlife; 90-day Finding on a Petition to List Sperm Whales in the Gulf...

Science.gov (United States)

2013-03-29

... Deepwater Horizon spill, destruction of coastal habitats, water pollution including the Gulf's ``dead zone... Petition to List Sperm Whales in the Gulf of Mexico as a Distinct Population Segment Under the Endangered... or threatened distinct population segment (DPS) in the Gulf of Mexico. We find that the petition...

Mass coral bleaching in the northern Persian Gulf, 2012

Directory of Open Access Journals (Sweden)

Javid Kavousi

2014-09-01

Full Text Available Coral bleaching events due to elevated temperatures are increasing in both frequency and magnitude worldwide. Mass bleaching was recorded at five sites in the northern Persian Gulf during August and September 2012. Based on available seawater temperature data from field, satellite and previous studies, we suggest that the coral bleaching threshold temperature in the northern Persian Gulf is between 33.5 and 34°C, which is about 1.5 to 2.5°C lower than that in the southern part. To assess the bleaching effects, coral genera counted during 60-minute dives were categorized into four groups including healthy, slightly bleached ( 50% bleached tissue and fully bleached colonies. The anomalously high sea surface temperature resulted in massive coral bleaching (~84% coral colonies affected. Acropora spp. colonies, which are known as the most vulnerable corals to thermal stress, were less affected by the bleaching than massive corals, such as Porites, which are among the most thermo-tolerant corals. Turbid waters, suggested as coral refugia against global warming, did not protect corals in this study since most affected corals were found in the most turbid waters. The 2012 bleaching in the northern Persian Gulf was relatively strong from the viewpoint of coral bleaching severity. Long-term monitoring is needed to understand the actual consequences of the bleaching event on the coral reefs and communities.

The Early to Middle Triassic continental–marine transition of NW Bulgaria: sedimentology, palynology and sequence stratigraphy

Directory of Open Access Journals (Sweden)

Ajdanlijsky George

2018-04-01

Full Text Available Sedimentary facies and cycles of the Triassic continental–marine transition of NW Bulgaria are documented in detail from reference sections along the Iskar river gorge between the villages of Tserovo and Opletnya. The depositional environments evolved from anastomosing and meandering river systems in the Petrohan Terrigenous Group to mixed fluvial and tidal settings in the Svidol Formation, and to peritidal and shallow-marine conditions in the Opletnya Member of the Mogila Formation. For the first time, the palynostratigraphic data presented here allow for dating the transitional interval and for the precise identification of a major sequence boundary between the Petrohan Terrigenous Group and the Svidol Formation (Iskar Carbonate Group. This boundary most probably corresponds to the major sequence boundary Ol4 occurring in the upper Olenekian of the Tethyan realm and thus enables interregional correlation. The identification of regionally traceable sequence boundaries based on biostratigraphic age control is a first step towards a more accurate stratigraphic correlation and palaeogeographic interpretation of the Early to early Middle Triassic in NW Bulgaria.

Comparison of clay mineral stratigraphy to other proxy palaeoclimate indicators in the Mesozoic of NW Europe.

Science.gov (United States)

Ruffell, Alastair; McKinley, Jennifer M; Worden, Richard H

2002-04-15

This paper reviews the opportunities and pitfalls associated with using clay mineralogical analysis in palaeoclimatic reconstructions. Following this, conjunctive methods of improving the reliability of clay mineralogical analysis are reviewed. The Mesozoic succession of NW Europe is employed as a case study. This demonstrates the relationship between clay mineralogy and palaeoclimate. Proxy analyses may be integrated with clay mineralogical analysis to provide an assessment of aridity-humidity contrasts in the hinterland climate. As an example, the abundance of kaolinite through the Mesozoic shows that, while interpretations may be difficult, the Mesozoic climate of NW Europe was subject to great changes in rates of continental precipitation. We may compare sedimentological (facies, mineralogy, geochemistry) indicators of palaeoprecipitation with palaeotemperature estimates. The integration of clay mineralogical analyses with other sedimentological proxy indicators of palaeoclimate allows differentiation of palaeoclimatic effects from those of sea-level and tectonic change. We may also observe how widespread palaeoclimate changes were; whether they were diachronous or synchronous; how climate, sea level and tectonics interact to control sedimentary facies and what palaeoclimate indicators are reliable.

The Early to Middle Triassic continental-marine transition of NW Bulgaria: sedimentology, palynology and sequence stratigraphy

Science.gov (United States)

Ajdanlijsky, George; Götz, Annette E.; Strasser, André

2018-04-01

Sedimentary facies and cycles of the Triassic continental-marine transition of NW Bulgaria are documented in detail from reference sections along the Iskar river gorge between the villages of Tserovo and Opletnya. The depositional environments evolved from anastomosing and meandering river systems in the Petrohan Terrigenous Group to mixed fluvial and tidal settings in the Svidol Formation, and to peritidal and shallow-marine conditions in the Opletnya Member of the Mogila Formation. For the first time, the palynostratigraphic data presented here allow for dating the transitional interval and for the precise identification of a major sequence boundary between the Petrohan Terrigenous Group and the Svidol Formation (Iskar Carbonate Group). This boundary most probably corresponds to the major sequence boundary Ol4 occurring in the upper Olenekian of the Tethyan realm and thus enables interregional correlation. The identification of regionally traceable sequence boundaries based on biostratigraphic age control is a first step towards a more accurate stratigraphic correlation and palaeogeographic interpretation of the Early to early Middle Triassic in NW Bulgaria.

The Late-Quaternary climatic signal recorded in a deep-sea turbiditic levee (Rhône Neofan, Gulf of Lions, NW Mediterranean): palynological constraints

Science.gov (United States)

Beaudouin, Célia; Dennielou, Bernard; Melki, Tarek; Guichard, François; Kallel, Nejib; Berné, Serge; Huchon, Agnès

2004-11-01

Siliciclastic turbidites represent huge volumes of sediments, which are of particular significance for (1) petroleum researchers, interested in their potential as oil reservoirs and (2) sedimentologists, who aim at understanding sediment transport processes from continent to deep-basins. An important challenge when studying marine turbidites has been to establish a reliable chronology for the deposits. Indeed, conventional marine proxies applied to hemipelagic sediments are often unreliable in detrital clays. In siliciclastic turbidites, those proxies can be used only in hemipelagic intervals, providing a poor constraint on their chronology. In this study, we have used sediments from the Rhône Neofan (NW Mediterranean Sea) to demonstrate that pollen grains can provide a high-resolution chronostratigraphical framework for detrital clays in turbidites. Vegetation changes occurring from the end of Marine Isotopic Stage 3 to the end of Marine Isotopic Stage 2 (from ˜30 to ˜18 ka cal. BP) are clearly recorded where other proxies have failed previously, mainly because the scarcity of foraminifers in these sediments prevented any continuous Sea Surface Temperature (SST) record and radiocarbon dating to be obtained. We show also that the use of palynology in turbidite deposits is able to contribute to oceanographical and sedimentological purposes: (1) Pinus pollen grains can document the timing of sea-level rise, (2) the ratio between pollen grains transported from the continent via rivers and dinoflagellate cysts (elutriating) allows us to distinguish clearly detrital sediments from pelagic clays. Finally, taken together, all these tools show evidence that the Rhône River disconnected from the canyon during the sea-level rise and thus evidence the subsequent rapid starvation of the neofan at 18.5 ka cal. BP. Younger sediments are hemipelagic: the frequency of foraminifers allowed to date sediments with radiocarbon. First results of Sea Surface Temperature obtained on

Influence of the Istranca-Rhodope Massifs and strands of the North Anatolian Fault on oil potential of Thrace Basin, NW Turkey

International Nuclear Information System (INIS)

Coskun, B.

2000-01-01

The Thrace Basin (NW Turkey) is an intermontane trough bounded to the north and west by the granitic and metamorphic rocks of the Istranca and Rhodope Massifs. Recent subsurface studies of the NW portion of the Thrace Basin have led to the identification of two trends in geothermal gradient, both of which are oriented approximately NW-SE (i.e. parallel to the depositional axis of the basin). Geological and geophysical data indicate that, due to the thrust of the Istranca Massif upon the Rhodope Massif, the subsurface temperature may have increased in the northern part of the basin. Other controls were wrench-fault activity of the Splays of the North Anatolian Fault (SNAF) and continuing basinal subsidences. The thermal history of the southern part of the basin was affected by Miocene ophiolitic emplacement to the west in Greece. The presence of a belt of intrabasinal palaeotopography (mainly Palaeozoic rocks) also contributed to increased geothermal gradients in the southern part of the study area. The basin is divisible into northern and southern zones of subsidence, which are separated by the Kuleli-Babaeski High. During the Oligocene, subsidence rates were highest in the northern zone and in the western sector of the southern zone. Later, during the Miocene, basin subsidence was associated with intense tectonic activity of the SNAF and with the emplacement of ophiolites to the west. A map of the top of the oil generation zone, based on TTI values calculated by the Lopatin method, indicates the presence of two maturation zones in the basin ; these were separated by the Late Oligocene Kuleli-Babaeski High. Oil generation in these zones was influenced by rapid subsidence, by a NW-SE oriented wrench fault system associated with the NAF and also by tectonic activity of the Istranca and Rhodope Massifs in the study area

2009 Survey of Gulf of Mexico Dockside Seafood Processors

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This survey gathered and analyze economic data from seafood processors throughout the states in the Gulf region. The survey sought to collect financial variables...

Critical research needs for identifying future changes in Gulf coral reef ecosystems

Science.gov (United States)

Feary, David A.; Burt, John A.; Bauman, Andrew G.; Al Hazeem, Shaker; Abdel-Moati, Mohamed A.; Al-Khalifa, Khalifa A.; Anderson, Donald M.; Amos, Carl; Baker, Andrew; Bartholomew, Aaron; Bento, Rita; Cavalcante, Geórgenes H.; Chen, Chaolun Allen; Coles, Steve L.; Dab, Koosha; Fowler, Ashley M.; George, David; Grandcourt, Edwin; Hill, Ross; John, David M.; Jones, David A.; Keshavmurthy, Shashank; Mahmoud, Huda; Moradi Och Tapeh, Mahdi; Mostafavi, Pargol Ghavam; Naser, Humood; Pichon, Michel; Purkis, Sam; Riegl, Bernhard; Samimi-Namin, Kaveh; Sheppard, Charles; Vajed Samiei, Jahangir; Voolstra, Christian R.; Wiedenmann, Joerg

2014-01-01

Expert opinion was assessed to identify current knowledge gaps in determining future changes in Arabian/ Persian Gulf (thereafter ‘Gulf’) coral reefs. Thirty-one participants submitted 71 research questions that were peer-assessed in terms of scientific importance (i.e., filled a knowledge gap and was a research priority) and efficiency in resource use (i.e., was highly feasible and ecologically broad). Ten research questions, in six major research areas, were highly important for both understanding Gulf coral reef ecosystems and also an efficient use of limited research resources. These questions mirrored global evaluations of the importance of understanding and evaluating biodiversity, determining the potential impacts of climate change, the role of anthropogenic impacts in structuring coral reef communities, and economically evaluating coral reef communities. These questions provide guidance for future research on coral reef ecosystems within the Gulf, and enhance the potential for assessment and management of future changes in this globally significant region. PMID:23643407

The Persian Gulf Region as a Field of China’s Geopolitical Interests

Directory of Open Access Journals (Sweden)

M F Ilminskaya

2015-12-01

Full Text Available The article analyzes the political situation in the Gulf region in the light of China’s vital interests. Particular attention is paid to Chinese energy diplomacy, mechanisms for bilateral and multilateral cooperation, the Chinese project that is expected to revive the «Great Silk Road» and the priority areas of Chinese energy security. The author considers China as the largest world energy consumer whose economy is directly dependent on oil supplies, primarily from the Persian Gulf region. The article also analyzes the reasons of acute energy shortages in China and its growing interest in the Gulf region. The author reveals strategic significance of such important water transport arteries, as Straits of Hormuz and Malacca, touches on the issue of global players’ competition over ownership and control of hydrocarbons. The article focuses on flexibility of Chinese diplomacy and foreign policy maneuvering techniques in the region, successfully applied by Beijing to maximize the benefits for the implementation of its own national interests.

After the Gulf crisis: The third oil shock is yet to come

International Nuclear Information System (INIS)

Criqui, P.

1991-01-01

The Gulf crisis had a major impact on world oil markets: for several months the flow of oil and the capacity to produce oil in the future in several key oil-producing countries were directly or indirectly threatened. A genuine oil shock was avoided because those who are involved in oil markets and in related international organizations maintained their composure. However, an examination of market fundamentals suggests that a return to strong dependence on supplies from the Gulf is probable during this decade if the price of oil does not rise sufficiently to bring about a growth trend in oil production by non-OPEC countries consistent with growth in world oil consumption. An analysis is presented of the oil price trends prior to, during and subsequent to the Gulf crisis, and two alternative scenarios are detailed for the year 2000: sustainable vs a third oil shock. 30 refs., 6 figs., 1 tab

Efeito do lipopolissacarídio bacteriano sobre o esvaziamento gástrico de ratos: avaliação do pré-tratamento com Nw-nitro-L-arginine methyl ester (L-NAME The effect of bacterial lipopolysaccharide on the gastric emptying of rats: a pretreatment evaluation using Nw-nitro-L-arginine methyl ester (L-NAME

Directory of Open Access Journals (Sweden)

Edgard Ferro Collares

2006-09-01

Full Text Available RACIONAL: Há evidências de que o óxido nítrico participa do mecanismo de retardo do esvaziamento gástrico determinado pelo lipopolissacarídio bacteriano. OBJETIVO: Avaliar o efeito do pré-tratamento com Nw-nitro-L-arginine methyl ester, um inibidor competitivo das óxido nítrico-sintetases, sobre o fenômeno. MATERIAL E MÉTODOS: Utilizaram-se ratos, Wistar, machos, SPF ("specific-pathogen free", adultos, adaptados às condições do laboratório, que após 24 horas de jejum alimentar foram pré-tratados endovenosamente com veículo (salina ou Nw-nitro-L-arginine methyl ester nas doses de 0,5, 1, 2,5 e 5 mg/kg. No tratamento, administrou-se endovenosamente veículo (salina ou lipopolissacarídio (50 µg/kg. O intervalo entre o pré-tratamento e o tratamento foi de 10 minutos, e entre este e a avaliação do esvaziamento gástrico foi de 60 minutos. O esvaziamento gástrico foi avaliado indiretamente através da determinação da retenção gástrica da solução salina marcada com fenol vermelho 10 minutos após administração por via orogástrica. RESULTADOS: Entre os animais pré-tratados com veículo, o tratamento com lipopolissacarídio determinou elevação significativa da retenção gástrica (média = 57% em relação aos tratados com veículo (38,1%. O pré-tratamento com as diferentes doses de Nw-nitro-L-arginine methyl ester não modificou a retenção gástrica nos animais controles do tratamento. O pré-tratamento com Nw-nitro-L-arginine methyl ester com a dose de 1 mg/kg determinou redução discreta, mas significativa, na retenção gástrica (52% nos animais tratados com lipopolissacarídio, em relação ao observado naqueles com pré-tratamento e tratamento com veículo (35,9%. Nos animais pré-tratados com 2,5 e 5 mg/kg de Nw-nitro-L-arginine methyl ester e tratados com lipopolissacarídio, houve aumento significante da retenção gástrica (74,7% e 80,5%, respectivamente em relação aos seus controles pr

The geostatistical approach for structural and stratigraphic framework analysis of offshore NW Bonaparte Basin, Australia

International Nuclear Information System (INIS)

Wahid, Ali; Salim, Ahmed Mohamed Ahmed; Yusoff, Wan Ismail Wan; Gaafar, Gamal Ragab

2016-01-01

Geostatistics or statistical approach is based on the studies of temporal and spatial trend, which depend upon spatial relationships to model known information of variable(s) at unsampled locations. The statistical technique known as kriging was used for petrophycial and facies analysis, which help to assume spatial relationship to model the geological continuity between the known data and the unknown to produce a single best guess of the unknown. Kriging is also known as optimal interpolation technique, which facilitate to generate best linear unbiased estimation of each horizon. The idea is to construct a numerical model of the lithofacies and rock properties that honor available data and further integrate with interpreting seismic sections, techtonostratigraphy chart with sea level curve (short term) and regional tectonics of the study area to find the structural and stratigraphic growth history of the NW Bonaparte Basin. By using kriging technique the models were built which help to estimate different parameters like horizons, facies, and porosities in the study area. The variograms were used to determine for identification of spatial relationship between data which help to find the depositional history of the North West (NW) Bonaparte Basin

The geostatistical approach for structural and stratigraphic framework analysis of offshore NW Bonaparte Basin, Australia

Energy Technology Data Exchange (ETDEWEB)

Wahid, Ali, E-mail: ali.wahid@live.com; Salim, Ahmed Mohamed Ahmed, E-mail: mohamed.salim@petronas.com.my; Yusoff, Wan Ismail Wan, E-mail: wanismail-wanyusoff@petronas.com.my [Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 32610 Tronoh, Perak (Malaysia); Gaafar, Gamal Ragab, E-mail: gaafargr@gmail.com [Petroleum Engineering Division, PETRONAS Carigali Sdn Bhd, Kuala Lumpur (Malaysia)

2016-02-01

Geostatistics or statistical approach is based on the studies of temporal and spatial trend, which depend upon spatial relationships to model known information of variable(s) at unsampled locations. The statistical technique known as kriging was used for petrophycial and facies analysis, which help to assume spatial relationship to model the geological continuity between the known data and the unknown to produce a single best guess of the unknown. Kriging is also known as optimal interpolation technique, which facilitate to generate best linear unbiased estimation of each horizon. The idea is to construct a numerical model of the lithofacies and rock properties that honor available data and further integrate with interpreting seismic sections, techtonostratigraphy chart with sea level curve (short term) and regional tectonics of the study area to find the structural and stratigraphic growth history of the NW Bonaparte Basin. By using kriging technique the models were built which help to estimate different parameters like horizons, facies, and porosities in the study area. The variograms were used to determine for identification of spatial relationship between data which help to find the depositional history of the North West (NW) Bonaparte Basin.

Petrology, isotopic and fluid inclusion studies of eclogites from Sujiahe, NW Dabie Shan (China), July 1 2002

NARCIS (Netherlands)

Fu, B.; Zheng, Y.-F.; Touret, J.L.R.

2002-01-01

In addition to the Triassic Hong'an low-T-high-P eclogite and the Xinxian coesite-bearing kyanite-glaucophane eclogite, Silurian coesite-free amphibole eclogites occur in the Sujiahe region, NW Dabie Shan of central China. A comprehensive study of petrology, Nd-Sr, O-H isotopes and fluid inclusions

Evaluation of the rusle and disturbed wepp erosion models for predicting soil loss in the first year after wildfire in NW Spain.

Science.gov (United States)

Fernández, Cristina; Vega, José A

2018-05-04

Severe fire greatly increases soil erosion rates and overland-flow in forest land. Soil erosion prediction models are essential for estimating fire impacts and planning post-fire emergency responses. We evaluated the performance of a) the Revised Universal Soil Loss Equation (RUSLE), modified by inclusion of an alternative equation for the soil erodibility factor, and b) the Disturbed WEPP model, by comparing the soil loss predicted by the models and the soil loss measured in the first year after wildfire in 44 experimental field plots in NW Spain. The Disturbed WEPP has not previously been validated with field data for use in NW Spain; validation studies are also very scarce in other areas. We found that both models underestimated the erosion rates. The accuracy of the RUSLE model was low, even after inclusion of a modified soil erodibility factor accounting for high contents of soil organic matter. We conclude that neither model is suitable for predicting soil erosion in the first year after fire in NW Spain and suggest that soil burn severity should be given greater weighting in post-fire soil erosion modelling. Copyright © 2018 Elsevier Inc. All rights reserved.

Coral reefs in the Gulf are mostly dead now, but can we do anything about it?

Science.gov (United States)

Sheppard, Charles

2016-04-30

This article discusses two key issues: firstly, the demise of reefs in the Gulf which is happening probably more rapidly than elsewhere; and secondly, the reasons why this remains such an intractable problem. Most reasons for this decline are scientifically well understood, though clearly not by the region's managers. Several factors may cause people to ignore the problem, even though habitat loss is vastly costly to the region. About 70% of the Gulf's reefs have essentially disappeared in a few decades, and although scientific indicators confirm that this is happening, it is commonly discounted as even being a possibility. Management of human interactions with the Gulf's marine systems remains very inadequate, to the detriment of the Gulf's marine systems and its people. It is clear that this not a scientific issue any longer but rather it is a political problem and failure. Copyright © 2015 Elsevier Ltd. All rights reserved.

Trophic ecology of Atlantic Bluefin Tuna (Thunnus thynnus [corrected] larvae from the Gulf of Mexico and NW Mediterranean spawning grounds: A Comparative Stable Isotope Study.

Directory of Open Access Journals (Sweden)

Raúl Laiz-Carrión

Full Text Available The present study uses stable isotopes of nitrogen and carbon (δ15Nandδ13C as trophic indicators for Atlantic bluefin tuna larvae (BFT (6-10 mm standard length in the highly contrasting environmental conditions of the Gulf of Mexico (GOM and the Balearic Sea (MED. These regions are differentiated by their temperature regime and relative productivity, with the GOM being significantly warmer and more productive. MED BFT larvae showed the highest δ15N signatures, implying an elevated trophic position above the underlying microzooplankton baseline. Ontogenetic dietary shifts were observed in the BFT larvae from the GOM and MED which indicates early life trophodynamics differences between these spawning habitats. Significant trophic differences between the GOM and MED larvae were observed in relation to δ15N signatures in favour of the MED larvae, which may have important implications in their growth during their early life stages.These low δ15N levels in the zooplankton from the GOM may be an indication of a shifting isotopic baseline in pelagic food webs due to diatrophic inputs by cyanobacteria. Lack of enrichment for δ15N in BFT larvae compared to zooplankton implies an alternative grazing pathway from the traditional food chain of phytoplankton-zooplankton-larval fish. Results provide insight for a comparative characterization of the trophic pathways variability of the two main spawning grounds for BFT larvae.

The Political Structure at Basra Gulf in the Period of Ali b. Ebu Talib and Yezid b. Muaviye

Directory of Open Access Journals (Sweden)

Taner YILDIRIM

2011-06-01

Full Text Available At this work about the political structure of the Basra Gulf, we dwelled upon the general geography of the district and its political history. The political situation of the district in this period is assessed in a way that comprises especially the period of Hz. Ali the fourth caliph of early islamic period Muaviya, the first Emevi caliph, and his son Yazid in the light of political developments in that period. When we took up Gulf of Basra we saw that the region of the Gulf is a very important strategic lacation. So since the most prohestoric period this area have got a lot of civilizations, big wars, social events and contentions. We saw that in the time of the region that we take up, the pozition of the Gulf area have gotten similar events in the past. Consequently, the area of the Gulf have owned most active pozition in that term that we take up. Especially because of the land trade roads, sea trade roads and riwer trade roads, Gulf of Basra have owned a very active junction at all time in the past and we easily guess that it will be protect its status in the future, too

Sea Level Variations in Gulf of Thailand.

Science.gov (United States)

1981-03-01

the astrono - mical tides alone. One purpose of thesis is to assess the importance of some of the non-astronomical factors in the Gulf of Thailand. 14...diurnal and diurnal tide components from the non-harmonic components of the hourly height. Then the non- astrono - mical part of the height change can be seen

77 FR 56749 - Gulf Coast Ecosystem Restoration

Science.gov (United States)

2012-09-13

... laws of the United States of America, including section 311 of the Federal Water Pollution Control Act (FWPCA) (33 U.S.C. 1321), section 1006 of the Oil Pollution Act of 1990 (33 U.S.C. 2706), and section 301.... The Task Force's Gulf of Mexico Regional Ecosystem Restoration Strategy (Strategy), created with input...

Water Stratification Raster Images for the Gulf of Maine

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This geodatabase contains seasonal water stratification raster images for the Gulf of Maine. They were created by interpolating water density (sigma t) values at 0...

Citizenship and migration in Arab Gulf monarchies

DEFF Research Database (Denmark)

Sater, J.

2014-01-01

In many industrialized countries, the issue of migration has traditionally raised the question of whether migrant groups fully enjoy citizenship rights. Political debates about models of migration emphasize either the values of cultural diversity or the value of integration into 'host' societies,...... the lack of both integration and citizenship is a defining principle. Using these two perspectives, this article examines the relationship between citizenship rights and migration in the Gulf region, drawing on data from the UAE along with Bahrain, Kuwait, and Qatar.......In many industrialized countries, the issue of migration has traditionally raised the question of whether migrant groups fully enjoy citizenship rights. Political debates about models of migration emphasize either the values of cultural diversity or the value of integration into 'host' societies......, whereas fear and security concerns are often embedded in more populist debates. In the Arab Gulf region, as in many other regions, such as East Asia, this debate has taken distinctively different shapes, partially because the concept of citizenship remains a contested notion not just with regard...

NW-MILO Acoustic Data Collection

Energy Technology Data Exchange (ETDEWEB)

Matzner, Shari; Myers, Joshua R.; Maxwell, Adam R.; Jones, Mark E.

2010-02-17

There is an enduring requirement to improve our ability to detect potential threats and discriminate these from the legitimate commercial and recreational activity ongoing in the nearshore/littoral portion of the maritime domain. The Northwest Maritime Information and Littoral Operations (NW-MILO) Program at PNNL’s Coastal Security Institute in Sequim, Washington is establishing a methodology to detect and classify these threats - in part through developing a better understanding of acoustic signatures in a near-shore environment. The purpose of the acoustic data collection described here is to investigate the acoustic signatures of small vessels. The data is being recorded continuously, 24 hours a day, along with radar track data and imagery. The recording began in August 2008, and to date the data contains tens of thousands of signals from small vessels recorded in a variety of environmental conditions. The quantity and variety of this data collection, with the supporting imagery and radar track data, makes it particularly useful for the development of robust acoustic signature models and advanced algorithms for signal classification and information extraction. The underwater acoustic sensing system is part of a multi-modal sensing system that is operating near the mouth of Sequim Bay. Sequim Bay opens onto the Straight of Juan de Fuca, which contains part of the border between the U.S. and Canada. Table 1 lists the specific components used for the NW-MILO system. The acoustic sensor is a hydrophone permanently deployed at a mean depth of about 3 meters. In addition to a hydrophone, the other sensors in the system are a marine radar, an electro-optical (EO) camera and an infra-red (IR) camera. The radar is integrated with a vessel tracking system (VTS) that provides position, speed and heading information. The data from all the sensors is recorded and saved to a central server. The data has been validated in terms of its usability for characterizing the

Gulf of Mexico Helicopter Offshore System Technologies Recommended Development Path

Science.gov (United States)

Koenke, Edmund J.; Williams, Larry; Calafa, Caesar

1999-01-01

The National Aeronautics and Space Administration (NASA) Advanced Air Transportation Technologies (AATT) project in cooperation with the Department of Transportation (DOT) Volpe National Transportation Systems Center (VNTSC) contracted with the System Resources Corporation (SRC) for the evaluation of the existing environment and the identification of user and service provider needs in the Gulf of Mexico low-altitude Offshore Sector. The results of this contractor activity are reported in the Gulf of Mexico Helicopter Offshore System Technologies Engineering Needs Assessment. A recommended system design and transition strategy was then developed to satisfy the identified needs within the constraints of the environment. This work, also performed under contract to NASA, is the subject of this report.

78 FR 12012 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2013-02-21

... recreational shallow-water grouper (SWG) fixed seasonal closure, which are in place to prevent overfishing of... the Gulf gag and other SWG resources and prevent overfishing from the stocks in the SWG complex. DATES... regional fishery management councils to prevent overfishing and achieve, on a continuing basis, OY from...

76 FR 23904 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Science.gov (United States)

2011-04-29

... restaurants will be hurt by this closure. People will start limiting their trips to the Gulf coast because of... shops, hotels, and restaurants. The Council considered several closure options, including spring and... owned and operated, is not dominant in its field of operation (including its affiliates), and has...

Fine-Scale Biogeographical Boundary Delineation and Sub-population Resolution in the Symbiodinium thermophilum Coral Symbiont Group From the Persian/Arabian Gulf and Gulf of Oman

KAUST Repository

Hume, Benjamin C. C.

2018-04-24

The adaptation of tropical coral communities to the world\\'s hottest sea, the Persian/Arabian Gulf (PAG), has recently been associated with ecological selection acting on a group of coral-associated algal symbionts, the Symbiodinium thermophilum group. Previous studies have shown that considerable genetic diversity exists within the group and that group members found within the PAG are significantly differentiated from those found externally, in the Gulf of Oman and wider waters. However, little is known about this genetic diversity. As an initial step towards understanding whether this diversity could represent niche adapted, selectable populations within the S. thermophilum group that may act as natural sources of stress tolerant associations to Indo-Pacific reefs, we investigate whether the diversity is structured between populations and where the location of the internal-external genetic partition lies. We use regions of the nuclear ribosomal DNA (ITS1-5.8S-ITS2) and chloroplastic psbA gene (non-coding region) from >100 S. thermophilum group-harbouring Porites spp. (P. lobata, P. lutea, and P. harrisoni) sampled across steep temperature and salinity gradients to conduct analyses of variance and create maximum parsimony networks to assess genetic structure and (dis)similarity within and between populations of S. thermophilum found within the PAG and externally in the Gulf of Oman. Our analyses resolve a sharp genetic boundary between Symbiodinium populations in the western Strait of Hormuz and identify significant genetic structure between populations with as little as 20 km between them demonstrating that differentiation between populations is likely due to factors other than limited connectivity. Further, we hypothesize that genotypes identified outside of the PAG in the Gulf of Oman existing in near-oceanic salinities, yet thermally challenging waters, putatively represent candidates for stress-tolerant symbionts that could act as natural seed populations of

Diet of bonnethead shark in eastern Gulf of Mexico

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — To examine variation in diet and daily ration of the bonnethead, Sphyrna tiburo (Linnaeus, 1758), sharks were collected from three areas in the eastern Gulf of...

Water Density Raster Images for the Gulf of Maine

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This geodatabase contains water density raster images for the Gulf of Maine that were interpolated from water density (sigma t or kilograms/ meters cubed) point data...

A Review of the Factors Associated with the Adoption of Accounting Information Systems in Gulf Countries.

Science.gov (United States)

Hammour, Hadal; Househ, Mowafa; Razzak, Hira Abdul

2017-01-01

This review attempts to elucidate the significance of accounting information systems within healthcare settings in the Gulf regions. Information and communication technologies (ICT) has provided accounting system the ability to help an organization use and develop computerized systems to record and track financial transactions. Accounting information systems, if well implemented, can permit healthcare sectors in the Gulf regions to produce reports that can support the decision making process. Additional abilities of an accounting information systems include faster processing, enriched accuracy, amplified functionality, and improved external reporting. Training of hospital staff can help in enhancing the use of accounting information systems in gulf hospitals.

Space View of the 1991 Gulf War Kuwaiti Oil Fires

Science.gov (United States)

Torres, O.; Bhartia, P. K.; Larko, D.

2014-12-01

During the 1991 Persian Gulf War, over 700 oil wells in Kuwait were set ablaze by the withdrawing Iraqi army with the apparent intent of hindering satellite reconnaissance and intelligence gathering activities by the coalition of forces repelling Iraq from occupied Kuwait. The oil fires that burned for an estimated 10 months, created a huge smoke plume whose spatial extent went at times beyond the Persian Gulf region, mobilized across the Saharan Desert reaching as far west as the North Atlantic Ocean. The Nimbus-7 TOMS Total Ozone Mapping Spectrometer, in operation from October 1978 to May 1993, measured the near UV radiances that in the mid-1990's became the input in the calculation of the well know Absorbing Aerosol Index that represented a major breakthrough in satellite-based aerosol remote sensing. Thus, unknowingly to the world, the N7-TOMS sensor was collecting in 1991 an unprecedented daily record of what can be considered the worst environmental catastrophe affecting the atmosphere since the beginning of the era of space-based remote sensing in the 1970's. An overview of the temporal and spatial extent of the synoptic scale 1991 Gulf War smoke plume as seen by the Nimbus-7 TOMS Absorbing Aerosol Index will be presented.