WorldWideScience

Sample records for sequoia sempervirens coast

  1. Clonal Spread in Second Growth Stands of Coast Redwood, Sequoia sempervirens

    Science.gov (United States)

    Vladimir Douhovnikoff; Richard S. Dodd

    2007-01-01

    Coast redwood (Sequoia sempervirens) is one of the rare conifers to reproduce successfully through clonal spread. The importance of this mode of reproduction in stand development is largely unknown. Understanding the importance of clonal spread and the spatial structure of clones is crucial for stand management strategies that would aim to maximize...

  2. Proteomic profiling of proteins associated with the rejuvenation of Sequoia sempervirens (D. Don Endl

    Directory of Open Access Journals (Sweden)

    Chen Yu-Ting

    2010-12-01

    Full Text Available Abstract Background Restoration of rooting competence is important for rejuvenation in Sequoia sempervirens (D. Don Endl and is achieved by repeatedly grafting Sequoia shoots after 16 and 30 years of cultivation in vitro. Results Mass spectrometry-based proteomic analysis revealed three proteins that differentially accumulated in different rejuvenation stages, including oxygen-evolving enhancer protein 2 (OEE2, glycine-rich RNA-binding protein (RNP, and a thaumatin-like protein. OEE2 was found to be phosphorylated and a phosphopeptide (YEDNFDGNSNVSVMVpTPpTDK was identified. Specifically, the protein levels of OEE2 increased as a result of grafting and displayed a higher abundance in plants during the juvenile and rejuvenated stages. Additionally, SsOEE2 displayed the highest expression levels in Sequoia shoots during the juvenile stage and less expression during the adult stage. The expression levels also steadily increased during grafting. Conclusion Our results indicate a positive correlation between the gene and protein expression patterns of SsOEE2 and the rejuvenation process, suggesting that this gene is involved in the rejuvenation of Sequoia sempervirens.

  3. Produção de painéis compensados fenólicos com lâminas de madeira de Sequoia sempervirens

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    Setsuo Iwakiri

    Full Text Available Esta pesquisa teve como objetivo avaliar a qualidade dos painéis compensados multilaminados produzidos com lâminas de madeira de Sequoia sempervirens. Foram produzidos em laboratório compensados com cinco lâminas de 2,0 mm de espessura, coladas com resina fenol-formaldeído, com duas diferentes formulações: (A FF = 100; E = 5; CC = 5; A = 5, e (B FF = 100; E = 15; CC = 15; A = 15, e duas gramaturas: 280g/m² e 320 g/m². Os painéis foram prensados com pressão específica de 10 kgf/cm², temperatura de 130 ºC e tempo de prensagem de dez minutos. Foram avaliadas as propriedades de resistência da linha de cola aos esforços de cisalhamento e de flexão estática (módulo de elasticidade e módulo de ruptura, paralelo e perpendicular às fibras. De uma forma geral, as diferentes formulações de cola e gramaturas não afetaram significativamente as propriedades dos painéis, o que representa um aspecto importante sob o ponto de vista econômico. A resistência ao cisalhamento e a percentagem de falhas na madeira dos painéis produzidos com a formulação (B atenderam aos requisitos mínimos da norma EN 314-2 (1993 para painéis de uso externo. Os resultados indicam que as lâminas de Sequoia sempervirens podem ser utilizadas para compor o miolo de painéis compensados para uso externo.

  4. Coast redwood live crown and sapwood

    Science.gov (United States)

    John-Pascal Berrill; Jesse L. Deffress; Jessica M. Engle

    2012-01-01

    Understanding crown rise and sapwood taper will help meet management objectives such as producing long branch-free boles for clear wood and old-growth restoration, or producing sawlogs with a high proportion of heartwood. Coast redwood (Sequoia sempervirens) tree crown ratio data were collected 20 years after partial harvesting in a 65-year-old second growth stand....

  5. Post-fire response of coast redwood one year after the Mendocino lightning complex fires

    Science.gov (United States)

    Robert B. Douglas; Tom. Bendurel

    2012-01-01

    Coast redwood (Sequoia sempervirens) forests have undergone significant changes over the past century and are now in state more conducive for wildfires. Because fires have been uncommon in redwood forests over the past 80 years, managers have limited data to make decisions about the post-fire environment. In June 2008, a series of lightning storms...

  6. Management practices eelated to the Restoration of old dorest characteristics in coast redwood forests

    Science.gov (United States)

    Gregory A. Guisti

    2012-01-01

    A standardized, interactive, interview process was used with practicing Registered Professional Foresters asking a suite of questions to ascertain their management approaches to coast redwood (Sequoia sempervirens [D. Don] Endl.) stands that could best be transferred to other projects and lands interested in recruiting older forest...

  7. Rangewide Genetic Variation in Coast Redwood Populations at a Chloroplast Microsatellite Locus

    Science.gov (United States)

    Chris Brinegar

    2012-01-01

    Old growth and second growth populations of coast redwood (Sequoia sempervirens) were sampled at 10 locations throughout its range and analyzed at a highly variable chloroplast microsatellite locus. Very low FST values indicated that there was no significant genetic differentiation between adjacent old growth and second growth populations at each location. Genetic...

  8. Sapwood area - leaf area relationships for coast redwood

    OpenAIRE

    Stancioiu, P T; O'Hara, K L

    2005-01-01

    Coast redwood (Sequoia sempervirens (D. Don) Endl.) trees in different canopy strata and crown positions were sampled to develop relationships between sapwood cross-sectional area and projected leaf area. Sampling occurred during the summers of 2000 and 2001 and covered tree heights ranging from 7.7 to 45.2 m and diameters at breast height ranging from 9.4 to 92.7 cm. Foliage morphology varied greatly and was stratified into five types based on needle type (sun or shade) and twig color. A str...

  9. [Analysis of the effectiveness of the spa and health resort-based treatment of the patients presenting with broncho-pulmonary pathology at the southern coast of the Crimea depending on the period of flowering of Mediterranean Cypress (Cupressus sempervirens)].

    Science.gov (United States)

    Savchenko, V M; Belyaeva, S N; Govorun, M I; Pirogova, M E

    The objective of the present study was to evaluate the influence of pollen of Mediterranean Cypress (Cupressus sempervirens) on the effectiveness of the spa and health resort-based treatment (SHRT) of the patients with broncho-pulmonary pathology at the southern coast of the Crimea (SCC). This article presents the results of the analysis of the data on 122 patients presenting with broncho-pulmonary pathology who received SHRT under the conditions of the Southern Coast of the Crimea. Fifty one (41.8%) of these patients suffered from chronic obstructive pulmonary disease and 71 (58.2%) ones had bronchial asthma. The whole group was comprised of 44 men (36.1%) and 78 women (63.9%). The average (median) age of the patients was 55.8 years. All the participants of the study underwent the comprehensive examination including the general medical and physical examination, complete blood count, the study of sputum cytology and immunological properties of blood including the standard characteristics, IgE and lysozyme levels), evaluation of the respiratory and locomotor (physical) functions with the use of the 6-minute walking test. The aeropollenological study of the aerial environment of the southern coast of the Crimea in the region of Yalta showed that the «bloom» of the Mediterranean Cypress occurs during the period from February till April inclusive. The highest concentrations of cypress pollen are observed in March and early April. The overall effectiveness of SHRT for the patients with broncho-pulmonary pathology arriving for the treatment at the southern coast of the Crimea from other Crimean localities does not depend on the period of «flowering» (the presence of pollen in the air) of the Mediterranean Cypress. In these patients, the termination of the spa and health resort-based treatment during the «flowering» of the Mediterranean Cypress resulted in nothing more than a strained adaptive response manifested as the altered blood leukocyte count. Such reaction

  10. Plant Uptake of Atmospheric Carbonyl Sulfide in Coast Redwood Forests

    Science.gov (United States)

    Campbell, J. E.; Whelan, M. E.; Berry, J. A.; Hilton, T. W.; Zumkehr, A.; Stinecipher, J.; Lu, Y.; Kornfeld, A.; Seibt, U.; Dawson, T. E.; Montzka, S. A.; Baker, I. T.; Kulkarni, S.; Wang, Y.; Herndon, S. C.; Zahniser, M. S.; Commane, R.; Loik, M. E.

    2017-12-01

    The future resilience of coast redwoods (Sequoia sempervirens) is now of critical concern due to the detection of a 33% decline in California coastal fog over the 20th century. However, ecosystem-scale measurements of photosynthesis and stomatal conductance are challenging in coast redwood forests, making it difficult to anticipate the impacts of future changes in fog. To address this methodological problem, we explore coastal variations in atmospheric carbonyl sulfide (COS or OCS), which could potentially be used as a tracer of these ecosystem processes. We conducted atmospheric flask campaigns in coast redwood sites, sampling at surface heights and in the canopy ( 70 m), at the University of California Landels-Hill Big Creek Reserve and Big Basin State Park. We simulated COS atmosphere-biosphere exchange with a high-resolution 3-D model to interpret these data. Flask measurements indicated a persistent daytime drawdown between the coast and the downwind forest (45 ± 6 ppt COS) that is consistent with the expected relationship between COS plant uptake, stomatal conductance, and gross primary production. Other sources and sinks of COS that could introduce noise to the COS tracer technique (soils, anthropogenic activity, nocturnal plant uptake, and surface hydrolysis on leaves) are likely to be small relative to daytime COS plant uptake. These results suggest that COS measurements may be useful for making ecosystem-scale estimates of carbon, water, and energy exchange in coast redwood forests.

  11. Aspen Characteristics - Sequoia National Forest [ds377

    Data.gov (United States)

    California Natural Resource Agency — The database represents point locations and associated stand assessment data collected within aspen stands in the Cannell Meadows Ranger District, Sequoia National...

  12. Regeneration Dynamics of Coast Redwood, a Sprouting Conifer Species: A Review with Implications for Management and Restoration

    Directory of Open Access Journals (Sweden)

    Kevin L. O’Hara

    2017-04-01

    Full Text Available Coast redwood (Sequoia sempervirens (Lamb. ex. D. Don Endl. is unique among conifer species because of its longevity, the great sizes of individual trees, and its propensity to reproduce through sprouts. Timber harvesting in the native redwood range along the coast of the western United States has necessitated restoration aimed to promote old forest structures to increase the total amount of old forest, the connectivity between old forests, and to enhance the resiliency of these ecosystems. After disturbance or harvest, healthy redwood stumps sprout vigorously, often producing dozens of sprouts within two years of disturbance. These sprouts form highly aggregated spatial patterns because they are clustered around stumps that may number less than 50 ha−1. Thinning of sprouts can accelerate individual tree growth, providing an effective restoration strategy to accelerate formation of large trees and old forest structures or increase stand growth for timber production. However, management, including restoration activities, is a contentious issue throughout the native range of redwood because of the history of overexploitation of this resource and perceptions that overexploitation is continuing. This paper reviews the science of early stand dynamics in coast redwood and their implications for restoration and other silvicultural strategies.

  13. Aspen Delineation - Sequoia National Forest [ds378

    Data.gov (United States)

    California Natural Resource Agency — The database represents delineations of aspen stands associated with stand assessment data (SEQUOIA_NF_PTS) collected in aspen stands in the Cannell Meadows Ranger...

  14. Sudden Oak Death-Induced Tanoak Mortality in Coast Redwood Forests: Current and Predicted Impacts to Stand Structure

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    Kevin L. O’Hara

    2010-08-01

    Full Text Available Tanoak (Notholithocarpus densiflorus syn. Lithocarpus densiflorus is one of the most widespread and abundant associates of coast redwood (Sequoia sempervirens, but little is known about the structural relationships between these two species. Knowledge of such relationships is essential for a thorough understanding of the impacts of sudden oak death (caused by the exotic pathogen Phytophthora ramorum, which is currently decimating tanoak populations throughout the redwood range. In this study, we utilized a stratified plot design and a stand reconstruction technique to assess structural impacts, at present and in the future, of this emerging disease. We found that residual trees in diseased plots were more aggregated than trees in unaffected plots, and we predicted that the loss of tanoak will lead to the following short-term changes: greater average diameter, height, height-to-live-crown, and crown length, as well as an increase in average nearest neighbor differences for diameter, height, and crown length. In addition, plots lacking tanoak (living or dead—as compared to plots with tanoak—exhibited greater average diameter and increased nearest neighbor differences with regard to diameter, height, and crown length. We also conducted a preliminary exploration of how sudden oak death-induced structural changes compare with typical old-growth characteristics, and how this disease may affect the structure of old-growth forests.

  15. Decomposition and N cycling changes in redwood forests caused by sudden oak death

    Science.gov (United States)

    Richard C. Cobb; David M. Rizzo

    2012-01-01

    Phytophthora ramorum is an emergent pathogen in redwood forests which causes the disease sudden oak death. Although the disease does not kill coast redwood (Sequoia sempervirens), extensive and rapid mortality of tanoak (Notholithocarpus densiflorus) has removed this...

  16. Air pollution effects on giant sequoia ecosystems.

    Science.gov (United States)

    P.R. Miller; Nancy Grulke; K.W. Stolte

    1994-01-01

    Giant sequoia [Sequoiadendron giganteum (Lindl.) Buchholz] groves are found entirely within the Sierra Nevada mixed-conifer type. Several of its companion tree species, mainly ponderosa pine (Pinus ponderosa Dougl. ex Laws.) and Jeffrey pine (P. jeffreyi Grev. & Balf.), show foliar injury after...

  17. Homeopathic Doses of Gelsemium sempervirens Improve the Behavior of Mice in Response to Novel Environments

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    Paolo Bellavite

    2011-01-01

    Full Text Available Gelsemium sempervirens is used in homeopathy for treating patients with anxiety related symptoms, however there have been few experimental studies evaluating its pharmacological activity. We have investigated the effects of homeopathic doses of G. sempervirens on mice, using validated behavioral models. Centesimal (CH dilutions/dynamizations of G. sempervirens, the reference drug diazepam (1 mg/kg body weight or a placebo (solvent vehicle were intraperitoneally delivered to groups of mice of CD1 strain during 8 days, then the effects were assessed by the Light-Dark (LD choice test and by the Open-Field (OF exploration test, in a fully blind manner. In the LD test, the mean time spent in the illuminated area by control and placebo-treated animals was 15.98%, for mice treated with diazepam it increased to 19.91% (P = .047, while with G. sempervirens 5 CH it was 18.11% (P = .341, non-significant. The number of transitions between the two compartments increased with diazepam from 6.19 to 9.64 (P < .001 but not with G. Sempervirens. In the OF test, G. sempervirens 5 CH significantly increased the time spent and the distance traveled in the central zone (P = .009 and P = .003, resp., while diazepam had no effect on these OF test parameters. In a subsequent series of experiments, G. sempervirens 7 and 30 CH also significantly improved the behavioral responses of mice in the OF test (P < .01 for all tested variables. Neither dilutions of G. sempervirens affected the total distance traveled, indicating that the behavioral effect was not due to unspecific changes in locomotor activity. In conclusion, homeopathic doses of G. sempervirens influence the emotional responses of mice to novel environments, suggesting an improvement in exploratory behavior and a diminution of thigmotaxis or neophobia.

  18. A natural resource condition assessment for Sequoia and Kings Canyon National Parks: Appendix 11a: giant sequoias

    Science.gov (United States)

    York, Robert A.; Stephenson, Nathan L.; Meyer, Marc; Hanna, Steve; Tadashi, Moody; Caprio, Anthony C.; Battles, John J.

    2013-01-01

    For natural resource managers in the southern Sierra Nevada, giant sequoia requires very little introduction. It receives great attention as an icon of western forests and as a common namesake with the areas where it occurs. While it is a single component of a very complex system, its attention in this assessment and in general is well deserved. Giant sequoia is one of the few "destination species" that attracts a wide swath of the public by nature of it simply being present. It draws people, who otherwise may not travel, to a natural environment. The result is an expansion of the public’s sense of natural resource stewardship. Because park managers could not achieve their mission without public support, this fostering role of giant sequoia is critical for park natural resources and is important for natural resources in general. Despite its social relevance and physical size, we re-emphasize here that the giant sequoia resource is a relatively small component of the ecosystems of the southern Sierra Nevada. As is the case with all of the resources assessed in the NRCA, we focus on giant sequoia with the understanding that other resources will be considered simultaneously when evaluating management decisions that impact giant sequoia. While we attempt to explicitly address the interaction of giant sequoia with other resources and stressors, we also realize that ultimately managers will integrate much more information than is presented here when making decisions that influence giant sequoia. The autecology and management issues surrounding giant sequoia have been thoroughly reviewed elsewhere (Harvey et al. 1980, Aune 1994, Stephenson 1996). Stephenson (1996), in particular, should be reviewed when considering any management decisions that potentially impact giant sequoia. For those who may not be familiar with giant sequoia ecology, a summary of basic information is provided in a table below. In some parts of this assessment, we reproduce text from Stephenson

  19. Nectar and pollen production in Arabis procurrens Waldst. & Kit. and Iberis sempervirens L. (Brassicaceae

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    Monika Strzałkowska-Abramek

    2016-04-01

    Full Text Available Ecological environment in urban areas is specific in many aspects. There are evidences that ornamental plants cultivated in local urban gardens may help in conservation of pollinators. In this study, the flowering pattern, the abundance of flowering, nectar and pollen production as well as insect visitation in Arabis procurrens Waldst. & Kit. and Iberis sempervirens L. were investigated. The species were grown in the UMCS Botanical Garden in Lublin, southeastern Poland. Arabis procurrens bloomed from the middle of April until middle of May and I. sempervirens from the end of April until middle of June. In both species, most flowers opened in the morning hours (40–45% of total were opened by 8:00 h GMT + 2 h. The average sugar yield of A. procurrens was ca. 53% lower compared to I. sempervirens (mean = 1.08 g/m2 and 2.32 g/m2, respectively. In both species, considerable differences in the amount of produced sugars were noted between years. The mass of pollen produced in the flowers of A. procurrens was approx. 35% lower compared to that of I. sempervirens (mean = 0.06 mg and 0.09 mg per flower, respectively. Pollen produced per unit area was correlated with the number of flowers. On average, the species produced 1.46 g (A. procurrens and 2.54 g (I. sempervirens of pollen per 1 m2. The flowers of A. procurrens attracted mainly dipterans (56.3% of total visitors, while I. sempervirens lured chiefly solitary bees (47.4% of total visitors, however in both cases, honeybees, bumblebees and lepidopterans were also recorded. The A. procurrens and I. sempervirens due to flowering in early spring period may be promoted for use in small gardens (rock or pot gardens for both aesthetic value and as plants that support insect visitors in nectar and pollen rewards.

  20. Experimental neuropharmacology of Gelsemium sempervirens: Recent advances and debated issues.

    Science.gov (United States)

    Bellavite, Paolo; Bonafini, Clara; Marzotto, Marta

    Gelsemium sempervirens L. (Gelsemium) is traditionally used for its anxiolytic-like properties and its action mechanism in laboratory models are under scrutiny. Evidence from rodent models was reported suggesting the existence of a high sensitivity of central nervous system to anxiolytic power of Gelsemium extracts and Homeopathic dilutions. In vitro investigation of extremely low doses of this plant extract showed a modulation of gene expression of human neurocytes. These studies were criticized in a few commentaries, generated a debate in literature and were followed by further experimental studies from various laboratories. Toxic doses of Gelsemium cause neurological signs characterized by marked weakness and convulsions, while ultra-low doses or high Homeopathic dilutions counteract seizures induced by lithium and pilocarpine, decrease anxiety after stress and increases the anti-stress allopregnanolone hormone, through glycine receptors. Low (non-Homeopathic) doses of this plant or its alkaloids decrease neuropathic pain and c-Fos expression in mice brain and oxidative stress. Due to the complexity of the matter, several aspects deserve interpretation and the main controversial topics, with a focus on the issues of high dilution pharmacology, are discussed and clarified. Copyright © 2017 Transdisciplinary University, Bangalore and World Ayurveda Foundation. Published by Elsevier B.V. All rights reserved.

  1. 78 FR 66380 - Final Environmental Impact Statement for the Restoration of the Mariposa Grove of Giant Sequoias...

    Science.gov (United States)

    2013-11-05

    ... sequoia habitat, wetlands, and soundscapes within the Mariposa Grove, this alternative would relocate... for restoration of wetlands, soundscapes, and giant sequoia habitat within the Mariposa Grove by...

  2. Comparative Analysis of Gelsemine and Gelsemium sempervirens Activity on Neurosteroid Allopregnanolone Formation in the Spinal Cord and Limbic System

    Directory of Open Access Journals (Sweden)

    Christine Venard

    2011-01-01

    Full Text Available Centesimal dilutions (5, 9 and 15 cH of Gelsemium sempervirens are claimed to be capable of exerting anxiolytic and analgesic effects. However, basic results supporting this assertion are rare, and the mechanism of action of G. sempervirens is completely unknown. To clarify the point, we performed a comparative analysis of the effects of dilutions 5, 9 and 15 cH of G. sempervirens or gelsemine (the major active principle of G. sempervirens on allopregnanolone (3α,5α-THP production in the rat limbic system (hippocampus and amygdala or H-A and spinal cord (SC. Indeed, H-A and SC are two pivotal structures controlling, respectively, anxiety and pain that are also modulated by the neurosteroid 3α,5α-THP. At the dilution 5 cH, both G. sempervirens and gelsemine stimulated [3H]progesterone conversion into [3H]3α,5α-THP by H-A and SC slices, and the stimulatory effect was fully (100% reproducible in all assays. The dilution 9 cH of G. sempervirens or gelsemine also stimulated 3α,5α-THP formation in H-A and SC but the reproducibility rate decreased to 75%. At 15 cH of G. sempervirens or gelsemine, no effect was observed on 3α,5α-THP neosynthesis in H-A and SC slices. The stimulatory action of G. sempervirens and gelsemine (5 cH on 3α,5α-THP production was blocked by strychnine, the selective antagonist of glycine receptors. Altogether, these results, which constitute the first basic demonstration of cellular effects of G. sempervirens, also offer interesting possibilities for the improvement of G. sempervirens-based therapeutic strategies.

  3. Communicating the role of science in managing giant sequoia groves

    Science.gov (United States)

    Douglas D. Pilrto; Robert R. Rogers; Mary Chislock Bethke

    1997-01-01

    Management of giant sequoia groves has been and continues to be a hotly debated issue. The debate has reached Congress, with all parties seeking resolution as to what constitutes an ecologically and publicly acceptable management approach. Determining the correct management approach and communicating that approach to the general public is the crux of the problem....

  4. Management of Giant Sequoia on Mountain Home Demonstration State Forest

    Science.gov (United States)

    Norman J. Benson

    1986-01-01

    Established in 1946, the Mountain Home Demonstration State Forest, Tulare County, California, is managed by the California Department of Forestry. It is a multiple-use forest with recreation as its primary focus, although timber management has always played an important role. Giant sequoia (Sequoiadendron giganteum [Lindl. ] Buchholz) occurs in...

  5. Landscape-scale variation in canopy water content of giant sequoias during drought

    Science.gov (United States)

    Paz-Kagan, Tarin; Vaughn, Nicolas R.; Martin, Roberta E.; Brodrick, Philip G.; Stephenson, Nathan L.; Das, Adrian; Nydick, Koren R.; Asner, Gregory P.

    2018-01-01

    Recent drought (2012–2016) caused unprecedented foliage dieback in giant sequoias (Sequoiadendron giganteum), a species endemic to the western slope of the southern Sierra Nevada in central California. As part of an effort to understand and map sequoia response to droughts, we studied the patterns of remotely sensed canopy water content (CWC), both within and among sequoia groves in two successive years during the drought period (2015 and 2016). Our aims were: (1) to quantify giant sequoia responses to severe drought stress at a landscape scale using CWC as an indicator of crown foliage status, and (2) to estimate the effect of environmental correlates that mediate CWC change within and among giant sequoia groves. We utilized airborne high fidelity imaging spectroscopy (HiFIS) and light detection and ranging (LiDAR) data from the Carnegie Airborne Observatory to assess giant sequoia foliage status during 2015 and 2016 of the 2012–2016 droughts. A series of statistical models were generated to classify giant sequoias and to map their location in Sequoia and Kings Canyon National Parks (SEKI) and vicinity. We explored the environmental correlates and the spatial patterns of CWC change at the landscape scale. The mapped CWC was highly variable throughout the landscape during the two observation years, and proved to be most closely related to geological substrates, topography, and site-specific water balance. While there was an overall net gain in sequoia CWC between 2015 and 2016, certain locations (lower elevations, steeper slopes, areas more distant from surface water sources, and areas with greater climate water deficit) showed CWC losses. In addition, we found greater CWC loss in shorter sequoias and those growing in areas with lower sequoia stem densities. Our results suggest that CWC change indicates sequoia response to droughts across landscapes. Long-term monitoring of giant sequoia CWC will likely be useful for modeling and predicting their population

  6. Coping with gravity: the foliar water relations of giant sequoia.

    Science.gov (United States)

    Williams, Cameron B; Reese Næsborg, Rikke; Dawson, Todd E

    2017-10-01

    In tall trees, the mechanisms by which foliage maintains sufficient turgor pressure and water content against height-related constraints remain poorly understood. Pressure-volume curves generated from leafy shoots collected crown-wide from 12 large Sequoiadendron giganteum (Lindley) J. Buchholz (giant sequoia) trees provided mechanistic insights into how the components of water potential vary with height in tree and over time. The turgor loss point (TLP) decreased with height at a rate indistinguishable from the gravitational potential gradient and was controlled by changes in tissue osmotica. For all measured shoots, total relative water content at the TLP remained above 75%. This high value has been suggested to help leaves avoid precipitous declines in leaf-level physiological function, and in giant sequoia was controlled by both tissue elasticity and the balance of water between apoplasm and symplasm. Hydraulic capacitance decreased only slightly with height, but importantly this parameter was nearly double in value to that reported for other tree species. Total water storage capacity also decreased with height, but this trend essentially disappeared when considering only water available within the typical range of water potentials experienced by giant sequoia. From summer to fall measurement periods we did not observe osmotic adjustment that would depress the TLP. Instead we observed a proportional shift of water into less mobile apoplastic compartments leading to a reduction in hydraulic capacitance. This collection of foliar traits allows giant sequoia to routinely, but safely, operate close to its TLP, and suggests that gravity plays a major role in the water relations of Earth's largest tree species. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  7. Biological and Management Implications of Fire-Pathogen Interactions in the Giant Sequoia Ecosystem

    Science.gov (United States)

    Douglas D. Piirto; John R. Parmeter; Fields W. Cobb; Kevin L. Piper; Amy C. Workinger; William J. Otrosina

    1998-01-01

    An overriding management goal for national parks is the maintenance or, where necessary, the restoration of natural ecological processes. In Sequoia-Kings Canyon and Yosemite National Parks, there is concern about the effects of fire suppression on the giant sequoia-mixed conifer forest ecosystem. The National Park Service is currently using prescribed fire management...

  8. 78 FR 16294 - Draft Environmental Impact Statement for Restoration of the Mariposa Grove of Giant Sequoias...

    Science.gov (United States)

    2013-03-14

    ... Environmental Impact Statement for Restoration of the Mariposa Grove of Giant Sequoias, Yosemite National Park, Madera, and Mariposa Counties, CA AGENCY: National Park Service, Interior. ACTION: Notice of availability... the Mariposa Grove of giant sequoias in Yosemite National Park. This Draft EIS presents three...

  9. Visual Impacts of Prescribed Burning on Mixed Conifer and Giant Sequoia Forests

    Science.gov (United States)

    Lin Cotton; Joe R. McBride

    1987-01-01

    Prescribed burning programs have evolved with little concern for the visual impact of burning and the potential prescribed burning can have in managing the forest scene. Recent criticisms by the public of the prescribed burning program at Sequoia National Park resulted in an outside review of the National Park fire management programs in Sequoia, Kings Canyon, and...

  10. Forest Resources of the Caucasian Black Sea Coast: Problems and Prospects of Rational Use

    Directory of Open Access Journals (Sweden)

    S. M. Bebia

    2015-02-01

    Full Text Available More than 70 % of the Caucasian Black Sea Coast (CBSC forests grow in mountainous conditions of the Colchis phytogeographical province and perform primary environmental functions. In these forests for a long period of time excessively intense logging has been in practice, which caused serious damage to their health. The main issues of forestry here are the introduction of effective methods of harvesting, using rational technology in logging operations, restoring native forest types at past logging sites, increasing the productivity and sustainability of forests on the bioecological biogeocenotical level, and preserving the riparian-protective role of forests. In the article, the author analyzes the results of many years of research in forests of the CBSC, that consider the question of condition of forests, peculiarity the multifunctional values and priority direction forestry in them. The author also considers the basic conformity of structure and com-position of forest stands, and presents evidence about the natural renewal of logging sites in fir and beech forests. It has been established that high intensity selective logging more than 50 % canopy cover and bringing the stand after logging 0.5 and below leads to degradation of forests, except for the possibility of natural regeneration felling areas for over 70 years. The study substantiates the effectiveness of selective forms of forest management in the uneven-aged stands and the importance of a multi-purpose and sustainable use of forest resources. The study emphasizes the need for a rational technology of logging operations and silvicultural demands strict compliance with the development of cutting areas and suggests ways to improve the productivity of forests, using introduced valuable tree species. For example, Sequoia sempervirens Endl. in the plantings of forest monocultures on the Abkhazian Research Forest Experimental Station (Ochamchira at age of 50 years forms a valuable timber of

  11. Biodegrading effects of some rot fungi on Pinus caribaea wood

    African Journals Online (AJOL)

    STORAGESEVER

    2008-05-16

    May 16, 2008 ... species of white-rot fungi; Corioliopsis polyzona and Pleurotus squarrosulus, and two species of brown- rot fungi; Lentinus ... The results indicated that biodegradation by rot fungi differs in intensity according to the fungus ..... wood of coast red wood Sequoia Sempervirens (D. Don). For. Prod. J. 33(5): 15-20 ...

  12. Physiology and growth of redwood and Douglas-fir planted after variable density retention outside redwood’s range

    Science.gov (United States)

    Lucy Kerhoulas; Nicholas Kerhoulas; Wade Polda; John-Pascal Berrill

    2017-01-01

    Reforestation following timber harvests is an important topic throughout the coast redwood (Sequoia sempervirens (D. Don) Endl.) range. Furthermore, as drought-induced mortality spreads across many of California’s forests, it is important to understand how physiology and stand structure influence reforestation success. Finally, as climate...

  13. Predicting redwood productivity using biophysical data, spatial statistics and site quality indices

    Science.gov (United States)

    John-Pascal Berrill; Kevin L. O’Hara; Shawn Headley

    2017-01-01

    Coast redwood (Sequoia sempervirens (D. Don) Endl.) height growth and basal area growth are sensitive to variations in site quality. Site factors known to be correlated with redwood stand growth and yield include topographic variables such as position on slope, exposure, and the composite variable: topographic relative moisture index. Species...

  14. Remote measurement of canopy water content in giant sequoias (Sequoiadendron giganteum) during drought

    Science.gov (United States)

    Martin, Roberta E.; Asner, Gregory P.; Francis, Emily; Ambrose, Anthony; Baxter, Wendy; Das, Adrian J.; Vaughn, Nicolas R.; Paz-Kagan, Tarin; Dawson, Todd E.; Nydick, Koren R.; Stephenson, Nathan L.

    2018-01-01

    California experienced severe drought from 2012 to 2016, and there were visible changes in the forest canopy throughout the State. In 2014, unprecedented foliage dieback was recorded in giant sequoia (Sequoiadendron giganteum) trees in Sequoia National Park, in the southern California Sierra Nevada mountains. Although visible changes in sequoia canopies can be recorded, biochemical and physiological responses to drought stress in giant sequoia canopies are not well understood. Ground-based measurements provide insight into the mechanisms of drought responses in trees, but are often limited to few individuals, especially in trees of tall stature such as giant sequoia. Recent studies demonstrate that remotely measured forest canopy water content (CWC) is a general indicator of canopy response to drought, but the underpinning leaf- to canopy-level causes of observed variation in CWC remain poorly understood. We combined field and airborne remote sensing measurements taken in 2015 and 2016 to assess the biophysical responses of giant sequoias to drought. In 49 study trees, CWC was related to leaf water potential, but not to the other foliar traits, suggesting that changes in CWC were made at whole-canopy rather than leaf scales. We found a non-random, spatially varying pattern in mapped CWC, with lower CWC values at lower elevation and along the outer edges of the groves. This pattern was also observed in empirical measurements of foliage dieback from the ground, and in mapped CWC across multiple sequoia groves in this region, supporting the hypothesis that drought stress is expressed in canopy-level changes in giant sequoias. The fact that we can clearly detect a relationship between CWC and foliage dieback, even without taking into account prior variability or new leaf growth, strongly suggests that remotely sensed CWC, and changes in CWC, are a useful measure of water stress in giant sequoia, and valuable for assessing and managing these iconic forests in drought.

  15. Multiyear impacts of partial throughfall exclusion on Buxus sempervirens in a Mediterranean forest

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez-Calcerrada, J.; Letts, M. G.; Rolo, V.; Roset, S.; Rambal, S.

    2013-09-01

    Aim of study:We examined the impact of sustained partial throughfall exclusion on the functional performance of Buxus sempervirens L. in the understory of a Mediterranean evergreen forest. We further considered whether any impacts of throughfall exclusion were affected by light availability. Area of study: The study was conducted in the south of France. Material and methods: Several leaf physiological and branch structural traits were measured along a light gradient after seven years from the onset of a throughfall exclusion experiment (TEE). The results were analysed along with annual growth and survival data. Main results: Plant mortality was nil in both the throughfall exclusion and control treatments. Stem diameter growth was reduced by 39% in plants subjected to throughfall exclusion, but this difference was only significant at the p = 0.10 significance level. Leaf physiology remained unaffected by the TEE, but small changes were evident in branch structural traits in high light microsites following throughfall exclusion; branches had lower wood density in the TEE plot, and more biomass was partitioned to leaves relative to stems. Research highlights: These changes do not seem to reflect an acclimatory response that would enhance drought tolerance. Instead, we suggest that these drought effects might exacerbate vulnerability to xylem cavitation in the more open microsites. Reduced growth and increased vulnerability to drought may indicate an incipient decline in plant vitality following TEE. The extension of observations to the whole-plant level and longer periods will elucidate the consequences of these observations for plant fitness, and permit verification of the positive effect of shade on Buxus sempervirens under increased drought. (Author)

  16. Modeling mountain pine beetle habitat suitability within Sequoia National Park

    Science.gov (United States)

    Nguyen, Andrew

    Understanding significant changes in climate and their effects on timber resources can help forest managers make better decisions regarding the preservation of natural resources and land management. These changes may to alter natural ecosystems dependent on historical and current climate conditions. Increasing mountain pine beetle (MBP) outbreaks within the southern Sierra Nevada are the result of these alterations. This study better understands MPB behavior within Sequoia National Park (SNP) and model its current and future habitat distribution. Variables contributing to MPB spread are vegetation stress, soil moisture, temperature, precipitation, disturbance, and presence of Ponderosa (Pinus ponderosa) and Lodgepole (Pinus contorta) pine trees. These variables were obtained using various modeled, insitu, and remotely sensed sources. The generalized additive model (GAM) was used to calculate the statistical significance of each variable contributing to MPB spread and also created maps identifying habitat suitability. Results indicate vegetation stress and forest disturbance to be variables most indicative of MPB spread. Additionally, the model was able to detect habitat suitability of MPB with a 45% accuracy concluding that a geospatial driven modeling approach can be used to delineate potential MPB spread within SNP.

  17. 76 FR 75558 - Environmental Impact Statement for Restoration of the Mariposa Grove of Giant Sequoias, Yosemite...

    Science.gov (United States)

    2011-12-02

    ... tree. Fire plays an important role in giant sequoia ecology, creating canopy openings and releasing soil nutrients needed for seedling establishment. Fire scars on the trees indicate that fires occurred... and sites within the Grove include the parking areas, gift shop, ticket booth, tram staging area...

  18. The spectral response of Buxus sempervirens to different types of environmental stress - A laboratory experiment

    Science.gov (United States)

    de Jong, Steven M.; Addink, Elisabeth A.; Hoogenboom, Priscilla; Nijland, Wiebe

    2012-11-01

    The European Mediterranean regions are expected to encounter drier summer conditions and warmer temperatures for the winter of +2 °C and of +5 °C for the summer in the next six decennia. As a result the natural vegetation will face harsher conditions due to lower water availability, longer summer droughts and higher temperatures resulting in plant stress conditions. To monitor vegetation conditions like stress and leaf area index dynamics in our study area in Mediterranean France we use earth observation techniques like imaging spectroscopy. To assist image analysis interpretation we carried out a laboratory experiment to investigate the spectral and visible response of Buxus sempervirens, a common Mediterranean species, to five different types of stress: drought, drought-and-heat, light deprivation, total saturation and chlorine poisoning. For 52 days plants were subjected to stress. We collected data on the visible and spectral signs, and calculated thirteen vegetation indices. The plant's response time to different stress types varied from 10 to 32 days. Spectroscopic techniques revealed plant stress up to 15 days earlier than visual inspection. Visible signs of stress of the plants included curling and shrinking of the leaves, de-colouring of the leaves, leaves becoming breakable, opening up of the plant's canopy and sagging of the branches. Spectral signs of stress occurred first in the water absorption bands at 1450 and 1940 nm, followed by reduced absorption in the visible wavelengths, and next by reduced reflectance in near infrared. Light deprivation did not result in any stress signs, while drought, drought and heat and chlorine poisoning resulted in significant stress. The spectral response did not show differences for different stress types. Analysis of the vegetation indices identified the Carter-2 (R695/R760), the Red-Green Index (R690/R550) and the Vogelman-2 (R734 - R747)/(R715 + R726) as the best performing ones to identify stress. The lab

  19. Estimating Leaf Water Potential of Giant Sequoia Trees from Airborne Hyperspectral Imagery

    Science.gov (United States)

    Francis, E. J.; Asner, G. P.

    2015-12-01

    Recent drought-induced forest dieback events have motivated research on the mechanisms of tree survival and mortality during drought. Leaf water potential, a measure of the force exerted by the evaporation of water from the leaf surface, is an indicator of plant water stress and can help predict tree mortality in response to drought. Scientists have traditionally measured water potentials on a tree-by-tree basis, but have not been able to produce maps of tree water potential at the scale of a whole forest, leaving forest managers unaware of forest drought stress patterns and their ecosystem-level consequences. Imaging spectroscopy, a technique for remote measurement of chemical properties, has been used to successfully estimate leaf water potentials in wheat and maize crops and pinyon-pine and juniper trees, but these estimates have never been scaled to the canopy level. We used hyperspectral reflectance data collected by the Carnegie Airborne Observatory (CAO) to map leaf water potentials of giant sequoia trees (Sequoiadendron giganteum) in an 800-hectare grove in Sequoia National Park. During the current severe drought in California, we measured predawn and midday leaf water potentials of 48 giant sequoia trees, using the pressure bomb method on treetop foliage samples collected with tree-climbing techniques. The CAO collected hyperspectral reflectance data at 1-meter resolution from the same grove within 1-2 weeks of the tree-level measurements. A partial least squares regression was used to correlate reflectance data extracted from the 48 focal trees with their water potentials, producing a model that predicts water potential of giant sequoia trees. Results show that giant sequoia trees can be mapped in the imagery with a classification accuracy of 0.94, and we predicted the water potential of the mapped trees to assess 1) similarities and differences between a leaf water potential map and a canopy water content map produced from airborne hyperspectral data, 2

  20. Fungistatic Activity Of Essential Oils Extracted from Peumus boldus Mol., Laureliopsis philippiana (Looser Schodde and Laurelia sempervirens (Ruiz & Pav. Tul. (Chilean Monimiaceae Actividad Fungistática de Extractos de Aceites Asenciales de Peumus boldus Mol., Laureliopsis philippiana (Looser Schodde y Laurelia sempervirens (Ruiz & Pav. Tul. (Monimiaceae chilenas

    Directory of Open Access Journals (Sweden)

    Magalis Bittner

    2009-03-01

    Full Text Available Components of essential oils from the Chilean Monimiaceae, boldo (Peumus boldus Mol., tepa (Laureliopsis philippiana (Looser Schodde, and laurel (Laurelia sempervirens (Ruiz & Pav. Tul. were determined using Gas Chromatography- Mass Spectrometry (GCMS and fungistatic activity of the essential oils was tested against Rhizoctonia solani Kühn (Donk, Pythium irregulare Buisman, Ceratocystis pilifera (Fr. C. Moreau, Phragmidium violaceum (Schultz G. Winter, and Fusarium oxysporum Schltdl. The essential oils of the Monimiaceae species shared some common components; all three had the 3-carene, α-phellandrene, and α-pinene terpenes. L. philippiana and L. sempervirens also had safrole.The main components were ascaridol in P. boldus oil, 3-carene in L. philippiana, and safrole in L. sempervirens. The essential oil from L. sempervirens showed the highest fungistatic activity with significant differences in dose as well as exposure. P. violaceum was the most sensitive strain and P. irregulare the most resistant of all the essential oils (P. boldus extract affected growth by only 19%. Therefore, essential oils from these three plants could be used to control the fungal strains studied.Se determinaron los compuestos de aceites esenciales de Monimiaceae chilenas, boldo (Peumus boldus Mol., tepa (Laureliopsis philippiana (Looser Schodde, y laurel (Laurelia sempervirens (Ruiz & Pav. Tul. a través de cromatografía de gas con espectrometría de masas (CG-EM y se midió la actividad fungistática de los aceites sobre los hongos Rhizoctonia solani Kühn (Donk, Pythium irregulare Buisman, Ceratocystis pilifera (Fr. C. Moreau, Phragmidium violaceum (Schultz Winter y Fusarium oxysporum Schltdl. Los aceites esenciales de las especies de Monimiaceae tienen algunos compuestos en común; en las especies estudiadas se encontró que todos tenían los terpenos 3-careno, α-felandreno, y α-pineno. L. philippiana y L. sempervirens además tienen safrol. En cambio

  1. High-resolution 3D simulations of NIF ignition targets performed on Sequoia with HYDRA

    Science.gov (United States)

    Marinak, M. M.; Clark, D. S.; Jones, O. S.; Kerbel, G. D.; Sepke, S.; Patel, M. V.; Koning, J. M.; Schroeder, C. R.

    2015-11-01

    Developments in the multiphysics ICF code HYDRA enable it to perform large-scale simulations on the Sequoia machine at LLNL. With an aggregate computing power of 20 Petaflops, Sequoia offers an unprecedented capability to resolve the physical processes in NIF ignition targets for a more complete, consistent treatment of the sources of asymmetry. We describe modifications to HYDRA that enable it to scale to over one million processes on Sequoia. These include new options for replicating parts of the mesh over a subset of the processes, to avoid strong scaling limits. We consider results from a 3D full ignition capsule-only simulation performed using over one billion zones run on 262,000 processors which resolves surface perturbations through modes l = 200. We also report progress towards a high-resolution 3D integrated hohlraum simulation performed using 262,000 processors which resolves surface perturbations on the ignition capsule through modes l = 70. These aim for the most complete calculations yet of the interactions and overall impact of the various sources of asymmetry for NIF ignition targets. This work was performed under the auspices of the Lawrence Livermore National Security, LLC, (LLNS) under Contract No. DE-AC52-07NA27344.

  2. Patterns and correlates of giant sequoia foliage dieback during California’s 2012–2016 hotter drought

    Science.gov (United States)

    Stephenson, Nathan L.; Das, Adrian J.; Ampersee, Nicholas J.; Cahill, Kathleen G.; Caprio, Anthony C.; Sanders, John E.; Williams, A. Park

    2018-01-01

    Hotter droughts – droughts in which unusually high temperatures exacerbate the effects of low precipitation – are expected to increase in frequency and severity in coming decades, challenging scientists and managers to identify which parts of forested landscapes may be most vulnerable. In 2014, in the middle of California’s historically unprecedented 2012–2016 hotter drought, we noticed apparently drought-induced foliage dieback in giant sequoias (Sequoiadendron giganteum Lindl. [Buchholz]) in Sequoia and Kings Canyon national parks, California. Characteristics of the dieback were consistent with a controlled process of drought-induced senescence: younger (distal) shoots remained green while older (proximal) shoots were preferentially shed. As part of an ongoing interdisciplinary effort to understand and map sequoia vulnerability to hotter droughts, we reviewed historical records for evidence of previous foliage dieback events, surveyed dieback along trail corridors in eight sequoia groves, and analyzed tree-ring data from a high- and a low-foliage-dieback area. In sharp contrast to the greatly elevated mortality of other coniferous species found at low and middle elevations, we estimate that <1% of sequoias died during the drought. Foliage dieback was notably elevated in 2014 – the most severe single drought year in our 122-year record – but much lower in subsequent years. We found no historical records of similar foliage dieback during previous droughts. Dieback in 2014 was highly variable both within and among groves, ranging from virtually no dieback in some areas to nearly 50% in others. Dieback was highest (1) at low elevations, probably due to higher temperatures, reduced snowpack, and earlier snowmelt; (2) in areas of low adult sequoia densities, which likely reflect intrinsically more stressful sites; and (3) on steep slopes, probably reflecting reduced water availability. Average sequoia ring widths were narrower at the high-dieback than the

  3. Leaf to landscape responses of giant sequoia to hotter drought: An introduction and synthesis for the special section

    Science.gov (United States)

    Nydick, Koren R.; Stephenson, Nathan L.; Ambrose, Anthony R.; Asner, Gregory P.; Baxter, Wendy L.; Das, Adrian J.; Dawson, Todd E.; Martin, Roberta E.; Paz-Kagan, Tarin

    2018-01-01

    Hotter droughts are becoming more common as climate change progresses, and they may already have caused instances of forest dieback on all forested continents. Learning from hotter droughts, including where on the landscape forests are more or less vulnerable to these events, is critical to help resource managers proactively prepare for the future. As part of our Leaf to Landscape Project, we measured the response of giant sequoia, the world’s largest tree species, to the extreme 2012–2016 hotter drought in California. The project integrated leaf-level physiology measurements, crown-level foliage dieback surveys, and remotely sensed canopy water content (CWC) to shed light on mechanisms and spatial patterns in drought response. Here we summarize initial findings, present a conceptual model of drought response, and discuss management implications; details are presented in the other four articles of the special section on Giant Sequoias and Drought. Giant sequoias exhibited both leaf- and canopy-level responses that were effective in protecting whole-tree hydraulic integrity for the vast majority of individual sequoias. Very few giant sequoias died during the drought compared to other mixed conifer tree species; however, the magnitude of sequoia drought response varied across the landscape. This variability was partially explained by local site characteristics, including variables related to site water balance. We found that low CWC is an indicator of recent foliage dieback, which occurs when stress levels are high enough that leaf-level adjustments alone are insufficient for giant sequoias to maintain hydraulic integrity. CWC or change in CWC may be useful indicators of drought stress that reveal patterns of vulnerability to future hotter droughts. Future work will measure recovery from the drought and strengthen our ability to interpret CWC maps. Our ultimate goal is to produce giant sequoia vulnerability maps to help target management actions, such as

  4. Comparative study of two coniferous species (Pinus pinaster Aiton and Cupressus sempervirens L. var. dupreziana [A. Camus] Silba) essential oils: chemical composition and biological activity

    OpenAIRE

    Amri, Ismail; Hanana, Mohsen; Gargouri, Samia; Jamoussi, Bassem; Hamrouni, Lamia

    2013-01-01

    Maritime pine (Pinus pinaster Aiton) and Saharan cypress (Cupressus sempervirens L. var. dupreziana [A. Camus] Silba) are two cone-bearing seed coniferous woody plants. The chemical composition of their essential oils, isolated from needles and leaves by hydrodistillation, was analyzed with gas chromatography (GC) and gas chromatography mass spectrometry (GC/MS). A total of 66 and 28 compounds were identified, which represented 99.5% and 98.9% of total pine and cypress oils, respectively. Pin...

  5. Coast Guard

    International Nuclear Information System (INIS)

    1991-09-01

    The 11-million gallon Exxon Valdez oil spill highlighted deficiencies in the nation's ability to contain and recover spilled oil. The Oil Pollution Act of 1990 represents a major effort by Congress to address these deficiencies and to clarify the roles and responsibilities of the private sector and the federal government in preventing, preparing for, and responding to oil spills. This report examines the Coast Guard's efforts to avoid unnecessary and wasteful duplication by coordinating with the private sector and others, including federal and state agencies, its plans to buy oil spill response equipment and the new responsibilities the act places on the private sector and the Coast Guard and if these responsibilities call for a shift in emphasis in Coast Guard oil spill response activities

  6. Monte Carlo simulation of the resolution volume for the SEQUOIA spectrometer

    Directory of Open Access Journals (Sweden)

    Granroth G.E.

    2015-01-01

    Full Text Available Monte Carlo ray tracing simulations, of direct geometry spectrometers, have been particularly useful in instrument design and characterization. However, these tools can also be useful for experiment planning and analysis. To this end, the McStas Monte Carlo ray tracing model of SEQUOIA, the fine resolution fermi chopper spectrometer at the Spallation Neutron Source (SNS of Oak Ridge National Laboratory (ORNL, has been modified to include the time of flight resolution sample and detector components. With these components, the resolution ellipsoid can be calculated for any detector pixel and energy bin of the instrument. The simulation is split in two pieces. First, the incident beamline up to the sample is simulated for 1 × 1011 neutron packets (4 days on 30 cores. This provides a virtual source for the backend that includes the resolution sample and monitor components. Next, a series of detector and energy pixels are computed in parallel. It takes on the order of 30 s to calculate a single resolution ellipsoid on a single core. Python scripts have been written to transform the ellipsoid into the space of an oriented single crystal, and to characterize the ellipsoid in various ways. Though this tool is under development as a planning tool, we have successfully used it to provide the resolution function for convolution with theoretical models. Specifically, theoretical calculations of the spin waves in YFeO3 were compared to measurements taken on SEQUOIA. Though the overall features of the spectra can be explained while neglecting resolution effects, the variation in intensity of the modes is well described once the resolution is included. As this was a single sharp mode, the simulated half intensity value of the resolution ellipsoid was used to provide the resolution width. A description of the simulation, its use, and paths forward for this technique will be discussed.

  7. Antiprotozoal Activity of Buxus sempervirens and Activity-Guided Isolation of O-tigloylcyclovirobuxeine-B as the Main Constituent Active against Plasmodium falciparum

    Directory of Open Access Journals (Sweden)

    Julia B. Althaus

    2014-05-01

    Full Text Available Buxus sempervirens L. (European Box, Buxaceae has been used in ethnomedicine to treat malaria. In the course of our screening of plant extracts for antiprotozoal activity, a CH2Cl2 extract from leaves of B. sempervirens showed selective in vitro activity against Plasmodium falciparum (IC50 = 2.79 vs. 20.2 µg/mL for cytotoxicity against L6 rat cells. Separation of the extract by acid/base extraction into a basic and a neutral non-polar fraction led to a much more active and even more selective fraction with alkaloids while the fraction of non-polar neutral constituents was markedly less active than the crude extract. Thus, the activity of the crude extract could clearly be attributed to alkaloid constituents. Identification of the main triterpene-alkaloids and characterization of the complex pattern of this alkaloid fraction was performed by UHPLC/+ESI-QTOF-MS analyses. ESI-MS/MS target-guided larger scale preparative separation of the alkaloid fraction was performed by ‘spiral coil-countercurrent chromatography’. From the most active subfraction, the cycloartane alkaloid O-tigloylcyclovirobuxeine-B was isolated and evaluated for antiplasmodial activity which yielded an IC50 of 0.455 µg/mL (cytotoxicity against L6 rat cells: IC50 = 9.38 µg/mL. O-tigloylcyclovirobuxeine-B is thus most significantly responsible for the high potency of the crude extract.

  8. Bioactivity of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav. Tul. and Laureliopsis philippiana (Looser Schodde (Monimiacea essential oils against Sitophilus zeamais Motschulsky

    Directory of Open Access Journals (Sweden)

    Carmen Herrera-Rodríguez

    2015-09-01

    Full Text Available The maize weevil (Sitophilus zeamais Motschulsky is one of most important pest of stored seeds worldwide, but its current control method is based on the use of synthetic insecticides, usually leading to undesirable problems such as insecticide residues on treated food, human intoxications, and insect resistance development. Therefore the search of friendly alternative methods is required. The aim of this study was to assess, under laboratory conditions, the insecticidal properties of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav. Tul., and Laureliopsis philippiana (Looser Schodde essential oils against S. zeamais. The phytochemical analysis of the three essential oils showed 1,8-cineole, safrole and methyleugenol as the common components; all of them documented with insecticidal activity from essential oils from other plant species. The highest toxicity (100% mortality of these three oils acting as a contact insecticide was observed at 24 h exposure at 4% concentration. The estimated LC50 values for P. boldus, L. sempervirens, and L. philippiana were 0.37, 1.02, and 0.28 μL g-1, respectively. Peumus boldus exhibited the highest fumigant activity with 100% adult mortality at 30 μL oil L-1 air. At ≥ 0.5% (v/w concentration, all essential oils showed repellent activity. These three essential oils showed a promissory insecticidal activity against the maize weevil.

  9. Wild food plants used on the Dubrovnik coast (south-eastern Croatia

    Directory of Open Access Journals (Sweden)

    Katija Dolina

    2014-09-01

    Full Text Available Croatia’s versatile plant use traditions are still not sufficiently documented. The aim of this study was to record local traditions of wild food plant use on the Dubrovnik coast. We interviewed 40 inhabitants of 23 villages, mainly knowledgeable informants. On average 19 species were listed, which in total produced an inventory of 95 food plant species (including species whose leaves or inflorescences are used as recreational teas. The most commonly collected are: Sonchus oleraceus and S. asper, Asparagus acutifolius, Dioscorea communis, Cichorium intybus, Crepis zacintha, Allium ampeloprasum, Picris echioides and Foeniculum vulgare (all of them used as vegetables, the fruits of Rubus ulmifolius (mainly eaten raw, the fruits of roses (Rosa sempervirens and R. canina and the leaves of Salvia officinalis (both roses and salvia are used for making recreational teas. A particular feature of the local gastronomy is the collection of young Ruscus aculeatus shoots.

  10. Demography of the California spotted owl in the Sierra National Forest and Sequoia/Kings Canyon National Parks

    Science.gov (United States)

    George N. Steger; Thomas E. Munton; Kenneth D. Johnson; Gary P. Eberlein

    2002-01-01

    Nine years (1990–1998) of demographic data on California spotted owls (Strix occidentalis occidentalis) in two study areas on the western slopes of the Sierra Nevada—one in the Sierra National Forest (SNF), the other in Sequoia/Kings Canyon National Parks (SNP)—are summarized. Numbers of territorial owls fluctuated from 85 to 50 in SNF and 80 to 58...

  11. Laboratory evaluation of the Sequoia Scientific LISST-ABS acoustic backscatter sediment sensor

    Science.gov (United States)

    Snazelle, Teri T.

    2017-12-18

    Sequoia Scientific’s LISST-ABS is an acoustic backscatter sensor designed to measure suspended-sediment concentration at a point source. Three LISST-ABS were evaluated at the U.S. Geological Survey (USGS) Hydrologic Instrumentation Facility (HIF). Serial numbers 6010, 6039, and 6058 were assessed for accuracy in solutions with varying particle-size distributions and for the effect of temperature on sensor accuracy. Certified sediment samples composed of different ranges of particle size were purchased from Powder Technology Inc. These sediment samples were 30–80-micron (µm) Arizona Test Dust; less than 22-µm ISO 12103-1, A1 Ultrafine Test Dust; and 149-µm MIL-STD 810E Silica Dust. The sensor was able to accurately measure suspended-sediment concentration when calibrated with sediment of the same particle-size distribution as the measured. Overall testing demonstrated that sensors calibrated with finer sized sediments overdetect sediment concentrations with coarser sized sediments, and sensors calibrated with coarser sized sediments do not detect increases in sediment concentrations from small and fine sediments. These test results are not unexpected for an acoustic-backscatter device and stress the need for using accurate site-specific particle-size distributions during sensor calibration. When calibrated for ultrafine dust with a less than 22-µm particle size (silt) and with the Arizona Test Dust with a 30–80-µm range, the data from sensor 6039 were biased high when fractions of the coarser (149-µm) Silica Dust were added. Data from sensor 6058 showed similar results with an elevated response to coarser material when calibrated with a finer particle-size distribution and a lack of detection when subjected to finer particle-size sediment. Sensor 6010 was also tested for the effect of dissimilar particle size during the calibration and showed little effect. Subsequent testing revealed problems with this sensor, including an inadequate temperature

  12. A lightning multiple casualty incident in Sequoia and Kings Canyon National Parks.

    Science.gov (United States)

    Spano, Susanne J; Campagne, Danielle; Stroh, Geoff; Shalit, Marc

    2015-03-01

    Multiple casualty incidents (MCIs) are uncommon in remote wilderness settings. This is a case report of a lightning strike on a Boy Scout troop hiking through Sequoia and Kings Canyon National Parks (SEKI), in which the lightning storm hindered rescue efforts. The purpose of this study was to review the response to a lightning-caused MCI in a wilderness setting, address lightning injury as it relates to field management, and discuss evacuation options in inclement weather incidents occurring in remote locations. An analysis of SEKI search and rescue data and a review of current literature were performed. A lightning strike at 10,600 feet elevation in the Sierra Nevada Mountains affected a party of 5 adults and 7 Boy Scouts (age range 12 to 17 years old). Resources mobilized for the rescue included 5 helicopters, 2 ambulances, 2 hospitals, and 15 field and 14 logistical support personnel. The incident was managed from strike to scene clearance in 4 hours and 20 minutes. There were 2 fatalities, 1 on scene and 1 in the hospital. Storm conditions complicated on-scene communication and evacuation efforts. Exposure to ongoing lightning and a remote wilderness location affected both victims and rescuers in a lightning MCI. Helicopters, the main vehicles of wilderness rescue in SEKI, can be limited by weather, daylight, and terrain. Redundancies in communication systems are vital for episodes of radio failure. Reverse triage should be implemented in lightning injury MCIs. Education of both wilderness travelers and rescuers regarding these issues should be pursued. Copyright © 2015 Wilderness Medical Society. Published by Elsevier Inc. All rights reserved.

  13. Estimating the spatial and temporal distribution of species richness within Sequoia and Kings Canyon National Parks.

    Directory of Open Access Journals (Sweden)

    Steve Wathen

    Full Text Available Evidence for significant losses of species richness or biodiversity, even within protected natural areas, is mounting. Managers are increasingly being asked to monitor biodiversity, yet estimating biodiversity is often prohibitively expensive. As a cost-effective option, we estimated the spatial and temporal distribution of species richness for four taxonomic groups (birds, mammals, herpetofauna (reptiles and amphibians, and plants within Sequoia and Kings Canyon National Parks using only existing biological studies undertaken within the Parks and the Parks' long-term wildlife observation database. We used a rarefaction approach to model species richness for the four taxonomic groups and analyzed those groups by habitat type, elevation zone, and time period. We then mapped the spatial distributions of species richness values for the four taxonomic groups, as well as total species richness, for the Parks. We also estimated changes in species richness for birds, mammals, and herpetofauna since 1980. The modeled patterns of species richness either peaked at mid elevations (mammals, plants, and total species richness or declined consistently with increasing elevation (herpetofauna and birds. Plants reached maximum species richness values at much higher elevations than did vertebrate taxa, and non-flying mammals reached maximum species richness values at higher elevations than did birds. Alpine plant communities, including sagebrush, had higher species richness values than did subalpine plant communities located below them in elevation. These results are supported by other papers published in the scientific literature. Perhaps reflecting climate change: birds and herpetofauna displayed declines in species richness since 1980 at low and middle elevations and mammals displayed declines in species richness since 1980 at all elevations.

  14. Changes in gas exchange characteristics during the life span of giant sequoia: Implications for response to current and future concentrations of atmospheric ozone

    Energy Technology Data Exchange (ETDEWEB)

    Grulke, N.E.; Miller, P.R. (USDA Forest Service, Riverside, CA (United States))

    Native stands of giant sequoia are being exposed to relatively high concentrations of atmospheric ozone produced in urban and agricultural areas upwind. The expected change in environmental conditions over the next 100 y is likely to be unprecendented in the life span (ca 2,500 y) of giant sequoia. Changes in the physiological responses of three age classes of giant sequoia (current year, 12 y and 25 y) to different concentrations of ozone were determined, and age-related differences in sensitivity to pollutants were assessed by examining physiological changes (gas exchange, water use efficiency) across the life span of giant sequoia. The CO[sub 2] exchange rate (CER) was greater in current year (12.1 [mu]mol CO[sub 2]/m[sup 2]s) and 2 year old seedlings (4.8 [mu]mol CO[sub 2]/m[sup 2]s) than in all older trees (average of 3.0 [mu]mol CO[sub 2]/m[sup 2]s). Dark respiration was highest for current year seedlings and was increased twofold in symptotic individuals exposed to elevated ozone concentrations. Stomatal conductance was greater in current-year and 2 year old seedlings (335 and 200 mmol H[sub 2]O/m[sup 2]s), respectively, than in all older trees (50 mmol H[sub 2]O/m[sup 2]s), indicating that the ozone concentration in substomatol cavities is higher in young seedlings than in older trees. Significant changes in water use efficiency occurred in trees between ages 5 and 20 years. It is concluded that giant sequoia seedlings are sensitive to atmospheric ozone until they are ca 5 y old. Low conductance, high water use efficiency, and compact mesophyll all contribute to a natural ozone tolerance, or defense, or both, in foliage of older trees. 11 refs., 1 fig., 1 tab.

  15. Mersin-Aydıncık İlçesi Anıt Dallı Servileri (Cupressus sempervirens L. var. horizontalis (Mill. Gord.

    Directory of Open Access Journals (Sweden)

    R. ÖZÇELİK

    2009-04-01

    Full Text Available Ülkemizde bugüne kadar bir çok anıt ağaç ve meşcerenin tespiti yapılmıştır. Bu çalışmada, Mersin ili Aydıncık İlçesindeki; çap, boy, yaş, tepe çapı (somut özellikler ve Mistik özellikleri (soyut özellikler nedeniyle anıt ağaç niteliği taşıyan iki adet Dallı Servi (Cupresus sempervirens L. var. horizontalis (Mill. Gord. tanıtılmıştır. Bu iki ağaç, şimdiye kadar anıt ağaç olarak tescili yapılmış en uzun boylu servi bireyleridir. Bu nedenle; doğal, kültürel ve estetik değere sahip bu doğal varlıkların korunması gerekmektedir.

  16. Determination of epigenetic inheritance, genetic inheritance, and estimation of genome DNA methylation in a full-sib family of Cupressus sempervirens L.

    Science.gov (United States)

    Avramidou, Evangelia V; Doulis, Andreas G; Aravanopoulos, Filippos A

    2015-05-15

    Genetic inheritance and epigenetic inheritance are significant determinants of plant evolution, adaptation and plasticity. We studied inheritance of restriction site polymorphisms by the f-AFLP method and epigenetic DNA cytosine methylation inheritance by the f-MSAP technique. The study involved parents and 190 progeny of a Cupressus sempervirens L. full-sib family. Results from AFLP genetic data revealed that 71.8% of the fragments studied are under Mendelian genetic control, whereas faithful Mendelian inheritance for the MSAP fragments was low (4.29%). Further, MSAP fragment analysis showed that total methylation presented a mean of 28.2%, which was higher than the midparent value, while maternal inheritance was higher (5.65%) than paternal (3.01%). Interestingly de novo methylation in the progeny was high (19.65%) compared to parental methylation. Genetic and epigenetic distances for parents and offspring were not correlated (R(2)=0.0005). Furthermore, we studied correlation of total relative methylation and CG methylation with growth (height, diameter). We found CG/CNG methylation (N: A, C, T) to be positively correlated with height and diameter, while total relative methylation and CG methylation were positively correlated with height. Results are discussed in light of further research needed and of their potential application in breeding. Copyright © 2015 Elsevier B.V. All rights reserved.

  17. The loss of essential oil components induced by the Purge Time in the Pressurized Liquid Extraction (PLE) procedure of Cupressus sempervirens.

    Science.gov (United States)

    Dawidowicz, Andrzej L; Czapczyńska, Natalia B; Wianowska, Dorota

    2012-05-30

    The influence of different Purge Times on the effectiveness of Pressurized Liquid Extraction (PLE) of volatile oil components from cypress plant matrix (Cupressus sempervirens) was investigated, applying solvents of diverse extraction efficiencies. The obtained results show the decrease of the mass yields of essential oil components as a result of increased Purge Time. The loss of extracted components depends on the extrahent type - the greatest mass yield loss occurred in the case of non-polar solvents, whereas the smallest was found in polar extracts. Comparisons of the PLE method with Sea Sand Disruption Method (SSDM), Matrix Solid-Phase Dispersion Method (MSPD) and Steam Distillation (SD) were performed to assess the method's accuracy. Independent of the solvent and Purge Time applied in the PLE process, the total mass yield was lower than the one obtained for simple, short and relatively cheap low-temperature matrix disruption procedures - MSPD and SSDM. Thus, in the case of volatile oils analysis, the application of these methods is advisable. Copyright © 2012 Elsevier B.V. All rights reserved.

  18. Attività sperimentale di agricoltura di precisione su vigneto Confronto tra i sensori Mapir Survey2 e Parrot Sequoia

    Directory of Open Access Journals (Sweden)

    Simone Kartsiotis

    2018-01-01

    Full Text Available This report presents a comparison via field-testing between Parrot Sequoia and Mapir Survey2 multispectral cameras. Both sensors are commonly used in precision farming activities conducted by micro-RPAS (drones, thanks to their small size and light weight. The experimental activity was performed in summer on the vineyards of the Savignola Paolina agricultural holding in Tuscany. The sensors were taken on board the EXOS drone, a hexacopter developed by Zephyr S.r.l. company and specifically designed for precision farming operations. Good and bad qualities for each cameras are examined by a comprehensive approach, starting from technical specifications and continuing with a comparison of the results obtained on field. All the activity was performed by a partnership between the companies DroneBee and Zephyr S.r.l. .

  19. Impacts of fire management on aboveground tree carbon stocks in Yosemite and Sequoia & Kings Canyon National Parks

    Science.gov (United States)

    Matchett, John R.; Lutz, James A.; Tarnay, Leland W.; Smith, Douglas G.; Becker, Kendall M.L.; Brooks, Matthew L.

    2015-01-01

    Forest biomass on Sierra Nevada landscapes constitutes one of the largest carbon stocks in California, and its stability is tightly linked to the factors driving fire regimes. Research suggests that fire suppression, logging, climate change, and present management practices in Sierra Nevada forests have altered historic patterns of landscape carbon storage, and over a century of fire suppression and the resulting accumulation in surface fuels have been implicated in contributing to recent increases in high severity, stand-replacing fires. For over 30 years, fire management at Yosemite (YOSE) and Sequoia & Kings Canyon (SEKI) national parks has led the nation in restoring fire to park landscapes; however, the impacts on the stability and magnitude of carbon stocks have not been thoroughly examined.

  20. A natural resource condition assessment for Sequoia and Kings Canyon National Parks: Appendix 22: climatic change

    Science.gov (United States)

    Das, Adrian J.; Stephenson, Nathan L.

    2013-01-01

    Climate is a master controller of the structure, composition, and function of biotic communities, affecting them both directly, through physiological effects, and indirectly, by mediating biotic interactions and by influencing disturbance regimes. Sequoia and Kings Canyon National Park’s (SEKI’s) dramatic elevational changes in biotic communities -- from warm mediterranean to cold alpine -- are but one manifestation of climate’s overarching importance in shaping SEKI’s landscape. Yet humans are now altering the global climate, with measurable effects on ecosystems (IPCC 2007). Over the last few decades across the western United States, human-induced climatic changes have likely contributed to observed declines in fraction of precipitation falling as snow and snowpack water content (Mote et al. 2005, Knowles et al. 2006), advance in spring snowmelt (Stewart et al. 2005, Barnett et al. 2008), and consequent increase in area burned in wildfires (Westerling et al. 2006). In the Sierra Nevada, warming temperatures have likely contributed to observed glacial recession (Basagic 2008), uphill migration of small mammals (Moritz et al. 2008), and increasing tree mortality rates (van Mantgem and Stephenson 2007, van Mantgem et al. 2009). More substantial changes can be expected for the future (e.g., IPCC 2007). Given the central importance of climate and climatic changes, we sought to describe long-term trends in temperature and precipitation at SEKI. Time and budget constraints limited us to analyses of mean annual temperature and mean annual precipitation, using readily-available data. If funds become available in the future, further analyses will be needed to analyze trends by season, trends in daily minimum and maximum temperatures, and so on. We chose to analyze data from individual weather stations rather than use interpolated climatic data from sources such as PRISM (http://www.prism.oregonstate.edu/). In topographically complex mountainous regions with few

  1. Coast Guard Compass

    Science.gov (United States)

    looks on as Adm. Charles Ray thanks Adm. Chuck Michel for his service as the 30th vice commandant of the commandant Adm. Charles W. Ray relieved Adm. Charles D. Michel as vice commandant of the U.S. Coast Guard by . Following graduation and commissioning as an officer in the Coast Guard, Wright will be heading to the

  2. Extreme sensitivity of gene expression in human SH-SY5Y neurocytes to ultra-low doses of Gelsemium sempervirens

    Science.gov (United States)

    2014-01-01

    Background Gelsemium sempervirens L. (Gelsemium s.) is a traditional medicinal plant, employed as an anxiolytic at ultra-low doses and animal models recently confirmed this activity. However the mechanisms by which it might operate on the nervous system are largely unknown. This work investigates the gene expression of a human neurocyte cell line treated with increasing dilutions of Gelsemium s. extract. Methods Starting from the crude extract, six 100 × (centesimal, c) dilutions of Gelsemium s. (2c, 3c, 4c, 5c, 9c and 30c) were prepared according to the French homeopathic pharmacopoeia. Human SH-SY5Y neuroblastoma cells were exposed for 24 h to test dilutions, and their transcriptome compared by microarray to that of cells treated with control vehicle solutions. Results Exposure to the Gelsemium s. 2c dilution (the highest dose employed, corresponding to a gelsemine concentration of 6.5 × 10-9 M) significantly changed the expression of 56 genes, of which 49 were down-regulated and 7 were overexpressed. Several of the down-regulated genes belonged to G-protein coupled receptor signaling pathways, calcium homeostasis, inflammatory response and neuropeptide receptors. Fisher exact test, applied to the group of 49 genes down-regulated by Gelsemium s. 2c, showed that the direction of effects was significantly maintained across the treatment with high homeopathic dilutions, even though the size of the differences was distributed in a small range. Conclusions The study shows that Gelsemium s., a medicinal plant used in traditional remedies and homeopathy, modulates a series of genes involved in neuronal function. A small, but statistically significant, response was detected even to very low doses/high dilutions (up to 30c), indicating that the human neurocyte genome is extremely sensitive to this regulation. PMID:24642002

  3. Oceans and Coasts

    Science.gov (United States)

    An overview of EPA’s oceans, coasts, estuaries and beaches programs and the regulatory (permits/rules) and non-regulatory approaches for managing their associated environmental issues, such as water pollution and climate change.

  4. US west coast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Aerial surveys are conducted along the US west coast to determine distribution and abundance of endangered leatherback turtles (Dermochelys coriacea), loggerhead...

  5. A natural resource condition assessment for Sequoia and Kings Canyon National Parks: Appendix 14: plants of conservation concern

    Science.gov (United States)

    Huber, Ann; Das, Adrian; Wenk, Rebecca; Haultain, Sylvia

    2013-01-01

    Sequoia and Kings Canyon National Parks are located in the California Floristic Province, which has been named one of world‘s hotspots of endemic biodiversity (Myers et al. 2000). The California Floristic Province is the largest and most important geographic floristic unit in California and extends from the Klamath Mountains of southwestern Oregon to the northwestern portion of Baja California (Hickman 1993). The Sierra Nevada, one of six regions that make up the California Floristic Province, covers nearly 20% of the land in California yet contains over 50% of its flora. Within the Sierra Nevada, the southern Sierra supports more Sierran endemic and rare plant taxa than the central and northern portions of the region (Shevock 1996). Sequoia and Kings Canyon National Parks (SEKI) encompass roughly 20% of the southern Sierra Nevada region. The parks overlap three floristic subregions (central Sierra Nevada High, southern Sierra Nevada High, and southern Sierra Nevada Foothills), and border the Great Basin Floristic Province. The parks support a rich and diverse vascular flora composed of over 1,560 taxa. Of these, 150 taxa are identified as having special status. The term special status is applied here to include taxa that are state or federally listed, rare in California, or at risk because they have a limited distribution. Only one species from these parks is listed under the state or federal Endangered Species Acts (Carex tompkinsii, Tompkins‘ sedge, is listed as a rare species under the California Endangered Species Act), and one species is under review for federal endangered listing (Pinus albicaulis, whitebark pine). However, an absence of threatened and endangered species recognized by Endangered Species Acts is not equivalent to an absence of species at risk. There are 83 plant taxa documented as occurring in SEKI that are considered imperiled or vulnerable in the state by the California Department of Fish and Game‘s California Natural Diversity

  6. Instituto SEQUOIA : Um serviço privado,  multidisciplinar e de cuidado aos idosos SEQUOIA Institute: A multidisciplinary private service for the care of senior citizens L’Institut SEQUOIA : Un service privé multidisciplinaire pour les soins des personnes du troisième âge Instituto SEQUOIA : Un servicio privado y multidisciplinario de atención a las personas de la tercera edad

    Directory of Open Access Journals (Sweden)

    Anelise Fonseca

    2011-10-01

    Full Text Available Population aging is a reality all over the world, requiring a change in the way care is perceived and resources are divided for different age groups. In Brazil, current indicators and projections place the country among those with the highest number of elderly people. By contrast, there is a shortage of action plans and inter- and multi-disciplinary teams, as well as public policies and professionals, focusing on the elderly, in part as a consequence of an accelerated aging process in developing countries. Within this context, the SEQUOIA Institute (IS was created to attend to this process by monitoring the overall health of patients. The institute's routine work includes clinical actions, team meetings, socialization projects and lectures. The IS features a 10% yearly growth in medical assistance, a 20% rise in psychological treatments, and a 50% increase in lecture attendance.Le vieillissement de la population est un phénomène mondial qui exige de revoir la façon dont sont perçus les soins et dont sont divisées les ressources en fonction des différentes tranches d’âge. Les indicateurs et les projections actuels montrent que le Brésil est le pays qui compte la plus grande proportion de personnes âgées. Et pourtant, les plans d’action, les équipes inter- et pluridisciplinaires, mais aussi les politiques publiques et les professionnels spécialistes des questions liées aux personnes âgées sont en nombre insuffisant, notamment en raison d’un processus de vieillissement accéléré dans les pays en développement. C’est dans ce contexte qu’a été créé l’Institut SEQUOIA (IS, dont la mission consiste à gérer ce processus en effectuant un suivi de la santé générale des patients. Les principales tâches de l’institut incluent études cliniques, réunions d’équipes, projets impliquant des débats et conférences. L’IS affiche une croissance annuelle de 10 % dans le secteur de l’assistance médicale, de 20

  7. Critical Loads of Atmospheric Nitrogen Deposition for Aquatic Ecosystems in Yosemite and Sequoia and Kings Canyon National Parks

    Science.gov (United States)

    Nanus, L.; Clow, D. W.; Sickman, J. O.

    2016-12-01

    High-elevation aquatic ecosystems in Yosemite (YOSE) and Sequoia and Kings Canyon (SEKI) National Parks are impacted by atmospheric nitrogen (N) deposition associated with local and regional air pollution. Documented effects include elevated surface water nitrate concentrations, increased algal productivity, and changes in diatom species assemblages. Annual wet inorganic N deposition maps, developed at 1-km resolution for YOSE and SEKI to quantify N deposition to sensitive high-elevation ecosystems, range from 1.0 to over 5.0 kg N ha-1 yr-1. Critical loads of N deposition for nutrient enrichment of aquatic ecosystems were quantified and mapped using a geostatistical approach, with N deposition, topography, vegetation, geology, and climate as potential explanatory variables. Multiple predictive models were created using various combinations of explanatory variables; this approach allowed us to better quantify uncertainty and more accurately identify the areas most sensitive to atmospherically deposited N. The lowest critical loads estimates and highest exceedances identified within YOSE and SEKI occurred in high-elevation basins with steep slopes, sparse vegetation, and areas of neoglacial till and talus. These results are consistent with previous analyses in the Rocky Mountains, and highlight the sensitivity of alpine ecosystems to atmospheric N deposition.

  8. South Oregon Coast Reinforcement.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration.

    1998-05-01

    The Bonneville Power Administration is proposing to build a transmission line to reinforce electrical service to the southern coast of Oregon. This FYI outlines the proposal, tells how one can learn more, and how one can share ideas and opinions. The project will reinforce Oregon`s south coast area and provide the necessary transmission for Nucor Corporation to build a new steel mill in the Coos Bay/North Bend area. The proposed plant, which would use mostly recycled scrap metal, would produce rolled steel products. The plant would require a large amount of electrical power to run the furnace used in its steel-making process. In addition to the potential steel mill, electrical loads in the south Oregon coast area are expected to continue to grow.

  9. SEQUOIA Institute: A multidisciplinary private service for the care of senior citizens L’Institut SEQUOIA : Un service privé multidisciplinaire pour les soins des personnes du troisième âge Instituto SEQUOIA : Un servicio privado y multidisciplinario de atención a las personas de la tercera edad

    Directory of Open Access Journals (Sweden)

    Anelise Fonseca

    2011-10-01

    Full Text Available Population aging is a reality all over the world, requiring a change in the way care is perceived and resources are divided for different age groups. In Brazil, current indicators and projections place the country among those with the highest number of elderly people. By contrast, there is a shortage of action plans and inter- and multi-disciplinary teams, as well as public policies and professionals, focusing on the elderly, in part as a consequence of an accelerated aging process in developing countries. Within this context, the SEQUOIA Institute (IS was created to attend to this process by monitoring the overall health of patients. The institute's routine work includes clinical actions, team meetings, socialization projects and lectures. The IS features a 10% yearly growth in medical assistance, a 20% rise in psychological treatments, and a 50% increase in lecture attendance.Le vieillissement de la population est un phénomène mondial qui exige de revoir la façon dont sont perçus les soins et dont sont divisées les ressources en fonction des différentes tranches d’âge. Les indicateurs et les projections actuels montrent que le Brésil est le pays qui compte la plus grande proportion de personnes âgées. Et pourtant, les plans d’action, les équipes inter- et pluridisciplinaires, mais aussi les politiques publiques et les professionnels spécialistes des questions liées aux personnes âgées sont en nombre insuffisant, notamment en raison d’un processus de vieillissement accéléré dans les pays en développement. C’est dans ce contexte qu’a été créé l’Institut SEQUOIA (IS, dont la mission consiste à gérer ce processus en effectuant un suivi de la santé générale des patients. Les principales tâches de l’institut incluent études cliniques, réunions d’équipes, projets impliquant des débats et conférences. L’IS affiche une croissance annuelle de 10 % dans le secteur de l’assistance médicale, de 20

  10. The effect of low- and high-power microwave irradiation on in vitro grown Sequoia plants and their recovery after cryostorage.

    Science.gov (United States)

    Halmagyi, A; Surducan, E; Surducan, V

    2017-09-01

    Two distinct microwave power levels and techniques have been studied in two cases: low-power microwave (LPM) irradiation on in vitro Sequoia plants and high-power microwave (HPM) exposure on recovery rates of cryostored (-196°C) Sequoia shoot apices. Experimental variants for LPM exposure included: (a) in vitro plants grown in regular conditions (at 24 ± 1°C during a 16-h light photoperiod with a light intensity of 39.06 μEm -2 s -1 photosynthetically active radiation), (b) in vitro plants grown in the anechoic chamber with controlled environment without microwave irradiation, and (c) in vitro plants grown in the anechoic chamber with LPM irradiation for various times (5, 15, 30, 40 days). In comparison to control plants, significant differences in shoot multiplication and growth parameters (length of shoots and roots) were observed after 40 days of LPM exposure. An opposite effect was achieved regarding the content of total soluble proteins, which decreased with increasing exposure time to LPM. HPM irradiation was tested as a novel rewarming method following storage in liquid nitrogen. To our knowledge, this is the first report using this type of rewarming method. Although, shoot tips subjected to HPM exposure showed 28% recovery following cryostorage compared to 44% for shoot tips rewarmed in liquid medium at 22 ± 1 °C, we consider that the method represent a basis and can be further improved. The results lead to the overall conclusion that LPM had a stimulating effect on growth and multiplication of in vitro Sequoia plants, while the HPM used for rewarming of cryopreserved apices was not effective to achieve high rates of regrowth after liquid nitrogen exposure.

  11. Effects of stock use and backpackers on water quality in wilderness in Sequoia and Kings Canyon National Parks, USA

    Science.gov (United States)

    Clow, David W.; Forrester, Harrison; Miller, Benjamin; Roop, Heidi; Sickman, James O.; Ryu, Hodon; Santo Domingo, Jorge

    2013-01-01

    During 2010-2011, a study was conducted in Sequoia and Kings Canyon National Parks (SEKI) to evaluate the influence of pack animals (stock) and backpackers on water quality in wilderness lakes and streams. The study had three main components: (1) a synoptic survey of water quality in wilderness areas of the parks, (2) paired water-quality sampling above and below several areas with differing types and amounts of visitor use, and (3) intensive monitoring at six sites to document temporal variations in water quality. Data from the synoptic water-quality survey indicated that wilderness lakes and streams are dilute and have low nutrient and Escherichia coli (E. coli) concentrations. The synoptic survey sites were categorized as minimal use, backpacker use, or mixed use (stock and backpackers), depending on the most prevalent type of use upstream from the sampling locations. Sites with mixed use tended to have higher concentrations of most constituents (including E.coli) than those categorized as minimal-use (p≤0.05); concentrations at backpacker-use sites were intermediate. Data from paired-site sampling indicated that E.coli, total coliform, and particulate phosphorus concentrations were greater in streams downstream from mixed-use areas than upstream from those areas (p≤0.05). Paired-site data also indicated few statistically significant differences in nutrient, E. coli, or total coliform concentrations in streams upstream and downstream from backpacker-use areas. The intensive-monitoring data indicated that nutrient and E. coli concentrations normally were low, except during storms, when notable increases in concentrations of E.coli, nutrients, dissolved organic carbon, and turbidity occurred. In summary, results from this study indicate that water quality in SEKI wilderness generally is good, except during storms; and visitor use appears to have a small, but statistically significant influence on stream water quality.

  12. A comparison of effects from prescribed fires and wildfires managed for resource objectives in Sequoia and Kings Canyon National Parks

    Science.gov (United States)

    Nesmith, C.B.; Caprio, Anthony C.; Pfaff, Anne H.; McGinnis, Thomas W.; Keeley, Jon E.

    2011-01-01

    Current goals for prescription burning are focused on measures of fuel consumption and changes in forest density. These benchmarks, however, do not address the extent to which prescription burning meets perceived ecosystem needs of heterogeneity in burning, both for overstory trees and understory herbs and shrubs. There are still questions about how closely prescribed fires mimic these patterns compared to natural wildfires. This study compared burn patterns of prescribed fires and managed unplanned wildfires to understand how the differing burning regimes affect ecosystem properties. Measures of forest structure and fire severity were sampled in three recent prescribed fires and three wildfires managed for resource objectives in Sequoia and Kings Canyon National Parks. Fine scale patterns of fire severity and heterogeneity were compared between fire types using ground-based measures of fire effects on fuels and overstory and understory vegetation. Prescribed fires and wildfires managed for resource objectives displayed similar patterns of overstory and understory fire severity, heterogeneity, and seedling and sapling survival. Variation among plots within the same fire was always greater than between fire types. Prescribed fires can provide burned landscapes that approximate natural fires in many ways. It is recognized that constraints placed on when wildfires managed for resource objectives are allowed to burn freely may bias the range of conditions that might have been experienced under more natural conditions. Therefore they may not exactly mimic natural wildfires. Overall, the similarity in fire effects that we observed between prescribed fires and managed wildfires indicate that despite the restrictions that are often placed on prescribed fires, they appear to be creating post-fire conditions that approximate natural fires when assessed on a fine spatial scale.

  13. Maine coast winds

    Energy Technology Data Exchange (ETDEWEB)

    Avery, Richard

    2000-01-28

    The Maine Coast Winds Project was proposed for four possible turbine locations. Significant progress has been made at the prime location, with a lease-power purchase contract for ten years for the installation of turbine equipment having been obtained. Most of the site planning and permitting have been completed. It is expect that the turbine will be installed in early May. The other three locations are less suitable for the project, and new locations are being considered.

  14. The effects of raking on sugar pine mortality following prescribed fire in Sequoia and Kings Canyon National Parks, California, USA

    Science.gov (United States)

    Nesmith, Jonathan C. B.; O'Hara, Kevin L.; van Mantgem, Phillip J.; de Valpine, Perry

    2010-01-01

    Prescribed fire is an important tool for fuel reduction, the control of competing vegetation, and forest restoration. The accumulated fuels associated with historical fire exclusion can cause undesirably high tree mortality rates following prescribed fires and wildfires. This is especially true for sugar pine (Pinus lambertiana Douglas), which is already negatively affected by the introduced pathogen white pine blister rust (Cronartium ribicola J.C. Fisch. ex Rabenh). We tested the efficacy of raking away fuels around the base of sugar pine to reduce mortality following prescribed fire in Sequoia and Kings Canyon national parks, California, USA. This study was conducted in three prescribed fires and included 457 trees, half of which had the fuels around their bases raked away to mineral soil to 0.5 m away from the stem. Fire effects were assessed and tree mortality was recorded for three years after prescribed fires. Overall, raking had no detectable effect on mortality: raked trees averaged 30% mortality compared to 36% for unraked trees. There was a significant effect, however, between the interaction of raking and average pre-treatment forest floor fuel depth: the predicted probability of survival of a 50 cm dbh tree was 0.94 vs. 0.96 when average pre-treatment fuel depth was 0 cm for a raked and unraked tree, respectively. When average pre-treatment forest floor fuel depth was 30 cm, the predicted probability of survival for a raked 50 cm dbh tree was 0.60 compared to only 0.07 for an unraked tree. Raking did not affect mortality when fire intensity, measured as percent crown volume scorched, was very low (0% scorch) or very high (>80% scorch), but the raking treatment significantly increased the proportion of trees that survived by 9.6% for trees that burned under moderate fire intensity (1% to 80% scorch). Raking significantly reduced the likelihood of bole charring and bark beetle activity three years post fire. Fuel depth and anticipated fire intensity need

  15. Longshore sediment transport along the Indian coast

    Digital Repository Service at National Institute of Oceanography (India)

    Chandramohan, P.; Nayak, B.U.

    Coast. Maharashtra Coast and the part between Pondicherry and Point Calimere in Tamilnadu, show negligible order of annual net transport. Annual net transport along the east coast is in north and along the west coast in south but for South Gujarat Coast....

  16. Indian Ocean coasts, coastal ecology

    Digital Repository Service at National Institute of Oceanography (India)

    Ingole, B.S.

    stream_size 9 stream_content_type text/plain stream_name Encycl_Coast_Sci_2005_546.pdf.txt stream_source_info Encycl_Coast_Sci_2005_546.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  17. Andrew spares Florida Coast

    Science.gov (United States)

    Bush, Susan

    When geologists heard of the intensity of Hurricane Andrew, which struck the Florida coast on August 25 and then moved on to southern Louisiana, they were expecting the same kinds of coastal damage that Hurricane Hugo brought to the Caribbean and Carolina shores in 1989. Both storms were category 4 hurricanes, having winds of 131-155 mph and surges of 13-18 feet. However, the coastal damage never materialized, leaving geologists to analyze the factors that lessened the impact of the storm. “For minimum coastal damage, you couldn't have designed a better storm,” said Orrin Pilkey, director of the Program for the Study of Developed Shorelines (PSDS) in Durham, N.C. This was due in part to the nature of the storm itself and where it hit land, and in part to the regional geology, said Rob Thieler of PSDS. Despite the huge amounts of damage to buildings, there was virtually no evidence of coastal process destruction, he said.

  18. Beach rock from Goa Coast

    Digital Repository Service at National Institute of Oceanography (India)

    Setty, M.G.A.P.; Wagle, B.G.

    constituents of beach rock found along Goa coast is dealt with in detail. While discussing the various views on its origin, it is emphasized that the process of cementation is chiefly controlled by ground water evaporation, inorganic precipitation and optimum...

  19. West Coast Regional Office Permits

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA Fisheries implemented a license limitation program for the trawl and fixed gear sectors of Pacific Coast commercial groundfish fishery on January 1, 1993. The...

  20. Geomorphology of the Goa Coast

    Digital Repository Service at National Institute of Oceanography (India)

    Wagle, B.G.

    This paper is based on the observations and interpretations of aerial photographs (1;25, 000 and 1:15, 000) of the Goa Coast. Aerial photocharacters like zonal differences, texture, shape, size, form, pattern, vegetation, soil characteristics...

  1. Honduras: Caribbean Coast

    Energy Technology Data Exchange (ETDEWEB)

    Harborne, Alastair R.; Afzal, Daniel C.; Andrews, Mark J. [Coral Cay Conservation, London (United Kingdom)

    2001-07-01

    The coast of Honduras, Central America, represents the southern end of the Mesoamerican Barrier Reef System, although its marine resources are less extensive and studied than nearby Belize and Mexico. However, the coastal zone contains mainland reef formations, mangroves, wetlands, seagrass beds and extensive fringing reefs around its offshore islands, and has a key role in the economy of the country. Like most tropical areas, this complex of benthic habitats experiences limited annual variation in climatic and oceanographic conditions but seasonal and occasional conditions, particularly coral bleaching and hurricanes, are important influences. The effects of stochastic factors on the country's coral reefs were clearly demonstrated during 1998 when Honduras experienced a major hurricane and bleaching event. Any natural or anthropogenic impacts on reef health will inevitably affect other countries in Latin America, and vice versa, since the marine resources are linked via currents and the functioning of the system transcends political boundaries. Much further work on, for example, movement of larvae and transfer of pollutants is required to delineate the full extent of these links. Anthropogenic impacts, largely driven by the increasing population and proportion of people living in coastal areas, are numerous and include key factors such as agricultural run-off, over-fishing, urban and industrial pollution (particularly sewage) and infrastructure development. Many of these threats act synergistically and, for example, poor watershed management via shifting cultivation, increases sedimentation and pesticide run-off onto coral reefs, which increases stress to corals already affected by decreasing water quality and coral bleaching. Threats from agriculture and fishing are particularly significant because of the size of both industries. The desire to generate urgently required revenue within Honduras has also led to increased tourism which provides an over

  2. Honduras: Caribbean Coast.

    Science.gov (United States)

    Harborne, A R; Afzal, D C; Andrews, M J

    2001-12-01

    The coast of Honduras, Central America, represents the southern end of the Mesoamerican Barrier Reef System, although its marine resources are less extensive and studied than nearby Belize and Mexico. However, the coastal zone contains mainland reef formations, mangroves, wetlands, seagrass beds and extensive fringing reefs around its offshore islands, and has a key role in the economy of the country. Like most tropical areas, this complex of benthic habitats experiences limited annual variation in climatic and oceanographic conditions but seasonal and occasional conditions, particularly coral bleaching and hurricanes, are important influences. The effects of stochastic factors on the country's coral reefs were clearly demonstrated during 1998 when Honduras experienced a major hurricane and bleaching event. Any natural or anthropogenic impacts on reef health will inevitably affect other countries in Latin America, and vice versa, since the marine resources are linked via currents and the functioning of the system transcends political boundaries. Much further work on, for example, movement of larvae and transfer of pollutants is required to delineate the full extent of these links. Anthropogenic impacts, largely driven by the increasing population and proportion of people living in coastal areas, are numerous and include key factors such as agricultural run-off, over-fishing, urban and industrial pollution (particularly sewage) and infrastructure development. Many of these threats act synergistically and, for example, poor watershed management via shifting cultivation, increases sedimentation and pesticide run-off onto coral reefs, which increases stress to corals already affected by decreasing water quality and coral bleaching. Threats from agriculture and fishing are particularly significant because of the size of both industries. The desire to generate urgently required revenue within Honduras has also led to increased tourism which provides an overarching stress

  3. Determination of total Betta-activity and heavy metals in biomonitor species (phytomonitors) from the area of ITR-Sofia

    International Nuclear Information System (INIS)

    Dimitrov, S.; Yovchev, M.; Geleva, E.

    2010-01-01

    For the purposes of environmental assessment of the area around the Research reactor in Sofia, species from monitored control points, selected in a certain way (habitat, population, air and hydrogeological parameters) are examined. Samples from following phytomonitored species: Betula pendula (silver birch) popullus canadensis (Canadian populus), Quercus sp. (Oak), Dactilus glomerata (Cock's-foot), Abies alba (Silver Fir) and Sequoia sempervirens (Coast Redwood) were analyzed. The total beta activity was determined by radiometric analysis and heavy metals content was measured using X-ray fluorescence analysis. The results are discussed in terms of radiation monitoring program of INRNE (gamma-background, aerosols, surface and groundwater, soil, plants) and obtained values are compared with reference points in the country

  4. Isozyme markers associated with O3 tolerance indicate shift in genetic structure of ponderosa and Jeffrey pine in Sequoia National Park, California

    International Nuclear Information System (INIS)

    Staszak, J.; Grulke, N.E.; Marrett, M.J.; Prus-Glowacki, W.

    2007-01-01

    Effects of canopy ozone (O 3 ) exposure and signatures of genetic structure using isozyme markers associated with O 3 tolerance were analyzed in ∼20-, ∼80-, and >200-yr-old ponderosa (Pinus ponderosa Dougl. ex Laws.) and Jeffrey pine (Pinus jeffreyi Grev. and Balf.) in Sequoia National Park, California. For both species, the number of alleles and genotypes per loci was higher in parental trees relative to saplings. In ponderosa pine, the heterozygosity value increased, and the fixation index indicated reduction of homozygosity with increasing tree age class. The opposite tendencies were observed for Jeffrey pine. Utilizing canopy attributes known to be responsive to O 3 exposure, ponderosa pine was more symptomatic than Jeffrey pine, and saplings were more symptomatic than old growth trees. We suggest that these trends are related to differing sensitivity of the two species to O 3 exposure, and to higher O 3 exposures and drought stress that younger trees may have experienced during germination and establishment. - Genetic variation in isozyme markers associated with ozone tolerance differed between parental trees and their progeny in two closely related species of yellow pine

  5. Isozyme markers associated with O{sub 3} tolerance indicate shift in genetic structure of ponderosa and Jeffrey pine in Sequoia National Park, California

    Energy Technology Data Exchange (ETDEWEB)

    Staszak, J. [A Mickiewicz University, Genetics Department, ul. Umultowska 89, 61-614 Poznan (Poland); Grulke, N.E. [USDA Forest Service, 4955 Canyon Crest Drive, Riverside, CA 92507 (United States)], E-mail: ngrulke@fs.fed.us; Marrett, M.J. [5184 Tower Road, Riverside, CA 92506 (United States); Prus-Glowacki, W. [A Mickiewicz University, Genetics Department, ul. Umultowska 89, 61-614 Poznan (Poland)

    2007-10-15

    Effects of canopy ozone (O{sub 3}) exposure and signatures of genetic structure using isozyme markers associated with O{sub 3} tolerance were analyzed in {approx}20-, {approx}80-, and >200-yr-old ponderosa (Pinus ponderosa Dougl. ex Laws.) and Jeffrey pine (Pinus jeffreyi Grev. and Balf.) in Sequoia National Park, California. For both species, the number of alleles and genotypes per loci was higher in parental trees relative to saplings. In ponderosa pine, the heterozygosity value increased, and the fixation index indicated reduction of homozygosity with increasing tree age class. The opposite tendencies were observed for Jeffrey pine. Utilizing canopy attributes known to be responsive to O{sub 3} exposure, ponderosa pine was more symptomatic than Jeffrey pine, and saplings were more symptomatic than old growth trees. We suggest that these trends are related to differing sensitivity of the two species to O{sub 3} exposure, and to higher O{sub 3} exposures and drought stress that younger trees may have experienced during germination and establishment. - Genetic variation in isozyme markers associated with ozone tolerance differed between parental trees and their progeny in two closely related species of yellow pine.

  6. Submarine canyons off Madras Coast

    Digital Repository Service at National Institute of Oceanography (India)

    Setty, M.G.A.P.

    Submarine canyons off the coast of Madras, Tamil Nadu, India were studied during cruise of @iINS Kistna@@ as part of the IIOE programme They consist of hill-like projections and V-shaped valleys Their other features are also reported...

  7. Upwelling along the east coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Murty, C.S.; Varadachari, V.V.R.

    the premonsoon and monsoon periods. Waters from deeper layers of the shelf appear to reach the surface causing considerable fall of surface temperature near the coast. The probable causes for these differences in upwelling along the coast are discussed...

  8. Zooplankton along the Tamil Nadu coast

    Digital Repository Service at National Institute of Oceanography (India)

    Santhakumari, V.; Saraswathy, M.

    Zooplankton abundance along two sectors at Cape Comorin and Tuticorin of Tamil Nadu Coast, southeast coast of India was studied. High biomass contributed by Ostracods, Salps, Chaetognaths etc., were observed along Tuticorin transect. In the Cape...

  9. Spatial Reconnaissance : Technical Report ComCoast

    NARCIS (Netherlands)

    Verhagen, H.J.; Ahlhorn, F.

    2005-01-01

    ComCoast (Combined Functions in Coastal Defence Zones) is an INTERREG IIIB project funded by the EU. ComCoast aims to develop and demonstrate innovative solutions for flood protection in coastal areas. In ComCoast, five countries from the North Sea Region are involved: Belgium, Denmark, The

  10. A longshore sediment transport estimation for the Indian coast

    Digital Repository Service at National Institute of Oceanography (India)

    Nayak, B.U.; Chandramohan, P.

    in Tamilnadu, and the Maharashtra Coast experience negligible annual net transport. The direction of annual net transport along the east coast is towards north and along the west coast towards south except at south Gujarat Coast...

  11. Assessing the response of Emerald Lake, an alpine watershed in Sequoia National Park, California, to acidification during snowmelt by using a simple hydrochemical model

    International Nuclear Information System (INIS)

    Hooper, R.P.; West, C.T.; Peters, N.E.

    1990-01-01

    A sparsely parameterized hydrochemical model has been developed by using data from Emerald Lake watershed, which is a 120-ha alpine catchment in Sequoia National Park, California. Greater than 90% of the precipitation to this watershed is snow; hence, snowmelt is the dominant hydrologic event. A model which uses a single alkalinity-generating mechanism, primary mineral weathering, was able to capture the pattern of solute concentrations in surface waters during snowmelt. An empirical representation of the weathering reaction, which is based on rock weathering stoichiometry and which uses discharge as a measure of residence time, was included in the model. Results of the model indicate that current deposition levels would have to be increased between three-fold and eight-fold to exhaust the alkalinity of the lake during snowmelt if their is a mild acidic pulse in the stream at the beginning of snowmelt as was observed during the study period. The acidic pulse in the inflow stream at the onset of snowmelt was less pronounced than acidic pulses observed in the meltwater draining the snowpack at a point using snow lysimeters or in the laboratory. Sulfate concentrations in the stream water were the most constant; chloride and nitrate concentrations increased slightly at the beginning of snowmelt. Additional field work is required to resolve whether an acidic meltwater pulse occurs over a large area as well as at a point or whether, due to physical and chemical processes within the snowpack, the acidic meltwater pulse is attenuated at the catchment scale. The modest data requirements of the model permit its applications to other alpine watersheds that are much less intensively studied than Emerald Lake watershed

  12. The influence of prefire tree growth and crown condition on postfire mortality of sugar pine following prescribed fire in Sequoia National Park

    Science.gov (United States)

    Nesmith, Jonathan C. B.; Das, Adrian J.; O'Hara, Kevin L.; van Mantgem, Phillip J.

    2015-01-01

    Tree mortality is a vital component of forest management in the context of prescribed fires; however, few studies have examined the effect of prefire tree health on postfire mortality. This is especially relevant for sugar pine (Pinus lambertiana Douglas), a species experiencing population declines due to a suite of anthropogenic factors. Using data from an old-growth mixed-conifer forest in Sequoia National Park, we evaluated the effects of fire, tree size, prefire radial growth, and crown condition on postfire mortality. Models based only on tree size and measures of fire damage were compared with models that included tree size, fire damage, and prefire tree health (e.g., measures of prefire tree radial growth or crown condition). Immediately following the fire, the inclusion of different metrics of prefire tree health produced variable improvements over the models that included only tree size and measures of fire damage, as models that included measures of crown condition performed better than fire-only models, but models that included measures of prefire radial growth did not perform better. However, 5 years following the fire, sugar pine mortality was best predicted by models that included measures of both fire damage and prefire tree health, specifically, diameter at breast height (DBH, 1.37 m), crown scorch, 30-year mean growth, and the number of sharp declines in growth over a 30-year period. This suggests that factors that influence prefire tree health (e.g., drought, competition, pathogens, etc.) may partially determine postfire mortality, especially when accounting for delayed mortality following fire.

  13. Utilizing Remote Sensing Information to Improve Post-fire Rainfall-runoff Predictions after the 2010 Bull Fire in the Sequoia National Forest, CA

    Science.gov (United States)

    Kinoshita, A. M.; Hale, B.; Hogue, T. S.

    2012-12-01

    Post-fire management decisions are guided by rainfall-runoff predictions, which ultimately influence downstream treatment and mitigation costs. The current study investigates evolving rainfall-runoff partitioning at the watershed scale over a two-year period after the 2010 Bull Fire which occurred in the southern Sequoia National Forest in California. Stage height was measured at five-minute intervals using pressure transducers, tipping buckets were installed for rainfall duration and intensity, and channel cross-sections were measured approximately every two months to detail sediment deposition or scour. We also utilize remotely sensed vegetation data to evaluate vegetation recovery in the studied watersheds and the corresponding relationship to storm runoff. Normalized Difference Vegetation Index (NDVI), a measure of vegetation greenness, is evaluated for its potential use as a key recovery indicator. Preliminary results focus on alterations in annual and seasonal precipitation and discharge relationships using in-situ data and Landsat NDVI values for the period of study. NDVI values are consistent with a comprehensive burn, with an acute decrease observed in the initial post-fire period. However, vegetation recovery is highly variable in the studied systems and influenced by shorter-term biomass pulses (grasses) while longer-term recovery of other species (chaparral and pine) is ongoing. Runoff ratios are elevated during early storms and show some recovery in the later part of the study period. The ability to accurately and confidently predict post-fire runoff and longer-term recovery is critical for monitoring values-at-risk, reducing mitigation costs, and improving warnings to downstream public communities.

  14. Evaluating potential overlap between pack stock and Sierra Nevada bighorn sheep (Ovis canadensis sierrae) in Sequoia and Kings Canyon National Parks, California

    Science.gov (United States)

    Klinger, Robert C.; Few, Alexandra P.; Knox, Kathleen A.; Hatfield, Brian E.; Clark, Jonathan; German, David W.; Stephenson, Thomas R.

    2015-01-01

    Pack stock (horses, mules, burros, llamas, and goats) are frequently assumed to have negative effects on public lands, but there is a general lack of data to be able to quantify the degree to which this is actually the case. Sequoia and Kings Canyon National Parks have received complaints that pack stock may affect Sierra Nevada bighorn sheep (Ovis canadensis sierrae; SNBS), a federally endangered subspecies that occurs in largely disjunct herds in the Sierra Nevada Range of California. The potential effects are thought to be displacement of SNBS from meadows on their summer range (altered habitat use) or, more indirectly, through changes in SNBS habitat or forage quality. Our goals were to conduct an association analysis to quantify the degree of potential spatial overlap in meadow use between SNBS and pack stock and to compare differences in vegetation community composition, structure, and diversity among meadows with different levels of use by bighorn sheep and pack stock. For the association analysis, we used two approaches: (1) we quantified the proportion of meadows that were within the herd home ranges of bighorn sheep and were potentially open to pack stock, and, (2) we used Monte Carlo simulations and use-availability analyses to compare the proportion of meadows used by bighorn sheep relative to the proportional occurrence or area of meadows available to bighorn sheep that were used by pack stock. To evaluate potential effects of pack stock on meadow plant communities and SNBS forage, we sampled vegetation in 2011 and 2012 at 100 plots to generate data that allowed us to compare:

  15. Executive summary - Assessing the response of Emerald Lake, an alpine watershed in Sequoia National Park, California, to acidification during snowmelt using a simple hydrochemical model

    International Nuclear Information System (INIS)

    Hooper, R.P.; West, C.T.; Peters, N.E.

    1990-01-01

    A simple process-oriented model, called the Alpine Lake Forecaster (ALF), was constructed using data collected from the Integrated Watershed Study of Emerald Lake, Sequoia National Park, California. ALF is able to capture the basic solute patterns during snowmelt in this alpine catchment where groundwater is a minor contributor to streamflow. It includes an empirical representation of primary mineral weathering as the only alkalinity generating mechanism. During a heavy snow year, such as the one used for calibrating the model, the model accurately simulated the surface water chemical change in response to the initial ionic pulse from the snowpack and to the dilution that occurs at peak snowmelt. Because the model does not consider cation exchange, it over-predicts the acidification during the initial period of snowmelt, and therefore is a conservative predictor. However, the minimum alkalinity observed in the main inflows to Emerald Lake and in the lake outflow is accurately simulated by the model. The representation of the lake as simply a missing volume with no additional chemical reactions is supported by the observation. The model predicts a change of 2 to 5 microequiv/L in the minimum alkalinity of the lake outflow during snowmelt if the deposition would have to increase between two and 18 times the current load-alkalinity of the lake; the precise increase depends on hydrologic conditions and on the pattern of solute release from the snowpack. An acidic rainstorm that exhausted the alkalinity of the lake was observed during summer 1984 after the lake had stratified, and is the likely cause of the acidification of Emerald Lake

  16. Seasonal and diel environmental conditions predict western pond turtle (Emys marmorata) behavior at a perennial and an ephemeral stream in Sequoia National Park, California

    Science.gov (United States)

    Ruso, Gabrielle; Meyer, Erik; Das, Adrian J.

    2017-01-01

    Managers making decisions may benefit from a well-informed understanding of a species' population size and trends. Given the cryptic nature and habitat characteristics of the western pond turtle (Emys marmorata), however, imperfect detection may be high and population estimates are frequently varied and unreliable. As a case study to investigate this issue, we used temperature dataloggers to examine turtle behavior at 2 long-term monitoring sites with different hydrological characteristics in Sequoia National Park, California, to determine if common stream-survey techniques are consistent with site-specific turtle behavior. Sycamore Creek is an intermittent stream that dries up every summer while the North Fork Kaweah River flows year-round. We found that while turtles spent most of the recorded time in the water (55% in Sycamore Creek and 82% in the North Fork Kaweah River), the timing of traditional surveys only coincided with the turtles' aquatic activity in the North Fork Kaweah River. At Sycamore Creek, turtles were most likely to be in the water at night. In contrast, failure to detect turtles in North Fork Kaweah River is likely owing to the larger size and complexity of the underwater habitat. In both streams, turtles were also more likely to be in the water in the weeks leading up to important changes in hydroperiods. Our findings illustrate the effects that differences in water permanence can have on turtle behavior within the same watershed and how phenotypic plasticity may then affect detection during surveys. Our study highlights the importance of tailoring survey practices to the site-specific behavioral traits of the target species.

  17. 75 FR 13081 - Fisheries off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program

    Science.gov (United States)

    2010-03-18

    ... West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program AGENCY: National... proposed Trawl Rationalization Program. We are interested in feedback concerning proposed regulations to... Pacific Fishery Management Council (Council) has been developing a trawl rationalization program that...

  18. Small protohistoric sites (fishing villages?) on the saurashtra coast, West Coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Sundaresh

    During the maritime archaeological explorations a few sites of protohistoric in nature have been noticed along the saurashtra coast. the trial excavations of a few sites namely Bet Dwarka and Bhokhira on the western saurashtra coast yielded...

  19. Surf zone dynamics along the south Karnataka Coast between Bhatkal and Ullal, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Chandramohan, P.; SanilKumar, V.; Nayak, B.U.; Raju, N.S.N.

    stronger in June, and relatively low and steady during the rest of the year. Coast between Padubidri and Ullal experienced relatively stronger longshore currents than the coast between Maravanthe and Malpe. Longshore sediment transport rate was relatively...

  20. 77 FR 66577 - Fisheries Off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program...

    Science.gov (United States)

    2012-11-06

    ...-XC165 Fisheries Off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program... implemented as part of the trawl rationalization program. FOR FURTHER INFORMATION CONTACT: Jamie Goen, phone..., NMFS implemented a trawl rationalization program, a catch share program, for the Pacific coast...

  1. Natural History of Oregon Coast Mammals

    Science.gov (United States)

    Chris Maser; Bruce R. Mate; Jerry F. Franklin; C.T. Dyrness

    1981-01-01

    The book presents detailed information on the biology, habitats, and life histories of the 96 species of mammals of the Oregon coast. Soils, geology, and vegetation are described and related to wildlife habitats for the 65 terrestrial and 31 marine species. The book is not simply an identification guide to the Oregon coast mammals but is a dynamic portrayal of their...

  2. Black bear damage to northwestern conifers in California: a review

    Science.gov (United States)

    Kenneth O. Fulgham; Dennis Hosack

    2017-01-01

    A total of 789 black bear damaged trees were investigate over a multi-year period on 14 different study sites chosen on lands of four participating timber companies. The sites ranged from 30 to 50 years of age. Four different conifer species were found to have black bear damage: coastal redwood (Sequoia sempervirens (D. Don) Endl.), Douglas-fir (...

  3. Bark water uptake promotes localized hydraulic recovery in coastal redwood crown

    Science.gov (United States)

    J. Mason Earles; Or Sperling; Lucas C. R. Silva; Andrew J. McElrone; Craig R. Brodersen; Malcolm P. North; Maciej A. Zwieniecki

    2015-01-01

    Coastal redwood (Sequoia sempervirens), the world’s tallest tree species, rehydrates leaves via foliar water uptake during fog/rain events. Here we examine if bark also permits water uptake in redwood branches, exploring potential flow mechanisms and biological significance. Using isotopic labelling and microCT imaging, we observed that water...

  4. A Multiple Logistic Regression Model for Predicting the Development of Phytophthora ramorum symptoms in Tanoak (Lithocarpus densiflorus)

    Science.gov (United States)

    Mark Spencer; Kevin O' Hara

    2007-01-01

    Phytophthora ramorum attacks tanoak (Lithocarpus densiflorus) in California and Oregon. We present a stand-level study examining the presence of disease symptoms in individual stems. Working with data from four plots in redwood (Sequoia sempervirens)/tanoak forests in Marin County, and three plots in Mendocino...

  5. Sudden Oak Death in redwood forests: vegetation dynamics in the wake of tanoak decline

    Science.gov (United States)

    Benjamin Ramage; Kevin O’Hara

    2010-01-01

    Numerous lines of inquiry have concluded that tanoak (Lithocarpus densiflorus) will continue to experience drastic population declines and may even disappear entirely from redwood (Sequoia sempervirens) forests as a result of the exotic disease sudden oak death (SOD) (Maloney and others 2005, McPherson and others 2005,...

  6. Using wood quality measures to evaluate second-growth redwood

    Science.gov (United States)

    Stephen L. Quarles; Yana. Vlachovic

    2012-01-01

    Redwood (Sequoia sempervirens) a valued species for use in appearance grade applications, such as decking, exterior siding and interior paneling, because of its dimensional stability. It is also valued for certain exterior-use applications because of its natural decay resistance. Studies have found that young-growth redwood is less resistant to...

  7. Inbreeding depression in selfs of redwood

    Science.gov (United States)

    W. J. Libby; B. G. McCutchan; C. I. Millar

    1981-01-01

    Given the polyploid chromosome constitution of Sequoia sempervirens, there was reason to question whether it would exhibit inbreeding depression. Preliminary results from studies of self and related outcross families are reported as a guide to the selection of trees for redwood seed orchards and breeding-orchards. The data indicate that, compared to...

  8. Bat use of remnant old-growth redwood stands

    Science.gov (United States)

    William J. Zielinski; Steven T. Gellman

    1999-01-01

    Most of the old-growth redwood (Sequoia sempervirens) in Calfornia has been cut; regenerating forests will probably never resemble those that were harvested, and what old growth remains on private land occurs in small, isolated remnant patches. The landscapes in which these stands occur differ so markedly from their original condition that their...

  9. Cradle-to-gate life cycle impacts of redwood forest resource harvesting in northern California

    Science.gov (United States)

    Han-Sup Han; Elaine Oneil; Richard D. Bergman; Ivan L. Eastin; Leonard R. Johnson

    2015-01-01

    The first life cycle impact assessment for redwood (Sequoia sempervirens) forest management activities (i.e. a cradle-to-sawmill gate input) including the growing, harvesting, and hauling of redwood sawlogs to a sawmill was completed. In the stump-to-truck timber harvesting analysis, primary transport activities such as skidding and yarding consumed...

  10. Life-cycle assessment of redwood decking in the United States with a comparison to three other decking materials

    Science.gov (United States)

    R. Bergman; H. Sup-Han; E. Oneil; I. Eastin

    2013-01-01

    The goal of the study was to conduct a life-cycle inventory (LCI) of California redwood (Sequoia sempervirens) decking that would quantify the critical environmental impacts of decking from cradle to grave. Using that LCI data, a life-cycle assessment (LCA) was produced for redwood decking. The results were used to compare the environmental footprint...

  11. Natural seedlings and sprouts after regeneration cuttings in old-growth redwood

    Science.gov (United States)

    Kenneth N. Boe

    1975-01-01

    Natural regeneration of harvested old-growth stands of redwood (Sequoia sempervirens) is one way to start a new forest that is needed quickly for continuous timber production. Natural seedlings and sprouts developing after stands were cut were studied on the Redwood Experimental Forest, northern California. Three types of regeneration cuttings were...

  12. Impacts on soils and residual trees from cut-to-length thinning operations in California's redwood forests

    Science.gov (United States)

    Kyungrok Hwang; Han-sup Han; Susan E. Marshall; Deborah S. Page-Dumroese

    2017-01-01

    Cut-to-length (CTL) harvest systems have recently been introduced for thinning third-growth, young (<25 years old) redwood forests (Sequoia sempervirens (Lamb. ex D. Don) Endl.) in northern California. This type of harvesting can effective for thinning overstocked stands consisting of small-diameter trees. However, forestland managers and government agencies...

  13. COAST code conversion from Cyber to HP

    International Nuclear Information System (INIS)

    Lee, Hae Cho

    1996-04-01

    The transient thermal hydraulic behavior of reactor coolant system in a nuclear power plant following loss of coolant flow is analyzed by use of COAST digital computer code. COAST calculates individual loop flow rates and steam generator pressure drops is a function of time following coast-down of any number of reactor coolant pumps. This report firstly describes detailed work carried out for installation of COAST on HP 9000/700 series and code validation results after installation. Secondly, a series of work is also describes in relation to installation of COAST on Apollo DN10000 series as well as relevant code validation results. Attached is a report on software verification and validation results. 7 refs. (Author) .new

  14. Marine fishery possibilities of the west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Panikkar, N.K.

    Marine fishery activity of the west coast of India is discussed. Sea fish production from the west coast of India makes three fourths of total fish production from Indian coasts. Kerala accounts for the largest production of fish in India...

  15. The ASC Sequoia Programming Model

    Energy Technology Data Exchange (ETDEWEB)

    Seager, M

    2008-08-06

    In the late 1980's and early 1990's, Lawrence Livermore National Laboratory was deeply engrossed in determining the next generation programming model for the Integrated Design Codes (IDC) beyond vectorization for the Cray 1s series of computers. The vector model, developed in mid 1970's first for the CDC 7600 and later extended from stack based vector operation to memory to memory operations for the Cray 1s, lasted approximately 20 years (See Slide 5). The Cray vector era was deemed an extremely long lived era as it allowed vector codes to be developed over time (the Cray 1s were faster in scalar mode than the CDC 7600) with vector unit utilization increasing incrementally over time. The other attributes of the Cray vector era at LLNL were that we developed, supported and maintained the Operating System (LTSS and later NLTSS), communications protocols (LINCS), Compilers (Civic Fortran77 and Model), operating system tools (e.g., batch system, job control scripting, loaders, debuggers, editors, graphics utilities, you name it) and math and highly machine optimized libraries (e.g., SLATEC, and STACKLIB). Although LTSS was adopted by Cray for early system generations, they later developed COS and UNICOS operating systems and environment on their own. In the late 1970s and early 1980s two trends appeared that made the Cray vector programming model (described above including both the hardware and system software aspects) seem potentially dated and slated for major revision. These trends were the appearance of low cost CMOS microprocessors and their attendant, departmental and mini-computers and later workstations and personal computers. With the wide spread adoption of Unix in the early 1980s, it appeared that LLNL (and the other DOE Labs) would be left out of the mainstream of computing without a rapid transition to these 'Killer Micros' and modern OS and tools environments. The other interesting advance in the period is that systems were being developed with multiple 'cores' in them and called Symmetric Multi-Processor or Shared Memory Processor (SMP) systems. The parallel revolution had begun. The Laboratory started a small 'parallel processing project' in 1983 to study the new technology and its application to scientific computing with four people: Tim Axelrod, Pete Eltgroth, Paul Dubois and Mark Seager. Two years later, Eugene Brooks joined the team. This team focused on Unix and 'killer micro' SMPs. Indeed, Eugene Brooks was credited with coming up with the 'Killer Micro' term. After several generations of SMP platforms (e.g., Sequent Balance 8000 with 8 33MHz MC32032s, Allian FX8 with 8 MC68020 and FPGA based Vector Units and finally the BB&N Butterfly with 128 cores), it became apparent to us that the killer micro revolution would indeed take over Crays and that we definitely needed a new programming and systems model. The model developed by Mark Seager and Dale Nielsen focused on both the system aspects (Slide 3) and the code development aspects (Slide 4). Although now succinctly captured in two attached slides, at the time there was tremendous ferment in the research community as to what parallel programming model would emerge, dominate and survive. In addition, we wanted a model that would provide portability between platforms of a single generation but also longevity over multiple--and hopefully--many generations. Only after we developed the 'Livermore Model' and worked it out in considerable detail did it become obvious that what we came up with was the right approach. In a nutshell, the applications programming model of the Livermore Model posited that SMP parallelism would ultimately not scale indefinitely and one would have to bite the bullet and implement MPI parallelism within the Integrated Design Code (IDC). We also had a major emphasis on doing everything in a completely standards based, portable methodology with POSIX/Unix as the target environment. We decided against specialized libraries like STACKLIB for performance, but kept as many general purpose, portable math libraries as were needed by the codes. Third, we assumed that the SMPs in clusters would evolve in time to become more powerful, feature rich and, in particular, offer more cores. Thus, we focused on OpenMP, and POSIX PThreads for programming SMP parallelism. These code porting efforts were lead by Dale Nielsen, A-Division code group leader, and Randy Christensen, B-Division code group leader. Most of the porting effort revolved removing 'Crayisms' in the codes: artifacts of LTSS/NLTSS, Civic compiler extensions beyond Fortran77, IO libraries and dealing with new code control languages (we switched to Perl and later to Python). Adding MPI to the codes was initially problematic and error prone because the programmers used MPI directly and sprinkled the calls throughout the code.

  16. Marine conservation strategies for Maharashtra Coast

    Digital Repository Service at National Institute of Oceanography (India)

    Untawale, A.G.; Dhargalkar, V.K.

    , Wildlife Sanctuaries, Marine Parks and Protected Areas. Detailed studies of 37 sites along the Maharashtra Coast, for their marine biota and also the ecological conditions, were taken up. Out of these, seven most luxuriant areas in marine biodiversity have...

  17. West Coast Rockfish Conservation Areas, 2015

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data delineate Rockfish Conservation Areas (RCA) off the West Coast of the United States for 2015. There are three types of areas closures depicted in this...

  18. Eighteenth annual West Coast theoretical chemistry conference

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-05-01

    Abstracts are presented from the eighteenth annual west coast theoretical chemistry conference. Topics include molecular simulations; quasiclassical simulations of reactions; photodissociation reactions; molecular dynamics;interface studies; electronic structure; and semiclassical methods of reactive systems.

  19. Pacific Coast Groundfish Individual Fishing Quota Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — On January 11, 2011, NOAA Fisheries implemented a new fishery management system for the West Coast Groundfish Trawl Catch Share Program as specified in the...

  20. U.S. Coast Guard (USCG) Districts

    Data.gov (United States)

    Department of Homeland Security — This layer is a polygonal dataset that represents land and maritime boundaries for each representative United States Coast Guard district, which includes district 1,...

  1. Great Lakes CoastWatch Node

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CoastWatch is a nationwide National Oceanic and Atmospheric Administration (NOAA) program within which the Great Lakes Environmental Research Laboratory (GLERL)...

  2. CoastWatch Regions in HDF Format

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The mapped data derived from AVHRR is divided into files for CoastWatch regions of interest. Each file contains multiple data variables stored using the HDF-4...

  3. Human interreference along the coast of Goa

    Digital Repository Service at National Institute of Oceanography (India)

    Mascarenhas, A.

    , the promotion of tourism, increase in population and construction activities have created a heavy demand for resources resulting in congestion on coasts, increase in density of constructions and pressures on infrastructure. Large scale conversions of dune belts...

  4. Distribution of seagrasses along the Indian coast

    Digital Repository Service at National Institute of Oceanography (India)

    Jagtap, T.G.

    the Tamil Nadu Coast. Seagrasses were observed from intertidal to subtidal regions down to 8 m depth. Thalassia hemprichii (Ehrenberg) Aschers. and Cymodocea serrulata (R. Brown) Aschers. and Magnus were the dominant seagrasses in the subtidal zones...

  5. Geological and geophysical surveys of Visakhapatnam coast

    Digital Repository Service at National Institute of Oceanography (India)

    Rao, T.C.S.; Rao, K.M.; Lakshminarayana, S.

    Continuous records of the total earth's magnetic field and the surface sediment samples from the ocean bottom have been collected off Ramakrishna Beach and Lawsons Bay along the Visakhapatnam Coast. The magnetic data has recorded significant...

  6. Connectivity for underway Coast Guard patrol boats

    OpenAIRE

    Busch, Gregory C.

    1997-01-01

    Approved for public release; distribution is unlimited This thesis examines the US Coast Guard patrol boat's ability to effectively exchange operational data while underway. The patrol boat is currently unable to obtain tactical law enforcement information from the central Law Enforcement Information System 2 (LEIS 2) database while on patrol. LEIS 2 provides access to law enforcement information from Coast Guard, FBI, and state and local law enforcement agencies. Availability of this info...

  7. Virginia Coast Reserve 2007 Remote Sensing Experiment

    Science.gov (United States)

    2012-03-09

    beaches, maritime forests , wetlands, tidal flats, and coastal lagoons ; - Natural lands and built up areas along Cape Charles, VA are...representative of barrier island coasts , worldwide; and - It is a major natural resource for the Mid Atlantic Region. Imagery-derived information for...support Joint Logistics Over the Shore. This experiment uses the VCR to study a barrier island coast with coastal lagoons , tidal inlets, and

  8. 33 CFR 23.10 - Coast Guard emblem.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Coast Guard emblem. 23.10 Section... DISTINCTIVE MARKINGS FOR COAST GUARD VESSELS AND AIRCRAFT § 23.10 Coast Guard emblem. (a) The distinctive emblem of the Coast Guard shall be as follows: On a disc the shield of the Coat of Arms of the United...

  9. FutureCoast: "Listen to your futures"

    Science.gov (United States)

    Pfirman, S. L.; Eklund, K.; Thacher, S.; Orlove, B. S.; Diane Stovall-Soto, G.; Brunacini, J.; Hernandez, T.

    2014-12-01

    Two science-arts approaches are emerging as effective means to convey "futurethinking" to learners: systems gaming and experiential futures. FutureCoast exemplifies the latter: by engaging participants with voicemails supposedly leaking from the cloud of possible futures, the storymaking game frames the complexities of climate science in relatable contexts. Because participants make the voicemails themselves, FutureCoast opens up creative ways for people to think about possibly climate-changed futures and personal ways to talk about them. FutureCoast is a project of the PoLAR Partnership with a target audience of informal adult learners primarily reached via mobile devices and online platforms. Scientists increasingly use scenarios and storylines as ways to explore the implications of environmental change and societal choices. Stories help people make connections across experiences and disciplines and link large-scale events to personal consequences. By making the future seem real today, FutureCoast's framework helps people visualize and plan for future climate changes. The voicemails contributed to FutureCoast are spread through the game's intended timeframe (2020 through 2065). Based on initial content analysis of voicemail text, common themes include ecosystems and landscapes, weather, technology, societal issues, governance and policy. Other issues somewhat less frequently discussed include security, food, industry and business, health, energy, infrastructure, water, economy, and migration. Further voicemail analysis is examining: temporal dimensions (salient time frames, short vs. long term issues, intergenerational, etc.), content (adaptation vs. mitigation, challenges vs. opportunities, etc.), and emotion (hopeful, resigned, etc. and overall emotional context). FutureCoast also engaged audiences through facilitated in-person experiences, geocaching events, and social media (Tumblr, Twitter, Facebook, YouTube). Analysis of the project suggests story

  10. Coast Live Oak Thinning Study in the Central Coast of California

    Science.gov (United States)

    Norman H. Pillsbury; Michael J. DeLasaux; Timothy R. Plumb

    1987-01-01

    Abstract: Along-term thinning study was established in ten stands of coast live oak (Quercus agrifolia N in the Central Coast of California. Information about diameter, basal area, and volume growth and yield is being obtained from unthinned control plots and from plots thinned to 50 and 100 square feet of basal area per acre. Descriptive information was also collected...

  11. Cabira rangarajani n. sp. (Polychaeta: Pilargidae) from the Goa coast, central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Mandal, Sumit; Harkantra, S.N.; Salazar-Vallejo, S.I.

    Cabira rangarajani n. sp., is described from the Goa coast, in central west coast of India. It differs from C. brevicirris (Rangarajan, 1964), by having a single type of neurochaetae while the other species has three types. The new species also...

  12. 75 FR 61102 - Magnuson-Stevens Act Provisions; Fisheries Off West Coast States; Pacific Coast Groundfish...

    Science.gov (United States)

    2010-10-04

    ... opportunities to harvest available healthy stocks and meet the objective of the Pacific Coast Groundfish FMP to... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration 50 CFR Part 660 [Docket No... Coast Groundfish Fishery; Inseason Adjustments to Fishery Management Measures AGENCY: National Marine...

  13. 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.

  14. Project Coast: eugenics in apartheid South Africa.

    Science.gov (United States)

    Singh, Jerome Amir

    2008-03-01

    It is a decade since the exposure of Project Coast, apartheid South Africa's covert chemical and biological warfare program. In that time, attention has been focused on several aspects of the program, particularly the production of narcotics and poisons for use against anti-apartheid activists and the proliferation of both chemical and biological weapons. The eugenic dimension of Project Coast has, by contrast, received scant attention. It is time to revisit the testimony that brought the suggestion of eugenic motives to light, reflect on some of the Truth and Reconciliation Commission's findings and search for lessons that can be taken from this troubled chapter in South Africa's history.

  15. Alternative Fuels Data Center: Hybrid and Electric Vehicles Boom Coast to

    Science.gov (United States)

    Coast Hybrid and Electric Vehicles Boom Coast to Coast to someone by E-mail Share Alternative Fuels Data Center: Hybrid and Electric Vehicles Boom Coast to Coast on Facebook Tweet about Alternative Fuels Data Center: Hybrid and Electric Vehicles Boom Coast to Coast on Twitter Bookmark Alternative

  16. Submarine canyons off the Coromandel coast

    Digital Repository Service at National Institute of Oceanography (India)

    Varadachari, V.V.R.; Nair, R.R.; Murty, P.S.N.

    During the 26th Cruise of I.N.S. `KISTNA', a bathymetric survey was carried out in some detail off the Pondicherry coast. This survey has revealed the existence of three sets of distinctly separate canyons between Cuddalore and Palar River...

  17. Synthetic tsunamis along the Israeli coast.

    Science.gov (United States)

    Tobias, Joshua; Stiassnie, Michael

    2012-04-13

    The new mathematical model for tsunami evolution by Tobias & Stiassnie (Tobias & Stiassnie 2011 J. Geophys. Res. Oceans 116, C06026) is used to derive a synthetic tsunami database for the southern part of the Eastern Mediterranean coast. Information about coastal tsunami amplitudes, half-periods, currents and inundation levels is presented.

  18. The Kenya Coast in national perspective

    NARCIS (Netherlands)

    Meilink, H.A.; Hoorweg, J.; Foeken, D.W.J.; Obudho, R.A.

    2000-01-01

    This chapter provides a concise review of the process of regional development and the concomitant growing regional inequalities in Kenya. By focusing on Coast Province, it aims to verify statements which stress that the province has gradually moved to a marginal position in Kenyan society. Examining

  19. US Coast Guard Stations in Louisiana, Geographic NAD83, USCG [coast_guard_stations_USCG_1997

    Data.gov (United States)

    Louisiana Geographic Information Center — This is is a point dataset for the locations and attributes of eight US Coast Guard stations in Louisiana. The attributes include name, address, latitude (NAD27),...

  20. Subtidal benthic macrofauna of the Mangalore Coast, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gopalakrishnan, T.C.; Nair, K.K.C.

    Subtidal macrobenthic fauna from the Mangalore Coast was studied from the shelf areas between the old Mangalore Port and Suratkal, covering an area of approximately 40 km sup(2). Benthic bivalves were the most abundant group, (36160/m sup(2...

  1. West Coast DA Event data - West Coast Toxic Pseudo-nitzschia bloom

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Beginning in the spring of 2015 the US West Coast began to experience the most wide-spread toxic Pseudo-nitzschia bloom to date, after approximately eight years...

  2. 75 FR 24482 - Fisheries Off West Coast States; West Coast Salmon Fisheries; 2010 Management Measures

    Science.gov (United States)

    2010-05-05

    ... West Coast Vancouver Island (WCVI) troll and sport fishery and 15 percent in Alaska's Southeast Alaska... Chinook recreational TAC for north of Cape Falcon (C.5). --Cape Alava to Queets River (La Push Subarea...

  3. 78 FR 3848 - Fisheries Off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program...

    Science.gov (United States)

    2013-01-17

    ... Rationalization Program; Emergency Rule Extension AGENCY: National Marine Fisheries Service (NMFS), National... Coast Groundfish Fishery Trawl Rationalization Program (program) regulations. This emergency rule... trawl rationalization program. Background on this rule was provided in the proposed rule, published on...

  4. California coast sablefish - Reproductive Life History Analysis of Sablefish Populations off the Washington and California Coasts

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Sablefish (Anoplopoma fimbria) have a wide distribution along the Pacific coast, extending from Baja California to Alaska, the Bering Sea and through to the eastern...

  5. Studies on sediment transport along Kerala Coast, south west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Sajeev, R.; Chandramohan, P.; Josanto, V.; Sanakaranarayanan, V.N.

    Longshore sediment transport characteristics of the Kerala Coast have been examined to delineate various physical processes affecting the different coastal environments. Monthly averages of the daily LEO (Littoral Environmental Observation) data...

  6. Marine archaeological investigations along the Saurashtra coast, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Sundaresh; Tripati, S.

    Utilization of the ocean resources on the Saurashtra coast is dating back to the Harappan period (3rd millennium BC) and evidences on the same have been recorded from various archaeological sites such as Lothal, Padri, Nageshwar and Bet Dwarka...

  7. Washington coast sablefish - Reproductive Life History Analysis of Sablefish Populations off the Washington and California Coasts

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Sablefish (Anoplopoma fimbria) have a wide distribution along the Pacific coast, extending from Baja California to Alaska, the Bering Sea and through to the eastern...

  8. Tsunami impacts on morphology of beaches along south Kerala coast, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Rasheed, K.A.A.; Das, V.K.; Revichandran, C.; Vijayan, P.R.; Thottam, T.J.

    TSUNAMI IMPACTS ON MORPHOLOGY OF BEACHES ALONG SOUTH KERALA COAST, WEST COAST OF INDIA K. A. Abdul Rasheed *, V. Kesava Das, C. Revichandran, P. R. Vijayan and Tony. J. Thottam National Institute of Oceanography (NIO), Regional Centre (RC... large waves of height 11 to 11.5m in Kutch region (Pendse 1945). Most of the tsunamis are generated by the earthquake-initiated seabed displacements. Landslides (including underwater landslides), volcanic eruptions, impact of large objects (such...

  9. Heavy mineral occurrence off Hazira, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Vora, K.H.; Mislankar, P.G.; Gujar, A.R.

    The occurrence of heavy mineral placers on the west coast of India are well known from Konkan and Malabar Coast. However, a geological and geophysical investigation (including echosounding and side scan sonar profiles and 7 samples) off Hazira...

  10. Occurrence of Porphyra vietnamensis (Bangiales, Rhodophyta) along the Goa coast

    Digital Repository Service at National Institute of Oceanography (India)

    Dhargalkar, V.K.; Agadi, V.V.; Untawale, A.G.

    The occurrence of a red alga, Porphyra vietnamensis has been studied along the Goa Coast (west coast of India). The growth period was observed during the monsoon (July-October) and optimum growth was recorded during August, when temperature...

  11. Benthic fauna of southwest and southeast coasts of India

    Digital Repository Service at National Institute of Oceanography (India)

    Devi, K.S.; Sheba, P.; Balasubramanian; Venugopal, P.; Sankaranarayanan, V.N.

    Benthos, sediments characteristics and organic matter content were studied along southwest and southeast coasts of India. Number of groups/species varied with the stations and also with the depths. Population density was very low in southeast coast...

  12. 75 FR 53667 - Space Coast Regional Innovation Cluster Competition

    Science.gov (United States)

    2010-09-01

    ... Coast Regional Innovation Cluster Competition AGENCY: Economic Development Administration (EDA... upcoming availability of funding for the Space Coast Regional Innovation Cluster (RIC) Competition under... economic development initiatives aligned with regional cluster and competitiveness analyses to sustain the...

  13. 46 CFR 50.10-25 - Coast Guard Symbol.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Coast Guard Symbol. 50.10-25 Section 50.10-25 Shipping... Definition of Terms Used in This Subchapter § 50.10-25 Coast Guard Symbol. (a) The term Coast Guard Symbol... impression of the Coast Guard Symbol for stamping nameplates and specimens is shown in Figure 50.10-25(b...

  14. Influence of sea ice on Arctic coasts

    Science.gov (United States)

    Barnhart, K. R.; Kay, J. E.; Overeem, I.; Anderson, R. S.

    2017-12-01

    Coasts form the dynamic interface between the terrestrial and oceanic systems. In the Arctic, and in much of the world, the coast is a focal point for population, infrastructure, biodiversity, and ecosystem services. A key difference between Arctic and temperate coasts is the presence of sea ice. Changes in sea ice cover can influence the coast because (1) the length of the sea ice-free season controls the time over which nearshore water can interact with the land, and (2) the location of the sea ice edge controls the fetch over which storm winds can interact with open ocean water, which in turn governs nearshore water level and wave field. We first focus on the interaction of sea ice and ice-rich coasts. We combine satellite records of sea ice with a model for wind-driven storm surge and waves to estimate how changes in the sea ice-free season have impacted the nearshore hydrodynamic environment along Alaska's Beaufort Sea Coast for the period 1979-2012. This region has experienced some of the greatest changes in both sea ice cover and coastal erosion rates in the Arctic: the median length of the open-water season has expanded by 90 percent, while coastal erosion rates have more than doubled from 8.7 to 19 m yr-1. At Drew Point, NW winds increase shoreline water levels that control the incision of a submarine notch, the rate-limiting step of coastal retreat. The maximum water-level setup at Drew Point has increased consistently with increasing fetch. We extend our analysis to the entire Arctic using both satellite-based observations and global coupled climate model output from the Community Earth System Model Large Ensemble (CESM-LE) project. This 30-member ensemble employs a 1-degree version of the CESM-CAM5 historical forcing for the period 1920-2005, and RCP 8.5 forcing from 2005-2100. A control model run with constant pre-industrial (1850) forcing characterizes internal variability in a constant climate. Finally, we compare observations and model results to

  15. Southern right whales Eubalaena australis visit the coasts of ...

    African Journals Online (AJOL)

    spamer

    Counts and photographs of right whales Eubalaena australis taken on aerial surveys of the southern coast of. South Africa between ... of 0.08–2.89 km.h-1. Theodolite tracking of undisturbed groups of right whales from Cape Columbine produced ...... right whales on the coast of Argentina (Outer Coast) between 1971 and ...

  16. South Coast Air Quality Management District Truck Testing | Transportation

    Science.gov (United States)

    Research | NREL South Coast Air Quality Management District Truck Evaluation South Coast Air Quality Management District Truck Evaluation Photo of heavy-duty truck cab. Electric drayage truck Cargo Transportation project, conducted in partnership with the South Coast Air Quality Management

  17. 76 FR 81851 - Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 16 to the Salmon Fishery...

    Science.gov (United States)

    2011-12-29

    .... 101206604-1758-02] RIN 0648-BA55 Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 16 to the Salmon Fishery Management Plan AGENCY: National Marine Fisheries Service (NMFS), National...) to implement Amendment 16 to the Pacific Coast Salmon Fishery Management Plan for Commercial and...

  18. 76 FR 65673 - Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 16 to the Salmon Fishery...

    Science.gov (United States)

    2011-10-24

    .... 101206604-1620-01] RIN 0648-BA55 Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 16 to the Salmon Fishery Management Plan AGENCY: National Marine Fisheries Service (NMFS), National... implement Amendment 16 to the Pacific Coast Salmon Fishery Management Plan for Commercial and Recreational...

  19. 77 FR 75101 - Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 17 to the Salmon Fishery...

    Science.gov (United States)

    2012-12-19

    .... 120813333-2647-01] RIN 0648-BC28 Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 17 to the Salmon Fishery Management Plan AGENCY: National Marine Fisheries Service (NMFS), National.... SUMMARY: NMFS proposes regulations to implement Amendment 17 to the Pacific Coast Salmon Fishery...

  20. 78 FR 10557 - Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 17 to the Salmon Fishery...

    Science.gov (United States)

    2013-02-14

    .... 120813333-3107-02] RIN 0648-BC28 Fisheries Off West Coast States; West Coast Salmon Fisheries; Amendment 17 to the Salmon Fishery Management Plan AGENCY: National Marine Fisheries Service (NMFS), National... implement Amendment 17 to the Pacific Coast Salmon Fishery Management Plan for Commercial and Recreational...

  1. Coasting beam theory applied to bunches

    International Nuclear Information System (INIS)

    Hereward, H.

    1975-01-01

    It is plausible to apply coasting beam criteria to bunches if one has short wavelength disturbances of the bunch and short memory wake fields, where short means short compared with a bunch length, for then one can argue that a piece of the bunch near the middle does not even know that the bunch has ends. Some other conditions probably required to validate this approach are discussed. The local Keil-Schnell criterion is derived from the local dispersion integral

  2. Alien species on the coasts of Turkey

    Directory of Open Access Journals (Sweden)

    M.E. CINAR

    2005-12-01

    Full Text Available The compilation of data on alien species reported from the Turkish coasts yielded a total of 263 species belonging to 11 systematic groups, of which Mollusca had the highest number of species (85 species, followed by Crustacea (51, fishes (43 and phytobenthos (39. The Black Sea is represented by a total of 20 alien species, the Sea of Marmara by 48 species, the Aegean Sea by 98 species and the Levantine Sea by 202 species. The majority of aliens found in the Black Sea and the Sea of Marmara were transported via shipping, whereas the Levantine coast is extensively subjected to Lessepsian migration. Benthic habitats (soft and hard substrata comprise 76% of the total alien species and the pelagic environment is inhabited by thirty-nine species. Almost 50% of aliens collected from the Turkish coasts were found only at 0-10 m depth. Eight species occur at depths deeper than 100 m. The impacts of aliens on the benthic and pelagic ecosystems are presented.

  3. Dune management challenges on developed coasts

    Science.gov (United States)

    Elko, Nicole A.; Brodie, Kate; Stockdon, Hilary F.; Nordstrom, Karl F.; Houser, Chris; McKenna, Kim; Moore, Laura; Rosati, Julie D.; Ruggiero, Peter; Thuman, Roberta; Walker, Ian J.

    2015-01-01

    From October 26-28, 2015, nearly 100 members of the coastal management and research communities met in Kitty Hawk, NC, USA to bridge the apparent gap between the coastal dune research of scientists and engineers and the needs of coastal management practitioners. The workshop aimed to identify the challenges involved in building and managing dunes on developed coasts, assess the extent to which scientific knowledge can be applied to the management community, and identify approaches to provide means to bridge the gap between needs and potential solutions.

  4. 76 FR 38313 - Magnuson-Stevens Act Provisions; Fisheries Off West Coast States; Pacific Coast Groundfish...

    Science.gov (United States)

    2011-06-30

    ... are available, preventing additional harvest in fisheries that are important to coastal communities... document and undergo proposed and final rulemaking before these actions need to be in effect. For the... delay could impair achievement of one of the Pacific Coast Groundfish FMP goals to prevent overfishing...

  5. 78 FR 75268 - Fisheries Off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program...

    Science.gov (United States)

    2013-12-11

    ... Rationalization Program; Cost Recovery AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and... recovery program for the Pacific coast groundfish trawl rationalization program, as required by the...). Allocations to the limited entry trawl fleet for certain species were developed through a parallel process...

  6. 78 FR 7371 - Fisheries Off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program...

    Science.gov (United States)

    2013-02-01

    ... Rationalization Program; Cost Recovery AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and... Office rule goes final before the cost recovery program rule and if it would affect the appeals process... would implement a cost recovery program for the Pacific coast groundfish trawl rationalization program...

  7. Meteorologically induced modulation in sea level off Tikkavanipalem Coast - Central east coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Joseph, A.; Desai, R.G.P.; VijayKumar, K.; Mehra, P.; Nagvekar, S.

    on simultaneous observations of tidal and surface meteorological parameters in four temporal segments of 1-month duration each during a 1-year period in 1997-98. Sea level oscillations along the Tikkavanipalem segment of the central east coast of India contain...

  8. A Holistic Evaluation of a Typical Coast Nourishment on the Danish West Coast

    DEFF Research Database (Denmark)

    Margheritini, Lucia; Frigaard, Peter; Wahl, Niels Arne

    2008-01-01

    The case described in this article regards 4.7 km of beach in Ferring, situated approx. 5 km south to the mouth of the Limfjord strait on the west coast of Denmark. In 2005, this section of the beach was nourished with 721,000 m3 of material in order to protect backshore properties, natural...

  9. A Holistic Evaluation of a Typical Coast Nourishment on the Danish West Coast

    DEFF Research Database (Denmark)

    Margheritini, Lucia; Frigaard, Peter; Wahl, Niels Arne

    2007-01-01

    The case described in this article regards 4.7 km of beach in Ferring, situated approx. 5 km south to the mouth of the Limfjord strait on the west coast of Denmark. In 2005, this section of the beach was nourished with 721,000 m3 of material in order to protect backshore properties, natural herit...

  10. 75 FR 67809 - Magnuson-Stevens Act Provisions; Fisheries Off West Coast States; Pacific Coast Groundfish...

    Science.gov (United States)

    2010-11-03

    ... economic benefits, create individual economic stability, provide full utilization of the trawl sector... taken in the U.S. exclusive economic zone (EEZ) off the coasts of Washington, Oregon, and California... holistic alternatives relative to the biological and socio-economic environment and consistent with the...

  11. Site characterization plan: Gulf Coast salt domes

    International Nuclear Information System (INIS)

    1983-12-01

    The National Waste Terminal Storage (NWTS) program of the US Department of Energy (DOE) is responsible for developing technology and providing facilities for safe, environmentally acceptable, permanent disposal of high-level nuclear waste. The Office of Nuclear Waste Isolation has been intensively investigating Gulf Coast Salt Dome Basin salt domes and bedded salt in Texas and Utah since 1978. In the Gulf Coast, the application of screening criteria in the region phase led to selection of eight domes for further study in the location phase. Further screening in the area phase identified four domes for more intensive study in the location phase: Oakwood Dome, Texas; Vacherie Dome, Louisiana; and Richton Dome and Cypress Creek Dome, Mississippi. For each dome, this Site Characterization Plan identifies specific hydrologic, geologic, tectonic, geochemical, and environmental key issues that are related to the DOE/NWTS screening criteria or affect the feasibility of constructing an exploratory shaft. The Site Characterization Plan outlines studies need to: (1) resolve issues sufficiently to allow one or more salt domes to be selected and compared to bedded salt sites in order to determine a prime salt site for an exploratory shaft; (2) conduct issue-related studies to provide a higher level of confidence that the preferred salt dome site is viable for construction of an exploratory shaft; and (3) provide a vehicle for state input to issues. Extensive references, 7 figures, 20 tables

  12. East coast gas - the big picture

    International Nuclear Information System (INIS)

    Drummond, K.J.

    1998-01-01

    The North American conventional gas resource base was reviewed and an explanation of how Canada's East coast fits into the overall picture was given. At 1996 year end, the total conventional ultimate natural gas resource base for North America was estimated to be 2,695 trillion cubic feet. The most important supply areas are Canada and the United States. Mexico and Alaska are expected to play only a minor role in the overall North American supply. Approximately half of the conventional gas estimated to exist in North America remains to be discovered. Only 78 per cent from the half that has been discovered has been produced, and only 22 per cent of it is remaining as reserves. Of the undiscovered natural gas resource, 38 per cent is in the frontier regions of Alaska and Canada. The growing importance of the East coast of North America as markets for natural gas was reviewed. The distribution of ultimate conventional marketable gas resources for Canada was described. The potential of the Western Canadian Sedimentary Basin (WCSB) and selected frontier areas were assessed. The report showed an undiscovered conventional marketable gas estimate of 122 trillion cubic feet for the WCSB and 107 trillion cubic feet for the Frontier areas. The two most significant areas of discovery in eastern Canada were considered to be the Hibernia oil field on the Grand Banks and the Venture gas field of the Scotian Shelf. 2 tabs., 7 figs

  13. East coast development overview : why now?

    International Nuclear Information System (INIS)

    Anderson, J.

    1998-01-01

    Progress achieved in developing East coast natural gas markets was discussed. Mobil, Shell, Imperial, Mosbacher and Nova Scotia Resources received the go-ahead for the Sable Offshore Energy Project last December. The owner companies created Sable Offshore Energy Inc. (SOE Inc.) for managing and operating the development. Mobil (which has 50 per cent of the total invested in the Sable offshore project) and their partners will spend an average of one million dollars per day in Nova Scotia over the next 22 months in order to ensure that they will deliver gas from the offshore site by late 1999. That is in addition to the 400 million dollars already spent by the consortium in the province of Nova Scotia. Job creation, of particular significance in the Atlantic provinces, is also expected to be a significant factor in lifting the GDP of Nova Scotia to three per cent in 1998. According to an estimate by the Bank of Nova Scotia, the Sable and pipeline projects alone will create more than 7,500 spin-off jobs. The five major factors which make eastern Canada development possible and economically attractive are: (1) resource potential, (2) technological advancements, (3) alliances, (4) market proximity, and (5) the rapidly expanding global market for natural gas. Each of these factors and how they impact on the East coast natural gas industry were discussed in some detail

  14. Beach rocks of the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Wagle, B.G.

    rocks of the central west coast of India. Vol. 10, No.2, 1990 bonate and Miliolite Problems of Gujarat, PRL Ahmedabad:41 42 Kale VS, RajagllIU SN (1985) Neogene and Quaternary transgres sional and regressional history of the west coast of India... (1990) 10: 111-115 Geo-Marine Letters ~1990 Springtr-Vtrlng Ntw Yolldnc. Beach Rocks of the Central West Coast of India B. G. Wagle National Institute of Oceanography, Dona Paula, Goa, India, 403004 Abstract Along the central west coast of India several...

  15. Fishers' knowledge on the coast of Brazil.

    Science.gov (United States)

    Begossi, Alpina; Salivonchyk, Svetlana; Lopes, Priscila F M; Silvano, Renato A M

    2016-06-01

    Although fishers' knowledge has been recently considered into management programmes, there is still the need to establish a better understanding of fishers' perceptions and cognition. Fishers can provide novel information on the biology and ecology of species, which can potentially be used in the management of fisheries. The knowledge fishers have and how they classify nature is empirically based. It is common, for example, to observe that fishers' taxonomy is often represented by the generic level, one of the hierarchical categories of folk classification that is somewhat analogous to the Linnean genus, as it groups organisms of a higher rank than the folk species.In this study we compiled the knowledge fishers have on local fish, such as their folk names, diet and habitat. Five coastal communities widely distributed along the Brazilian coast were studied: two from the northeast (Porto Sauípe and Itacimirim, in Bahia State, n of interviewees = 34), two from the southeast (Itaipu at Niterói and Copacabana at Rio de Janeiro, Rio de Janeiro State, n = 35) and one from the south coast (Pântano do Sul, in Santa Catarina State, n = 23). Fish pictures were randomly ordered and the same order was presented to all interviewees (n = 92), when they were then asked about the species name and classification and its habitat and diet preferences. Fishers make clusters of fish species, usually hierarchically; fishers of the coast of Brazil use mostly primary lexemes (generic names) to name fish; and fishers did not differentiate between scientific species, since the same folk generic name included two different scientific species. Fishers provide information on species to which there is scarce or no information on diet and habitat, such as Rhinobatos percellens (chola guitarfish, arraia viola or cação viola), Sphoeroides dorsalis (marbled puffer, baiacu), Mycteroperca acutirostris (comb grouper, badejo) and Dasyatis guttata (longnose stingray, arraia, arraia

  16. Climatic and physiological effects on leaf and tree-ring stable isotopes in California redwoods

    Science.gov (United States)

    Ambrose, A. R.; Baxter, W.; Wong, C.; Dawson, T. E.; Carroll, A.; Voelker, S.

    2016-12-01

    Variation in the stable isotope composition of organic matter can provide important information about environmental change and biological responses to it. We analyzed the stable carbon (d13C) and oxygen (d18O) isotope ratios of leaves and of the cellulose from individual tree-rings of California's two redwood species to examine how these trees have responded to environmental variation and change in both time and space. Analyses of leaf d13C for both coast redwood (Sequoia sempervirens) and giant sequoia (Sequoiadendron giganteum) from throughout their geographical ranges show a marked gradient with tree height for trees of all sizes and ages but no clear difference among species or populations. The gradient is best explained by tree response to changes in both microenvironment and physiology that are known to change with height. In contrast, leaf d18O for both species showed no clear relationship with height but very clear differences between species and populations with giant sequoia displaying a much stronger inferred leaf-level response to the higher evaporative conditions present in the Sierra Nevada mountains as compared to the coast. Both species showed population-level differences with the driest and warmest sites most distinct from all of the others. Intra-annual analyses of d13C and d18O in tree-rings over a 21-year period (1974-1994) were also used to explore how climate and tree response to climate was recorded for both species. These analyses revealed unique (local) climatic effects and response to the climate for each species and population of both redwood species. Most pronounced was a significant increase in intrinsic Water Use Efficiency (iWUE) derived from d13C data over the study period in both species, and a distinct d18O response in relation to drought (e.g. 1976/1977) and to warmer days and nights and above-average precipitation (e.g., 1982-1985). Patterns of co-variation in d13C and d18O in both species suggest that during dry and also warm

  17. Screening specifications for Gulf Coast salt domes

    International Nuclear Information System (INIS)

    Brunton, G.D.; Laughon, R.B.; McClain, W.C.

    1978-01-01

    A reconnaissance survey of the salt domes of Mississippi, Louisiana, and east Texas is being planned to identify study areas for potential sites for radioactive waste disposal. Preliminary screening specifications were derived for each of the geological evaluation criteria by application of the significant factors that will have an impact on the reconnaissance survey. The procedure for the derivation of each screening specification is discussed. The screening specifications are the official OWI values to be used for the first-cut acceptance for salt dome study areas along the Gulf Coast. The derivation of the screening specifications is illustrated by (1) a statement of the geological evaluation criterion, (2) a discussion of the pertinent factors affecting the criterion, and (3) the evaluation of the value of the specification

  18. Status of Gulf Coast salt dome characterization

    International Nuclear Information System (INIS)

    Swanson, O.E.; Gibbons, M.G.; Deyling, M.A.; McPherson, R.B.

    1982-01-01

    Screening and characterization for a potential nuclear waste repository have progressed through the area phase in these Gulf Coast Salt Basins. The domes studied during the area phase are described briefly. The area characterization studies are outlined, and the resulting reports are listed. Geologic and environmental studies resulted in elimination of four domes from further consideration. The remaining domes were judged acceptable and were classified as to their favorability to license. Site characterization planning for location phase activities deals primarily with technical, environmental, and socioeconomic issues of concern to the states and/or to the Office of Nuclear Waste Isolation (ONWI), Department of Energy (DOE). These issues are listed and discussed. 16 references, 9 figures

  19. Main Coast Winds - Final Scientific Report

    Energy Technology Data Exchange (ETDEWEB)

    Jason Huckaby; Harley Lee

    2006-03-15

    The Maine Coast Wind Project was developed to investigate the cost-effectiveness of small, distributed wind systems on coastal sites in Maine. The restructuring of Maine's electric grid to support net metering allowed for the installation of small wind installations across the state (up to 100kW). The study performed adds insight to the difficulties of developing cost-effective distributed systems in coastal environments. The technical hurdles encountered with the chosen wind turbine, combined with the lower than expected wind speeds, did not provide a cost-effective return to make a distributed wind program economically feasible. While the turbine was accepted within the community, the low availability has been a negative.

  20. Emittance growth in coast in the SPS

    CERN Document Server

    Alekou, A; Bartosik, H; Calaga, R

    2017-01-01

    The CERN SPS will be used as a test-bed for the LHCprototype crab-cavities, which will be installed and testedin the SPS in 2018. As the time available for experimen-tal beam dynamics studies with the crab cavities installedin the machine will be limited, a very good preparation isrequired in advance. One of the main concerns is the in-duced emittance growth, driven by phase jitter in the crabcavities. In this respect, several machine development (MD)studies were performed during the past years to quantifyand characterize the emittance evolution of proton beamsin coast in the SPS. In these proceedings, the experimentalobservations from past years are summarized and the MDstudies from 2016 are presented. Finally, a proposal for anexperimental program for 2017 is discussed.

  1. Erosion Pressure on the Danish Coasts

    DEFF Research Database (Denmark)

    Sørensen, Carlo Sass; Sørensen, Per; Kroon, Aart

    Coastlines around the world are receding due to coastal erosion.With rising sea levels and a potential climatic deterioration due to climate change, erosion rates are likely to increase at many locations in the future.Together with the current preference of people to settle near or directly...... by the ocean, coastal erosion issues become increasingly more important to the human values at risk. Along many Danish coastlines, hard structures already act as coastal protection in the form of groins, breakwaters, revetments etc. These eroding coasts however still lack sand and where the public, in general......, neglects the need for sand replenishment i.e. in the form of repeated sand nourishments. Here we present a conceptual model and method for dividing coastal erosion into acute and chronic erosion pressure, respectively. We focus on the model use for management and climate change adaptation purposes...

  2. Near-coast tsunami waveguiding: phenomenon and simulations

    NARCIS (Netherlands)

    van Groesen, Embrecht W.C.; Adytia, D.; Adytia, D.; Andonowati, A.

    2008-01-01

    In this paper we show that shallow, elongated parts in a sloping bottom toward the coast will act as a waveguide and lead to large enhanced wave amplification for tsunami waves. Since this is even the case for narrow shallow regions, near-coast tsunami waveguiding may contribute to an explanation

  3. Coast redwood science symposium—2016: Past successes and future direction

    Science.gov (United States)

    Richard B. Standiford; Yana Valachovic

    2017-01-01

    There is no more iconic tree or more closely watched forest ecosystem than coast redwood. With its limited range and high value, the coast redwood forest is a microcosm of many of the emerging science and management issues facing today’s forested landscapes. As new information is collected and new management approaches and treatments tried, it is critical that policies...

  4. 76 FR 17782 - Protection for Whistleblowers in the Coast Guard

    Science.gov (United States)

    2011-03-31

    ... ``Keyword'' box, and then clicking ``Search.'' FOR FURTHER INFORMATION CONTACT: If you have questions on..., telephone 202-372-3777, e-mail [email protected] . If you have questions on viewing or submitting... Protection for Whistleblowers in the Coast Guard AGENCY: Coast Guard, DHS. ACTION: Direct final rule...

  5. United States Coast Guard: Officer Corps Military Professional Development Program

    Science.gov (United States)

    2011-06-10

    captain relieved of command after viewing porn on computer,‖ 10 July 2010, http://www.thenewstribune.com/2010/07/ 10/1259108/portland-coast-guard...Coast Guard captain relieved of command after viewing porn on computer,‖ 10 July 2010. http://www.thenewstribune.com/2010/07/ 10/1259108/portland

  6. Resolving orographic rainfall on the Indian west coast

    Digital Repository Service at National Institute of Oceanography (India)

    Suprit, K.; Shankar, D.

    We discuss a method to obtain the spatial estimates of rainfall on the Indian west coast for calculating the surface water budget. The region includes the basin of the Mandovi River, a typical west-coast river whose catchment area includes...

  7. [Nursing perspective on psychiatric care in Ivory Coast].

    Science.gov (United States)

    Lecocq, Dan

    2017-05-01

    Michaël Bilson is a nurse at the psychiatric hospital of Bingerville, in Ivory Coast. Here, he describes his mission supporting the National Health Worker Training Institute. It is the only nurse training school in Ivory Coast. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  8. Acorn Yield During 1988 and 1989 on California's Central Coast

    Science.gov (United States)

    Sergio L. Garcia; Wayne A. Jensen; William H. Weitkamp; William D. Tietje

    1991-01-01

    In 1988, a study was began to evaluate acorn yield of valley oak (Quercus lobata), coast live oak (Q. agrifolia), and blue oak (Q. douglasii) in three of California's central coast counties: Santa Barbara, San Luis Obispo, and San Benito. The purpose of the study was to examine the degree and variability of...

  9. Coast Guard Proceedings. Volume 70, Number 2, Summer 2013

    Science.gov (United States)

    2013-01-01

    and well-being. Most Inuit are coastal people who rely heavily on resources from the ocean for nutritional and cultural survival. The Inuit are a...defend a soccer ball from a crewmember of the Russian vessel Vorovsky at the Coast Guard gym at Base Kodiak, Alaska. U.S. Coast Guard photo by

  10. Thermal responses of marine animals with reference to Kalpakkam Coast (South East Coast of India)

    International Nuclear Information System (INIS)

    Shahul Hameed, P.; Syed Mohamed, H.E.; Krishnamoorthy, R.

    2008-01-01

    Kalpakkam has been chosen as model coastal site to study the impact of thermal discharges on water qualities, benthic animals and fishes. The results of this study are expected to be valid for any given open coastal location on the east and west coast of India. The present study investigates, the impact of the elevated temperature due to thermal discharge on two groups of marine animals viz. Benthos (non-swimming bottom dwellers) and fishes

  11. Recent marine archaeological investigations along the Saurashtra coast, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Sundaresh; Tripati, S.

    ., 2004), Bet Dwarka (Gaur et a]., 2005) and Somnath (Rao et al., 1992) have been focal points during the two decades of marine archaeological re- search on the Saurashtra coast. A large amount of data have been collected on seafaring activities... November 2003 for locating the re- mains of some ancient maritime activities such as an- chors, ancient port installation and submerged habitational site, etc. similar to those found at Dwarka, Bet Dwarka and Somnath. Porbandar is mentioned...

  12. From the African Coast, the invention of two territories: Equatorial Guinea and Ivory Coast

    Directory of Open Access Journals (Sweden)

    Adjoa Nathalie Chiyé Kessé

    2014-08-01

    Full Text Available From the African coast starts Latin American history and part of Europe’s. This article includes a comprehensive analysis on the cultural influence of Africa especially Equatorial Guinea and Côte d’Ivoire in Latin America. From the first European incursions into African coast (xvi century and throughout the colonial era, the paper highlights interethnic relations that occurred following the meeting and coexistence between cultures of both continents, an analysis that is essential to study the survival of traditions, beliefs and African customs that survive today in many regions of Latin America. Considering the importance now given to the recovery of identity traits of the past for studies of multi-ethnicity and re-construction of identities, this article can be used by researchers at Afro-descendance, notable in Latin America, whose research is related to African identity traits in their respective nations. Equatorial Guinea was a Spanish colony along with the Protectorate of Morocco and Western Sahara. The duration of this colony ran from 1885 to 1968. In 1926, it became the Spanish Guinea, and in 1968 it acquired its independance from Spain while retaining the Spanish cultural architecture. Furthermore, the French presence in this first stage of the conquest in Côte d’Ivoire, is provided by the army. The colonial authorities in Paris were not yet sufficiently organized to move their representatives to what was then known as the Poor or Bad People Coast or Coast of teeth. It was the military from Senegal, as base of the French colonial army who assumed the conquest and organization of the Ivorian territory for immediate exploitation of economic resources. It is this improvised framework without legal planning, which led to the idea of the invention of Africa supported by Valentin Mudimbe (1988 and Achille Mbembe (2000.

  13. Chapter 9: The rock coast of the USA

    Science.gov (United States)

    Hapke, Cheryl J.; Adams, Peter N.; Allan, Jonathan; Ashton, Andrew; Griggs, Gary B.; Hampton, Monty A.; Kelly, Joseph; Young, Adam P.

    2014-01-01

    The coastline of the USA is vast and comprises a variety of landform types including barrier islands, mainland beaches, soft bluffed coastlines and hard rocky coasts. The majority of the bluffed and rocky coasts are found in the northeastern part of the country (New England) and along the Pacific coast. Rocky and bluffed landform types are commonly interspersed along the coastline and occur as a result of relative lowering of sea level from tectonic or isostatic forcing, which can occur on timescales ranging from instantaneous to millenia. Recent research on sea cliffs in the contiguous USA has focused on a broad range of topics from documenting erosion rates to identifying processes and controls on morphology to prediction modelling. This chapter provides a detailed synthesis of recent and seminal research on rocky coast geomorphology along open-ocean coasts of the continental United States (USA).

  14. The Gold Coast Integrated Care Model

    Directory of Open Access Journals (Sweden)

    Martin Connor

    2016-07-01

    Full Text Available This article outlines the development of the Australian Gold Coast Integrated Care Model based on the elements identified in contemporary research literature as essential for successful integration of care between primary care, and acute hospital services. The objectives of the model are to proactively manage high risk patients with complex and chronic conditions in collaboration with General Practitioners to ultimately reduce presentations to the health service emergency department, improve the capacity of specialist outpatients, and decrease planned and unplanned admission rates. Central to the model is a shared care record which is maintained and accessed by staff in the Coordination Centre. We provide a process map outlining the care protocols from initial assessment to care of the patient presenting for emergency care. The model is being evaluated over a pilot three year proof of concept phase to determine economic and process perspectives. If found to be cost-effective, acceptable to patients and professionals and as good as or better than usual care in terms of outcomes, the strategic intent is to scale the programme beyond the local health service.

  15. The Caribbean and the Wild Coast

    Directory of Open Access Journals (Sweden)

    Marian Goslinga

    1992-07-01

    Full Text Available [First paragraph] Suriname: a bibliography, 1980-1989. Jo DERKX & IRENE ROLFES. Leiden, the Netherlands: Department of Caribbean Studies, KITLV/Royal Institute of Linguistics and Anthropology, 1990. x + 297 pp. (Paper NLG 25.00 La Caraïbe politique et internationale: bibliographie politologique avec références économiques et socio-culturelles. MICHEL L. MARTIN. Paris: L'Harmattan, 1990. xvii + 287 pp. Suriname. ROSEMARIJN HOEFTE. Oxford and Santa Barbara CA: Clio Press, 1990. xxx + 229 pp. (Cloth US$ 45.00 Although in North American academie circles interest in Suriname (or the Wild Coast, as the area was originally called has always been marginal, the same cannot be said for the Dutch, for whom the former colony continues to hold an enduring fascination. Not only have the Dutch studied the country's historical beginnings assiduously, but Suriname's controversial relationship with the former mother country assures it a definite place in contemporary social and political thought.

  16. Post Fukushima tsunami simulations for Malaysian coasts

    Energy Technology Data Exchange (ETDEWEB)

    Koh, Hock Lye, E-mail: kohhl@ucsiuniversity.edu.my [Office of Deputy Vice Chancellor for Research and Post Graduate Studies, UCSI University, Jalan Menara Gading, 56000 Kuala Lumpur (Malaysia); Teh, Su Yean, E-mail: syteh@usm.my [School of Mathematical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang (Malaysia); Abas, Mohd Rosaidi Che [Malaysian Meteorological Department, MOSTI, Kuala Lumpur (Malaysia)

    2014-10-24

    The recent recurrences of mega tsunamis in the Asian region have rekindled concern regarding potential tsunamis that could inflict severe damage to affected coastal facilities and communities. The 11 March 2011 Fukushima tsunami that crippled nuclear power plants in Northern Japan has further raised the level of caution. The recent discovery of petroleum reserves in the coastal water surrounding Malaysia further ignites the concern regarding tsunami hazards to petroleum facilities located along affected coasts. Working in a group, federal government agencies seek to understand the dynamics of tsunami and their impacts under the coordination of the Malaysian National Centre for Tsunami Research, Malaysian Meteorological Department. Knowledge regarding the generation, propagation and runup of tsunami would provide the scientific basis to address safety issues. An in-house tsunami simulation models known as TUNA has been developed by the authors to assess tsunami hazards along affected beaches so that mitigation measures could be put in place. Capacity building on tsunami simulation plays a critical role in the development of tsunami resilience. This paper aims to first provide a simple introduction to tsunami simulation towards the achievement of tsunami simulation capacity building. The paper will also present several scenarios of tsunami dangers along affected Malaysia coastal regions via TUNA simulations to highlight tsunami threats. The choice of tsunami generation parameters reflects the concern following the Fukushima tsunami.

  17. Developing the east coast gas industry

    International Nuclear Information System (INIS)

    Stedman, C.

    1998-01-01

    Development of a natural gas industry on Canada's east coast was discussed. The various stages of near-term and long-term development were outlined. Opportunities were identified in the areas of Grand Banks gas utilization, third party gas and natural gas liquids transportation and processing, cogeneration, petrochemicals and in energy marketing and services. As an example of this industry development, a corporate review of Novagas Canada Ltd., was presented. The company was formed in January 1994 and is wholly owned by Nova Gas International. Novagas Canada has ultimate resources of 62.9 Tcf of natural gas of which 48.9 Tcf remains to be discovered. The company focuses on non-regulated mid-stream operations of the natural gas/natural gas liquid value chain. Some 800 million dollars have been invested so far in gas processing, liquids and olefins businesses in Nova Scotia and the Grand Banks/Labrador area. The pending Nova/TCPL merger will combine Novagas Canada's and TransCanada Gas Services' midstream assets. The general conclusion was that the resource base is large enough to support development throughout the gas and natural gas liquids value chain, and that a critical mass is required to support development of the necessary gas infrastructure. A sizeable challenge remains in encouraging gas utilization, and in encouraging competition, open access and unbundling of energy services. 2 tabs., 2 figs

  18. Sequestration Options for the West Coast States

    Energy Technology Data Exchange (ETDEWEB)

    Myer, Larry

    2006-04-30

    The West Coast Regional Carbon Sequestration Partnership (WESTCARB) is one of seven partnerships that have been established by the U.S. Department of Energy (DOE) to evaluate carbon capture and sequestration (CCS) technologies best suited for different regions of the country. The West Coast Region comprises Arizona, California, Nevada, Oregon, Washington, Alaska, and British Columbia. Led by the California Energy Commission, WESTCARB is a consortium of about 70 organizations, including state natural resource and environmental protection agencies; national laboratories and universities; private companies working on carbon dioxide (CO{sub 2}) capture, transportation, and storage technologies; utilities; oil and gas companies; nonprofit organizations; and policy/governance coordinating organizations. Both terrestrial and geologic sequestration options were evaluated in the Region during the 18-month Phase I project. A centralized Geographic Information System (GIS) database of stationary source, geologic and terrestrial sink data was developed. The GIS layer of source locations was attributed with CO{sub 2} emissions and other data and a spreadsheet was developed to estimate capture costs for the sources in the region. Phase I characterization of regional geological sinks shows that geologic storage opportunities exist in the WESTCARB region in each of the major technology areas: saline formations, oil and gas reservoirs, and coal beds. California offers outstanding sequestration opportunities because of its large capacity and the potential of value-added benefits from enhanced oil recovery (EOR) and enhanced gas recovery. The estimate for storage capacity of saline formations in the ten largest basins in California ranges from about 150 to about 500 Gt of CO{sub 2}, the potential CO{sub 2}-EOR storage was estimated to be 3.4 Gt, and the cumulative production from gas reservoirs suggests a CO{sub 2} storage capacity of 1.7 Gt. A GIS-based method for source

  19. Infrasound from lightning measured in Ivory Coast

    Science.gov (United States)

    Farges, T.; Millet, C.; Matoza, R. S.

    2012-04-01

    It is well established that more than 2,000 thunderstorms occur continuously around the world and that about 45 lightning flashes are produced per second over the globe. More than two thirds (42) of the infrasound stations of the International Monitoring System (IMS) of the CTBTO (Comprehensive nuclear Test Ban Treaty Organisation) are now certified and routinely measure signals due to natural activity (e.g., airflow over mountains, aurora, microbaroms, surf, volcanoes, severe weather including lightning flashes, …). Some of the IMS stations are located where worldwide lightning detection networks (e.g. WWLLN) have a weak detection capability but lightning activity is high (e.g. Africa, South America). These infrasound stations are well localised to study lightning flash activity and its disparity, which is a good proxy for global warming. Progress in infrasound array data processing over the past ten years makes such lightning studies possible. For example, Farges and Blanc (2010) show clearly that it is possible to measure lightning infrasound from thunderstorms within a range of distances from the infrasound station. Infrasound from lightning can be detected when the thunderstorm is within about 75 km from the station. The motion of the squall zone is very well measured inside this zone. Up to 25% of lightning flashes can be detected with this technique, giving better results locally than worldwide lightning detection networks. An IMS infrasound station has been installed in Ivory Coast for 9 years. The lightning rate of this region is 10-20 flashes/km2/year from space-based instrument OTD (Christian et al., 2003). Ivory Coast is therefore a good place to study infrasound data associated with lightning activity and its temporal variation. First statistical results will be presented in this paper based on 4 years of data (2005-2009). For short lightning distances (less than 20 km), up to 60 % of lightning detected by WWLLN has been one-to-one correlated

  20. Oceanic Loading Eect near the European Coast

    Science.gov (United States)

    Spiridonov, E.; Vinogradova, O.; Boyarskiy, E.; Afanasieva, L.

    2012-04-01

    The dissipation, anisotropy, and rotation constraints of the total oceanic gravimetric effect are analysed. The dependence of the results on the selected P- and S-velocity model (i.e., on the structure of the crust and upper mantle of the Earth) is considered. For calculating the effect of oceanic loading, we apply the method of Legendre polynomial expansion of tidal heights. The CSR3 model data are expanded up to the 720th order. The results yielded by this method closely agree with those calculated from the Green's functions by the LOAD07 program of the ETERNA software. Remarkable advantage of our program over other approaches is that it provides high-speed processing and does not require introducing the near-field formalism. Application of the pre-computed expansions reduces the time of calculations by two orders of magnitude, compared to LOAD07. This is particularly important when analyzing the geographical distributions of the loading effect predicted by different models. Taking dissipation into account improves the total gravimetric effect calculated for the M2 wave near the coast of Europe by 0.1-0.2 mcGal in amplitude and by a few hundredths of degree in phase. Transition from the PREM model to the IASP91 model which is better suitable for Europe changes the model predictions by 0.1-0.4 mcGal in amplitude and by 0.1 to 5-7 degrees in phase. Thus, allowance for dissipation together with the use of the refined data on the crustal and upper-mantle structure of the Earth may contribute, at places, over 0.5 mcGal to the amplitude and a few degrees to the phase of the total oceanic gravimetric effect. In this relation, particular attention should be paid to the regions about the Land's End cape (Cape Cornwall) and Cape Saint Mathieu.

  1. Fall prevention in central coast community pharmacies.

    Science.gov (United States)

    Stuart, Gina M; Kale, Helen L

    2018-04-19

    Fall injuries among people aged 65 years and over (older people) cause substantial health decline and cost to the health system. In 2009 in New South Wales, 25.6% of older people fell in the previous year, and 10.7% (32 000) were hospitalised. Pharmacists are trusted professionals, who interact extensively with older people and have potential to augment fall prevention in pharmacies. This brief report describes how professional development improved pharmacist's knowledge and confidence in fall prevention, encouraged implementation of fall prevention plans and facilitated the provision of brief fall prevention interventions for older clients, after identification of fall risk. In 2014, pharmacists from all Central Coast pharmacies (n = 76) were invited to free, continuing professional development (CPD) in fall prevention. It provided education and resources to identify clients' fall risk, conduct brief fall prevention interventions and implement fall prevention health promotion plans (FPHPP). Pharmacists completed written: Baseline and post-workshop questionnaires to assess changes in pharmacist's knowledge and confidence, and existing fall prevention in pharmacies. Logs of client fall risk and brief fall prevention interventions offered to clients. Four-month follow-up questionnaires to assess implementation of FPHPPs and pharmacy practice changes. Pharmacists representing 36% of pharmacies participated. At four-month follow-up, 67% had implemented FPHPPs, and 62% delivered brief interventions determined by client fall risk. Fall prevention in pharmacies can be augmented through locally provided CPD tailored for pharmacists. SO WHAT?: This model could increase fall prevention reach. It is transferable to settings where health professionals provide services to older adults and require reregistration through professional development. © 2018 Australian Health Promotion Association.

  2. Transformation and Resilience on Urban Coasts

    Science.gov (United States)

    Pelling, M.; Agboola, J.; Birkmann, J.; Grimmond, S. B.; Garschagen, M.; Link, H. D.; Narayanan, P.; Nishi, M.; Ramachandran, R., VI; Solecki, W.; Yamamuro, M.; Welle, T.; Ramachandran, P.; Ajibade, I.

    2016-12-01

    Large coastal cities are at the forefront of efforts to manage vulnerability and build resilience in the face of multiple, interlinked threats. This paper presents results from the Belmont Forum project Transformation and Resilience on Urban Coasts (TRUC). TRUC aims to shift academic and policy discussion from an assessment of resilience options to an understanding of how cities can transition from one mode of resilience planning to another. In particular TRUC questions the relationship between dominant development trajectories and structures and risk management. Should risk management be deployed to support, adjust or fundamentally change dominant development trajectories and its attendant distributional and procedural justice outcomes? TRUC deployed an interdisciplinary approach bringing together scenario workshops, integrated biophysical and vulnerability modelling, expert and household interviews to open spaces for stakeholders to reflect on existing risk management-development relationships, their determinants, preferences for transition to new states and barriers and opportunities for transition. Results are presented for five global megacities: Kolkata, Lagos, London, New York and Tokyo. Contemporary risk management for these global megacities is found to be rooted in historical events with policy innovation following on from extreme events rather than anticipating future risk. Emergent coastal hazards, most importantly heatwave, are consistently underemphasised in planning and technical capacity. Professionals express a desire to move risk management from a reactive mode aimed at protecting development gains towards a more proactive position and one that can embrace integrated development issues. Barriers to this transition include top-down and centralised planning that makes innovation difficult and slow and variable relations between science and policy communities that make it difficult for high level planners to access novel science opinion.

  3. Canadian markets for east coast gas

    International Nuclear Information System (INIS)

    Cowan, N.

    1998-01-01

    Markets for natural gas in Canada's Maritime provinces were discussed. Maritime markets are the largest potential region, currently without access to natural gas, in Canada or the United States. Total market potential was estimated at 430,000 MMBtu/day or in excess of 150 BCF annually, with most market potential distribution in Halifax, Nova Scotia and in the Saint John, New Brunswick area. Maritimes and Northeast Pipeline is involved in a joint effort with Westcoast Energy Inc., Duke Energy, and Mobil Oil Canada in bringing the Sable Gas resources to market. Details of the Sable offshore project were provided. The project involves the development of six separate gas fields located near Sable Island, on the Scotian Shelf, approximately 250 km off the coast of Nova Scotia. The six fields under development represent about 3.5 trillion cubic feet of proven gas supply. Another two trillion cubic feet of gas has been discovered in nearby pools. There is an estimated additional 13 trillion cubic feet of potential gas reserve in the Scotian Shelf region. The two billion dollar offshore project involves twenty-eight production wells, construction and installation of six platforms and a 225 km long two-phase pipeline from the central platform that will transport the product to shore. A gas plant will be constructed on-shore at Goldboro at which point the liquids will be stripped from the gas stream and transported by an onshore pipeline to Point Tupper, Cape Breton Island, to a fractionation facility for further market processing

  4. San Francisco-Pacifica Coast Landslide Susceptibility 2011

    Data.gov (United States)

    California Natural Resource Agency — The San Francisco-Pacifica Coast grid map was extracted from the California Geological Survey Map Sheet 58 that covers the entire state of California and originally...

  5. Biochemical constituents of seaweeds along the Maharashtra coast

    Digital Repository Service at National Institute of Oceanography (India)

    Dhargalkar, V.K.; Jagtap, T.G.; Untawale, A.G.

    Protein, carbohydrate and organic carbon were estimated in 43 marine algal species from different stations along the Maharashtra Coast in India These species showed variation in their biochemical contents Protein varied from 10 to 33% Chlorophyceae...

  6. Deriving nearshore wave climate along South African coast

    CSIR Research Space (South Africa)

    Rossouw, M

    2015-04-01

    Full Text Available The present study addressed aspects of the highly interrelated study area of coastal safety and vulnerability, climate change and setback lines for South African coast. A medium resolution numerical wave analysis was undertaken, in the form...

  7. Longshore sediment transport model for the Indian west coast

    Digital Repository Service at National Institute of Oceanography (India)

    Chandramohan, P.; Nayak, B.U.

    Longshore sediment transport rates for the Indian west coast from Cochin to Porbandar are estimated from ship observed wave data (1968 to 1986). The sediment transport rate is relatively high during the southwest monsoon period from June...

  8. Geomorphology of Goa and Goa Coast. A review

    Digital Repository Service at National Institute of Oceanography (India)

    Wagle, B.G.

    This review on the geomorphology of Goa and the Goa coast included studies on the interpretation of LANDSAT images, aerial photographs and extensive field work. Physiographically the region can be broadly classified into: 1) the coastal tract; 2...

  9. GIS analysis for the marine environmental data off Karnataka coast

    Digital Repository Service at National Institute of Oceanography (India)

    Suryanarayana, A.; Amit, V.S.

    Geographic Information System (GIS) is used to develop the Oceanographic Information System (OIS) for marine environmental data off Karnataka coast. Its goal is to provide a set of tools for oceanographic and bathymetry data assessment and products...

  10. Spitbase of west coast of India: Potential appraisal

    Digital Repository Service at National Institute of Oceanography (India)

    Kunte, P.D.; Wagle, B.G.

    Spectacular spits of different sizes and variety of shapes bordering west coast of India were mapped with remote sensing techniques. By gathering information on geomorphological and locational parameters of spits, "SPITBASE", a database of spits...

  11. United States Coast Pilot (volume 1 through 9)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The United States Coast Pilot is a series of 9 nautical books that cover a wide variety of information important to navigators of U.S. coastal and intercoastal...

  12. Shore protection structures along Kerala coast-low cost alteratives

    Digital Repository Service at National Institute of Oceanography (India)

    DineshKumar, P.K.; Jasanto, P.K.; Sankaranarayanan, V.N.

    Several studies over the last two decades on low cost shore protection measures are reviewed to have an integrated profile with a point on application to the sheltered coasts of Kerala. It is emphasised that these alternative are generally...

  13. Improved Coast Guard Communications Using Commercial Satellites and WWW Technology

    Science.gov (United States)

    1997-06-18

    Information collection and distribution are essential components of most Coast Guard missions. However, information needs have typically outpaced the ability of the installed communications systems to meet those needs. This mismatch leads to reduced ...

  14. On the water quality of selected environments along Bombay coast

    Digital Repository Service at National Institute of Oceanography (India)

    Krishnakumari, L.; Nair, V.R.

    Water quality of three stations representing polluted (Sts. B & S) and relatively unpolluted (St. M) areas along the coast of Bombay was studied during March 1981 to May 1982. Stations B & S were characterised by relatively wider fluctuations...

  15. Office of Coast Survey Wrecks and Obstructions Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Office of Coast Survey's Wrecks and Obstructions database contains information on the identified submerged wrecks and obstructions within the U.S. maritime...

  16. Vertical propagation of baroclinic Kelvin waves along the west coast ...

    Indian Academy of Sciences (India)

    Second, baroclinic Kelvin waves generated in the Bay of Bengal at periods shorter than about 120 ... significant energy remains trapped to the Indian west coast. .... ary condition, enables us to isolate the response of the West India Coastal ...

  17. Morphological development of coasts at very oblique wave incidence

    DEFF Research Database (Denmark)

    Petersen, Dorthe Pia; Deigaard, Rolf; Fredsøe, Jørgen

    2003-01-01

    This study focuses on one distinct feature to be found on coasts exposed to a very oblique wave incidence, namely an accumulating spit. That is a spit where no retreat of the shoreline is going on along the spit. This requires a monotonically decreasing sediment transport capacity from the updrift...... that such a spit grows without changing its shape i.e. an equilibrium form emerge if the coast is exposed to a constant wave climate. During experiments conducted in a wave tank where a uniform stretch of coast was exposed to waves approaching at a very oblique angle an accumulating spit was formed at the down......-drift end of the coast. The spits approached equilibrium forms when constant wave climates were applied. The sediment transport around the spit has been investigated by two-dimensional models. The characteristic length scale for the equilibrium form depends linearly on the width of the surf zone...

  18. 46 CFR 50.10-30 - Coast Guard number.

    Science.gov (United States)

    2010-10-01

    ... boilers and pressure vessels. (c) The Coast Guard number is comprised of the following: (1) Three capital... St. Louis. STB Sturgeon Bay. TAM Tampa. TOL Toledo. VAL Valdez. WNC Wilmington, NC. [CGFR 68-82, 33...

  19. Site selection for offshore wind farms along the Indian coast

    Digital Repository Service at National Institute of Oceanography (India)

    ManiMurali, R.; Vidya, P.J.; Modi, P.; JayaKumar, S.

    This study deals with locating the potential sites for offshore wind farms and also deals with feasibility of installing offshore wind farms through scientific examination of the requirements along the coast of India Offshore wind energy is almost...

  20. Some Actiniaria (Cnidaria: Anthozoa) from the west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Hartog, J. C. Den; Jayasree, V.

    A small collection of five species of Actiniaria from the west coast of India, including three new species, is described and discussed. It concerns Anthopleura anjunae spec. nov., Bunodosoma goanensis spec. nov., Synantheopsis parulekari spec. nov...

  1. Destruction of mangrove vegetation by Sphaeroma terebrans along Kerala coast

    Digital Repository Service at National Institute of Oceanography (India)

    Santhakumari, V.

    Extent of damage causEd. by wood boring isopod crustaceans to mangrove vegetation off Kerala Coast, India has been evaluated in this study, based on a survey and monthly collections from two localities in Cochin backwaters system. Eventhough...

  2. Measurements of sea level off Tikkavanipalem - Coast India

    Digital Repository Service at National Institute of Oceanography (India)

    Joseph, A.; Desai, R.G.P.; Peshwe, V.B.; Desa, E.; VijayKumar, K.; Desa, E.S.; Mehra, P.; Nagvekar, S.

    , and meteorological measurements were also made during this one-year period. These measurements have indicated that the sea level along this coast contains contributions from several classes of motions, principally tidal motions and set-up/set-down motions...

  3. Characteristics of waves off Goa, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    SanilKumar, V.; AshokKumar, K.; Anand, N.M.

    Directional wave measurements were carried out using Datawell directional waverider buoy off Goa along west coast of India during the south west monsoon period in 1996 and the results are presented. Theoretical joint distribution of wave height...

  4. EPA Region 1 Coast Guard Jurisdictional Boundary - Polygons

    Data.gov (United States)

    U.S. Environmental Protection Agency — Jurisdictional boundary between EPA and Coast Guard for EPA Region I. Created from 1:100000 USGS DLGs with greater detail drawn from 1:24000 commercial street data...

  5. EPA Region 1 Coast Guard Jurisdictional Boundary - Arcs

    Data.gov (United States)

    U.S. Environmental Protection Agency — Jurisdictional boundary between EPA and Coast Guard for EPA Region I. Created from 1:100000 USGS DLGs with greater detail drawn from 1:24000 commercial street data...

  6. West Coast Observing System (WCOS) Temperature Data, 2004-2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The West Coast Observing System (WCOS) project provides access to temperature and currents data collected at four of the five National Marine Sanctuary sites,...

  7. Studies on littoral and sublittoral macrophytes around the Mauritius coast

    Digital Repository Service at National Institute of Oceanography (India)

    Jagtap, T.G.

    Floristic composition from the intertidal lagoon, reef, and subtidal (down to 20 m depth) regions, around the mauritius coast were studied to assess its present status. This provides firsthand information on the ecological distribution of mangroves...

  8. 33 CFR 23.15 - Coast Guard ensign.

    Science.gov (United States)

    2010-07-01

    ... distinctive emblem of the Coast Guard in blue and white is placed with its center on a line with the lower..., the emblem covering a horizontal space of three stripes. [CGFR 57-35, 22 FR 6765, Aug. 22, 1957] ...

  9. The Coast Artillery Journal. Volume 59, Number 5, November 1923

    Science.gov (United States)

    1923-11-01

    white blue, red, white, and that upon the restoration King Kamehameha III de- C) Coast Defense, of Pearl Harbor, Coast Defenses of Honolulu, 41st Artil...suspicion that more than one variety of the flag may have existed. All we know certainly of the early history of the flag is that Vancouv~r gave Kamehameha I... Kamehameha , all sorts of mechanical difficultie3 with the tractors and other motor transportation were developed. These organizations took approximately

  10. Coast Guard Proceedings. Volume 71, Number 1, Spring 2014

    Science.gov (United States)

    2014-01-01

    Canada. Rescue aircrew from Coast Guard Air Station Traverse City, Mich., conduct helicopter hoist training with the crew of the Canadian Coast...barge about 70-feet forward of the towing vessel — causing the barge to split nearly in half and dump thousands of gallons of oil into the...on the impeller B. double the liquid velocity through the pump when compared to a single volute C. reduce the hydraulic end thrust D. provide the

  11. Estuarine beaches of the Amazon coast: environmental and recreational characterization

    OpenAIRE

    de Sousa, Rosigleyse C.; Pereira, Luci Cajueiro Carneiro; Jiménez Quintana, José Antonio

    2016-01-01

    The Amazon coast is rich in natural resources, with highly valued natural landscapes and ecological systems. These environments include estuarine beaches, which are important areas for recreational activities. The present study provides an environmental and recreational diagnosis of three of these estuarine beaches on the Amazon coast (Colares, Maruda, and Murubira). The study was conducted in July, 2012, 2013 and 2015. An set of variables was assessed: (i) physical variables (hydrodynamics),...

  12. 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

  13. West Coast Groundfish Bottom Trawl Survey Data - Annual West Coast time series groundfish trawl data collection survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Members of the Fishery Resource Analysis and Monitoring Division Survey Team conduct an annual West Coast Groundfish Bottom Trawl Survey from May - October each...

  14. Aftermath of Hurricane Ike along Texas Coast

    Science.gov (United States)

    2008-01-01

    Three weeks after Hurricane Ike came ashore near Galveston, TX, residents returned to find their houses in ruins. From the coast to over 15 km inland, salt water saturated the soil as a result of the 7m storm surge pushed ashore by the force of the hurricane. The right image was acquired on September 28; the left image was acquired August 15, 2006. Vegetation is displayed in red, and inundated areas are in blue-green. Within the inundated area are several small 'red islands' of high ground where salt domes raised the level of the land, and protected the vegetation. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping, and monitoring of dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance. The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate. Size: 37 by 49.5 kilometers (22.8 by 30.6 miles) Location: 29.8 degrees North latitude, 94.4 degrees West longitude Orientation: North at top Image Data: ASTER Bands 3, 2, and

  15. 78 FR 23135 - Safety Zone; Blue Water Resort & Casino West Coast Nationals; Parker, AZ

    Science.gov (United States)

    2013-04-18

    ...-AA00 Safety Zone; Blue Water Resort & Casino West Coast Nationals; Parker, AZ AGENCY: Coast Guard, DHS... Water Resort & Casino West Coast Nationals. This temporary safety zone is necessary to provide for the....). RPM Racing Enterprises is sponsoring the Blue Water Resort & Casino West Coast Nationals, which is...

  16. Rock coasts and seabird breeding sites : a common optimization

    Science.gov (United States)

    Marie, Eveillard-Buchoux

    2014-05-01

    The North-West coasts of Europe support a lot of part of Northern hemisphere breeding seabirds. In that context, Scotland has a preponderant place and Brittany has southernmost limit of these species areas, for most of them. Outside the breeding season these species live mainly on the open sea and when they do visit the land to breed, they nest on a specific sites : almost all the time they breed on the rock coasts, often on seacliffs. This specific habitat are defines by geomorphological characteristics which offer special forms of the coast. The forms of rock coasts are originally and different because of several proprieties of geology, of lithology, of structures. Breeding seabird, occupying these sites, reveals, in a new light, the richness of these forms and the originals geographic location of the coastline : seabirds prefer nest in exposed coastline like rock caps, rocky points or islands. Seabirds and rock coasts are research topics in environmental geography since several years. However, these combination studies is a new approach in this field and enlargement in the heritage field allows supplement scientific approach. For example, it show that in most important touristic sites, environmental protection measures focused on landscape, habitat or bird, but much more rarely on rock coasts for these intrinsic values. Indeed, in Brittany or in Scotland, seabirds are often stars species in lot of coastal nature reserves, where they're considered like greater ecological heritage. We could see it in touristic promotion field : bird is everywhere, cliff is mostly kept in the dark, as well in leaflets as in speech visitor's guides - without, for example, as a part of this landscape. In all cases, combination of these two heritages is extremely rare. Yet, this current research illustrates the interest and the issue of development of this comparative approach seabirds / rock coasts for optimization of nature tourism and geotourism.

  17. Forecasting sea fog on the coast of southern China

    Science.gov (United States)

    Huang, H.; Huang, B.; Liu, C.; Tu, J.; Wen, G.; Mao, W.

    2016-12-01

    Forecast sea fog is still full of challenges. We have performed the numerical forecasting of sea fog on the coast of southern China by using the operational meso-scale regional model GRAPES (Global/Regional assimilation and prediction system). The GRAPES model horizontal resolution was 3km and with 66 vertical levels. A total of 72 hours forecasting of sea fog was conducted with hourly outputs over the sea fog event. The results show that the model system can predict reasonable characteristics of typical sea fog events on the coast of southern China. The scope of sea fog coincides with the observations of meteorological stations, the observations of the Marine Meteorological Science Experiment Base (MMSEB) at Bohe, Maoming and satellite products of sea fog. The goal of this study is to establish an operational numerical forecasting model system of sea fog on the coast of southern China.

  18. Seaweeds from the Portuguese coast: A potential food resource?

    Science.gov (United States)

    Soares, C.; Machado, S.; Vieira, E. F.; Morais, S.; Teles, M. T.; Correia, M.; Carvalho, A.; Domingues, V. F.; Ramalhosa, M. J.; Delerue-Matos, C.; Antunes, F.

    2017-09-01

    The Portuguese coast presents a large amount of potentially edible seaweeds that are underexploited. The identification of different macroalgae species and their availability in the northern and central coast of the continental territory was assessed. The nutritional value of seaweeds is discussed based on a literature review (when available) focused on data for species collected in Portugal with the aim to define the most important nutritional parameters that should be characterized in the samples. Possible health concerns related with the presence of contaminants are also considered.

  19. Marine archaeological exploration on the western coast, Gulf of Khambhat

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Bhatt, B.K.

    large number of stone anchors at Gogha, Hatab, and Gopnath. These are similar to those reported from the western coast of the Saurashtra, particularly at Dwarka (Gaur et al. 2001), Bet Dwarka (Sundaresh et al. 2004), Miyani, Visawada (Gaur et al. 2007.... Stone Anchors from Bet Dwarka Island, Gujarat Coast, Bulletin of Australian Institute of Maritime Archaeology 26: 43-50 Yang, Q.Z. 1990. South- Song Stone Anchors in China, Korea and Japan, International Journal of Nautical Archaeology 19 (2): 113-121. ...

  20. Historical commercial West Coast rock lobster Jasus lalandii ...

    African Journals Online (AJOL)

    Historic data from 1891 to 2001 on the annual exports of rock lobster Jasus lalandii products (canned, frozen tails, raw whole frozen, cooked whole frozen and live) from the South African west coast are used to estimate the annual commercial landings by this fishery. Conversion factors were developed to convert canned, ...

  1. Combating piracy off the coast of Somalia: current legal challenges

    NARCIS (Netherlands)

    Fink, M.D.; Galvin, R.J.

    2009-01-01

    The ongoing maritime operations against piracy off the coast of Somalia have not only put naval enforcement against piracy at sea in the spotlight, but also the legal aftermath of what to do with pirates after their capture. While warships at sea within the current legal framework of UNCLOS and the

  2. 78 FR 61844 - North Atlantic Coast Comprehensive Study

    Science.gov (United States)

    2013-10-04

    ...: The U.S. Army Corps of Engineers (USACE) is requesting peer reviewed information that would be useful in the preparation of the North Atlantic Coast Comprehensive Study (Hurricane Sandy). The USACE is... information by electronic mail to: [email protected] . Please include your name and contact information in...

  3. Piracy around Africa's west and east coasts: a comparative political ...

    African Journals Online (AJOL)

    The study of politics, or political science, focuses on both the abstract theories and practical operation of government and politics. The phenomenon of piracy on the east and west coasts of Africa brings an important scholarly issue to the fore, namely the significant roles of non-state actors in national, regional and global ...

  4. Intertidal barnacles are not uniformly abundant around the coast of ...

    African Journals Online (AJOL)

    spamer

    Intertidal barnacles are significantly more abundant on the south than on the west ... California Coastal Commission, 3111 Camino del Rio North, Suite 200, San ..... factors that are likely to affect adult growth and sur- .... north-west coast of the U.S.A. (e.g. Dayton 1971, .... SHANNON, L. V. 1985 — The Benguela ecosystem.

  5. 50 CFR 660.518 - Pacific Coast Treaty Indian Rights.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Pacific Coast Treaty Indian Rights. 660.518 Section 660.518 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND...(s) and, insofar as possible, with tribal consensus. [66 FR 44987, Aug. 27, 2001] ...

  6. Historical texts from the Swahili coast (part 2)

    OpenAIRE

    Nurse, Derek

    2012-01-01

    Historical texts from the Swahili coast (Swahili-English): Upper Pokomo Elwana, Mwiini Bajuni Pate Amu, She la Matondoni, Mwani Asili ya Mphokomu Fumo Liongo A story. Proverbs and riddles Mashairi Saidi Haji talking about poetry. Kiteko, a story Verse by MA Abdulkadir, Women`s political songs. An old woman reminisces, Mbaraka Msuri, a hadithi. Ngano A story.

  7. SPECIES COMPOSITION OF PSAMMOPHILIC CILIATES OF SUMGAIT CASPIAN COAST

    Directory of Open Access Journals (Sweden)

    I. Kh. Alekperov

    2014-01-01

    Full Text Available Abstract. Comparative data on the species composition and species saprobic indicators of the psammon ciliates from Sumgait coast of the Caspian Sea are given.Methods. “Alive” samples were collected using a small clean plastic wide mouth bottles. Further processing was carried out under laboratory conditions. Small quantities of soil were examined under a binocular microscope MBS-9 . Ciliates detected microvessel caught and fixed castors for further impregnation kinetoma silver nitrate (Chatton et Lwoff, 1930 or silver proteinate. To determine the keys for ciliates used Foyssner’s major publications (Foissner et al., 1991, 1992, 1999 and “Free-living ciliates Atlas” (Alekperov, 2005.Results. We observed 75 species of ciliates during the studies, which species composition and distribution of the collection points are shown in table 1. Diagrams with average data were made relations groups psammophilous ciliates indicators saprobity different zones for each of the sites investigated Sumgait coast.Main conclusions. Environmental analysis using benthic ciliates indicators saprobity different zones showed that as expected, the industrial zone of Sumgayit coast coast, despite the decline in recent years, the total amount of pollution that is still highly contaminated portion of the coastal zone of the Caspian Sea.

  8. Maritime archaeology of Gujarat: Northwest coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A; Sundaresh

    dominated the Indian Ocean for over a millennia. Underwater investigations have been carried out at various places along the Saurashtra coast and a large number of stone anchors were found. The effect of tide when using jetties and anchoring points along...

  9. Preliminary exploration of south Kanara coast of Karnataka

    Digital Repository Service at National Institute of Oceanography (India)

    Sundaresh

    The port along the South Kanara coast of Karnataka, India were explored. At the port Gangolli, submergence of a few houses and sea level changes at the light house have been observed which were attributed to the transgression of the sea during...

  10. The perception of aquaculture on the Swedish West Coast

    DEFF Research Database (Denmark)

    Thomas, Jean-Baptiste E.; Nordström, Leif Jonas; Risén, Emma

    2018-01-01

    Efforts are on the way on the Swedish West Coast to develop the capacity for cultivation of marine resources, notably of kelps. Given that this is a region of great natural and national heritage, public opposition to marine developments has been identified as a possible risk factor. This survey...

  11. Role of Stakeholders at Cape Coast PPAG Youth Centre ...

    African Journals Online (AJOL)

    The study investigated whether the activities or the roles performed by the various stakeholders at the Cape Coast Planned Parenthood Association of Ghana (PPAG) youth centre impacted positively on the youth behaviour and performance at the centre. The sample comprised 22 teachers, 50 parents and 3 social welfare ...

  12. SOLUTION MINING IN SALT DOMES OF THE GULF COAST EMBAYMENT

    Energy Technology Data Exchange (ETDEWEB)

    Griswold, G. B.

    1981-02-01

    Following a description of salt resources in the salt domes of the gulf coast embayment, mining, particularly solution mining, is described. A scenario is constructed which could lead to release of radioactive waste stored in a salt dome via inadvertent solution mining and the consequences of this scenario are analyzed.

  13. The perception of aquaculture on the Swedish West Coast

    DEFF Research Database (Denmark)

    Thomas, Jean-Baptiste E.; Nordström, Leif Jonas; Risén, Emma

    2017-01-01

    neutral responses. On the whole, respondents were favourable to the depicted scenario. Finally, it was found that the high-awareness group tended to be more supportive than the low or medium-awareness groups, hinting at the benefits of increasing awareness to reduce public aversion and to support...... a sustainable development of aquaculture on the Swedish West Coast....

  14. Age and growth of two populations of West Coast steenbras ...

    African Journals Online (AJOL)

    ... density-dependent competition for food, or biochemical genetic variations between the two populations, are possible reasons for the geographic differences found in the growth rates and length-at-age. Slow growth and longevity are characteristics of West Coast steenbras that make it extremely susceptible to overfishing; ...

  15. Pirates, ports, and coasts in Asia: historical and contemporary perspectives

    NARCIS (Netherlands)

    Kleinen, J.; Osseweijer, M.

    2010-01-01

    Pirates, Ports and Coasts in Asia aims to fill in some of the historical gaps in the coverage of maritime piracy and armed robbery in Asia. The authors highlight a variety of activities ranging from raiding, destroying and pillaging coastal villages and capturing inhabitants to attacking and taking

  16. Coastal defence solutions (approach of ComCoast)

    NARCIS (Netherlands)

    Verhagen, H.J.; Visser, P.J.

    2007-01-01

    Along the North Sea coast, water levels are rising and waves are intensifying due to climate change. The best scientific evidence suggests that both phenomena are likely to accelerate over the coming decades. In some North Sea coastal areas also land is sinking and tidal heights and rates of erosion

  17. Coastal erosion: Coast problem of the Colombian Caribbean

    International Nuclear Information System (INIS)

    Martinez, Jaime Orlando

    1986-11-01

    The erosion promoted by the sea, affects different sectors of the coast of the Colombian Caribbean. The erosion is particularly clear in the central and western sector of the coast. The coastal problem of Punta Sabanilla - Puerto Salgar - Puerto Colombia; Pueblo Nuevo - Lomarena; Manzanillo del Mar; La Boquilla; sector Tolu - Covenas and Arboletes areas are described. This discussion is presented comform to the data obtained in field and of the revision of maps, pictures and other documents related with the coast design. The coastal erosion is not only affecting to low areas conformed by beaches, but rather this phenomenon impacts on rocky cliffs of different elevation; it is the case of El Castillo and Punta Sabanilla to Barranquilla (west Part) sectors . The causes of the setback that it experiences the coast of the Colombian Caribbean are not known in clear form; however they can be contributing such factors as: the elevation of the sea level, phenomenon that has been checked in different costs of the world; equally it can be due to a decrease in the volume of silts contributed by the Magdalena River, inside the coastal area. A third factor would be related with the diapirism of mud, that possibly would be altering the conformation of the Caribbean littoral

  18. The Modeling of Factors That Influence Coast Guard Manpower Requirements

    Science.gov (United States)

    2014-12-01

    applications, and common data warehouses needed to fully develop an effective and efficient manpower requirements engineering and management program. The... manpower requirements determination ensures a ready force, and safe and effective mission execution. Shortage or excess of manpower is the catalyst...FACTORS THAT INFLUENCE COAST GUARD MANPOWER REQUIREMENTS by Kara M. Lavin December 2014 Thesis Advisor: Ronald E. Giachetti Co-Advisor

  19. The Coast Artillery Journal. Volume 67, Number 6, December 1927

    Science.gov (United States)

    1927-12-01

    of some treasonable plot or practise in an Army, the Generall must first assure the place, and then more fully search into the treason, and punish the...in Coast Artillery ~Iemorandum No. 7 for 1928_ 106 Changing Zones With Mortars, 138 The Variable Probable Error 405 Taxation : Taxes Show Staggering

  20. 75 FR 79956 - Protection for Whistleblowers in the Coast Guard

    Science.gov (United States)

    2010-12-21

    ... constitutes evidence of sexual harassment and discrimination, among other subjects. Additionally, changes to... (including sexual harassment or discrimination), gross mismanagement, a gross waste of funds or other... Force, Marine Corps, and Coast Guard''). Section 1034 covers allegations and disclosures of sexual...

  1. Projected inundations on the South African coast by tsunami waves ...

    African Journals Online (AJOL)

    Historical and recent evidence recorded along the South African coast suggests that five tsunami events have occurred since 1960. These were mostly associated with trigger mechanisms associated with sources of remote submarine seismicity along far-field subduction zones and local atmospheric disturbances ...

  2. The West Coast steenbras Lithognathus aureti is a large ...

    African Journals Online (AJOL)

    denise

    casting resin and thin-sectioned through the nucleus ... 80. 85. 90. FORK LENGTH FL (2.5 cm classes). 5. 10. 15. 20. 25. 30. NUMBERS OF FISH. (a) Southern n = 346. (b) Northern n = 293. Fig. 1: Length frequencies of West Coast steenbras sampled (excluding fish .... during the analysis were randomness, no systematic.

  3. Monitoring of harmful algal blooms along the Norwegian coast using ...

    African Journals Online (AJOL)

    A Norwegian monitoring system for harmful algal blooms, consisting of an Observer Network, the State Food Hygiene Control Agency, the Oceanographic Company of Norway, the Institute of Marine Research and the Directorate for Fisheries, is reviewed. Potentially harmful algae on the Norwegian coast are found primarily ...

  4. 76 FR 53329 - Eleventh Coast Guard District Annual Marine Events

    Science.gov (United States)

    2011-08-26

    .... SUMMARY: The Coast Guard is updating and consolidating the list of marine events occurring annually within... not currently reflect changes in actual dates and other required information. The effects of these... location that offers a better vantage point to monitor the event. The location of the PATCOM may also be...

  5. The Portuguese Language on the Gold Coast, 1471-1807

    African Journals Online (AJOL)

    mary

    spoken on the coast today make it possible to construct a glossary of well over 100 ... words] … and other Negro-Portuguese terms in their reports to their ..... 25 ananas 'pineapple'. deM; anassas Mül (216); Twi anansi B/H;; Ga ananse 'wild.

  6. Agglutinated foraminifera from the shelf of east coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Almeida, F.; Setty, M.G.A.P.

    belonging to six families, in a depth zone of 35-222 m of the east-coast of India (between Visakhapatnam and Masulipatnam along the continental shelf-slope region) in terms of lithology, faunal assemblage and their percentage distribution are discussed...

  7. EPA Region 1 Coast Guard Jurisdictional Boundary - Polygons

    Science.gov (United States)

    Jurisdictional boundary between EPA and Coast Guard for EPA Region I. Created from 1:100000 USGS DLGs with greater detail drawn from 1:24000 commercial street data for Region I.This layer is used to determine which agency will be reponsible in the event of an oil spill.

  8. Frequency distribution of foraminifera off Trivandrum, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Rao, K.K.; Kutty, M.K.; Panikkar, B.M.

    Fifty two species belonging to 31 genera of recent foraminifera have been identified from sediment samples collected from the inshore waters. Based on relative abundance of species, it is observed that along the coast, the nearshore region up to 5 m...

  9. Coasts under stress: restructuring and social-ecological health

    National Research Council Canada - National Science Library

    Ommer, Rosemary E

    2007-01-01

    ... the human impact of restructuring and social-ecological health 9 The Restructuring of Health Care on Both Coasts since the 1980 s 183 The Statistical Face of Restructuring and Human Health 210 The Human Voice of Social-Ecological Restructuring: Jobs, Incomes, Livelihoods, Ways of Life, and Human Health 241vi Contents 10 11 Restructuring, Nutrition,...

  10. Temporal variation in Zoanthids abundance at Veraval Coast, Gujarat

    OpenAIRE

    Pradeep C. Mankodi

    2014-01-01

    The corals are very important due to its vulnerability due to environmental conditions. Further, competition within benthic community especially corals and other draw significant attention of scientists in last few decades. Here in this communication we are bring information on Zoanthids distribution and dominance during last 30 years at Veraval coast. Such change detection will be useful to ecologists and coastal zone planners.

  11. EPA Region 1 Coast Guard Jurisdictional Boundary - Arcs

    Science.gov (United States)

    Jurisdictional boundary between EPA and Coast Guard for EPA Region I. Created from 1:100000 USGS DLGs with greater detail drawn from 1:24000 commercial street data for Region I.This layer is used to determine which agency will be reponsible in the event of an oil spill.

  12. Algal blooms: a perspective from the coasts of India

    Digital Repository Service at National Institute of Oceanography (India)

    DeSilva, M.S.; Anil, A.C.; Naik, R.K.; DeCosta, P.M.

    Algal blooms have been documented along the west and east coasts of India. A review of bloom occurrences in Indian waters from 1908 to 2009 points out that a total of 101 cases have been reported. A comparison of the bloom cases reported before...

  13. Wind and area potential analysis of the Lower Saxony coast

    International Nuclear Information System (INIS)

    Pahlke, T.; Gerdes, G.; Keuper, A.

    1993-01-01

    An analysis of the wind and area potential is carried out for 10 areas at the Lower Saxony coast, on behalf of the Lower Saxony Ministry of the Environment. The processes for determining suitable areas, the wind speeds and the possible amounts of energy are introduced. (orig.) [de

  14. Probabilistic estimation of dune retreat on the Gold Coast, Australia

    Science.gov (United States)

    Palmsten, Margaret L.; Splinter, Kristen D.; Plant, Nathaniel G.; Stockdon, Hilary F.

    2014-01-01

    Sand dunes are an important natural buffer between storm impacts and development backing the beach on the Gold Coast of Queensland, Australia. The ability to forecast dune erosion at a prediction horizon of days to a week would allow efficient and timely response to dune erosion in this highly populated area. Towards this goal, we modified an existing probabilistic dune erosion model for use on the Gold Coast. The original model was trained using observations of dune response from Hurricane Ivan on Santa Rosa Island, Florida, USA (Plant and Stockdon 2012. Probabilistic prediction of barrier-island response to hurricanes, Journal of Geophysical Research, 117(F3), F03015). The model relates dune position change to pre-storm dune elevations, dune widths, and beach widths, along with storm surge and run-up using a Bayesian network. The Bayesian approach captures the uncertainty of inputs and predictions through the conditional probabilities between variables. Three versions of the barrier island response Bayesian network were tested for use on the Gold Coast. One network has the same structure as the original and was trained with the Santa Rosa Island data. The second network has a modified design and was trained using only pre- and post-storm data from 1988-2009 for the Gold Coast. The third version of the network has the same design as the second version of the network and was trained with the combined data from the Gold Coast and Santa Rosa Island. The two networks modified for use on the Gold Coast hindcast dune retreat with equal accuracy. Both networks explained 60% of the observed dune retreat variance, which is comparable to the skill observed by Plant and Stockdon (2012) in the initial Bayesian network application at Santa Rosa Island. The new networks improved predictions relative to application of the original network on the Gold Coast. Dune width was the most important morphologic variable in hindcasting dune retreat, while hydrodynamic variables, surge and

  15. 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.

  16. USGS science for the Nation's changing coasts; shoreline change assessment

    Science.gov (United States)

    Thieler, E. Robert; Hapke, Cheryl J.

    2011-01-01

    The coastline of the United States features some of the most popular tourist and recreational destinations in the world and is the site of intense residential, commercial, and industrial development. The coastal zone also has extensive and pristine natural areas, with diverse ecosystems providing essential habitat and resources that support wildlife, fish, and human use. Coastal erosion is a widespread process along most open-ocean shores of the United States that affects both developed and natural coastlines. As the coast changes, there are a wide range of ways that change can affect coastal communities, habitats, and the physical characteristics of the coast?including beach erosion, shoreline retreat, land loss, and damage to infrastructure. Global climate change will likely increase the rate of coastal change. A recent study of the U.S. Mid-Atlantic coast, for example, found that it is virtually certain that sandy beaches will erode faster in the future as sea level rises because of climate change. The U.S. Geological Survey (USGS) is responsible for conducting research on coastal change hazards, understanding the processes that cause coastal change, and developing models to predict future change. To understand and adapt to shoreline change, accurate information regarding the past and present configurations of the shoreline is essential. A comprehensive, nationally consistent analysis of shoreline movement is needed. To meet this national need, the USGS is conducting an analysis of historical shoreline changes along open-ocean coasts of the conterminous United States and parts of Alaska and Hawaii, as well as the coasts of the Great Lakes.

  17. 75 FR 4684 - Fisheries off West Coast States; Pacific Coast Groundfish Fishery; Data Collection for the Trawl...

    Science.gov (United States)

    2010-01-29

    ... Coast groundfish fishery. The trawl rationalization program is intended to increase net economic benefits, create individual economic stability, provide full utilization of the trawl sector allocation... one time reporting will have a significant economic impact on small entities, as the estimated...

  18. 76 FR 35169 - Validation of Merchant Mariners' Vital Information and Issuance of Coast Guard Merchant Mariner's...

    Science.gov (United States)

    2011-06-16

    ... locations around the nation before publication of the interim rule. Given the urgency at the time, the Coast... rule because new security requirements make sense in today's world. The Coast Guard thanks the...

  19. 75 FR 5945 - Proposed Information Collection; Comment Request; Pacific Coast Groundfish, Rationalization...

    Science.gov (United States)

    2010-02-05

    ... Collection; Comment Request; Pacific Coast Groundfish, Rationalization Sociocultural Study AGENCY: National... requiring equivalent information. Fisheries rationalization programs have an impact on those individuals... rationalization program for the Pacific Coast Groundfish limited entry trawl fishery in January 2011. This...

  20. Great Lakes Surface Ice Reports from U.S. Coast Guard

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data consist of ice observations from U.S. Coast Guard vessels operating on the Great Lakes, and from Coast Guard shore stations reported via teletype messages and...

  1. 'Saurashtra stone anchors' (Ring-stones) from Dwarka and Somnath, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Sundaresh; Tripati, S.; Gudigar, P.; Bandodkar, S.N.

    Last two decades of marine archaeological research along the Indian coast has brought to light a large number of stone anchors of different types and sizes, indicating that the Indian coast has witnessed brisk maritime activities in the past...

  2. NWFSC Observer Trawl Data, off West Coast of US, 2002-2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Observer Trawl Data collected during 2002-2006 off West Coast of US. This data product originates from data collected by fishery observers in the West Coast...

  3. NWFSC Observer Fixed Gear Data, off West Coast of US, 2002-2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Observer Fixed Gear Data collected during 2002-2006 off West Coast of US. This data product originates from data collected by fishery observers in the West Coast...

  4. Study of mangrove environment of Maharashtra coast using remote sensing data

    Digital Repository Service at National Institute of Oceanography (India)

    Jagtap, T.G.; Untawale, A.G.; Inamdar, S.N.

    Analysis of remote sensing data indicate approximately 210 km super(2) of the mangrove area along the Maharashtra coast in India. The dominant species along the coast are Rhizophora mucronata, Avicennia officinalis, A. marina, Sonneratia alba, S...

  5. 75 FR 61367 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2010-10-05

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... Measure for Architectural Coatings,'' CARB, October 2007. 4. ``Improving Air Quality with Economic...

  6. 78 FR 37719 - Interim Final Determination To Defer Sanctions; California; South Coast Air Quality Management...

    Science.gov (United States)

    2013-06-24

    ... Determination To Defer Sanctions; California; South Coast Air Quality Management District AGENCY: Environmental... Quality Management District's (SCAQMD) portion of the California State Implementation Plan (SIP) published... California submitted the ``South Coast Air Quality Management District Proposed Contingency Measures for the...

  7. 76 FR 70888 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-11-16

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... Quality Management District--SCAQMD) (1) Rule 1143, ``Consumer Paint Thinners & Multi-purpose Solvents...

  8. 77 FR 66780 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-11-07

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... Control Measure for Architectural Coatings,'' CARB, October 2007. 4. ``Improving Air Quality with Economic...

  9. Occurrence of green alga Ernodesmisverticillata (Kuetzing) Boergesen at Malvan (Maharashtra coast)

    Digital Repository Service at National Institute of Oceanography (India)

    Untawale, A.G.; Agadi, V.V.

    of marine algal resources of the Maharashtra Coast, a green marine algal species was collected and identified as E. verticillata. From the literature it was observed that E. verticillata has not so far been reported from the Indian coast...

  10. 2016 USGS West Coast El-Nino Lidar DEM (WA, OR, CA)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towill collected approximately 75 square miles of coast in Oregon, 486 square miles of coast in Washington and California, and an additional 44 square miles for...

  11. 2016 USGS West Coast El-Nino Lidar (WA, OR, CA)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towill collected approximately 75 square miles of coast in Oregon, 486 square miles of coast in Washington and California, and an additional 44 square miles for...

  12. 75 FR 71187 - Atlantic Coast Financial Corporation, Waycross, GA; Approval of Conversion Application

    Science.gov (United States)

    2010-11-22

    ... DEPARTMENT OF THE TREASURY Office of Thrift Supervision [AC-56 OTS No. H-4438] Atlantic Coast... November 12, 2010, the Office of Thrift Supervision approved the application of Atlantic Coast Federal, MHC and Atlantic Coast Bank, Waycross, Georgia, to convert to the stock form of organization. Copies of...

  13. 75 FR 59686 - Proposed Information Collection; Comment Request; Coast Pilot Report

    Science.gov (United States)

    2010-09-28

    ... Collection; Comment Request; Coast Pilot Report AGENCY: National Oceanic and Atmospheric Administration (NOAA.... 165, or coast.pilot@noaa.gov . SUPPLEMENTARY INFORMATION: I. Abstract NOAA publishes the United States (U.S.) Coast Pilot, a series of nine books which supplement the suite of nautical charts published by...

  14. 78 FR 55214 - Annual Marine Events in the Eighth Coast Guard District, Sabine River; Orange, TX

    Science.gov (United States)

    2013-09-10

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 100 [Docket No. USCG-2013-0723] Annual Marine Events in the Eighth Coast Guard District, Sabine River; Orange, TX AGENCY: Coast Guard, DHS... Neches River in Orange, TX from 3 p.m. on September 20, 2013, through 6 p.m. on September 22, 2013. This...

  15. 77 FR 47519 - Annual Marine Events in the Eighth Coast Guard District, Sabine River; Orange, TX

    Science.gov (United States)

    2012-08-09

    ... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 100 [Docket No. USCG-2012-0656] Annual Marine Events in the Eighth Coast Guard District, Sabine River; Orange, TX AGENCY: Coast Guard, DHS... Regulations for the S.P.O.R.T. Power Boat Neches River in Orange, TX from 3 p.m. on September 21, 2012...

  16. 76 FR 78829 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-12-20

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... approve a revision to the South Coast Air Quality Management District (SCAQMD) portion of the California... Reference (A) South Coast Air Quality Management District (1) Rule 2005, ``New Source Review for RECLAIM...

  17. 77 FR 74372 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-12-14

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... of South Coast Air Quality Management District (SCAQMD) Rule 317, ``Clean Air Act Non- Attainment Fee... of Appeals for the District of Columbia Circuit. South Coast Air Quality Management District v. EPA...

  18. 76 FR 47094 - Revisions to the California State Implementation Plan; South Coast Air Quality Management District

    Science.gov (United States)

    2011-08-04

    ... the California State Implementation Plan; South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District portion of the California State Implementation Plan... following local rule: South Coast Air Quality Management District Rule 1175, Control of Emissions from the...

  19. 76 FR 47074 - Revision to the California State Implementation Plan; South Coast Air Quality Management District

    Science.gov (United States)

    2011-08-04

    ... California State Implementation Plan; South Coast Air Quality Management District AGENCY: Environmental... revision to the South Coast Air Quality Management District portion of the California State Implementation... Submittal A. What rule did the State submit? We are approving South Coast Air Quality Management District...

  20. 78 FR 18853 - Revision to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-03-28

    ... California State Implementation Plan, South Coast Air Quality Management District AGENCY: Environmental... revision to the South Coast Air Quality Management District (SCAQMD) portion of the California State...) * * * (411) * * * (i) * * * (F) South Coast Air Quality Management District. (1) Rule 463, ``Organic Liquid...

  1. 76 FR 30896 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-05-27

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... overwhelmingly formed as a secondary pollutant. (South Coast 2007 Air Quality Management Plan, page ES-9...

  2. 76 FR 41717 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-07-15

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... approve revisions to the South Coast Air Quality Management District (SCAQMD) portion of the California... Governor's Designee. (i) Incorporation by reference. (A) South Coast Air Quality Management District. (1...

  3. 78 FR 59249 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-09-26

    ...] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State...'s Designee. (i) Incorporation by Reference. (A) South Coast Air Quality Management District. (1...

  4. 49 CFR 1520.15 - SSI disclosed by TSA or the Coast Guard.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false SSI disclosed by TSA or the Coast Guard. 1520.15... PROTECTION OF SENSITIVE SECURITY INFORMATION § 1520.15 SSI disclosed by TSA or the Coast Guard. (a) In... available for public inspection or copying, nor does TSA or the Coast Guard release such records to persons...

  5. 33 CFR 125.11 - Form of Coast Guard Port Security Card.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Form of Coast Guard Port Security... WATERFRONT FACILITIES OR VESSELS § 125.11 Form of Coast Guard Port Security Card. The Coast Guard Port... data. ...

  6. Haplosclerida (Porifera: Demospongiae) from the coast of Maranhao State, Brazil, Southwestern Atlantic.

    NARCIS (Netherlands)

    Campos, M.; Mothes, B.; Eckert, R.; van Soest, R.W.M.

    2005-01-01

    This work deals with haplosclerid sponges off the coast of Maranhão State, northeastern coast of Brazilian shelf (southwestern Atlantic). A new species is described, Haliclona (Halichoclona) lernerae. Four species are recorded for the first time for the Brazilian coast: Amphimedon caribica

  7. 77 FR 73320 - Approval of Air Quality Implementation Plans; California; South Coast Air Quality Management...

    Science.gov (United States)

    2012-12-10

    ... Quality Implementation Plans; California; South Coast Air Quality Management District; Prevention of... Implementation Plan (SIP) revision for the South Coast Air Quality Management District (SCAQMD or District... in a August 15, 2012 letter from the South Coast Air Quality Management District regarding specific...

  8. 7 CFR 319.8-12 - From the West Coast of Mexico.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 5 2010-01-01 2010-01-01 false From the West Coast of Mexico. 319.8-12 Section 319.8... Conditions for the Entry of Cotton and Covers from Mexico § 319.8-12 From the West Coast of Mexico. Contingent upon continued freedom of the West Coast of Mexico and of Northwest Mexico from infestations of...

  9. 77 FR 16929 - Safety Zones; Fireworks Displays within the Fifth Coast Guard District

    Science.gov (United States)

    2012-03-23

    ...-AA00 Safety Zones; Fireworks Displays within the Fifth Coast Guard District AGENCY: Coast Guard, DHS... for fireworks displays at various locations within the geographic boundary of the Fifth Coast Guard... by fireworks displays. Entry into or movement within these zones during the enforcement periods is...

  10. 75 FR 53195 - Security Zone; U.S. Coast Guard BSU Seattle, Pier 36, Seattle, WA

    Science.gov (United States)

    2010-08-31

    ... its effects on them and participate in the rulemaking process. Small businesses may send comments on... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2010-0021] RIN 1625-AA87 Security Zone; U.S. Coast Guard BSU Seattle, Pier 36, Seattle, WA AGENCY: Coast Guard, DHS. ACTION...

  11. Individual doses from radionuclides released to the Baltic coast

    International Nuclear Information System (INIS)

    Bergstroem, U.; Nordlinder, S.

    1991-01-01

    Individual doses to critical groups from a continuous unit release of nuclides from high-level waste to a coast area were calculated. The selection of nuclides for this study was based on experience of their importance from a radiological point of view. The coastal area should be representative for average conditions along the Swedish Baltic coast. The costal area was simulated in the model by compartments for water and sediment, respectively. Six exposure pathways for activity from the water and sediment reservoirs were considered. The ecosystem was assumed to be similar to present conditions in Sweden. This was also the case concerning diet and living habits. In addition, the doses from naturally occurring nuclides in the uranium decay chains were calculated, based on natural levels. The calculations were carried out with the BIOPATH and PRISM codes. The latter code was used to obtain the uncertainty in the results due to the uncertainty in the input parameter values. (au) (34 refs., 15 tbls.)

  12. Prevalence of Salmonella among waterfowl along the Texas Gulf coast.

    Science.gov (United States)

    Grigar, M K; Cummings, K J; Rankin, S C

    2017-12-01

    Migratory waterfowl may play a role in the ecology and transmission of zoonotic pathogens, given their ability to travel long distances and their use of varied habitats. Our objectives were to estimate the prevalence of Salmonella among waterfowl along the Texas Gulf coast and to characterize the isolates. Faecal samples were collected from hunter-harvested waterfowl at four wildlife management areas from September through November, 2016. Standard bacteriologic culture methods were used to isolate Salmonella from samples, and isolates were characterized by serotyping and anti-microbial susceptibility testing. The apparent prevalence of faecal Salmonella shedding was 0.5% (2/375). Serotypes identified were Thompson and Braenderup, and both isolates were susceptible to all anti-microbial agents tested. Although faecal contamination of agricultural fields or surface waters could serve as a potential source of zoonotic Salmonella transmission, waterfowl along the Gulf coast during the fall hunting season appear to pose minimal risk. © 2017 Blackwell Verlag GmbH.

  13. Geological and hydrological exploration of Gulf Coast Salt Domes

    International Nuclear Information System (INIS)

    Laughon, R.B.

    1979-01-01

    The geologic exploration program in the Gulf Coast Salt Dome Region is based on a screening process that includes a series of increasingly detailed studies. The screening procedure takes the following steps: (1) determination of regions for further study (in this case, the salt domes of the interior Gulf Coast); (2) regional surveys and the determination of areas within those regions which are thought to be most suitable and which are recommended for further evaluation (in this case, eight specific salt domes); (3) area characterizations and the determination of locations within the areas which are thought to have a high probability of suitability (in this case, two or three of the eight salt domes); (4) location studies and the determination of a potential repository site, which is thought to be suitable and licensable and which is recommended for completion of site characterization studies

  14. Actinides detection in the Pacific Coast of Mexico

    International Nuclear Information System (INIS)

    Ordonez R, E.; Almazan T, M. G.; Cruz C, G. J.; Ramirez S, R.

    2013-10-01

    In this work is evaluated the activity of the alpha emitters, uranium and plutonium, in sand samples and seawater coming from diverse points of the Mexican Pacific Coast (Baja California, Jalisco, Colima and Guerrero). The used techniques were: radiochemistry separation and alpha spectrometry, with these techniques could be observed that the sand contains natural uranium and trace quantities of 239 Pu and 240 Pu combinations. The biggest activity in Pu was found in Finisterra, Baja California Sur (0.13 Bq/kg) and the minor (0 Bq/kg) in Miramar, Colima. The relationship between the geographical localization and the Pu activity suggests that while there is more interaction of the site with the oceanic currents, more is the content of Pu in the sands of the coast. (Author)

  15. The Coast Artillery Journal. Volume 70, Number 2, February 1929

    Science.gov (United States)

    1929-02-01

    described in Ordnance Pamphlet No. 2018 and in such texts as Gunnery and Position Finding for Antiaircraft Artillery, published by the Coast Artillery School...native tribes, the principal one of which, the Hova, formerly ruled the island, are of Malaysian stock. There is but one language spoken. The French...has cost money and taxation has been disproportionately heavy. Madagascar like France is over officialled. A third cause of friction is religion, the

  16. A functional intranet for the United States Coast Guard Unit

    OpenAIRE

    Hannah, Robert Todd.

    1998-01-01

    Approved for public release; distribution in unlimited. This thesis describes the complete development process of a friendly functional Intranet for an operational United States Coast Guard (USCG) electronic Support Unit (ESU) in Alameda, California. The final product is suitable for immediate use. It may also be used as a prototype for future Intranet development efforts. The methodology used to develop a finished, working product provides the core subject matter for this thesis. The disc...

  17. Tidal propagation off the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Unnikrishnan, A.S.

    . [Keywords: Tidal propagation, Mumbai high, Global tidal model, Shelf model, Central west coast of India] Introduction In coastal regions, tides play an important role in determining circulation and hydrography. Barotropic tides coming from the open... with increase in the width of the shelf. Materials and Methods Global tidal models Schwiderski5 used a hydrodynamic interpolation technique to determine the amplitude and phase of tidal constituents of global ocean. Since the availability of satellite...

  18. Regional State of the Coast Report - Western Indian Ocean

    CSIR Research Space (South Africa)

    Bosire, J

    2015-12-01

    Full Text Available protected area in Africa, covering more than 4020 square miles. The region continues to explore new and innovative options for managing oceans and coasts. We also recognise the transboundary nature of shared ocean resources, and our governments have... to list, we would like to express sincere appreciations to the: All Contracting Parties to the Nairobi Convention for supporting the focal points and the Governments of Kenya and Mozambique for graciously hosting and supporting capacity building...

  19. An Analysis of Unit Deployments Through US East Coast Ports

    Science.gov (United States)

    1992-06-01

    comprehensive description of port facilities and an analysis of ship/berth capability. B. PURPOSE To evaluate US east coast commercial port facilities to...an internal highway bridge. This bridge crosses Colgate Creek. The site was formerly a containment area for disposal of excavated material from the...and Sea-Land can berth breakbulk vessels. However, loading at the Sea-Land berth will be time- consuming because of the configuration of the pier. II

  20. Recent Extreme Marine Events at Southern Coast of Black Sea

    Science.gov (United States)

    Ozyurt Tarakcioglu, Gulizar; Cevdet Yalciner, Ahmet; Kirezci, Cagil; Baykal, Cuneyt; Gokhan Guler, Hasan; Erol, Onur; Zaytsev, Andrey; Kurkin, Andrey

    2015-04-01

    The utilization at the coastal areas of Black Sea basin has increased in the recent years with the projects such as large commercial ports, international transportation hubs, gas and petrol pipelines, touristic and recreational infrastructures both along surrounding shoreline. Although Black Sea is a closed basin, extreme storms and storm surges have also been observed with an increasing frequency in the recent years. Among those events, February 1999, March 2013 and September 2014 storms impacted Southern coast of Black sea have clearly shown that the increasing economic value at the coastal areas caused the increasing cost of damages and loss of property by natural hazards. The storm occurred on February 19-20, 1999 is one of the most destructive storm in the last decades. The 1999 event (1999 Southern Black sea storm) caused destruction at all harbors and coastal protection structures along the Black Sea coast of Turkey. The complete damage of the breakwater of Giresun Harbor and damage on the harbor structures and cargo handling equipment were the major impacts of the 1999 Southern Black sea storm. Similar coastal impact have also been observed during the September 24, 2014 storm at 500m East of Giresun harbor. Although there are considerable number of destructive storms observed at southern coast of Black sea recently, data on these events are limited and vastly scattered. In this study the list of recent extreme marine events at South coast of the Black sea compiled and related data such as wind speed, wave height, period, and type of damages are cataloged. Particular attention is focused on the 1999 and 2014 storm events. The meteorological and morphological characteristics which may be considered as the reasons of the generation and coastal amplification of these storms are discussed. ACKNOWLEDGEMENTS: This study is partly supported by Turkish Russian Joint Research Grant Program by TUBITAK (Turkey) and RFBR (Russia), and TUBITAK 213M534 Research Project.

  1. Evaluating transport in the WRF model along the California coast

    OpenAIRE

    C. E. Yver; H. D. Graven; D. D. Lucas; P. J. Cameron-Smith; R. F. Keeling; R. F. Weiss

    2013-01-01

    This paper presents a step in the development of a top-down method to complement the bottom-up inventories of halocarbon emissions in California using high frequency observations, forward simulations and inverse methods. The Scripps Institution of Oceanography high-frequency atmospheric halocarbons measurement sites are located along the California coast and therefore the evaluation of transport in the chosen Weather Research Forecast (WRF) model at these sites is crucial fo...

  2. Evaluating transport in the WRF model along the California coast

    OpenAIRE

    C. Yver; H. Graven; D. D. Lucas; P. Cameron-Smith; R. Keeling; R. Weiss

    2012-01-01

    This paper presents a step in the development of a top-down method to complement the bottom-up inventories of halocarbon emissions in California using high frequency observations, forward simulations and inverse methods. The Scripps Institution of Oceanography high-frequency atmospheric halocarbon measurement sites are located along the California coast and therefore the evaluation of transport in the chosen Weather Research Forecast (WRF) model at these sites is crucial for inverse mo...

  3. Stranding Events of Kogia Whales along the Brazilian Coast.

    Directory of Open Access Journals (Sweden)

    Jailson F Moura

    Full Text Available The genus Kogia, which comprises only two extant species, Kogia sima and Kogia breviceps, represents one of the least known groups of cetaceans in the global ocean. In some coastal regions, however, stranding events of these species have been relatively common over the last decades. Stranding provides the opportunity to investigate the biology of these cetaceans and to explore the epidemiological aspects associated with the mortality of the organisms found on the beach. A number of disturbances (including pelagic fisheries, chemical pollution, boat strikes, and noise pollution have been confirmed to pose a particular threat to the Kogia species. However, no study has yet investigated potential relationships between environmental conditions and stranding events. Here we analyse how a collection of environmental, physical, and biological variables, such as wind, sea surface temperature (SST, water depth, and chlorophyll-a, correlate to Kogia stranding events along the Brazilian coast. The results of our statistical analyses suggest that K. sima is more likely found in warm tropical waters, which provide an explanation for the high frequency of stranding in northeastern Brazilian coast. In contrast, K. breviceps appears to have a preference for temperate and productive waters. Wind speed results to be also an important factor for predicting Kogia strandings in Brazilian coast. Additionally, literature information in combination with our own data and analyses of stomach contents confirms that oceanic cephalopods constitute the primary nutritional source of both Kogia species. By using the available information as a qualitative proxy for habitat preference and feeding ecology, our study provides a novel and comprehensive assessment of Kogia stranding data in relation to environmental conditions along the Brazilian coast.

  4. Excavations at Bokhira (Porbandar) on the Saurashtra coast

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Sundaresh; Joglekar, P.P.

    millennium B.C. Four trenches were laid in agricultural land where a habitational deposit of 50 cm was noticed. A large quantity of pottery, animal bones and other antiq- uities similar to those reported from Bet Dwaika, Rojdi and Rangpur were found... (Gaur et al 2004), Bet Dwarka, Porbandar (Gaur et al 2004a), Prabhas Patan, and Hatab (Pramanik 2004) amongst others. These finds prompted us to look for similar sites on the Saurashtra peninsula, in particular along the coast. Explorations were...

  5. Placer chromite along south Maharashtra, central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gujar, A.R.; Ambre, N.V.; Iyer, S.D.; Mislankar, P.G.; Loveson, V.J.

    . An examination of the electron photomicrographs revealed several features of the chromite grains (Figure 5 c to f ). Grains display mechanical breaking such as con- choidal to sub-conchoidal fractures, V-shaped impact depressions and irregular cracks... . In this article we describe the occurrence, mineralogy, geochemistry, transport mechanisms, provenance and economic feasibility of the chromite deposit of south Maharashtra coast. Methodology Surficial and sub-surficial samples from various physi- ographic...

  6. Littoral transport studies along west coast of India - A reivew

    Digital Repository Service at National Institute of Oceanography (India)

    Kunte, P.D.; Wagle, B.G.; Sugimori, Y.

    an important role in deciding the areas of coastal erosion and accretion, in shaping and orienting coastal landforms and finally in the evolution of the coast. Hence, in the analysis of coastal erosion-accretion problem, for the development of harbour... and construction of coastal structures, the direction, amount and behaviour of long-term average shore drift is of vital importance. Littoral transport is defined as the movement of sediments in the near shore zone by waves and currents. Littoral transport...

  7. Sustainability of future coasts and estuaries: A synthesis

    Science.gov (United States)

    Newton, Alice; Harff, Jan; You, Zai-Jin; Zhang, Hua; Wolanski, Eric

    2016-12-01

    Coasts are at the nexus of the Anthropocene, where land, marginal seas and atmosphere meet along a thin strip that is inhabited by nearly half the human population (Wolanski and Elliott, 2015). Coasts are often fringed by rich habitats such as mangroves, salt-marshes, inter-tidal mud and sand flats, seagrass meadows, kelp forests and coral reefs that provide a valuable range of ecosystem services to humans and to the adjacent marginal seas (Van den Belt and Costanza, 2011). It is the highly dynamic system that is constantly being reshaped by changing natural forces and anthropogenic activities. Coastal systems and human societies form coastal social-ecological systems that increasingly face multiple pressures, which threaten their ecological and economical sustainability. Common pressures include changes to land use and hydrology, land reclamation, coastal sand mining, harbour dredging, pollution and eutrophication, overexploitation such as overfishing, all in the context of climate change. During the 20th Century, coastal scientists studied the problems and issues arising along the coasts (Ramesh et al., 2015). Now, in the 21st Century, their focus must increasingly be about how to solve these problems and issues through better management and innovative approaches. To study these matters, two workshops were held in Yantai, P.R. China, in September 2015, hosted by the Yantai Institute of Coastal Zone Research, CAS. The outcome of these workshops is this special issue of Estuarine, Coastal and Shelf Science.

  8. Climate change at the coast: from global to local

    International Nuclear Information System (INIS)

    Watkinson, A.R.

    2009-01-01

    The IPCC has recently documented substantial changes in the global heat content of the oceans, salinity, sea level, thermal expansion and biogeochemistry. Over the 21. century anticipated climate related changes include: a rise in sea level of up to 0.6 m or more; increases in sea surface temperatures up to 3 deg. C; an intensification of tropical and extra tropical cyclones; larger extreme waves and storm surges; altered precipitation/ run-off; and ocean acidification. The Tyndall Centre has been exploring how to down-scale the global analysis to the local level within the framework of a coastal simulator. The simulator provides information on possible future states of the coast through the 21. Century under a range of climate and socio-economic futures and shoreline management options. It links models within a nested framework, recognizing three scales: (1) global, (2) regional, and (3) local. The linked models describe a range of processes, including marine climate (waves, surges and mean sea level), sand bank morpho-dynamics, wave transformation, shoreline morpho-dynamics, built environment scenarios, ecosystem change, and erosion and flood risk. Analyses from the simulator reinforce conclusions from IPCC WG2: coasts will be exposed to increasing risks over coming decades due to many compounding climate-change factors; the impact of climate change on coasts will be exacerbated by increasing human induced pressures; the unavoidability of sea-level rise even in the longer-term frequently conflicts with present day human development patterns and trends. (author)

  9. Chemical composition of cloudwater collected along the California coast

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, M.R.; Collett, J.; Daube, B.; Munger, J.W.

    1986-04-01

    Nocturnal fogs and low-lying clouds are frequent seasonal occurences along the California coast. During the summer, their frequency may exceed 50% at coastal sites. These clouds form at the base of the Pacific High inversion. Ventilation along the coast is further reduced by land/sea breeze systems, which recirculate the same air parcels several times across the coastline. During the past four years the authors have collected fog water at both urban and nonurban coastal sites. The locations and collection procedures are described. With the exception of one fog event in Morro Bay, all the fog-water sampled has been acidic. The highly acid samples were associated with large concentrations of SO/sub 4//sup 2 -/ and NO/sub 3//sup -/. Ammonia concentrations were comparatively low in the most acidic samples. The marine, continental, and anthropogenic contributions to the loading of solutes in fogwater were estimated using a step-wise fitting method. The sites in and around Los Angeles were most affected by anthropogenic sources. On an equivalent basis, NO/sub 3//sup -/ derived from secondary aerosol, was 2 to 3 times higher than SO/sub 4//sup 2 -/ in the Los Angeles basin. Substantial influences from continental and anthropogenic sources were observed even at the remote coastal sites. Because emissions of NH/sub 3/ and calcareous dust are slight along the coast, acid-neutralizing capacities in coastal air are insufficient to neutralize even small acid inputs.

  10. Meteorological tsunamis along the East Coast of the United States

    Science.gov (United States)

    Rabinovich, A.

    2012-12-01

    Tsunami-like intense sea level oscillations are common along the East Coast of the United States. They are generated by various types of atmospheric disturbances, including hurricanes, frontal passages, tornados, trains of atmospheric gravity waves, pressure jumps, squalls, and gales, that each set up a local, time-limited barotropic response in the affected body of water. These meteorologically induced waves have the same temporal and spatial scales as their seismically generated counterparts and inflict comparable destructions. Observed around the globe, these devastating waves are known locally as "abiki" in Nagaski Bay (Japan), "rissaga" in Spain, "šćiga" along the Croation Coast bordering the Adriatic Sea, "milghuba" in Malta, and "marrobbio" in Italy. Collectively, they may be considered as "meteorological tsunamis" or "meteotsunamis." The updated NOAA tide gauge network with 1 min sampling enabled us to examine resonant amplifications of specific events observed in 2007-2012 and physical properties of meteotsunamis impacting the United States East Coast in general. Of particular interest and focus was the "derecho" event of June 29 - July 2, 2012.

  11. Simulations of the burst and coast swimming behavior of fish

    Science.gov (United States)

    Zhou, Quan; Moored, Keith; Smits, Alexander

    2013-11-01

    An investigation into the burst and coast swimming behavior of fish is simulated with a 2-D, inviscid Boundary Element Method. The fish is modeled as a thin pitching panel that is allowed to free swim. A simple drag model is used where drag is proportional to the velocity squared in order to calculate the cruising velocity. The burst-coast behavior is modeled by a coasting phase, where the panel is motionless, and a burst phase, where the panel pitches with a single sine wave motion. Varying the frequency of the fin-beat and the duration of the duty cycle (the ratio of the burst-phase to the entire period), it is found that it is possible to alter swimming motion to yield a decrease of 50% in the cost of transport with no sacrifice of time-averaged cruising velocity. The analyses of the wake structure demonstrate how vortices shed by the fish affect and shape swimming dynamics. Supported by the Office of Naval Research under Program Director Dr. Bob Brizzolara, MURI grant number N00014-08-1-0642.

  12. Synecology of Cutandia maritima (L. Barbey, a rare psammophytic species along the Montenegrin Coast (East Adriatic Coast

    Directory of Open Access Journals (Sweden)

    Stešević Danijela

    2017-12-01

    Full Text Available Cutandia maritima is a circum-Mediterranean species that inhabits sandy dunes along the coast line. It is fairly frequent on the western Adriatic coast but fairly rare and possibly even non-native in the east. In Croatia, it was discovered in 1990 in Crnika Bay on the island of Rab, which was considered until 2005 to be the only site on the eastern Adriatic coast from the Gulf of Trieste in the north to Corfu in the south. In 2009, the species was briefly reported for Velika plaža (Long Beach in Ulcinj (Montenegro but without details about the habitat type and synecology. The aim of this paper is thus to provide a deeper insight into the ecology and synecology of C. maritima in the eastern Adriatic part of the distribution area. On Velika plaža in Ulcinj, the species was found along the whole sea-inland gradient of sand dunes, in various types of vegetation: [1210] - annual vegetation of drift lines, [2110] - embryonic shifting dunes, [2120] - shifting dunes with Ammophila arenaria (white dunes, [2220] - dunes with Euphorbia terracina, [2130*] - fixed coastal dunes with herbaceous vegetation (grey dunes, and also [2190] - humid dune slacks.

  13. 29 CFR Appendix B to Subpart B of... - Reprint of U.S. Coast Guard Regulations Referenced in Subpart B, for Determination of Coast Guard...

    Science.gov (United States)

    2010-07-01

    ... Subpart B, for Determination of Coast Guard Authorized Persons B Appendix B to Subpart B of Part 1915... Enclosed Spaces and Other Dangerous Atmospheres in Shipyard Employment Pt. 1915, Subpt. B, App. B Appendix B to Subpart B of Part 1915—Reprint of U.S. Coast Guard Regulations Referenced in Subpart B, for...

  14. Geologic record of Hurricane impacts on the New Jersey coast

    Science.gov (United States)

    Nikitina, Daria; Horton, Benjamin; Khan, Nicole; Clear, Jennifer; Shaw, Timothy; Enache, Mihaela; Frizzera, Dorina; Procopio, Nick; Potapova, Marina

    2016-04-01

    Hurricanes along the US Atlantic coast have caused significant damage and loss of human life over the last century. Recent studies suggest that intense-hurricane activity is closely related to changes of sea surface temperatures and therefore the risk of hurricane strikes may increase in the future. A clear understanding of the role of recent warming on tropical cyclone activity is limited by the shortness of the instrumental record. However, the sediment preserved beneath coastal wetlands is an archive of when hurricanes impacted the coast. We present two complimenting approaches that help to extend pre-historic record and assess frequency and intensity of hurricane landfalls along the New Jersey cost; dating overwash deposits and hurricane-induced salt-marsh erosion documented at multiple sites. The stratigraphic investigation of estuarine salt marshes in the southern New Jersey documented seven distinctive erosion events that correlate among different sites. Radiocarbon dates suggest the prehistoric events occurred in AD 558-673, AD 429-966, AD 558-673, Ad 1278-1438, AD 1526-1558 or AD 1630-1643 (Nikitina et al., 2014). Younger sequences correspond with historical land-falling hurricanes in AD 1903 and AD 1821 or AD 1788. Four events correlate well with barrier overwash deposits documented along the New Jersey coast (Donnelley et al., 2001 and 2004). The stratigraphic sequence of salt High resolution sedimentary-based reconstructions of past intense-hurricane landfalls indicate that significant variability in the frequency of intense hurricanes occurred over the last 2000 years.

  15. Checklist of Macroalgae in Waisai Coast, Raja Ampat

    Directory of Open Access Journals (Sweden)

    Retno Suryandari

    2016-05-01

    Full Text Available Macroalgae are very abundant organisms in Indonesian coastal zone. They comprise 8.6% of the total marine organisms.The aim of the research was to identify macroalgae in Waisai Coast Raja Ampat. The results showed that 38 macroalgae were found in Waisai Coast Raja Ampat but only 29 species of macroalgae can be identified. Macroalgae found in Waisai Coast Raja Ampat are green algae, red algae and brown algae. Green algae found and identified are Caulerpa macra (Weber-van Bosse Draisma & Prud’homme, Caulerpa racemosa var. macrophysa (Sonder wx Kutzing W.R.Taylor,  Caulerpa sertularoides (S. Gmelin Howe f. brevipes (J. Agardh Svedilus, Caulerpa cupressoides (Vahl C. Agardh, Halimeda discoidea Decaisne, Halimeda Opuntia (Linnaeus J.V. Lamoroux, Halimeda tuna (J. Ellis & Solander J.V. Lamoroux, Halimeda cylindraceae Decaisne, Halimeda macroloba Decaisne, Avrainvillea erecta (Berkeley A. Gepp & E.S. Gepp, Codium geppiorum O.C.Schmidt, Boergesenia forbesii (Hardvey Feldmann, Valonia ventricosa J. Agardh, Dictyosphaeria cavernosa (Forsskål Børgesen, Chaetomorpha spiralisOkamura, Anadyomene wrightii Harvey ex. J. E. Gray, Neomeris annulata Dickie. Red algae species found and successfully identified areAcanthophora spicifera (M. Vahl Børgesen, Laurencia papilosa (C. Agardh Greville, Gracilaria salicornia (C. Agardh E.Y. Dawson, Amphiora fragilissima (Linnaeus J.V. Lamoroux, Hypnea pannosa J. Agardh. Brown algae species  found and identified are Hormophysa cuneiformis (J.F. Gmelin P.C. Silva, Sargassum aquifolium (Turner C. Agardh, Sargassum polycystum C. Agardh, Turbinaria ornata (Turner J. Agardh, Padina australis Hauck, Canistrocarpus cervicornis (Kutzing De Paula & De Clerck Hydroclathrus clatratus (C. Agardh M. Howe. The only species found in Indonesia is Sargassum aquifolium.

  16. Modeling of Shoreline Changes of Tulamben Coast, Bali Indonesia

    Science.gov (United States)

    Yuanita, Nita; Pratama, Roka; Husrin, Semeidi

    2015-04-01

    Modeling of Shoreline Changes of Tulamben Coast, Bali Indonesia Tulamben coast is located in Lombok Strait on the northeastern coast of Bali island, Indonesia, as part of Karang Asem district. Severe erosion along the coastline has long been occurred in Karang Asem area and threatening houses, religious buildings (Hindu temples), and a national heritage site. As one of most popular diving site in Bali Island, Tulamben attracted many local and international tourist since 1980. The main attraction of Tulamben diving site is the USAT Liberty ship that was shipwrecked in Tulamben beach in 1942, after attacked by Japanese torpedo in Lombok Strait. Currently about 150 diver visit Tulamben per day. Due to physical changes of coastal environmental such as coastal erosion, sliding, and scouring, the shipwreck is vulnerable. It had been slipped off the beach several times and is predicted would be moved to deeper offshore floor if it is not protected. Coastal erosion in Karang Asem district is occurred probably due to interaction between cross-shore and long-shore wave-generated current and river sand supply decreasing after sand mining activities. In this study, the effect of cross-shore and longshore transport to coastal erosion in Tulamben is analyzed by doing numerical model. Numerical simulation of shoreline changes is performed by using Beach Processes Module of CEDAS (Coastal Engineering Design and Analysis System) consists of SBEACH and GENESIS. The model domain is covered Karang Asem coastline about 60 km length and wave data is calculated from hourly wind data (10 years). Simulated shoreline is calibrated using shoreline data from 1972 to 2013. Using calibrated model, then the simulation is performed from 2003 - 2013. From the simulation it is determined that longshore current and longshore sediment contribute to coastal erosion in Tulamben. Based on model results, several alternatives of general layout and configuration of coastal protection structures is proposed

  17. Environmental assessment of rosetta area,mediterranean sea coast - egypt

    International Nuclear Information System (INIS)

    Aly, A.M.A.

    2013-01-01

    This study is titled (Environmental Assessment of Rosetta Area,Mediterranean Sea Coast, Egypt). The environmental assessment can be defined here as the process of assessing the potential impacts (positive or negative) of the presence of certain influential on a particular ecosystem. Samples were collected from Abu Khashaba beach area, Rosetta on the Mediterranean Sea coast. Samples of the beach sediments, sea-water and the scattered shells in this coastal region were collected. Sediments in this region are characterized by its large content of heavy metals, which added to these sediments its black color. It is known that these black sands occurred along the Mediterranean Sea coast from Alexandria to Rafah. The advantage of these black sand deposits is their contents from multiple economic metals which have important industrial uses, such as magnetite, ilmenite, rutile, monazite, zircon, garnet and other important minerals. Ten sampling profiles spaced in-between by about 600 m distance, and extending into the land from the shoreline for about 50 m or less. Along each profile, three sediment samples were collected; the first sample from the surface at the beach line, the second sample from the end of the foreshore area at a depth of about 50 cm and the third sample was taken from the backshore area at a depth of about 1 m. Extending from each profile into the sea, marine-water samples were taken at a distance of about 3 m from the beach line, and from a depth of about 1 m below the sea surface. The shells samples were collected from the scattered shells on the beach. By examination of these samples a 15 different shells types were defined.

  18. US Coast Guard national spill response resource inventory

    International Nuclear Information System (INIS)

    Giraitis, D.M.

    1993-01-01

    The Oil Pollution Act of 1990 (OPA 90) mandated the establishment of a National Response Unit, now renamed the National Strike Force Coordination Center (NSFCC). Among the duties OPA 90 assigned to this new Coast Guard unit was to compile and maintain a comprehensive list of spill removal resources, personnel, and equipment that is available to Federal and State agencies and to the public. The Coast Guard's Research and Development Center has been developing this project, the Response Resource Inventory (RRI), for one year. The RRI is expected to be operational, with resource data from industry in the data base, by the time of the International Oil Spill Conference in March 1993. The RRI will contain data on skimmers, specialized oil recovery vessels, oil/water separators, dispersants and delivery systems, etc. Previous attempts to maintain a national data base of these response resources, including an earlier Coast Guard system called the Spill Cleanup Equipment Inventory System (SKIM), fell into disuse for a number of reasons. Inaccuracies caused by inadvertent double counting of equipment and outdated information coupled with difficulties in accessing the information were common shortfalls of early systems. During the development of the RRI, user-group meetings were held to determine system requirements and study the failures of previous systems. Methods of obtaining and entering data were a major concern during RRI development. A data collection system that supplies the resource holder with a DOS-formatted diskette containing a collection program will be used. The program will make extensive use of pick lists to minimize the data entry burden on the resource holder and maintain standard entries. When the program is completed, the diskette will be mailed to the NSFCC, where the data will be transferred quickly to the RRI data base. Easy access to the data for the public and industry will be afforded mainly through a computer bulletin board

  19. Interaction for solitary waves in coasting charged particle beams

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Shi-Wei; Hong, Xue-Ren; Shi, Yu-Ren; Duan, Wen-shan, E-mail: duanws@nwnu.edu.cn [College of Physics and Electronic Engineering and Joint Laboratory of Atomic an Molecular Physics of NWNU and IMPCAS, Northwest Normal University, Lanzhou 730070 (China); Qi, Xin; Yang, Lei, E-mail: lyang@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); Han, Jiu-Ning [College of Physics and Electromechanical Engineering, Hexi University, Zhangye 734000 (China)

    2014-03-15

    By using the extended Poincare-Lighthill-Kuo perturbation method, the collision of solitary waves in a coasting charged particle beams is studied. The results show that the system admits a solution with two solitary waves, which move in opposite directions and can be described by two Korteweg-deVries equation in small-amplitude limit. The collision of two solitary waves is elastic, and after the interaction they preserve their original properties. Then the weak phase shift in traveling direction of collision between two solitary waves is derived explicitly.

  20. Radioactive sedimentary deposits concerning the coasts of the Camargue

    International Nuclear Information System (INIS)

    2000-01-01

    CRII-RAD has detected abnormal levels of radioactivity on some beaches situated near the Espiguette lighthouse in the south-east coast of France. This document presents the in-situ measurements performed by IPSN. These results confirm a relevant increase of gamma radiation in sedimentary deposits. Chemical analyses have shown that this radioactivity is due to potassium 40 and radionuclides from thorium and uranium series. There is no doubt about the natural origin of this radioactivity but thorough geo-chemical studies are necessary to see whether these radioactive sands are a consequence of nearby industrial activities concerning ore dressing. (A.C.)

  1. Long term impact of climate change on the metropolitan coast

    International Nuclear Information System (INIS)

    2011-01-01

    In its first part, this report describes global physical phenomena: air and sea temperature rise, modification of the tempest regime, precipitations, ocean stratification. Then, it describes some more specific physical effects of climate change: average sea level rise, sea currents (global, regional and local oceanic circulation), and wave modification on the coast. It describes the effects of various media due to sea submersion, erosion and accretion, ocean acidification, salinization increase of underground coastal waters, modification of the composition of biotic communities, biological invasions, and appearance of new toxicities for mankind

  2. Wave characteristics off Visakhapatnam coast during a cyclone

    Digital Repository Service at National Institute of Oceanography (India)

    SanilKumar, V.; AshokKumar, K.; Raju, N.S.N.

    CURRENT SCIENC E, VOL. 86, NO. 11, 10 JUNE 2004 *For correspondence. (e - mail: sanil@darya.nio.org) Wave characteristics off Visakhapatnam coast du r ing a cyclone V. Sanil Kumar*, K. Ashok Kumar and N. S. N. Raju Ocean Engineering Division.... Wave period The variation of average wave period ( T 02 ), period corr e- sponding to maximum wave height ( T H max ) and wave p e- riod corresponding to maximum spectral energy ( T p ) during the observation period are shown in Figure 4. Du r- i ng...

  3. Energy Loss of Coasting Gold Ions and Deuterons in RHIC

    CERN Document Server

    Abreu, N P; Brown, K; Burkhardt, H; Butler, J; Fischer, W; Harvey, M; Tepikian, S

    2008-01-01

    The total energy loss of coasting gold ion beams at two different energies and deuterons at one energy were measured at RHIC, corresponding to a gamma of 75.2, 107.4 and 108.7 respectively. We describe the experiment and observations and compare the measured total energy loss with expectations from ionization losses at the residual gas, the energy loss due to impedance and synchrotron radiation. We find that the measured energy losses are below what is expected from free space synchrotron radiation. We believe that this shows evidence for suppression of synchrotron radiation which is cut off at long wavelength by the presence of the conducting beam pipe.

  4. Sea level changes along the Indian coast: Observations and projections

    Digital Repository Service at National Institute of Oceanography (India)

    Unnikrishnan, A.S.; Kumar, K.R.; Fernandes, S.E.; Michael, G.S.; Patwardhan, S.K.

    : CLIMATE CHANGE AND INDIA CURRE NT SCIENCE, VOL. 90, NO. 3, 10 FEBRUARY 2006 *For correspondence. (e - mail: unni@darya.nio.org ) Sea level changes along the Indian coast: Observ a tions and projections A. S. Unnikrishnan 1, *, K. Rupa Kumar... with the occu r rence of tropical cyclones in the Bay of Bengal and associated storm surges in a future climate scenario. Projections for the future are needed for decision making by planners and policy makers. Future pr o jecti ons are made for different...

  5. Modeling of sediment transport along Mangalore coast using mike 21

    Digital Repository Service at National Institute of Oceanography (India)

    Babu, K.S.; Dwarakish, G.S.; Jayakumar, S.

    in the coastal system. However, large gaps remain in our knowledge of sediment transport processes, and a continuing need exists for the development of reliable, well- validated, practical modeling systems. To this end the coastal processes ofManga10re Coast..., Thiruvananthapuram, India, Vol. 1,578-585. [3] Danish Hydraulic Institute (2000), "MIKE 21 User Guide and manual". [4] Davies A.G., Van Rijn L.e., Damgaard I.S., Van de Graff 1. and Ribberink I.S. (2002), "Intercomparison of Research and Practical Sand Transport...

  6. State of the Arctic Coast 2010: Scientific Review and Outlook

    Science.gov (United States)

    Rachold, V.; Forbes, D. L.; Kremer, H.; Lantuit, H.

    2010-12-01

    The coast is a key interface in the Arctic environment. It is a locus of human activity, a rich band of biodiversity, critical habitat, and high productivity, and among the most dynamic components of the circumpolar landscape. The Arctic coastal interface is a sensitive and important zone of interaction between land and sea, a region that provides essential ecosystem services and supports indigenous human lifestyles; a zone of expanding infrastructure investment and growing security concerns; and an area in which climate warming is expected to trigger landscape instability, rapid responses to change, and increased hazard exposure. Starting with a collaborative workshop in October 2007, the International Arctic Science Committee (IASC), the Land-Ocean Interactions in the Coastal Zone (LOICZ) Project and the International Permafrost Association (IPA) decided to jointly initiate an assessment of the state of the Arctic coast. The goal of this report is to draw on initial findings regarding climate change and human dimensions for the Arctic as a whole provided by the Arctic Climate Impact Assessment (ACIA) and Arctic Human Development Report (AHDR) to develop a comprehensive picture of status and current and anticipated change in the most sensitive Arctic coastal areas. Underlying is the concept of a social ecological system perspective that explores the implications of change for the interaction of humans with nature. The report is aimed to be a first step towards a continuously updated coastal assessment and to identify key issues seeking future scientific concern in an international Earth system research agenda. The report titled “State of the Arctic Coast 2010: Scientific Review and Outlook” is the outcome of this collaborative effort. It is organized in three parts: the first provides an assessment of the state of Arctic coastal systems under three broad disciplinary themes - physical systems, ecological systems, and human concerns in the coastal zone; the

  7. Groundwater quality in the Northern Coast Ranges Basins, California

    Science.gov (United States)

    Mathany, Timothy M.; Belitz, Kenneth

    2015-01-01

    The Northern Coast Ranges (NOCO) study unit is 633 square miles and consists of 35 groundwater basins and subbasins (California Department of Water Resources, 2003; Mathany and Belitz, 2015). These basins and subbasins were grouped into two study areas based primarily on locality. The groundwater basins and subbasins located inland, not adjacent to the Pacific Ocean, were aggregated into the Interior Basins (NOCO-IN) study area. The groundwater basins and subbasins adjacent to the Pacific Ocean were aggregated into the Coastal Basins (NOCO-CO) study area (Mathany and others, 2011).

  8. Field Guide to Marine Ecology of Kenyan Coast.

    OpenAIRE

    2000-01-01

    This guide introduces you to a model of Kenyan coast: from sandy shore across a lagoon of shallow water with sea grass and coral garden, out to the flinging reef where the waves break and the coral rises like a wall from the depths of the ocean. The beach and lagoon are in a marine park where shells, plants, fish and other marine life is protected. In the marine ecosystem here there are 6 habitats, which have their own plants and animals that adapted to the particular environment.

  9. Astronaut Ronald Evans photographed during transearth coast EVA

    Science.gov (United States)

    1972-01-01

    Astronaut Ronald E. Evans is photographed performing extravehicular activity (EVA) during the Apollo 17 spacecraft's transearth coast. During his EVA Command Module pilot Evans retrieved film cassettes from the Lunar Sounder, Mapping Camera, and Panoramic Camera. The total time for the transearth EVA was one hour seven minutes 19 seconds, starting at ground elapsed time of 257:25 (2:28 p.m.) amd ending at ground elapsed time of 258:42 (3:35 p.m.) on Sunday, December 17, 1972.

  10. Pollution Levels in Fog at the Chilean Coast

    Science.gov (United States)

    Sträter, E.; Klemm, O.; Westbeld, A.

    2010-07-01

    During July and August 2008 fog water was collected for chemical analysis in Patache, at the coast of northern Chile, 60 km south of Iquique (20°49’S, 70°09’W). Advective fog events occur regularly at the cliff in the coastal range at about 800 m above MSL. People collect these types of fog water at some places along the coast with Large Fog Collectors (LFC) for domestic use and for watering field crops. So far, no chemical analysis of fog water was performed in Patache. Pure fogwater samples (38 samples from 8 fog events) were taken by using a passive Scientific Cylindrical Fog Collector. Major ions and trace metals were quantified. The analyses indicate very high ionic concentrations (mean 3500 µeq/l) and very low pH values (mean 3.3). The mean H+-concentration represents 16 % of the total ionic equivalent concentration. Sulfate is the anion exhibiting the highest concentrations. A mean value of 880 µeq/l was found, which accounts for 24 % of the total mean concentration. In contrast to sulfate, nitrate shows only a low percentage of 8.1 %. Further major ions are sodium (20%) and chloride (19 %), which are typical seasalt ions in coastal fog. High correlations between the measured ions suggest a causal link between concentration in the fog samples and the liquid water content (LWC) of the cloud. The higher the liquid water content the lower are the ionic concentrations. Enrichment factors with sodium as reference ion were calculated to identify potential emission sources contributing to the observed pollutant levels. We found that K+, Na+, Mg2+ and Cl- mainly result from seaspray. Sulfate, however, is enriched by a factor of 13. The measured trace elements are highly enriched by factors up to hundreds of thousands (Zn: 50, Ni: 1800, As: 2400, Cd: 3900, Fe: 100000, Cu: 96000, Pb: 250000). A cluster analysis supports the conclusion that sulfate and the trace elements originate from anthropogenic activities. The sulfate cannot primarily originate from

  11. Bioecology of tulip trees at the Ajara Black Sea coast

    Directory of Open Access Journals (Sweden)

    Tamara Tskhoidze

    2013-04-01

    Full Text Available Tulip trees (Liriodendron tulipifera L. andLiriodendron chinense(Hemsl. Sarg. grow well along the Batumi coastline, develop, bloom, produce fruit, give natural revival. There they already have blooming and fruiting self-seeds. Chinese tulip poplar sometimes reaches here bigger sizes than in natural habitat. It resists winter temperatures very well. Both species can be jointly used along the Caucasian Black Sea coast as ornamental trees because there are the most favorable conditions for their vegetation. Due the great resistance American tulip trees can grow along the coastline as well as inland of Ajara.

  12. On the occurrence of nuclei in mature sieve elements.

    Science.gov (United States)

    Event, R F; Davis, J D; Tucker, C M; Alfieri, F J

    1970-12-01

    The secondary phloem of 3 species of the Taxodiaceae and 13 species of woody dicotyledons was examined for the occurrence of nuclei in mature sieve elements. Nuclei were found in all mature sieve cells of Metasequoia glyptostroboides, Sequoia sempervirens and Taxodium distichum, and in some mature sieve-tube members in 12 of the 13 species of woody dicotyledons. Except for nuclei of sieve cells undergoing cessation of function, the nuclei in mature sieve cells of M. glyptostroboides, S. sempervirens and T. distichum were normal in appearance. The occurrence and morphology of nuclei in mature sieve-tube members of the woody dicotyledons were quite variable. Only 3 species, Robinia pseudoacacia, Ulmus americana and Vitis riparia, contained some mature sieve elements with apparently normal nuclei.

  13. Forest restoration at Redwood National Park: exploring prescribed fire alternatives to second-growth management: a case study

    Science.gov (United States)

    Engber, Eamon; Teraoka, Jason; van Mantgem, Phillip J.

    2017-01-01

    Almost half of Redwood National Park is comprised of second-growth forests characterized by high stand density, deficient redwood composition, and low understory biodiversity. Typical structure of young redwood stands impedes the recovery of old-growth conditions, such as dominance of redwood (Sequoia sempervirens (D. Don) Endl.), distinct canopy layers and diverse understory vegetation. Young forests are commonly comprised of dense, even-aged Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and redwood stump sprouts, with simple canopy structure and little understory development. Moreover, many of these young stands are believed to be vulnerable to disturbance in the form of drought, disease and fire. Silvicultural practices are increasingly being employed by conservation agencies to restore degraded forests throughout the coast redwood range; however, prescribed fire treatments are less common and potentially under-utilized as a restoration tool. We present an early synthesis from three separate management-scale prescribed fire projects at Redwood National Park spanning 1to 7 years post-treatment. Low intensity prescribed fire had minimal effect on overstory structure, with some mortality observed in trees smaller than 30 cm diameter. Moderate to high intensity fire may be required to reduce densities of larger Douglas-fir, the primary competitor of redwood in the Park’s second growth forests. Fine woody surface fuels fully recovered by 7 years post-burn, while recruitment of larger surface fuels was quite variable. Managers of coastal redwood ecosystems will benefit by having a variety of tools at their disposal for forest restoration and management.

  14. Redwoods, restoration, and implications for carbon budgets

    Science.gov (United States)

    Madej, Mary Ann

    2010-01-01

    The coast redwoods (Sequoia sempervirens) of California have several unique characteristics that influence interactions between vegetation and geomorphic processes. Case studies, using a combination of in-channel wood surveys and an air photo inventory of landslides, illustrate current conditions in a redwood-dominated watershed undergoing restoration work, and the influence of wood loading and landslides on the carbon budget. Redwood trees have extremely large biomass (trunk wood volumes of 700 to 1000 m3) and are very decay-resistant; consequently, they have a large and persistent influence on in-channel wood loading. Large wood surveys indicate high wood loading in streams in uncut forests (0.3-0.5 m3/m2 of channel), but also show that high wood loading can persist in logged basin with unlogged riparian buffers because of the slow decay of fallen redwoods. Through a watershed restoration program, Redwood National Park increases in-channel wood loading in low-order streams, but the effectiveness of this technique has not yet been tested by a large flood. Another unique characteristic of redwood is its ability to resprout from basal burls after cutting, so that root strength may not decline as sharply following logging as in other types of forests. An air photo inventory of landslides following a large storm in 1997 indicated: 1) that in the Redwood Creek watershed the volume of material displaced by landslides in harvested areas was not related to the time elapsed since logging, suggesting that the loss of root strength was not a decisive factor in landslide initiation, 2) landslide production on decommissioned logging roads was half that of untreated roads, and 3) landslides removed an estimated 28 Mg of organic carbon/km2 from hillslopes. The carbon budget of a redwood-dominated catchment is dominated by the vegetative component, but is also influenced by the extent of mass movement, erosion control work, and in-channel storage of wood.

  15. A radioactivity study of mollusca distributed along the Syrian coast

    International Nuclear Information System (INIS)

    Al-Masri, M. S.; Ammar, I.; Mamish, S.; Haleem, M. A.

    2008-01-01

    In the present work, radioactivity has been studied in several Mollusca collected from four selected sites (Al Basset, Latakia, Banise and Tartous) along the Syrian coast. Concentration Factors (CF) of radionuclides (Lead-210, Polonium-210, Uranium Isotopes, Potassium-40 and Cesium-137) in mussels and shells of Mollusca have been calculated in order to determine the species that could be used as Bioindicators for these isotopes. Statistical analysis of the results using the box plot method showed that the mussels of Spondylus gaederopus spinosus and Chama pacifica can be used as biomonitor for the studied radionuclides in addition to shell of Strombus decorus persicus and Spondylus gaederopus spinosus. While the mussels of Brachidonta variabilis and Spondylus gaederopus spinosus have shown good selectivity for Cd and Pb and Pinctada radiate for Zn and Thais haemostoma for Cu. In addition, the migrant Mullusca from the Red Sea, Strombus decoruspersicus, can be used as biomonitor for lead, Zn and Cu, Cd, while the shell of Thais haemostoma for lead. However, the importance of the results of the present study that are considered as a baseline data for radionuclides in Mullusca distributed along the Syria coast and it is the only study in the eastern Mediterranean basin, that defined the Mollusca species which could be use as biomonitors for radionuclides. (Authors)

  16. Tsunamis induced by submarine slumpings off the coast of Israel

    International Nuclear Information System (INIS)

    Striem, H.; Miloh, T.

    1975-07-01

    The historical description of tsunamis or seismic sea waves at the coast of Israel is related. It is found that such an event was followed more often by a sea recession than by a shore flooding. A quantitative evaluation based on data of actual submarine scars, which may have been caused by slumpings on the continental slope, is carried out. It was found that the slumping of a mass 6 km long, 2 km wide and about 50 m deep would cause the formation of a shock-induced solitary wave of about 10 m in height at the edge of the continental slope. The accompanying draw-down of the sea level at the coast would last about 1/2 - 1.5 hours and lay the sea floor bare for a distance of about 1/2 - 1.5 km in agreement with some of the historical descriptions. Though possibly occurring only once or twice in a millenium, earthquake-induced slumpings may constitute a danger to nuclear power plants. (B.G.)

  17. A radioactivity study of mollusca distributed along the Syrian coast

    International Nuclear Information System (INIS)

    Al-Masri, M. S.; Ammar, I.; Mamish, S.; Haleem, M. A.

    2006-10-01

    In the present work, radioactivity has been studied in several Mollusca collected from four selected sites(Al Basset, Lattakia, Banise and Tartous) along the Syrian coast. Concentration Factors (CF) of radionuclides (Lead-210, Polonium-210, Uranium Isotopes, Potassium-40 and Cesium-137) in mussels and shells of Mollusca have been calculated in order to determine the species that could be used as Bioindicators for these isotopes. Statistical analysis of the results using the box plot method showed that the mussels of Spondylus spinosus and Chama pacifica can be used as biomonitor for the studied radionuclides in addition to shell of Strombus persicus and Spondylus spinosus. While the mussels of Brachidonta variabilis and Spondylus spinosus have shown good selectivity for Cd and Pb and Pinctada radiate for Zn and Thais haemostoma for Cu. In addition, the migrant Mullusca from the Red Sea, Strombus persicus, can be used as biomonitor for lead, Zn and Cu, Cd, while the shell of Thais haemostoma for lead. However, the importance of the results of the present study that are considered as a baseline data for radionuclides in Mullusca distributed along the Syria coast and it is the only study in the eastern Mediterranean basin, that defined the Mollusca species which could be use as biomonitors for radionuclides. (Authors)

  18. West Coast Swing Dancing as a Driven Harmonic Oscillator Model

    Science.gov (United States)

    Ferrara, Davon; Holzer, Marie; Kyere, Shirley

    The study of physics in sports not only provides valuable insight for improved athletic performance and injury prevention, but offers undergraduate students an opportunity to engage in both short- and long-term research efforts. In this project, conducted by two non-physics majors, we hypothesized that a driven harmonic oscillator model can be used to better understand the interaction between two west coast swing dancers since the stiffness of the physical connection between dance partners is a known factor in the dynamics of the dance. The hypothesis was tested by video analysis of two dancers performing a west coast swing basic, the sugar push, while changing the stiffness of the physical connection. The difference in stiffness of the connection from the ideal was estimated by the leader; the position with time data from the video was used to measure changes in the amplitude and phase difference between the leader and follower. While several aspects of our results agree with the proposed model, some key characteristics do not, possibly due to the follower relying on visual leads. Corresponding author and principal investigator.

  19. Hunger amidst plenty along the coast of Pará

    Directory of Open Access Journals (Sweden)

    Ivete Nascimento

    2006-08-01

    Full Text Available In this work one analyzes some referring questions to the new significações of the temporality constructed socially enters the artisan fishing of the coast, in the city of Maracanã, using as boundary-maker the concepts the concepts of abundance and famitura the one that they send themselves to the speech in way of life of the past and the gift. It will see as the typical way of life of the rescued past of the memory of old and the meaning of the abundance in the time of the fishing-farmer, the counterpoint with the concept of famitura of the fishing-exclusive of the gift, where the loss surpasses the scope of the strict survival reaching the proper way of life with the weakness of solidarity. This analysis will be given mecanicamente in the conceptual field of the time measured for the tasks and of the time chronometered for the clock. The intensive field work ocurred on Fortaleza of the Mocooca community incorporating data gotten a long the author's experience in the fish artisan thematic of the Pará coast.

  20. Possible occultation by Pluto from US East Coast

    Science.gov (United States)

    Waagen, Elizabeth O.

    2012-06-01

    We have been asked to help disseminate the news of a possible occultation by Pluto visible to observers on the US East coast. Although the AAVSO does not ordinarily issue announcements of upcoming occultations, in this case the object is Pluto and the NASA New Horizons mission (http://www.nasa.gov/mission_pages/newhorizons/main/index.html) will be visiting Pluto in 2015. The information below has been supplied by Dr. Leslie Young (Southwest Research Institute), who is coordinating this observing campaign on Pluto. Dr. Young is also Deputy Project Scientist for the New Horizons mission. ALERT: Possible Pluto occultation Wednesday night (2012/06/14 03:28 UT) from US East coast. CONTACT: Leslie Young (layoung@boulder.swri.edu; work: 303-546-6057; skype: drpluto). Also see our planning pages in progress at http://wiki.boulder.swri.edu/mediawiki/index.php/2012-06-14_Pluto_occultation. Pluto's thin, nitrogen atmosphere is in vapor-pressure equilibrium with the surface ice, and changes seasonally. We've seen it double since 1988, and now we measure its pressure once or twice a year. The technique we use is stellar occultation, when a star passes behind Pluto's atmosphere. The atmosphere defocuses the starlight. By the timing of the fading of the star, we measure the pressure and temperature in Pluto's atmosphere at ~10 km resolution. MORE INFORMATION: See http://wiki.boulder.swri.edu/mediawiki/index.php/2012-06-14_Pluto_occultation.

  1. Tufa stromatolite ecosystems on the South African south coast

    Directory of Open Access Journals (Sweden)

    Renzo Perissinotto

    2014-09-01

    Full Text Available Following the first description of living marine stromatolites along the South African east coast, new investigations along the south coast have revealed the occurrence of extensive fields of actively calcifying stromatolites. These stromatolites have been recorded at regular distances along a 200-km stretch of coastline, from Cape Recife in the east to the Storms River mouth in the west, with the highest density found between Schoenmakerskop and the Maitland River mouth. All active stromatolites are associated with freshwater seepage streams flowing from the dune cordon, which form rimstone dams and other accretions capable of retaining water in the supratidal platform. Resulting pools can reach a maximum depth of about 1 m and constitute a unique ecosystem in which freshwater and marine organisms alternate their dominance in response to vertical mixing and the balance between freshwater versus marine inflow. Although the factors controlling stromatolite growth are yet to be determined, nitrogen appears to be supplied mainly via the dune seeps. The epibenthic algal community within stromatolite pools is generally co-dominated by cyanobacteria and chlorophytes, with minimal diatom contribution.

  2. An undercurrent off the east coast of Sri Lanka

    Science.gov (United States)

    Anutaliya, Arachaporn; Send, Uwe; McClean, Julie L.; Sprintall, Janet; Rainville, Luc; Lee, Craig M.; Priyantha Jinadasa, S. U.; Wallcraft, Alan J.; Metzger, E. Joseph

    2017-12-01

    The existence of a seasonally varying undercurrent along 8° N off the east coast of Sri Lanka is inferred from shipboard hydrography, Argo floats, glider measurements, and two ocean general circulation model simulations. Together, they reveal an undercurrent below 100-200 m flowing in the opposite direction to the surface current, which is most pronounced during boreal spring and summer and switches direction between these two seasons. The volume transport of the undercurrent (200-1000 m layer) can be more than 10 Sv in either direction, exceeding the transport of 1-6 Sv carried by the surface current (0-200 m layer). The undercurrent transports relatively fresher water southward during spring, while it advects more saline water northward along the east coast of Sri Lanka during summer. Although the undercurrent is potentially a pathway of salt exchange between the Arabian Sea and the Bay of Bengal, the observations and the ocean general circulation models suggest that the salinity contrast between seasons and between the boundary current and interior is less than 0.09 in the subsurface layer, suggesting a small salt transport by the undercurrent of less than 4 % of the salinity deficit in the Bay of Bengal.

  3. Oil spill contingency planning in the Ivory coast

    International Nuclear Information System (INIS)

    Bender, K.; Jensen, S.K.; Ostergaerd, J.; Nogbou, P.

    1993-01-01

    The administrative center in charge of handling oil spill pollution situations on the Ivory Coast, West Africa, is named Centre Ivoirien Antipollution (CIAPOL). Its organizational structure has been reshuffled recently. CIAPOL now has three divisions: a laboratory division, a division for cleaning up oil and chemical pollution at sea, and an administrative division. The risk for oil pollution is known: within the past ten years five spills have been reported. All of these have been connected to operations relating to the refinery in Abidjan. More than 2,000 ships call at the port of Abidjan every year. Minor oil slicks are found almost permanently in the harbor and the lagoons around the harbor. Lumps of tar are rather common on the beaches all along the country's coast. This paper focuses on the background investigation in sensitive areas and risk analysis that led to a revision of the oil spill contingency plan, Plan Pollumar, and the recent purchase of oil spill cleanup equipment. The creation of a regional oil pollution response center at CIAPOL for all of the countries in West Africa, is proposed

  4. Implementing Strategy in a Budget: A Model of the Coast Guard Reserve

    OpenAIRE

    Bromund, Carl Douglas

    1990-01-01

    Approved for public release; distribution is unlimited. This thesis discusses the managment strategy of the Coast Guard Reserve; it examines the formulation and implmentation of strateqy. A model to develop and implement strategy is proposed, which defines the role of the budget in this strategic management process. The recent strategy of the Coast Guard Reserve is analyzed using this model.. This analysis seems to indicate that the Coast Guard Reserve had no explicit strate...

  5. A traditional boats and navigational history of Odisha, East coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Tripati, S.

    Environ., vol.40(2); 2015; 80-93 A study of Traditional Boats and Navigational History of Odisha, East coast of India Sila Tripati Marine Archaeology Centre CSIR- National Institute of Oceanography Dona Paula, Goa 403 004... parts of the east coast of India and navigational technology. Keywords: Traditional boats, Navigation, Maritime trade, Odisha, East coast of India 2    Introduction The history of boatbuilding is as old as the relationship between man...

  6. A new distributional record for the sea cucumber Holothuria (Semperothuria) cinerascens (Brandt) from Goa coast

    Digital Repository Service at National Institute of Oceanography (India)

    Shirwaikar, P.; Parulekar, A.H.

    Occurrence of sea cucumber, Holothuria (Semperothuria) cinerascens from intertidal region of Anjuna (Goa) along central west coast of India is reported. Notes on morphological characteristics are given...

  7. Changes in erosional and depositional processes with time and management of Goa Coast, central west coast of India

    Science.gov (United States)

    Nayak, Ganapati; D'Souza, Joseph

    2010-05-01

    Coastal and estuarine environments, world over are facing immense impact due to both natural and anthropogenic processes. The natural processes include climatic changes, rise in sea level, cyclone, flood, tsunamis, coastal erosion, salinity ingress and siltation. Likewise, anthropogenic pressures include population expansion, ocean traffic, dredging, resource exploitation, pollution, unplanned urbanization and intensive industrialization. Due to these impacts the fragile coastal ecosystem and its entities, like sub ecosystems, resources, morphological units are undergoing unprecedented degradation, rendering these coastal regions vulnerable, impinging risk to human population, livestock, properties, as also, devastation of resourceful lands. This accelerates economic fatalities and irreversible obliteration to the ecosystems. Evidences on the global concern towards this issue have been well established. The countries world over, including India, pledged consensus towards the protection of the fragile coastal ecosystems through UNCED, Agenda-21. India, on 19th February 1991, has designated specified corridors along the landward side of the coastline as "Coastal Regulatory Zones" (CRZ), through appropriate policy and law. In context with the CRZ notification, scientific database at local and site-specific areas, developed. Synergy of ecosystems, landscape and resources with demographic, tourism data, vis-à-vis, economic corridors/sectors aided the paradigms and criterion for local and site specific prescriptions for Goa Coast. The Goa coast is a part of central west coast of India and is characterized by pocket beaches flanked by rocky cliffs, estuaries, bays, and at some places mangroves. Beaches in southern Goa are long and linear in nature with sand dunes. The Mandovi and Zuari estuarine system in Goa is the largest in this part of the coast. Mud flats, swampy marshes and wetlands are found mainly along estuaries and creeks. The beaches of Goa are stable beaches

  8. Headland sediment bypassing and beach rotation in a rocky coast: an example at the western Portuguese coast

    Science.gov (United States)

    Ribeiro, Mónica; Taborda, Rui; Lira, Cristina; Bizarro, Aurora; Oliveira, Anabela

    2014-05-01

    Headland sediment bypassing plays a major role in definition of coastal sedimentary budget and consequently in coastal management. This process is particularity important at headland-bay beaches on rocky coasts. However, headland-bay beach research is usually focused on the beach rotation since these beaches are generally regarded as closed systems. The sediment bypassing mechanisms have been extensively studied in the context of artificial structures (e.g. groins and jetties) but studies of natural headland sediment bypassing are scarce and usually applied to decadal time scales. This work aims to contribute to the understanding of headland sediment bypassing processes in non-artificial environments, taking as a case study a natural coastal stretch at the Portuguese west coast. The study is supported on the analysis of planform beach changes using Landsat satellite images (with an acquisition frequency of 16 days) complemented with field surveys with DGPS-RTK and ground-based photographic monitoring. The study area can be described as a cliffed rocky coast that accommodates a series of headland-bay beaches with different geometries: some are encased in the dependence of fluvial streams, while others correspond to a narrow and elongated thin sand strip that covers a rocky shore platform. This coast is generally characterized by a weak, but active, sediment supply and high levels of wave energy due to the exposure to the swells generated in the North Atlantic. The long-term stability of the beaches in conjunction with active sediment supply along the study area (from streams and cliff erosion) and a sink at the downdrift end of this coastal stretch (an active dune system) support the existence of headland sediment bypassing. The analysis of planform beach changes show a coherent signal in time but with a range that depends on the orientation of the stretch where each beach is included. In general, beaches displays a clockwise rotation during summer related to the NW

  9. Measurements of Active Tectonic Deformation on the Guerrero Coast, Mexico

    Science.gov (United States)

    Ramirez, T.; Cundy, A.; Carranza-Edwards, A.; Morales, E.; Kostoglodov, V.; Urrutia-Fucugauchi, J.

    2004-12-01

    The study of tectonic deformation rates using displaced shoreline features is relatively well-established, and has provided much useful information on seismic hazard. Such studies have frequently been complemented by analysis of the coastal sedimentary record, where past marine to terrestrial environmental changes (and vice versa) may be recorded by clear changes in stratigraphy. Studies of this type are particularly valuable for tectonically-active areas where the preservation of former shoreline features is poor, or where long-term subsidence has resulted in their erosion, drowning or burial. The specific objective of this study is to derive rates of tectonic deformation from geomorphic and stratigraphic studies of the Guerrero coastal area, and to examine the feasibility of this stratigraphic approach in the coastal lagoons of the Mexican Pacific coast, in the Guerrero gap. The Guerrero gap coastal area, where a major earthquake is expected to occur, parallels the Cocos plate subduction zone. Here convergence rates vary from 5.2 cm/yr to 5.8 cm/yr. The Guerrero gap has experienced several historical earthquakes, notably the 1911 (7.8 Ms). However, no large magnitude events since the 1911 earthquake and only a few Ms~6 events have occurred near the Guerrero gap edges. It is expected that a major interplate earthquake of estimated magnitude Mw=8.1 to 8.4 has a high probability to occur. Landforms within the Guerrero gap indicate that the coast is subsiding. A series of key indicators such as elongated islands reminiscent of ancient barriers, submerged barriers island, extensive marshy environments, increased depths in the lagoons, and submerged anthropogenic features (shell mounds), among others, suggest active tectonic subsidence of the coast. In contrast, the adjacent northwest area off the Guerrero gap exhibits landforms characteristic of tectonic uplift (marine terraces and uplifted beach ridges), indicating a different seismo-tectonic regime northwest of the

  10. A coastal hazards data base for the US Gulf Coast

    Energy Technology Data Exchange (ETDEWEB)

    Daniels, R.C. [ed.] [Oak Ridge National Lab., TN (United States). Carbon Dioxide Information Analysis Center]|[Univ. of Tennessee, Knoxville, TN (United States). Energy, Environment and Resources Center; Gornitz, V.M. [National Aeronautics and Space Administration, New York, NY (United States). Goddard Inst. for Space Studies; White, T.W. [Oak Ridge National Lab., TN (United States). Carbon Dioxide Information Analysis Center

    1994-06-01

    This document describes the contents of a digital data base that may be used to identify coastlines along the US Gulf Coast at risk to sea-level rise. The data base integrates point, line, and polygon data for the US Gulf Coast into 0.25{degree} latitude by 0.25{degree} longitude grid cells and into 1:2,000,000 digitized line segments that can be used by raster or vector geographic information systems (GIS) as well as by non-GIS data base systems. Each coastal grid cell and line segment contains data on elevation, geology, geomorphology, sea-level trends, shoreline displacement (erosion/accretion), tidal ranges, and wave heights. To allow for the identification of coastlines at risk from sea-level rise, 7 of the 22 original data variables in this data base were classified by vulnerability and used to create 7 relative risk variables. These relative risk variables range in value from 1 to 5 and may be used to calculate a coastal vulnerability index for each grid cell and/or line segment. The data for these 29 variables (i.e., the 22 original variables and 7 risk variables) have been placed into the following data formats: (1) Gridded polygon data for the 22 original data variables. Data include elevation, geology, geomorphology, sea-level trends, shoreline displacement (erosion/accretion), tidal ranges, and wave heights. (2) Gridded polygon data for the seven classified risk variables. The risk variables are classified versions of: mean coastal elevation, geology, geomorphology, local subsidence trend, mean shoreline displacement, maximum tidal range, and maximum significant wave height. (3) 1:2,000,000 line segment data containing the 29 data variables (the 22 original data variables and the seven classified risk variables). (4) Supplemental point data for the stations used in calculating the sea-level trend and tidal range data sets. (5) Supplemental line segment data containing a 1:2,000,000 digitized coastline of the US Gulf Coast as defined by this document.

  11. Skin tests of pollen grains of taxodiaceae and cupressaceae in children with bronchial asthma.

    Science.gov (United States)

    Midoro-Horiuti, T; Nouno, S; Seino, Y

    1992-10-01

    Atmospheric cedar pollen in the southern region of Okayama Prefecture (situated in south-western Japan) has been counted since 1988. Pollen of different species of the Taxodiaceae family (Cryptomeria japonica, Sequoia sempervirens and Metasequoia glyptostroboides) and Japanese juniper (Juniperus rigida) in the Cupressaceae family, which are propagated mainly in the southern region of Okayama Prefecture, were found among the atmospheric pollen. Scratch tests using the pollen extract from Taxodiaceae and Cupressaceae were performed on children with bronchial asthma. Forty (25%) and 30 (18.8%) of the 160 patients reacted positively to an allergen extract from the pollen grains of Japanese cedar (Cryptomeria japonica) and Japanese juniper, respectively.

  12. Phocine Distemper Virus in Seals, East Coast, United States, 2006

    Science.gov (United States)

    Earle, J.A. Philip; Melia, Mary M.; Doherty, Nadine V.; Nielsen, Ole

    2011-01-01

    In 2006 and 2007, elevated numbers of deaths among seals, constituting an unusual mortality event, occurred off the coasts of Maine and Massachusetts, United States. We isolated a virus from seal tissue and confirmed it as phocine distemper virus (PDV). We compared the viral hemagglutinin, phosphoprotein, and fusion (F) and matrix (M) protein gene sequences with those of viruses from the 1988 and 2002 PDV epizootics. The virus showed highest similarity with a PDV 1988 Netherlands virus, which raises the possibility that the 2006 isolate from the United States might have emerged independently from 2002 PDVs and that multiple lineages of PDV might be circulating among enzootically infected North American seals. Evidence from comparison of sequences derived from different tissues suggested that mutations in the F and M genes occur in brain tissue that are not present in lung, liver, or blood, which suggests virus persistence in the central nervous system. PMID:21291591

  13. Geohydrolic studies of Gulf Coast interior salt domes

    International Nuclear Information System (INIS)

    Smith, C.G. Jr.

    1977-01-01

    Disposal of high-level radioactive wastes in Gulf Coast salt domes requires that the cavities be free from groundwater dissolution for 250,000 years. Salinity variations of groundwater near selected domes were investigated. Saline groundwater anomalies (saline plumes) in aquifers pierced or uplifted by the dome may be the result of salt solution by groundwater. In the Northeast Texas salt dome basin electric logs of oil and gas wells have been used to estimate groundwater salinities in aquifers near selected domes. Thus far, the analyses have revealed saline groundwater anomalies around 4 of the 9 domes studied. Estimates of the rate of salt dissolution from domes associated with saline groundwater plumes indicate that less than 30 meters of salt will be removed from the upper surfaces of the dome in 250,000 years. Thus, these preliminary studies show that even apparently unstable domes may be sufficiently stable to serve as waste disposal sites. 6 figures

  14. Littoral cells and harbor dredging along the California coast

    Science.gov (United States)

    Griggs, Gary B.

    1987-02-01

    Beach compartments or littoral cells form the framework for our understanding of the sources, transport, and sinks of sand in the nearshore zone. In general, along the California coast, beach sand is derived from rivers or clifferosion, moves alongshore under the influence of the prevailing waver conditions, and ultimately is lost either to a submarine canyon or a dune field. Marinas or harbors built either between or at the upcoast ends of beach compartments have been relatively maintenance-free, because of a lack of significant littoral drift at these locations. On the other hand, those harbors built in the middle reaches or at the downcoast ends of littoral cells have had expensive annual dredging problems, because of the interruption of large volumes of littoral drift. Although engineers have labored for years on various breakwater, jetty, or entrance channel configurations, the actual design utilized is of secondary importance. The critical factors are harbor location within a littoral cell and annual litoral drift volume.

  15. Wind speed forecasting in the South Coast of Oaxaca, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Cadenas, Erasmo [Facultad de Ingenieria Mecanica, Universidad Michoacana de San Nicolas de Hidalgo, Santiago Tapia No. 403, Centro (Mexico); Rivera, Wilfrido [Centro de Investigacion en Energia of the Universidad Nacional Autonoma de Mexico (UNAM), Apartado Postal 34, Temixco 62580, Morelos (Mexico)

    2007-10-15

    Comparison of two techniques for wind speed forecasting in the South Coast of the state of Oaxaca, Mexico is presented in this paper. The Autoregressive Integrated Moving Average (ARIMA) and the Artificial Neural Networks (ANN) methods are applied to a time series conformed by 7 years of wind speed measurements. Six years were used in the formulation of the models and the last year was used to validate and compare the effectiveness of the generated prediction by the techniques mentioned above. Seasonal ARIMA models present a better sensitivity to the adjustment and prediction of the wind speed for this case in particular. Nevertheless, it was shown both developed models can be used to predict in a reasonable way, the monthly electricity production of the wind power stations in La Venta, Oaxaca, Mexico to support the operators of the Electric Utility Control Centre. (author)

  16. A coastal hazards data base for the US East Coast

    Energy Technology Data Exchange (ETDEWEB)

    Gornitz, V.M. [National Aeronautics and Space Administration, New York, NY (United States). Goddard Inst. for Space Studies; White, T.W. [Oak Ridge National Lab., TN (United States); Daniels, R.C. [Energy, Environment and Resources Center, University of Tennessee, Knoxville, TN (United States)

    1992-08-01

    This document describes the contents of a digital data base that may be used by raster or vector geographic information systems (GIS) and non-GIS data bases to assess the risk of coastlines to erosion or sea level rise. The data base integrates point, line, and polygon data for the US East Coast into 0.250 latitude {times} 0.250 longitude grid cells. Each coastal grid cell contains data on geology, geomorpholog,elevation, wave heights, tidal ranges, shoreline displacement (erosion), and sea-level trends. These data are available as a Numeric Data Package (NDP), from the Carbon Dioxide Information Analysis Center, consisting of this document and a set of computerized data files. The documentation contains information on the methods used in calculating each variable, detailed descriptions of file contents and formats, and a discussion of the sources, restrictions, and limitations of the data. The data files are available on magnetic tape, on floppy diskettes, or through INTERNET.

  17. A coastal hazards data base for the US East Coast

    Energy Technology Data Exchange (ETDEWEB)

    Gornitz, V.M. (National Aeronautics and Space Administration, New York, NY (United States). Goddard Inst. for Space Studies); White, T.W. (Oak Ridge National Lab., TN (United States)); Daniels, R.C. (Energy, Environment and Resources Center, University of Tennessee, Knoxville, TN (United States))

    1992-08-01

    This document describes the contents of a digital data base that may be used by raster or vector geographic information systems (GIS) and non-GIS data bases to assess the risk of coastlines to erosion or sea level rise. The data base integrates point, line, and polygon data for the US East Coast into 0.250 latitude [times] 0.250 longitude grid cells. Each coastal grid cell contains data on geology, geomorpholog,elevation, wave heights, tidal ranges, shoreline displacement (erosion), and sea-level trends. These data are available as a Numeric Data Package (NDP), from the Carbon Dioxide Information Analysis Center, consisting of this document and a set of computerized data files. The documentation contains information on the methods used in calculating each variable, detailed descriptions of file contents and formats, and a discussion of the sources, restrictions, and limitations of the data. The data files are available on magnetic tape, on floppy diskettes, or through INTERNET.

  18. First Battleships of the Coast Defense of Russian Emperor Fleet

    Directory of Open Access Journals (Sweden)

    Yuri F. Katorin

    2015-12-01

    Full Text Available In this article it is told about design and building in Russia of the first tower armored ships, are given their characteristics, are described design features, and also basic stages of service in the composition of Baltic fleet, the advantages and disadvantages in the projects are analyzed. The authors come to the conclusion that the first navigation of tower armored vehicles revealed many design flaws. Low-built monitors and two-turret armored boat had very poor seakeeping. However, for advertising purposes the ten monitors in 1865 have been sent to the coast of Sweden. During the operation it was determined the necessity of combining the reliable protection with sufficient seaworthiness. The solution to this problem is reflected in the subsequent types of armored ships – the tower frigates.

  19. The east coast petroleum province: Science and society

    Science.gov (United States)

    Jordan, R.R.

    1999-01-01

    The U.S. Atlantic offshore, especially the mid-Atlantic, was an exciting exploration area from the 1970s into the 1980s. Much pioneering 'frontier' activity in both scientific and policy matters occurred in this area. Although production was not achieved, objective geological evidence indicates that the province does have potential. Major population centers of the mid-Atlantic area demand large amounts of energy and enormous amounts of crude and product are shipped through East Coast waters. Nevertheless, exploration has been shut down by moratoria, environmental concerns, and international pricing. It is suggested that the province will be revisited in the future and that the geologic and environmental information that has been generated at great cost should be preserved for use by the next generation of explorationists and policy-makers.

  20. Corrosion in marine atmospheres. Effect of distance from the coast

    International Nuclear Information System (INIS)

    Chico, B.; Otero, E.; Morcillos, M.; Mariaca, L.

    1998-01-01

    In marine atmospheres the deposition of saline particles on the surface of metals intensifies the metallic corrosion process. However, quantitative information about the effect of atmospheric salinity on metallic corrosion is very scarce. This paper reports the relationship between salinity and metallic corrosion, where a clear linear relation (r=0.97) has been found for a broad interval of salinities (4-500 mg Cl''-/m''2.d), as well as the relationship between salinity (or metallic corrosion) and distance from the coast. A hyperbolic function seems to be established both variables; there is an exponential drop in salinity (or corrosion) as shoreline distance increases tending towards and asymptotic value. The study has been based on information obtained from field research conducted at a marine atmosphere in Tarragona (Spain) and data compiled from the literature. (Author) 14 refs

  1. Reservoirs and petroleum systems of the Gulf Coast

    Science.gov (United States)

    Pitman, Janet K.

    2010-01-01

    This GIS product was designed to provide a quick look at the ages and products (oil or gas) of major reservoir intervals with respect to the different petroleum systems that have been identified in the Gulf Coast Region. The three major petroleum source-rock systems are the Tertiary (Paleocene-Eocene) Wilcox Formation, Cretaceous (Turonian) Eagle Ford Formation, and Jurassic (Oxfordian) Smackover Formation. The ages of the reservoir units extend from Jurassic to Pleistocene. By combining various GIS layers, the user can gain insights into the maximum extent of each petroleum system and the pathways for petroleum migration from the source rocks to traps. Interpretations based on these data should improve development of exploration models for this petroleum-rich province.

  2. On the evolution of a holocene barrier coast

    DEFF Research Database (Denmark)

    Fruergaard, Mikkel

    in a distinct stratal stacking pattern of each of the investigated coastal barrier systems. We conclude that the overall infilling of the barrier systems over the Holocene was mainly controlled by sea-level rise and sediment supply. However, major storms and tidal channel migration have greatly affected......This thesis investigates the sedimentary evolution of a Holocene barrier coast with special focus on how barrier system stratigraphy is affected by changes in sea-level and sediment supply. Coastal barrier systems comprise about 13% of the world’s coastlines and they are mportant components...... of the stratigraphic record of the Earth. Sea-level rise and sediment supply are the two most important factors controlling barrier system evolution. Detailed depositional reconstructions of a number of barrier systems from the Danish Wadden Sea area have been carried out in order to evaluate the sedimentary effects...

  3. Branchial cymothoids infesting the marine food fishes of Malabar coast.

    Science.gov (United States)

    Panakkool-Thamban, Aneesh; Ameri Kottarathil, Helna; Kappalli, Sudha

    2016-12-01

    Occurrence of cymothoid isopods parasitizing the branchial chamber of marine food fishes along the Malabar coast was investigated. Live and fresh fishes collected from the Ayyikkara fish landing center (Lat. 11°51'N, Long. 75°22'E; Malabar coast, India) were subjected to the thorough observation for the presence of branchial cymothoids for 3 consecutive years (November 2009-November 2012). Among the recovered cymothoids, 11 species were branchial residents belonging to 6 genera; the species include Agarna malayi, Catoessa gruneri, C. boscii, Joryma hilsae, J. brachysoma, J. engraulidis, J. sawayah, Mothocya collettei, M. renardi, Norileca indica and Ryukyua circularis ; highest prevalence being exhibited by two species of Mothocya , ( M. renardi and M. collettei ) parasitizing the belonidaen fishes, Strongylura leiura (92.15 %) and Tylosurus crocodilus crocodilus (87.2 %) respectively. Except Mothocya species, which preferred the branchial floor for infestation, all recovered branchial cymothoids were found attached the inner wall of the operculum. In several instances, the parasites appeared in male-female pairs, one in each branchial cavity. Ovigerous female members of all species of branchial cymothoids except R. circularis showed remarkable bending either towards left or right depending on whether they are located in right or left branchial cavity of their respective host fishes. The deleterious effects of parasitization by all recovered branchial cymothoids include the formation of a pit like depression in the branchial chamber and atrophy of the gill filament; the damage was more pronounced in the gill cavity of parasitized host fishes where the ovigerous female member was accommodated.

  4. Radioactivity of Focus vesiculosus along the Finnish coast in 1987

    International Nuclear Information System (INIS)

    Ilus, E.; Klemola, S.; Sjoeblom, K.-L.; Ikaeheimonen, T.K.

    1988-05-01

    Samples of Fucus vesiculosus were collected along the west and south coast of Finland at 25 stations in June-October 1987. More detailed surveys were conducted in the marine areas surrounding the nuclear power stations at Olkiluoto and Loviisa. The samples were analysed for gamma-emitting radionuclides and partly also for 90 Sr and transuranic elements. From the twelve gamma-emitting radionuclides detected in the Focus samples, 40 K, 106 Ru, 110m Ag, 134 Cs and 137 Cs were found in nearly all samples. 54 Mn and 65 Zn were almost regularly detected in the samples from the Olkiluoto and Loviisa areas and commonly also along the whole coast, whereas 60 Co was rarely found at the coastal stations outside the immediate vicinities of the power stations. The activity concentrations of 137 Cs varied in the Fucus samples from 80 to 670 Bq kg -1 dry weight. The highest values were found in the Loviisa area and in the eastern part of the Gulf of Finland and the lowest in the Archipelago Sea. The values reflect differences in the amounts of local fallout and runoff, but also the transport of radionuclides by river waters and currents in the sea. The results provide evidence of the indicator value of Fucus vesiculosus in the monitoring of radioactive substances, both in the environs of the nuclear power stations and also in studies regarding the dispersion and behaviour of fallout nuclides in the marine environment. Among the great number of samples taken in the Finnish monitoring programme, Fucus was the most sensitive bioindicator of 60 Co and 65 Zn, and thus enabled detection of these radionuclides in the fallout from Chernobyl

  5. Improving the wave forecast in the Catalan Coast

    Science.gov (United States)

    Pallares, Elena; Sanchez-Arcilla, Agustin; Espino, Manuel

    2014-05-01

    This study has been motivated by the limited accuracy of wave models under short-duration, fetch-limited conditions. This applies particularly to the wave period, and can be illustrated by the case of semi-enclosed domains with highly variable wind patterns such as the Catalan coast in the Spanish Mediterranean. The wave model SWAN version 40.91A is used here in three nested grids covering all the North-western Mediterranean Sea with resolution from 9 to 1 km, forced with high resolution wind patterns from BSC (Barcelona Supercomputing Center) for two study periods, the winter 2010 and the spring 2011. The results are validated in eight locations with different types of instrumentation. In order to improve the results, a modification of the whitecapping well-known formulation of Hasselmann (1974) has been considered. The delta coefficient is increased to adapt the dissipation to the growth rates actually observed in the region. This correction introduces a dependence on the squared wave number, improving the prediction of the energy spectra at lower frequencies. However, one may note that an over-prediction will occur for waves with longer fetch and/or duration. The results obtained show a clear improvement of the mean and peak wave periods for the study area, decreasing considerably the negative bias observed previously, while almost no change is observed in wave height due to the proposed modifications. These results can be generalized to the Spanish Mediterranean coast and could be exported to similar environments, characterized by young/moderate sea wave conditions due to limited fetch and transient wind driving. References: - Hasselmann, K., 1974. On the spectral dissipation of ocean waves due to whitecapping. Boundary-layer Meteorology,6,107-127.

  6. Louisiana's 2017 Master Plan for a Sustainable Coast

    Science.gov (United States)

    Haase, B.

    2017-12-01

    The Coastal Protection and Restoration Authority is charged with coordinating restoration and protection investments through the development and implementation of Louisiana's Comprehensive Master Plan for a Sustainable Coast. The first master plan was submitted to the Louisiana Legislature in 2007 and is mandated to be updated every five years. The plan's objectives are to reduce economic losses from flooding, promote sustainability by harnessing natural processes, provide habitats for commercial and recreational activities, sustain cultural heritage and promote a viable working coast. Two goals drive decision making about the appropriate suite of restoration and protection projects to include in the Plan: restore and maintain Louisiana's wetlands and provide flood protection for coastal Louisiana's citizens. As part of the decision making process, a wide range of additional metrics are used to evaluate the complex, competing needs of communities, industries, navigation and fisheries. The master plan decision making process includes the identification of individual protection and restoration projects that are evaluated with landscape, storm surge, and risk assessment models and then ranked by how well they perform over time across the set of decision drivers and metrics. High performing projects are assembled into alternatives constrained by available funding and river resources. The planning process is grounded not only on extensive scientific analysis but also on interdisciplinary collaboration between scientists, engineers, planners, community advocates, and coastal stakeholders which creates the long-term dialogue needed for complex environmental planning decisions. It is through this collaboration that recommended alternatives are reviewed and modified to develop the final Plan. Keywords:alternative formulation, comprehensive planning, ecosystem restoration, flood risk reduction and stakeholder engagement

  7. Understanding the ecocline at shallow coasts of the Baltic Sea

    Science.gov (United States)

    Lenartz, B.; Jurasinski, G.; Voss, M.; Janssen, M.

    2017-12-01

    We report on results of the Research Training Group Baltic TRANSCOAST. The overall aim of Baltic TRANSCOAST is to enhance our knowledge of the shallow coast ecocline. How is the marine coastal zone influenced by terrestrial processes? How is the terrestrial coastal zone influenced by marine processes? These questions lead our research within the three research fields covering hydro-dynamic, (bio)geochemical and biological processes. Regarding the hydro-dynamics we assess how the peatland's water balance, the current dynamics and hydraulic properties of the marine sediments and the subsoil influence sea water intrusions into the peatland and/or submarine groundwater discharge into the Baltic Sea. With respect to (bio)geochemical processes we address how (bio)geochemical transformation processes both in the marine and the terrestrial part of the coast are influenced by water and matter inputs from the respective other coastal domain. Finally, reagrding the biological processes, we are interested in revealing how the primary production and the composition of the micro- and macro-phytobenthos in the shallow Baltic Sea influence matter transformation processes. The integrative approach of Baltic TRANSCOAST allows us to get to grips with questions that are otherwise hard to tackle. For instance, we address how the pore water constituents drive microbial processes and the deposition of nutrients and and how they are impacted by sediment resuspension and translocation. We investigate how the hydrology of the peat layers interferes with the generation of trace gases and investigate the role of the nearby Warnow river and its plume and how this changes under the impact of wind direction and wind strength. For the latter we rely on data and models. Further, as a common basis for all topics addressed in Baltic TRANSCOAST we established the geology of the study area and learned that regional variability may play a major role in shaping the processes under study.

  8. A compiled checklist of seaweeds of Sudanese Red Sea coast

    Directory of Open Access Journals (Sweden)

    Nahid Abdel Rahim Osman

    2016-02-01

    Full Text Available Objective: To present an updated and compiled checklist of Sudanese seaweeds as an example for the region for conservational as well as developmental purposes. Methods: The checklist was developed based on both field investigations using line transect method at 4 sites along the Red Sea coast of Sudan and review of available studies done on Sudanese seaweeds. Results: In total 114 macroalgal names were recorded and were found to be distributed in 16 orders, 34 families, and 62 genera. The Rhodophyceae macroalgae contained 8 orders, 17 families, 32 genera and 47 species. The Phaeophyceae macroalgae composed of 4 orders, 5 families, 17 genera, and 28 species. The 39 species of the Chlorophyceae macroalgae belong to 2 classes, 4 orders, 12 families, and 14 genera. The present paper proposed the addition of 11 macroalgal taxa to be included in Sudan seaweeds species list. These include 3 red seaweed species, 1 brown seaweed species and 7 green seaweed species. Conclusions: This list is not yet inclusive and it only represents the macroalgal species common to the intertidal areas of Sudan Red Sea coast. Further investigation may reveal the presence of more species. While significant levels of diversity and endemism were revealed for other groups of organisms in the Red Sea region, similar work still has to be performed for seaweeds. Considering the impact of climate change on communities’ structure and composition and the growing risk of maritime transportation through the Red Sea particularly that may originate from oil tankers as well as that may emanate from oil exploration, baseline data on seaweeds are highly required for management purposes.

  9. Evolution of the US Coast Guard's oil identification system

    International Nuclear Information System (INIS)

    Hendrick, M.S.; Reilly, T.R.

    1993-01-01

    The U.S. Coast Guard, tasked with the development of open-quotes procedures and techniques to be employed in identifying ... oil and hazardous substances . . . open-quotes by the 1972 Federal Water Pollution Control Act (FWPCA), developed the Oil Identification System (OIS). The OIS was based on four analytical laboratory techniques: infrared (IR) and fluorescence (FL) spectroscopy, gas chromatography (GC), and thin- layer chromatography (TLC). A Central Oil Identification Laboratory (COIL) began operation in 1977, and field laboratories (FOILS) using two of the techniques (FL and TLC) were established in many Marine Safety Offices to screen possible sources. Development of the OIS was documented in two formal reports, in 1974 and 1977. The current implementation of the OIS at COIL is still based on a multimethod approach, but it incorporates today's state-of-the-art technology and responds to the current needs of the Coast Guard. One pervasive force for change has been the affordability of computers. The rapid development of computerized instruments has resulted in improvements in the performance, ruggedness, and prices of analytical laboratory equipment. All the instruments in the authors' laboratory at the present time are interfaced to or have internal computerized data-handling systems. Fourier-transform infrared spectrometers (FTIR) have replaced older mechanically scanning, dispersive IR instruments. High-performance liquid chromatography (HPLC) has replaced TLC completely. A gas chromatography/mass spectrometer (GC/MS), a room-size research tool in 1977, sits on a benchtop in the laboratory today, and a standard method for oil identification is being developed for this technique. Laboratory strategies are now based on finding the most efficient use of resources, as rapid response times are not necessary in all cases. It may also be possible in the near future to resume field testing

  10. Oceanic Storm Characteristics off the Kennedy Space Center Coast

    Science.gov (United States)

    Wilson, J. G.; Simpson, A. A.; Cummins, K. L.; Kiriazes, J. J.; Brown, R. G.; Mata, C. T.

    2014-01-01

    Natural cloud-to-ground lightning may behave differently depending on the characteristics of the attachment mediums, including the peak current (inferred from radiation fields) and the number of ground strike locations per flash. Existing literature has raised questions over the years on these characteristics of lightning over oceans, and the behaviors are not yet well understood. To investigate this we will obtain identical electric field observations over adjacent land and ocean regions during both clear air and thunderstorm periods. Oceanic observations will be obtained using a 3-meter NOAA buoy that has been instrumented with a Campbell Scientific electric field mill and New Mexico Techs slow antenna, to measure the electric fields aloft. We are currently obtaining measurements from this system on-shore at the Florida coast, to calibrate and better understand the behavior of the system in elevated-field environments. Sometime during winter 2013, this system will be moored 20NM off the coast of the Kennedy Space Center. Measurements from this system will be compared to the existing on-shore electric field mill suite of 31 sensors and a coastal slow antenna. Supporting observations will be provided by New Mexico Techs Lightning Mapping Array, the Eastern Range Cloud to Ground Lightning Surveillance System, and the National Lightning Detection Network. An existing network of high-speed cameras will be used to capture cloud-to-ground lightning strikes over the terrain regions to identify a valid data set for analysis. This on-going project will demonstrate the value of off-shore electric field measurements for safety-related decision making at KSC, and may improve our understanding of relative lightning risk to objects on the ground vs. ocean. This presentation will provide an overview of this new instrumentation, and a summary of our progress to date.

  11. Northerly wind trends along the Portuguese marine coast since 1950

    Science.gov (United States)

    Leitão, Francisco; Relvas, Paulo; Cánovas, Fernando; Baptista, Vânia; Teodósio, Alexandra

    2018-04-01

    Wind is a marine coastal factor that is little understood but has a strong interaction with biological productivity. In this study, northerly wind trends in three regions of the Portuguese coast (Northwestern: NW, Southwestern: SW, and Southern: S) were analyzed. Two datasets with long-term (ICOADS: 1960-2010) and short-term data (Satellite: 1989-2010) were used to complement one another. The study revealed the northerly wind yearly data to be non-stationary and highly variable between years. Overall, the northerly wind intensity increased throughout the 1960s regardless of the area and dataset. Between 1960 and 2010, the northerly wind increased at a linear rate of 0.24, 0.09, and 0.15 m s-1 per decade in the NW, SW, and S coastal regions, respectively. The rate was higher in recent decades (1988-2009), with the wind intensity increasing by 0.4, 0.3, and 0.3 ms-1 per decade in the NW, SW, and S regions, respectively. Analyses of the sudden shifts showed significant increases in northerly wind intensities after 2003, 2004, and 1998 in the NW, SW, and S coast, respectively. Exceptions were found for autumn (September for short-term data), when a decrease in northerly winds was observed in recent decades, regardless of the area, and for summer, when no changes in wind trends were recorded in the NW and SW. The long-term data also showed a major increase in northerly winds in winter (January and February), which is the recruitment season for many small and medium-sized pelagic fish. The increase in the intensity of the northerly winds over the past two decades and the past half-century occurred at a higher rate than was estimated by the IPCC for the next century.

  12. Determination of net shroe drift direction of central west coast of India using remotely sensed data

    Digital Repository Service at National Institute of Oceanography (India)

    Kunte, P.D; Wagle, B.G.

    stream_size 12 stream_content_type text/plain stream_name J_Coast_Res_9_811.pdf.txt stream_source_info J_Coast_Res_9_811.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  13. On some aspects of Barrier Islands of the west coast, India

    Digital Repository Service at National Institute of Oceanography (India)

    Kunte, P.D

    stream_size 8 stream_content_type text/plain stream_name J_Coast_Res_11_508.pdf.txt stream_source_info J_Coast_Res_11_508.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  14. Phytophthora ramorum in coast live oak: search for resistance and mechanisms.

    Science.gov (United States)

    B.A. McPherson; D.L. Wood; S.R. Mori; A. Conrad; P. Bonello

    2013-01-01

    Despite the presence of Phytophthora ramorum in northern and central California forests since at least 1994, asymptomatic coast live oaks (Quercus agrifolia Née) still remain in heavily infested stands. Coast live oak infection and mortality rates of 5 percent y-1 and 3 percent y-1, respectively, observed in long-term...

  15. 77 FR 31183 - Safety Zone, Temporary Change for Recurring Fireworks Display Within the Fifth Coast Guard...

    Science.gov (United States)

    2012-05-25

    ...-AA00 Safety Zone, Temporary Change for Recurring Fireworks Display Within the Fifth Coast Guard District, Pamlico River and Tar River; Washington, NC AGENCY: Coast Guard, DHS. ACTION: Temporary final... is intended to restrict vessel traffic in a portion of the Pamlico River and Tar River near...

  16. 77 FR 35855 - Safety Zone, Temporary Change for Recurring Fifth Coast Guard District Fireworks Displays...

    Science.gov (United States)

    2012-06-15

    ... 1625-AA00 Safety Zone, Temporary Change for Recurring Fifth Coast Guard District Fireworks Displays; Northwest Harbor (East Channel) and Tred Avon River, MD AGENCY: Coast Guard, DHS. ACTION: Temporary final... Channel), Patapsco River, and Tred Avon River during the event. DATES: This rule is effective from 8 p.m...

  17. Tides in the Mandovi and Zuari estuaries, Goa, west coast of India

    Indian Academy of Sciences (India)

    Indian Ocean, including the Arabian Sea. As a result, the windward side of the Ghats receives high precipitation due to the topographic effect. The rainfall along the central west coast of India is about 250 cm during June–September. The Mandovi and the Zuari are two estuaries that are located along the west coast, in Goa.

  18. Elimination of Coast Guard plan review for non-critical engineering systems and cargo barges

    Science.gov (United States)

    1994-06-21

    The purpose of this Circular is to publish policy that provides for the elimination of Coast Guard review and approval of certain engineering system drawings for all vessels as well as structural drawings for Coast Guard inspected non-self propelled ...

  19. 78 FR 40000 - Eighth Coast Guard District Annual Safety Zones; Riverfront Independence Festival Fireworks; Ohio...

    Science.gov (United States)

    2013-07-03

    ...-AA00 Eighth Coast Guard District Annual Safety Zones; Riverfront Independence Festival Fireworks; Ohio.... SUMMARY: The Coast Guard will enforce a Safety Zone for the Riverfront Independence Festival Fireworks on... navigable waters during the Riverfront Independence Festival Fireworks. During the enforcement period, in...

  20. Stone sculptures of goddesses on the boats from Goa, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Kerkar, R.

    Goa situated on the central west coast of India, has served as an overseas trading post since the early historic times. An onshore exploration along the river Mhadei in the north Goa on the west coast of India yielded 13 boat motifs of different...

  1. Sedimentological parameters of beach sediments on the East Coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Chauhan, O.S.

    stream_size 13 stream_content_type text/plain stream_name J_Coast_Res_6_573.pdf.txt stream_source_info J_Coast_Res_6_573.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  2. Trace elements in near-shore sediments along the east and west coasts of India

    Digital Repository Service at National Institute of Oceanography (India)

    Paropkari, A.L.; Shirodkar, P.V.; Alagarsamy, R.; Kaisary, S.; Mesquita, A.

    the riverine mouths. The analyses showed significant differences in the concentrations of Cu, Zn, Ni, Fe, Mn, Al and TOC between the east and west coasts. Their average bulk concentrations along the east coast are: Cu (59.6 ppm), Zn (103.45 ppm), Ni (115.5 ppm...

  3. A review and re-assessment of sediment transport along the Goa Coast, India

    Digital Repository Service at National Institute of Oceanography (India)

    Kunte, P.D.; Wagle, B.G.; Yasuhiro Sugimori

    Although, a variety of methods have been employed to determine sediment transport along Goa coast, India, the results differ in some sections. Fifteen studies have been reviewed, compared, re-assessed and a corrected shore drift map of the Goa coast...

  4. Wave statistics around the Indian coast based on ship observed data

    Digital Repository Service at National Institute of Oceanography (India)

    Chandramohan, P.; SanilKumar, V.; Nayak, B.U.

    the rest of the year. Waves are higher during the southwest monsoon (June-September) all around the Indian Coasts, with highest intensity of wave activity occurring off northern part of the West Coast and off southern most part of the peninsular India. Wave...

  5. 76 FR 54384 - California State Implementation Plan, South Coast Air Quality Management District; Withdrawal of...

    Science.gov (United States)

    2011-09-01

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2011-0537; FRL-9457-6] California State Implementation Plan, South Coast Air Quality Management District; Withdrawal of Direct Final Rule... Implementation Plan (SIP). This revision concerned South Coast Air Quality Management District (SCAQMD) Rule 1143...

  6. 78 FR 37757 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-06-24

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... Quality Index rather than on 1-hour ozone forecasted values; (b) forecast criteria for allowing a...

  7. 78 FR 30768 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-05-23

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... ``significant regulatory action'' subject to review by the Office of Management and Budget under Executive Order...

  8. 78 FR 7703 - Revisions to the California State Implementation Plan, South Coast Air Quality Management...

    Science.gov (United States)

    2013-02-04

    ... the California State Implementation Plan, South Coast Air Quality Management District, Proposed Rule... approve a revision to the South Coast Air Quality Management District (SCAQMD) portion of the California... digesters. Rule 1127 was designed to implement the 2003 Air Quality Management Plan (AQMP) control measure...

  9. 76 FR 41744 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-07-15

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2011-0537; FRL-9432-1] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State...

  10. 76 FR 40303 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-07-08

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... limited disapproval of revisions to the South Coast Air Quality Management District (SCAQMD) portion of... designated nonattainment for the fine particulate matter (PM2.5) National Ambient Air Quality Standards...

  11. 75 FR 32293 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2010-06-08

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... approve revisions to the South Coast Air Quality Management District (SCAQMD) portion of the California... submit regulations that control the primary and secondary National Ambient Air Quality Standards (NAAQS...

  12. 75 FR 46880 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2010-08-04

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2010-0503; FRL-9183-5] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State...

  13. 76 FR 78871 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-12-20

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2011-0897; FRL-9499-8] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State...

  14. 78 FR 56639 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-09-13

    ...] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... the Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993); does...

  15. 77 FR 52277 - Approval of Air Quality Implementation Plans; California; South Coast Air Quality Management...

    Science.gov (United States)

    2012-08-29

    ... Quality Implementation Plans; California; South Coast Air Quality Management District; Prevention of... rule. SUMMARY: EPA is proposing approval of a permitting rule submitted for the South Coast Air Quality Management District (District) portion of the California State Implementation Plan (SIP). The State is...

  16. 77 FR 1895 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-01-12

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... approve South Coast Air Quality Management District (SCAQMD) Rule 317, ``Clean Air Act Non- Attainment Fee... Air Quality Management District There are two 1-hour ozone nonattainment areas within the jurisdiction...

  17. 77 FR 32398 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-06-01

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... approve a revision to the South Coast Air Quality Management District (SCAQMD) portion of the California... action: Is not a ``significant regulatory action'' subject to review by the Office of Management and...

  18. 77 FR 13495 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-03-07

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993); Does not...

  19. 76 FR 50128 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-08-12

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... not a ``significant regulatory action'' subject to review by the Office of Management and Budget under...

  20. 78 FR 18244 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-03-26

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State...'' subject to review by the Office of Management and Budget under Executive Order 12866 (58 FR 51735, October...

  1. 75 FR 32353 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2010-06-08

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2010-0276; FRL-9139-8] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District portion of the California State Implementation Plan...

  2. 77 FR 32483 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-06-01

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2012-0236; FRL-9670-9] Revisions to the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District portion of the California State Implementation Plan...

  3. 75 FR 46845 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2010-08-04

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... approve revisions to the South Coast Air Quality Management District (SCAQMD) portion of the California..., this action: Is not a ``significant regulatory action'' subject to review by the Office of Management...

  4. 76 FR 72142 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2011-11-22

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District portion of the California State Implementation Plan... Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993); Does not...

  5. 75 FR 25775 - Disapproval of State Implementation Plan Revisions, South Coast Air Quality Management District

    Science.gov (United States)

    2010-05-10

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2009-0573; FRL-9146-5] Disapproval of State Implementation Plan Revisions, South Coast Air Quality Management District AGENCY: Environmental... South Coast Air Quality Management District (SCAQMD) portion of the California State Implementation Plan...

  6. 78 FR 5305 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2013-01-25

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... ``significant regulatory action'' subject to review by the Office of Management and Budget under Executive Order...

  7. 77 FR 58076 - Revisions to the California State Implementation Plan, South Coast Air Quality Management District

    Science.gov (United States)

    2012-09-19

    ... the California State Implementation Plan, South Coast Air Quality Management District AGENCY... the South Coast Air Quality Management District (SCAQMD) portion of the California State... Quality Standards (NAAQS). The revisions to the primary and secondary Lead NAAQS were to provide increased...

  8. 47 CFR 80.107 - Service of private coast stations and marine-utility stations.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Service of private coast stations and marine...) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Operating Requirements and Procedures Operating Procedures-Land Stations § 80.107 Service of private coast stations and marine-utility stations. A...

  9. Indigenous Resistance and Racist Schooling on the Borders of Empires: Coast Salish Cultural Survival

    Science.gov (United States)

    Marker, Michael

    2009-01-01

    The Coast Salish people of British Columbia and Washington State inhabit a borderlands region where they have negotiated the sometimes contrasting policies of two empires. Families belong to more than one village and must travel across the Canada-USA border frequently for ceremonies and events that bind the Coast Salish world together. Both…

  10. Gas-charged sediments in shallow waters off Redi along the central west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Subbaraju, L.V.; Wagle, B.G.

    This study reports the occurrence of gas-charged sediments in the nearshore areas of the west coast of India. High resolution shallow seismic reflection profiles on the nearshore area along central west coast of India, at water depths of 11-18 m...

  11. Bird Habitat Conservation at Various Scales in the Atlantic Coast Joint Venture

    Science.gov (United States)

    Andrew Milliken; Craig Watson; Chuck Hayes

    2005-01-01

    The Atlantic Coast Joint Venture is a partnership focused on the conservation of habitats for migratory birds within the Atlantic Flyway/Atlantic Coast Region from Maine south to Puerto Rico. In order to be effective in planning and implementing conservation in this large and diverse area, the joint venture must work at multiple spatial scales, from the largest ?...

  12. 76 FR 68429 - Availability of Seats for Olympic Coast National Marine Sanctuary Advisory Council

    Science.gov (United States)

    2011-11-04

    ... Olympic Coast National Marine Sanctuary Advisory Council AGENCY: Office of National Marine Sanctuaries... applications for the following vacant seats on the Olympic Coast National Marine Sanctuary Advisory Council... in the area affected by the sanctuary. Applicants who are chosen as members should expect to serve...

  13. 77 FR 16813 - Availability of Seat for Olympic Coast National Marine Sanctuary Advisory Council

    Science.gov (United States)

    2012-03-22

    ... Olympic Coast National Marine Sanctuary Advisory Council AGENCY: Office of National Marine Sanctuaries... applications for the following vacant seat on the Olympic Coast National Marine Sanctuary Advisory Council... resources; and possibly the length of residence in the area affected by the sanctuary. Applicants who are...

  14. 75 FR 66064 - Availability of Seats for Olympic Coast National Marine Sanctuary Advisory Council

    Science.gov (United States)

    2010-10-27

    ... Olympic Coast National Marine Sanctuary Advisory Council AGENCY: Office of National Marine Sanctuaries... applications for the following vacant seats on the Olympic Coast National Marine Sanctuary Advisory Council... in the area affected by the sanctuary. Applicants who are chosen as members should expect to serve...

  15. 76 FR 35755 - Listing Endangered and Threatened Species: Threatened Status for the Oregon Coast Coho Salmon...

    Science.gov (United States)

    2011-06-20

    ... Oregon Coast Coho Salmon Evolutionarily Significant Unit AGENCY: National Marine Fisheries Service (NMFS... the Oregon Coast (OC) Evolutionarily Significant Unit (ESU) of coho salmon (Oncorhynchus kisutch... coho salmon ESU as threatened under the ESA in 1995 (60 FR 38011; July 25, 1995). Since then, we have...

  16. Simulation of Trajectories of Tar Ball Transport to the Goa Coast

    Digital Repository Service at National Institute of Oceanography (India)

    Suneel, V.; Vethamony, P.; VinodKumar, K.; Babu, M.T.; Prasad, V.S.R.

    Arrival of tar balls to the Goa coast during pre- and southwest monsoon seasons has been a regular phenomenon in the past few years. In one such event, we observed tar ball deposits along the Goa coast during August 2010, April 2011 and May 2011...

  17. Inshore small-mesh trawling survey of the Cape south coast. Part 5 ...

    African Journals Online (AJOL)

    Inshore small-mesh trawling survey of the Cape south coast. Part 5. Crustacea, Stomatopoda, Isopoda and. Decapoda. B. Kensley and C.D. Buxton. Port Elizabeth Museum, Port Elizabeth. Forty-six species of Crustacea from the shallow marine waters of the southern Cape coast are listed. Five new records for the area.

  18. 77 FR 28766 - Eighth Coast Guard District Annual Marine Events and Safety Zones

    Science.gov (United States)

    2012-05-16

    .... SUMMARY: On March 1, 2012, the Coast Guard published a direct final rule, amending and updating its... effect as scheduled. The Coast Guard is also correcting two entries in this rule through technical... event's date, location, and the resulting special local regulation remain the same. The next occurrence...

  19. Westward Extension of the Lionfish Pterois volitans Linnaeus, 1758 along the Mediterranean Coast of Turkey

    Directory of Open Access Journals (Sweden)

    Mehmet Gokoglu

    2017-06-01

    Full Text Available One red lionfish (Pterois volitans was caught in the Gulf of Antalya on October 15th 2016. The present study, seconf record of P. volitans was reported in the coast of the Antalya Bay, Turkey. Our study shows that P. volitans westward extension along to Turkey Mediterranean coasts.

  20. Longshore-transport model for South Indian and Sri Lankan Coasts

    Digital Repository Service at National Institute of Oceanography (India)

    Chandramohan, P.; Nayak, B.U.; RamaRaju, V.S.

    stream_size 17 stream_content_type text/plain stream_name J_Waterway_Port_Coast_Ocean_Eng_116_408.pdf.txt stream_source_info J_Waterway_Port_Coast_Ocean_Eng_116_408.pdf.txt Content-Encoding ISO-8859-1 Content-Type text...

  1. 78 FR 8027 - Safety Zone, Coast Guard Exercise Area, Hood Canal, Washington

    Science.gov (United States)

    2013-02-05

    ... 5, 2012. The Coast Guard received zero comments submitted via regulations.gov and received zero... zero comments from the Small Business Administration on this rule. The Coast Guard certifies under 5 U... more in any one year. Though this rule will not result in such an expenditure, we do discuss the...

  2. Dinoflagellate cyst distribution in recent sediments along the south-east coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Narale, D.D.; Patil, J.S.; Anil, A

    sediment) as compared to sub-tropical and temperate regions, but it is on a par with tropical regions, including the west coast of India Comparison of the cyst assemblage along the Indian coast revealed a smaller number of potentially harmful and red...

  3. Intercultural-Bilingual Education for an Interethnic-Plurilingual Society? The Case of Nicaragua's Caribbean Coast.

    Science.gov (United States)

    Freeland, Jane

    2003-01-01

    Latin American models of "intercultural-bilingual" education may be inappropriate for multilingual, interethnic regions such as Nicaragua's Caribbean Coast, where five indigenous and Afro-Caribbean minorities interact in overlapping territories. Examination of one such program and of Coast people's complex linguistic and cultural…

  4. Safety Analysis of the ComCoast concept, Comcoast WP 3

    NARCIS (Netherlands)

    Verhagen, H.J.; Ter Horst, W.L.A.

    2005-01-01

    ComCoast COMbined functions in COASTal defence zones is a European project which develops and presents innovative solutions for flood protection in coastal areas. The ComCoast concept is designed to develop alternative defence systems and new sustainable flood management strategies to cope with

  5. 33 CFR 173.85 - Fees levied by the Coast Guard.

    Science.gov (United States)

    2010-07-01

    .... 173.85 Section 173.85 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) BOATING SAFETY VESSEL NUMBERING AND CASUALTY AND ACCIDENT REPORTING Issue of Certificate of.... (b) Fees are payable by check or money-order made payable to the “U.S. Coast Guard”; by major credit...

  6. Genetic hitch-hiking extends the range of coast live oak

    Science.gov (United States)

    Richard S. Dodd; Zara Afzal-Rafii; Wasima Mayer

    2006-01-01

    The northernmost range of coast live oak (Quercus agrifolia) is reported from the Ukiah Valley (Mendocino County, California). Here, field observations suggest that hybridization with interior live oak (Q. wislizeni) is important. Elsewhere in northern California, morphology of coast live oak can be highly variable (particularly...

  7. 33 CFR 165.506 - Safety Zones; Fifth Coast Guard District Fireworks Displays.

    Science.gov (United States)

    2010-07-01

    ... District Fireworks Displays. 165.506 Section 165.506 Navigation and Navigable Waters COAST GUARD... § 165.506 Safety Zones; Fifth Coast Guard District Fireworks Displays. (a) Regulations. The following regulations apply to the fireworks safety zones listed in the Table to § 165.506. (1) The general regulations...

  8. 76 FR 66239 - Safety Zones; Fireworks Displays Within the Fifth Coast Guard District

    Science.gov (United States)

    2011-10-26

    ...-AA00 Safety Zones; Fireworks Displays Within the Fifth Coast Guard District AGENCY: Coast Guard, DHS... safety zones established for fireworks displays at various locations within the geographic boundary of... maritime public from the hazards posed by fireworks displays. Entry into or movement within these proposed...

  9. 76 FR 7131 - Safety Zones; Eleventh Coast Guard District Annual Fireworks Events

    Science.gov (United States)

    2011-02-09

    ...-AA00 Safety Zones; Eleventh Coast Guard District Annual Fireworks Events AGENCY: Coast Guard, DHS... permanent safety zones to ensure public safety during annual firework displays at various locations in the... events, delete events that are no longer occurring, add new unlisted annual fireworks events to the...

  10. Significance of coast down time on safety and availability of a pool type fast breeder reactor

    International Nuclear Information System (INIS)

    Natesan, K.; Velusamy, K.; Selvaraj, P.; Chellapandi, P.

    2015-01-01

    Highlights: • Plant dynamics studies for quantifying the benefits of flow coast down time. • Establishment of minimum flow coast down time required for safety. • Assessment of influence of flow coast down on enhancing plant availability. • Synthesis of thermo mechanical benefits of flow coast down time on component design. - Abstract: Plant dynamic investigation towards establishing the influence of flow coast down time of primary and secondary sodium systems on safety and availability of plant has been carried out based on one dimensional analysis. From safety considerations, a minimum flow coast down time for primary sodium circuit is essential to be provided to limit the consequences of loss of flow event within allowable limits. Apart from safety benefits, large primary coast down time also improves plant availability by the elimination of reactor SCRAM during short term power failure events. Threshold values of SCRAM parameters also need optimization. By suitably selecting the threshold values for SCRAM parameters, significant reduction in the inertia of pumping systems can be derived to obtain desirable results on plant availability. With the optimization of threshold values and primary flow coast down behaviour equivalent to a halving time of 8 s, there is a possibility to eliminate reactor SCRAM during short term power failure events extending up to 0.75 s duration. Benefits of secondary flow halving on reducing transient thermal loading on components have also been investigated and mixed effects have been observed

  11. Oceanographic data collected during the Florida Coast Deep Corals 2005 expedition aboard the R/V SEWARD JOHNSON along the east coast of Florida from November 7, 2005 - November 21, 2005 (NODC Accession 0002517)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These temperature, salinity and other physical data were collected during the Florida Coast Deep Corals 2005 expedition, Nov 7 - 21, 2005 along the east coast of...

  12. The Coast Guard Intelligence Program Enters the Intelligence Community. A Case Study of Congressional Influence on Intelligence Community Evolution

    National Research Council Canada - National Science Library

    Wirth, Kevin E

    2007-01-01

    .... Although the United States Coast Guard has utilized intelligence capabilities since the service's inception in 1790, the Coast Guard was not included as a formal member of the Intelligence Community until December 2002. Mr...

  13. Flood risk on the Black sea coast of Russia

    Science.gov (United States)

    Alekseevsky, Nikolay; Magritsky, Dmitry; Koltermann, Peter; Krylenko, Inna; Umina, Natalya; Aybulatov, Denis; Efremova, Natalya; Lebedeva, Seraphima

    2013-04-01

    The data of unique database "Floods in the coastal zones of Europeans part of Russia", developed by authors, are shown, that frequency of floods and damage in the coastal zones are growing. There is most dangerous situation on the Black sea coast of Russia. Here the main part of settlements, resorts and industry is situated in the river valleys and mouths. All main roads and pipelines cross the river channels. The Black sea rivers have flood regime with high intensity of flood formations and huge destructive flood power. Despite prevalence of floods during the cold period of year the most part of high floods in 100 years of supervision was noted here in the summer-fall (65% in July-October). Usually they were induced by the showers connected with passing of powerful cyclones, atmospheric fronts, and water tornadoes. The insignificant part of floods was connected with snow melting, backwater phenomena, showers in the cities and dam breaks. Thus shower induced floods here are the most widespread and destructive. Usually they arise within two-three watersheds simultaneously. Formation catastrophic heavy rain flood is possible on any site of a river valley of the Black Sea coast. The wave of a high water moves with very high speed, carrying a large number of deposits and garbage. To the mouth the flood can be transformed into debris flow. The water levels during a high water period rise on 3-6 m in the channels, and up to 11-12 m in the river canyons; the maximum depths of flow on the floodplains are 3 m and more. Flooding depths, induced by slope streams, can be to 0,5 m and higher. Flooding proceeds only some hours. After that water rather quickly flows down from a floodplains to the bed of the rivers and into the sea, leaving traces of destructions, a powerful layer of deposits (to 10-20 cm and more) and garbage. In the mouth river deposits quite often form the river mouth bar which is washed away during next storms. The damage from river floods on the Black Sea

  14. Observed Sea-Level Changes along the Norwegian Coast

    Directory of Open Access Journals (Sweden)

    Kristian Breili

    2017-07-01

    Full Text Available Norway’s national sea level observing system consists of an extensive array of tide gauges, permanent GNSS stations, and lines of repeated levelling. Here, we make use of this observation system to calculate relative sea-level rates and rates corrected for glacial isostatic adjustment (GIA along the Norwegian coast for three different periods, i.e., 1960 to 2010, 1984 to 2014, and 1993 to 2016. For all periods, the relative sea-level rates show considerable spatial variations that are largely due to differences in vertical land motion due to GIA. The variation is reduced by applying corrections for vertical land motion and associated gravitational effects on sea level. For 1960 to 2010 and 1984 to 2014, the coastal average GIA-corrected rates for Norway are 2.0 ± 0.6 mm/year and 2.2 ± 0.6 mm/year, respectively. This is close to the rate of global sea-level rise for the same periods. For the most recent period, 1993 to 2016, the GIA-corrected coastal average is 3.5 ± 0.6 mm/year and 3.2 ± 0.6 mm/year with and without inverse barometer (IB corrections, respectively, which is significantly higher than for the two earlier periods. For 1993 to 2016, the coastal average IB-corrected rates show broad agreement with two independent sets of altimetry. This suggests that there is no systematic error in the vertical land motion corrections applied to the tide-gauge data. At the same time, altimetry does not capture the spatial variation identified in the tide-gauge records. This could be an effect of using altimetry observations off the coast instead of directly at each tide gauge. Finally, we note that, owing to natural variability in the climate system, our estimates are highly sensitive to the selected study period. For example, using a 30-year moving window, we find that the estimated rates may change by up to 1 mm/year when shifting the start epoch by only one year.

  15. Tsunami on Sanriku Coast in 1586: Orphan or Ghost Tsunami ?

    Science.gov (United States)

    Satake, K.

    2017-12-01

    The Peruvian earthquake on July 9, 1586 was the oldest earthquake that damaged Lima. The tsunami height was assigned as 24 m in Callao and 1-2 m in Miyagi prefecture in Japan by Soloviev and Go (1975). Dorbath et al. (1990) studied historical earthquakes in Peru and estimated that the 1586 earthquake was similar to the 1974 event (Mw 8.1) with source length of 175 km. They referred two different tsunami heights, 3. 7m and 24 m, in Callao, and judged that the latter was exaggerated. Okal et al. (2006) could not make a source model to explain both tsunami heights in Callao and Japan. More recently, Butler et al. (2017) estimated the age of coral boulders in Hawaii as AD 1572 +/- 21, speculated the tsunami source in Aleutians, and attributed it to the source of the 1586 tsunami in Japan. Historical tsunamis, both near-field and far-field, have been documented along the Sanriku coast since 1586 (e.g., Watanabe, 1998). However, there is no written document for the 1586 tsunami (Tsuji et al., 2013). Ninomiya (1960) compiled the historical tsunami records on the Sanriku coast soon after the 1960 Chilean tsunami, and correlated the legend of tsunami in Tokura with the 1586 Peruvian earthquake, although he noted that the dates were different. About the legend, he referred to Kunitomi(1933) who compiled historical tsunami data after the 1933 Showa Sanriku tsunami. Kunitomi referred to "Tsunami history of Miyagi prefecture" published after the 1896 Meiji Sanriku tsunami. "Tsunami history" described the earthquake and tsunami damage of Tensho earthquake on January 18 (Gregorian),1586 in central Japan, and correlated the tsunami legend in Tokura on June 30, 1586 (G). Following the 2011 Tohoku tsunami, tsunami legend in Tokura was studied again (Ebina, 2015). A local person published a story he heard from his grandfather that many small valleys were named following the 1611 tsunami, which inundated further inland than the 2011 tsunami. Ebina (2015), based on historical documents

  16. 33 CFR 150.20 - How many copies of the operations manual must be given to the Coast Guard?

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false How many copies of the operations manual must be given to the Coast Guard? 150.20 Section 150.20 Navigation and Navigable Waters COAST... § 150.20 How many copies of the operations manual must be given to the Coast Guard? The draft operations...

  17. 78 FR 33216 - Temporary Change of Dates for Recurring Marine Event in the Fifth Coast Guard District, Mattaponi...

    Science.gov (United States)

    2013-06-04

    ... 1625-AA08 Temporary Change of Dates for Recurring Marine Event in the Fifth Coast Guard District, Mattaponi Drag Boat Race, Mattaponi River; Wakema, VA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary change to the enforcement period of special local...

  18. 76 FR 30827 - Temporary Change of Dates for Recurring Marine Event in the Fifth Coast Guard District; Elizabeth...

    Science.gov (United States)

    2011-05-27

    ...-AA08 Temporary Change of Dates for Recurring Marine Event in the Fifth Coast Guard District; Elizabeth River, Norfolk, VA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard will... various river boat races and a parade during the ``35th Annual Norfolk Harborfest Celebration.'' Special...

  19. 46 CFR 159.007-7 - Application for acceptance for production inspections and tests: Coast Guard action.

    Science.gov (United States)

    2010-10-01

    ... and tests: Coast Guard action. 159.007-7 Section 159.007-7 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL APPROVAL....007-7 Application for acceptance for production inspections and tests: Coast Guard action. (a) From...

  20. 33 CFR 165.776 - Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico 165.776 Section 165.776 Navigation and Navigable Waters COAST... Guard District § 165.776 Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico (a...

  1. 78 FR 77359 - Eighth Coast Guard District Annual Safety Zones; New Year's Eve Celebration/City of Mobile...

    Science.gov (United States)

    2013-12-23

    ...-AA00 Eighth Coast Guard District Annual Safety Zones; New Year's Eve Celebration/City of Mobile; Mobile Channel; Mobile, AL AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard will enforce the City of Mobile New Year's Eve Celebration safety zone in the Mobile Channel, Mobile, AL from...

  2. 77 FR 10430 - Revision to the South Coast Air Quality Management District Portion of the California State...

    Science.gov (United States)

    2012-02-22

    ... South Coast Air Quality Management District Portion of the California State Implementation Plan, South... South Coast Air Quality Management District (District) portion of the California SIP. This SIP revision... Coast Air Quality Management District New Source Review by Gerardo C. Rios, October 24, 1996 (TSD). \\2...

  3. 77 FR 15600 - Special Local Regulation; Emerald Coast Super Boat Grand Prix; Saint Andrew Bay; Panama City, FL

    Science.gov (United States)

    2012-03-16

    ...-AA08 Special Local Regulation; Emerald Coast Super Boat Grand Prix; Saint Andrew Bay; Panama City, FL... navigable waters during the Emerald Coast Super Boat Grand Prix high speed boat races. Entry into... needed to safeguard persons and vessels from safety hazards associated with the Emerald Coast Super Boat...

  4. 76 FR 28795 - Privacy Act of 1974; Department of Homeland Security United States Coast Guard-024 Auxiliary...

    Science.gov (United States)

    2011-05-18

    ... 1974; Department of Homeland Security United States Coast Guard-024 Auxiliary Database System of... Security/United States Coast Guard-024 Auxiliary Database (AUXDATA) System of Records.'' This system of...: United States Coast Guard Auxiliary Database (AUXDATA). Security classification: Unclassified. System...

  5. 75 FR 67391 - Notice of Intent To Prepare a Draft Environmental Impact Statement for the West Coast Recycling...

    Science.gov (United States)

    2010-11-02

    ... a Draft Environmental Impact Statement for the West Coast Recycling Group Project in West Sacramento... (EIS/EIR) for the development of the West Coast Recycling Group project located at the Port of West... meeting date. SUPPLEMENTARY INFORMATION: Description of the Proposed Action The West Coast Recycling Group...

  6. Coasting, embryo development and outcomes of blastocyst transfer: a case-control study.

    Science.gov (United States)

    Talebi Chahvar, Solmas; Zosmer, Ariel; Caragia, Alina; Balestrini, Simona; Sabatini, Luca; Tranquilli, Andrea Luigi; Al-Shawaf, Talha

    2014-08-01

    This study compared the effect on blastocyst development and clinical outcome of coasting in women at increased risk of moderate-severe ovarian hyperstimulation syndrome (OHSS; n=389) with a control group matched for age and basal FSH that did not undergo coasting (n=386) in IVF/intracytoplasmic sperm injection (ICSI) cycles. The main outcome measures were rate of blastocyst development and live birth. More cycles progressed to the blastocyst stage in the coasted group (n=169) compared with the control group (n=83; 43.4% versus 21.5%; P<0.001). The biochemical pregnancy, clinical pregnancy and live birth rates were similar (46.5% versus 42.0%; 40.6% versus 37.8%; 31.6% versus 30.1%). The duration of coasting up to 4 days did not affect progression to blastocyst stage. The multivariate model showed that coasting (OR 1.73, P=0.004) and the number of oocytes retrieved (OR 1.17, P=0.001) were positively correlated with blastocyst formation. Coasting, a measure to reduce the risk of OHSS, does not impair blastocyst development or clinical outcome. Coasting should remain an effective measure to prevent OHSS. Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.

  7. Erosion reasons and rate on accumulative Polish dune coast caused by the January 2012 storm surge

    Directory of Open Access Journals (Sweden)

    Tomasz A. Łabuz

    2014-03-01

    Full Text Available The Polish coast is a non-tidal area; its shores are affected mainly by autumn-winter storm surges. Those of 6 and 14 January 2012 are representative of the forces driving the erosion of normally accumulative sections of coastal dunes, monitored by the author since 1997. The sea level maximum during these two storm surges reached 1.2 to 1.5 m amsl along the Polish coast. Land forms up to 3 m amsl were inundated. Beaches and low parts of the coast up to this height were rebuilt by sea waves attacking the coast for almost 12 days. Quantitative analyses of the morphological dynamics of the coastal dunes are presented for 57 profiles located along the coast. Only those accumulative sections of the Polish coast are analysed where sand accumulation did occur and led to new foredune development. The mean rate of dune erosion was 2.5 m3 per square metre with an average toe retreat of 1.4 m. Erosion understood as dune retreat was greater when a beach was lower (correlation coefficient 0.8. Dune erosion did not occur on coasts with beaches higher than 3.2 m or on lower ones covered by embryo dunes.

  8. Prediction of ovarian hyperstimulation syndrome in coasted patients in an IVF/ICSI program

    Directory of Open Access Journals (Sweden)

    Fatimah Y Aljawoan

    2012-01-01

    Full Text Available Aim: To determine why a subgroup of coasted patients developed moderate/severe ovarian hyperstimulation syndrome (OHSS in an assisted reproduction setting. Materials and Methods: Retrospective study of 2948 in-vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI treatment cycles with 327 patients requiring coasting. Long protocol gonadotrophin releasing hormone analogue (GnRH-a regimen was used and serum estradiol (E 2 checked when ≥20 follicles were noted on follicular tracking. Coasting was initiated when leading three follicles were ≥15mm with E 2 ≥1635pg/ml. Results: The incidence of moderate/severe OHSS was 10.4% in coasted patients (equivalent 1.15% of the total IVF/ICSI cycles in the Center. Coasted patients who subsequently developed OHSS showed a significantly higher number of retrieved oocytes, higher serum E 2 level on the day of human chorionic gonadotrophin (hCG administration, and multiple pregnancies. No significant differences were noted with female age, BMI, cause of infertility, gonadotrophin dosage, coasting duration, and % of E 2 drop. Conclusion: Moderate/severe OHSS might be predicted in coasted patients by a combination of total oocyte numbers and E 2 level on the day of hCG. Multiple pregnancies also significantly increased the risk.

  9. Artificial radioactivity on the coasts of Northern Ireland

    International Nuclear Information System (INIS)

    Garland, J.A.; McKay, W.A.; Burton, P.J.; Cambray, R.S.

    1989-01-01

    In Northern Ireland, measurements of artificial radioactivity have been made in inshore seawater, beach sand and mud, sea spray, the air and material deposited from the air, and in coastal soil. The objective was to determine the levels in the coastal environment and also to assess the magnitude of transport of radioactivity from sea to land in sea spray. The results would provide a basis for the development of a model describing sea to land transfer, and allowing the resulting population exposure to be assessed. The results showed the presence of plutonium isotopes, 241 Am and 137 Cs in some samples of each of the media measured, but concentrations were low in all cases. Large variation in the concentrations in seawater and beach sediment were attributed to variations in dispersion and in the characteristics of the sediment. Sea to land transfer of actinides was detected in samples of sea spray and in air and deposition measurements. Only at some sites on the east coast could the resulting accumulation in soil close to the beach be distinguished from fallout. Following May 1986 137 Cs from Chernobyl could be detected in air and in atmospheric deposition. A preliminary assessment of the exposure of the population to the actinides and 137 Cs in all the media showed that the resulting dose is a small fraction of the recognised limit. (author)

  10. Florida Atlantic Coast Telemetry (FACT) Array: A Working Partnership

    Science.gov (United States)

    Scheidt, Douglas; Ault, Erick; Ellis, Robert D.; Gruber, Samuel; Iafrate, Joseph; Kalinowsky, Chris; Kessel, Steven; Reyier, Eric; Snyder, David; Watwood, Stephanie; hide

    2015-01-01

    The Florida Atlantic Coast Telemetry (FACT) Array is a collaborative partnership of researchers from 24 different organizations using passive acoustic telemetry to document site fidelity, habitat preferences, seasonal migration patterns, and reproductive strategies of valuable sportfish, sharks, and marine turtles. FACT partners have found that by bundling resources, they can leverage a smaller investment to track highly mobile animals beyond a study area typically restrained in scale by funds and manpower. FACT is guided by several simple rules: use of the same type of equipment, locate receivers in areas that are beneficial to all researchers when feasible, maintain strong scientific ethics by recognizing that detection data on any receiver belongs to the tag owner, do not use other members detection data without permission and acknowledge FACT in publications. Partners have access to a network of 480 receivers deployed along a continuum of habitats from freshwater rivers to offshore reefs and covers 1100 km of coastline from the Dry Tortugas, Florida to South Carolina and extends to the Bahamas. Presently, 49 species, (25 covered by Fisheries Management Plans and five covered by the Endangered Species Act) have been tagged with 2736 tags in which 1767 tags are still active.

  11. Measured wind speed trends on the west coast of Canada

    Science.gov (United States)

    Tuller, Stanton E.

    2004-09-01

    Trends in measured wind speed are discussed for four stations on the west coast of Canada. Periods of record vary with the station. They begin in the late 1940s or the 1950s and run through to the early to mid 1990s. The most prominent feature of the time series was a decline in mean annual and winter wind speeds at Cape St James, Victoria International Airport, and Vancouver International Airport during the middle portion of the record. Declines in mean annual wind speed are matched by increases in the percentage of calms and decreases in high wind speed observations. The pressure gradient between Victoria, Vancouver and Comox, the Pacific North American index, the Pacific decadal oscillation index, and other climate elements in British Columbia and the northwestern USA show trends at roughly the same time, indicating a natural cause of the wind speed decrease. Comox Airport mean wind speeds increased, however, perhaps the result of reduced friction in the vicinity of the anemometer outweighing the decrease in the regional pressure gradient.

  12. Chernobyl radioactivity on the Black Sea coast of Turkey

    International Nuclear Information System (INIS)

    Goekmen, I.G.; Akgoez, M.; Goekmen, A.

    1996-01-01

    After the Chernobyl reactor accident, Eastern Black Sea coast was one of the heavily contaminated regions of Turkey. Clouds loaded with radioactive isotopes arrived the region on May 1986 and emptied their contents with the heavy rains that are frequently seen in the region. In order to asses the current level of contamination, several different samples, moss, lichen, litter, surface soil and soil cores were collected on August 1994. Samples were brought to the laboratory and their moisture, pH and organic matter contents were determined. Gamma-ray spectra of the samples were collected with a HpGe detector. 137 Cs was the major isotope observed. Activity of most litter samples were below 1000 Bq/kg, while most of the moss samples had activities below 5000 Bq/kg, there were a few with higher 137 Cs activities. Surface soil samples generally had activities less than 2000 Bq/kg and depth profiles of cesium activities in the soil cores showed regional variations. (orig.)

  13. Exogenic geomorphic processes dynamics at the Black Sea coast, Russia

    Science.gov (United States)

    Kuznetsova, Yulia; Tsvetkova, Daria

    2017-04-01

    Nowadays there is an obvious grow of anthropogenic load going on in many areas worldwide. Under such conditions, intensive activation of a number of exogenic geomorphic processes may be observed. Moreover, if natural environment is aggressive itself their dynamics and rates may reach enormous values. Our work is conducted at the Black Sea coast, known for its mountainous topography, wet subtropical climate and intensive anthropogenic development (especially during the last decade due to the recent Olympic games). We chose two key basins near Sochi, Russia to study a number of presented exogenic processes, including rill, gully and channel erosion, weathering, suffusion and piping, soil creep. A set of field study methods is used to monitor the processes dynamics since 2005 (and late 1970s for soil creep). In addition, soil erosion rates and landslide susceptibility were modelled to get information of the watersheds dynamics. This is ongoing work, but the results of the passed period of observations will be resented. Special attention is paid to the processes connectivity and their input into sediment redistribution over the river basins.

  14. Potentiality of wind power generation along the Bangladesh coast

    Science.gov (United States)

    Shaikh, Md. Akramuzzaman; Chowdhury, K. M. Azam; Sen, Sukanta; Islam, Mohammad Masudul

    2017-12-01

    Nowadays Bangladesh is facing the problem with electricity as the production is less comparing to the demand. A significant amount of electricity is consumed in urban areas especially by industries whereas in rural or coastal areas most of the people are not having it. Around 40 millions of people living in the 724 km long coast in Bangladesh. Moreover, it is surprising that throughout the year there is sufficient wind blow in coastal areas by which we can produce a massive amount of electricity. However, day by day the utilization of wind energy is increasing in the world which reduces costs of renewable energy technology, improves efficiency. It would be a good alternative solution instead of dependency on natural gas. Wind energy is mainly potential in coastal and offshore areas with strong wind regimes. Wind energy is vital for ensuring a green energy for the future. The agricultural land of Bangladesh needs the supply of water at right time for better yielding. The installation of windmills will be very much convenient for operating the water supply pumps. This research highlights the possibility of wind energy and describes the necessary steps to implement and develop wind energy sector in Bangladesh by using other's successful ideas. Supportive policies, rules, and decree can be applied to make government, non-government organization, and donor organizations work together to develop wind energy sector in Bangladesh.

  15. Monitoring changing geologic features along the Texas Gulf Coast

    Science.gov (United States)

    Hunter, R. E. (Principal Investigator)

    1972-01-01

    The author has identified the following significant results. Water truth observations, NASA aerial photography from an altitude of 60,000 feet, and ERTS-1 imagery made off the South Texas coast showed a mutually consistent pattern of water turbidity in the Gulf of Mexico. At the time of the measurements, plumes of turbid water were being formed by ebb-tidal discharges from the bays through tidal passes and were being diverted southward by the coastwise drift. The occurrence of the bands of turbid and relatively clear water suggests the existence of large scale helical circulation cells having axes almost parallel to shore with the outer turbid band probably being a zone of surface divergence and bottom water upwelling. The impingement of a turbid water mass onto the shoreline suggests that some, and perhaps most, of the suspended sediment in nearshore waters may not have been stirred up from the nearshore sea floor but may have traveled long distances in the water mass, perhaps even having remained in suspension from the time of its entry into the Gulf tidal inlets such as Aransas Pass.

  16. Fine-grained sediment dispersal along the California coast

    Science.gov (United States)

    Warrick, Jonathan A.; Storlazzi, Curt D.

    2013-01-01

    Fine-grained sediment (silt and clay) enters coastal waters from rivers, eroding coastal bluffs, resuspension of seabed sediment, and human activities such as dredging and beach nourishment. The amount of sediment in coastal waters is an important factor in ocean ecosystem health, but little information exists on both the natural and human-driven magnitudes of fine-grained sediment delivery to the coastal zone, its residence time there, and its transport out of the system—information upon which to base environmental assessments. To help fill these information gaps, the U.S. Geological Survey has partnered with Federal, State, and local agencies to monitor fine-grained sediment dispersal patterns and fate in the coastal regions of California. Results of these studies suggest that the waves and currents of many of the nearshore coastal settings of California are adequately energetic to transport fine-grained sediment quickly through coastal systems. These findings will help with the management and regulation of fine-grained sediment along the U.S. west coast.

  17. Threatened fish and fishers along the Brazilian Atlantic Forest Coast.

    Science.gov (United States)

    Begossi, Alpina; Salivonchyk, Svetlana; Hallwass, Gustavo; Hanazaki, Natalia; Lopes, Priscila F M; Silvano, Renato A M

    2017-12-01

    Small-scale fisheries of the Brazilian Atlantic Forest Coast (BAFC) depend on fish resources for food and income. Thus, if the catch diminishes or if fish species that are a target for fishers are overexploited or impacted, this could affect fishers' livelihoods. The exclusion of threatened fish species from the catch is believed to be a threat to small-scale fisheries, which is likely to be the case along the BAFC. Many fish species are currently listed as threatened or vulnerable, whereas there is not enough biological information available to determine the status of the majority of the other species. Failure to protect the BAFC biodiversity might negatively impact fishers' income and the regional economy of local small-scale fisheries. We collected data from 1986 to 2009 through 347 interviews and 24-h food recall surveys at seven southeastern coastal sites of the Atlantic Forest. We show that important species of consumed fish are currently threatened: of the 65 species mentioned by fishers as the most consumed fishes, 33% are decreasing and 54% have an unknown status. Thus, biological and ecological data for BAFC marine species are urgently needed, along with co-management, to promote fish conservation.

  18. Seasonal variations in fouling diatom communities on the Yantai coast

    Science.gov (United States)

    Yang, Cuiyun; Wang, Jianhua; Yu, Yang; Liu, Sujing; Xia, Chuanhai

    2015-03-01

    Fouling diatoms are a main component of biofilm, and play an important role in marine biofouling formation. We investigated seasonal variations in fouling diatom communities that developed on glass slides immersed in seawater, on the Yantai coast, northern Yellow Sea, China, using microscopy and molecular techniques. Studies were conducted during 2012 and 2013 over 3, 7, 14, and 21 days in each season. The abundance of attached diatoms and extracellular polymeric substances increased with exposure time of the slides to seawater. The lowest diatom density appeared in winter and the highest species richness and diversity were found in summer and autumn. Seasonal variation was observed in the structure of fouling diatom communities. Pennate diatoms Cylindrotheca, Nitzschia, Navicula, Amphora, Gomphonema, and Licmophora were the main fouling groups. Cylindrotheca sp. dominated in the spring. Under laboratory culture conditions, we found that Cylindrotheca grew very fast, which might account for the highest density of this diatom in spring. The lower densities in summer and autumn might result from the emergence of fouling animals and environmental factors. The Cylindrotheca sp. was identified as Cylindrotheca closterium using18S rDNA sequencing. The colonization process of fouling diatoms and significant seasonal variation in this study depended on environmental and biological factors. Understanding the basis of fouling diatoms is essential and important for developing new antifouling techniques.

  19. An observational study of sea breeze characteristics over Kalpakkam Coast

    International Nuclear Information System (INIS)

    Mohan, Manju; Mishra, M.K.

    2005-01-01

    An observational study of the sea breeze characteristics has been carried out at Kalpakkam, India which lies on the East coast of Southern Indian peninsula about 700 m inland from the sea, the Bay of Bengal. There are clear and significant changes in the surface meteorological parameters at the onset and during sea-breeze phenomenon in the coastal areas. Hourly averaged measurements from a 30 m tall micrometeorological tower were used to study the sea-breeze characteristics at the above site. In this study, based on detailed analysis of the data on-set criteria of the sea breeze is characterized by increase in relative humidity at least by 5%, fall in temperature by equal or greater than 0.5 K and increase in wind speed with respect to previous hour record. The present study is also compared with the earlier studies in relation to sea breeze carried out at Chennai located approximately 80 km North from Kalpakkam and the differences between these studies are discussed. The comparison of sea breeze characteristics of the present study with those from earlier studies that were carried out more than half a century back also reflects the changes due to urbanization and other development activities as well as resulting climatic impacts. (author)

  20. Atlantic Coast Unique Regional Atmospheric Tracer Experiment (ACURATE)

    International Nuclear Information System (INIS)

    Schubert, J.F.; Heffter, J.L.; Mead, G.A.

    1983-05-01

    The Atlantic Coast Unique Regional Atmospheric Tracer Experiment (ACURATE) is a program designed to obtain data necessary to evaluate atmospheric transport and diffusion models used to calculate regional population doses caused by nuclear facility emissions to the atmosphere. This experiment will significantly improve the basis for evaluating the cost effectiveness of different methods of managing airborne nuclear wastes. During the period from March 1982 through September 1982, twice daily air samples have been collected at each of five sampling stations located on a radial from the SRP to Murray Hill, NJ (1000 km). Kr-85 emitted from the F and H area chemical separations facilities is being used as a tracer to determine the transport and diffusion of atmospheric releases from the SRP. The Kr-85 concentrations in the air samples will be compared with the calculated concentrations as predicted by the transport and diffusion models. The Kr-85 data and the meteorological data are being archived and will be made available to the modeling community

  1. Wave Energy Resource along the Coast of Santa Catarina (Brazil

    Directory of Open Access Journals (Sweden)

    Pasquale Contestabile

    2015-12-01

    Full Text Available Brazil has one of the largest electricity markets in South America, which needs to add 6000 MW of capacity every year in order to satisfy growing the demand from an increasing and more prosperous population. Apart from biomass, no other renewable energy sources, besides hydroelectricity, play a relevant role in the energy mix. The potential for wind and wave energy is very large. Brazil's Santa Catarina state government is starting a clean energy program in the state, which is expected to bring more than 1 GW of capacity. Assessment of wave energy resources is needed along the coastline. This work studied the potential wave energy along the north-central coasts of Santa Catarina, in Southern Brazil, by analysis of the hindcast data from the European Centre for Medium-Range Weather Forecasts (ECMWF. The annual offshore wave power was found to be equal to 15.25 kW/m, the bulk of which is provided by southeastern waves. The nearshore energetic patterns were studied by means of a numerical coastal propagation model (Mike21 SW. The mean wave power of 20 m isobaths is 11.43 kW/m. Supplementary considerations are drawn on realistic perspectives for wave energy converters installations.

  2. Ichthyoplankton transport from the African coast to the Canary Islands

    Science.gov (United States)

    Brochier, Timothée; Mason, Evan; Moyano, Marta; Berraho, Amina; Colas, Francois; Sangrà, Pablo; Hernández-León, Santiago; Ettahiri, Omar; Lett, Christophe

    2011-08-01

    The Canary Upwelling System (CUS), a major eastern boundary upwelling system, sustains large cross-border fisheries of small pelagic fish, which poses the question of stock connectivity. Studies suggest that ichthyoplankton transport from the northwest African coast to the Canary Islands (CI) is facilitated by coastal-upwelling associated filaments. Here we analyze connections between larval supply to the CI and sardine and anchovy populations that spawn over the continental shelf. For both species, ichthyoplankton observations (1) at the shelf and (2) near the island of Gran Canaria (GC) are used. Predictions of ichthyoplankton transport to GC are obtained from the Ichthyop Lagrangian transport model, which is forced by a high-resolution hydrodynamic model (ROMS) that reproduces the regional circulation. Results show that upwelling filaments play an important role in the transport of larvae to GC. However, (1) filaments are not the only mechanism, and (2) filament presence does not necessarily imply larval transport. Anchovy and sardine larval presence at GC appears to be independent of the respective adult spawning seasonality. Combining of observed and modeled data does not succeed in reproducing the observed larval patterns at GC. Various hypotheses are proposed to explain this discrepancy in larval transport to GC.

  3. Sustainable management for the eastern Mediterranean coast of Turkey.

    Science.gov (United States)

    Berberoglu, Süha

    2003-03-01

    The objective of this article is to propose a program for the integrated coastal zone management that is required to stimulate and guide sustainable development of the Mediterranean coastal zone of Turkey. Improved data collection, quality control, analysis, and data management will provide a firm basis for future scientific understanding of the East Mediterranean coast of Turkey and will support long-term management. Various innovative procedures were proposed for a promising ecosystem-based approach to manage coastal wetlands in the Mediterranean: remote data acquisition with new technologies; environmental quality monitoring program that will provide a baseline for monitoring; linking a Geographic Information System (GIS) with natural resource management decision routines in the context of operational wetlands, fisheries, tourism management system; environmental sensitivity analysis to ensure that permitted developments are environmentally sustainable; and use of natural species to restore the wetlands and coastal dunes and sustain the system processes. The proposed management scheme will benefit the scientific community in the Mediterranean and the management/planning community in Eastern Turkey.

  4. Bio screening of marine organisms from the coasts of Pakistan

    International Nuclear Information System (INIS)

    Khan, A.M.; Ameen, M.; Naz, S.; Noureen, S.

    2012-01-01

    This review article covers the literature on bio screening of crude extracts, fractions and pure compounds isolated from various marine organisms including seaweeds, mangroves, invertebrates and bacteria collected from the coasts of Karachi (Pakistan) published during the period 1984-2010. Recent studies showed that a number of novel compounds have been isolated from marine organisms possessing interesting biological activities. Various research groups from Pakistan have conducted the extensive bioassay-guided investigation of chemical constituents of marine organisms which showed anti-bacterial, anti-fungal, nematicidal, anti-inflammatory, anti-leishmanial, anti-coagulation, cytotoxicity, enzyme inhibition, inhibition of edema, anti-cancer, brine shrimp lethality, Lemna minor bioassay, phyto toxicity, spasmolytic, analgesic and hypolipidaemic activities. More than 70 marine organisms have been reported with reference to their biological studies and about 100 pure compounds were isolated from these organisms but only 18 compounds and 5 synthetic analogues of compound 1 were found active. This review article is particularly focused only on the reported bioactive compounds and crude extracts of marine organisms. (author)

  5. Modeling Waves and Coastal Flooding along the Connecticut Coast

    Science.gov (United States)

    Cifuentes-Lorenzen, A.; Howard-Strobel, M. M.; Fake, T.; McCardell, G.; O'Donnell, J.; Asthita, M.

    2015-12-01

    We have used a hydrodynamic- wave coupled numerical model (FVCOM-SWAVE) to simulate flooding at the Connecticut coastline during severe storms. The model employed a one-way nesting scheme and an unstructured grid. The parent domain spanned most of the southern New England shelf and the fine resolution grid covered Long Island Sound (LIS) and extended across the Connecticut coast to the 10m elevation contour. The model results for sea level, current and wave statistics from the parent grid have been tested with data from several field campaigns at different locations spanning the western, central and eastern portions of LIS. Waves are fetch limited and improvements to the model-data comparison required modifications to spectral coefficients in the wave model. Finally, the nested results were validated with two field campaigns in shallow water environments (i.e. New Haven and Old Saybrook). To assess the spatial variability of storm wave characteristics the domain was forced with the hindcast winds obtained from meteorological models (NAM and WRF) for 13 severe weather events that affected LIS in the past 15 years. We have also forced the system with a simulation of Superstorm Sandy in a warmer climate to assess the impact a climate change on the character of flooding. The nested grid is currently being used to map flooding risks under severe weather events including the effects of precipitation on river flow and discharge.

  6. Fog chemistry in the Texas-Louisiana Gulf Coast corridor

    Science.gov (United States)

    Raja, Suresh; Raghunathan, Ravikrishna; Yu, Xiao-Ying; Lee, Taehyoung; Chen, Jing; Kommalapati, Raghava R.; Murugesan, Karthik; Shen, Xinhua; Qingzhong, Yuan; Valsaraj, Kalliat T.; Collett, Jeffrey L.

    Fog samples were collected in two population centers of the US Gulf Coast (Houston, Texas and Baton Rouge, Louisiana) using Caltech active strand cloud collectors. A total of 32 fogwater samples were collected in Baton Rouge (November 2004-February 2005) and Houston (February 2006). These samples were analyzed for pH, total and dissolved organic carbon, major inorganic ions, and a variety of organic compounds including organic acids, aromatics, carbonyls, and linear alkanes. Fogs in both environments were of moderate density, with typical fog liquid water contents <100 mg m -3. Fog samples collected in Houston reflect a clear influence of marine and anthropogenic inputs, while Baton Rouge samples also reflect agricultural inputs. The volume-weighted mean fog pH was somewhat more acidic (˜4.3) in Houston than in Baton Rouge (˜5.0). A wide pH range was observed in fog at both locations. Houston fog had higher concentrations of Cl -, NO 3-, Na +, Mg 2+, and Ca 2+. Sulfate to nitrate ratios were high in fogs at both locations, typical of many clouds in the eastern US. Total organic carbon concentrations were much higher in Houston fogs than in Baton Rouge fogs. Efforts to speciate dissolved organic carbon (DOC) reveal large contributions from organic acids and carbonyls, with smaller contributions from other organic compound families including aromatics, alkanes, amides, and alcohols. Approximately 40% of the fog DOC was unspeciated in samples from both study locations.

  7. Characterization of California Central Coast Aquifers using Pneumatic Slug Tests

    Science.gov (United States)

    Aurelius, S.; Platt, D.; Whetsler, B.; Malama, B.

    2017-12-01

    The recent prolonged drought in California, where about 75% of the population depends to some extent ongroundwater, has led to increased stresses on the state's groundwater resources due to reduced recharge andincreased abstraction to supplement dwindling surface water supplies for irrigation and other urban uses.These factors have conspired to cause historic lows in groundwater levels, lost aquifer storage capacity dueincreased potential for land subsidence, and degraded water quality in coastal aquifers faced with increasedrates of seawater intrusion. Groundwater accounts for about a third of the total water uses in California,with some coastal communities being 100% dependent on groundwater. Irrigation accounts for over 60%of all state groundwater withdrawals in California. In light of this, the state of California recently passedthe Sustainable Groundwater Management Act (SGMA) aimed at bringing the State's groundwater basinsinto sustainable regimes of abstraction, recharge and storage. Groundwater ow models are critical to thesuccessful implementation of the SGMA legislation. However, the usefulness of the models is severely limitedby a lack of detailed knowledge of aquifer properties at spatial scales that allow for accurate projections tobe made about groundwater basin sustainability by resource managers. We report here the results of highresolution pneumatic slug tests performed in two shallow aquifers in San Luis Obispo County on the CaliforniaCentral Coast to obtain detailed information about aquifer properties, including permeability and storage,and their spatial variability.

  8. Review of the twelfth West Coast retrovirus meeting

    Directory of Open Access Journals (Sweden)

    Melar Marta

    2005-11-01

    Full Text Available Abstract Every year the Cancer Research Institute from University of California at Irvine organizes the West Coast Retrovirus Meeting where participants have a chance to discuss the latest progress in understanding the pathology of retroviruses. The 12th meeting was held at the Hyatt Regency Suites in Palm Springs, California from October 6th to October 9th 2005, with the major focus on human immunodeficiency virus (HIV pathogenesis. Philippe Gallay from The Scripps Research Institute and Thomas J. Hope from Northwestern University organized the meeting, which covered all the steps involved in the lifecycle of retroviruses with an emphasis on virus:host interactions. The trend in research appeared to be on the restriction of viral infection, both by the endogenous, cellular restriction factors, as well as by the potential antimicrobial compounds of known or unknown mechanisms. Additionally, new stories on the inevitable feedback from the host immune system were presented as well. HIV still represents a challenge that an army of motivated people has been working on for over 20 years. And yet, the field has not reached the plateau in knowledge nor enthusiasm, which was proven again in October 2005 in Palm Springs.

  9. Dynamic stability of coral reefs on the west Australian coast.

    Directory of Open Access Journals (Sweden)

    Conrad W Speed

    Full Text Available Monitoring changes in coral cover and composition through space and time can provide insights to reef health and assist the focus of management and conservation efforts. We used a meta-analytical approach to assess coral cover data across latitudes 10-35°S along the west Australian coast, including 25 years of data from the Ningaloo region. Current estimates of coral cover ranged between 3 and 44% in coral habitats. Coral communities in the northern regions were dominated by corals from the families Acroporidae and Poritidae, which became less common at higher latitudes. At Ningaloo Reef coral cover has remained relatively stable through time (∼28%, although north-eastern and southern areas have experienced significant declines in overall cover. These declines are likely related to periodic disturbances such as cyclones and thermal anomalies, which were particularly noticeable around 1998/1999 and 2010/2011. Linear mixed effects models (LME suggest latitude explains 10% of the deviance in coral cover through time at Ningaloo. Acroporidae has decreased in abundance relative to other common families at Ningaloo in the south, which might be related to persistence of more thermally and mechanically tolerant families. We identify regions where quantitative time-series data on coral cover and composition are lacking, particularly in north-western Australia. Standardising routine monitoring methods used by management and research agencies at these, and other locations, would allow a more robust assessment of coral condition and a better basis for conservation of coral reefs.

  10. Radionuclide uptake in red macroalgae from the Bulgarian Black Sea coast

    International Nuclear Information System (INIS)

    Nonova, Tz.; Strezov, A.

    2005-01-01

    Technogenic and natural radionuclide content in red macroalgae (Ceramium rubrum, Corallina officinalis and Callithamnion corymbosum) from the Bulgarian Black Sea coast, collected in the period 1992-2003, was studied by low-level gamma-spectrometry. The data show that the nuclide concentrations depend on macroalgae species and coast locations. The highest nuclide content was measured in Ceramium rubrum species. The 137 Cs mean value is 9.8 Bq/kg, 19.6 Bq/kg for 226 Ra and 17 Bq/kg for 210 Pb. The radionuclide pollution is considerably small due to the absence of nuclear facilities along the Bulgarian Black Sea coast. (author)

  11. The Strengthening of Geological Infrastructure, Research and Data Acquisition - Using Gis in Ivory Coast Gold Mines

    Directory of Open Access Journals (Sweden)

    Kouame Kouame Joseph Arthur

    2017-01-01

    Full Text Available The artisanal gold mining in Ivory Coast has become a key problem in the mining sector. A diverse group of people in Ivory Coast, including the young and the old, are all engaged in these activities that are reportedly better than agricultural inputs. However, it is still a high-risk activity that leads to pollution, environmental degradation and the loss of human life. About ten people die each year in the gold mines. This paper focuses on gold mine safety by using the Geographic Information System (GIS as a major solution to solve the artisanal gold mines problem, and also seeks to promote the mining industry in Ivory Coast.

  12. Radiocarbon dates of the medieval period stone anchors from Dabhol, west coast of India

    Digital Repository Service at National Institute of Oceanography (India)

    Gaur, A.S.; Sundaresh; Tripati, S.; Vora, K.H.

    (Table 1) belong to Indo-Arab type and are similar to those reported from Dwarka, Bet Dwarka, Miyani, Visawada and Mithivirdi on the Saurash- tra coast 8 , and also on the Tamil Nadu coast 9 . Anchor 1 is with lower portion broad and tapers upper... the history of the place as a port/harbour. The anchors are similar to those reported from other places on the coast of India and the other Indian Ocean countries, including Dwarka 10 , Bet Dwarka 11 , Miyani and Visawada 12 , Somnath 13 and Mithivirdi...

  13. The energy system of choice for the east coast : natural gas lessons learned in east coast Canada

    International Nuclear Information System (INIS)

    Rankin, S.

    2001-01-01

    Maritime and Northeast Pipeline is a partnership between Westcoast Energy, Duke Energy, Exxon Mobil, and Emera representing an investment of $2 billion. Maritimes and Northeast Pipeline will play a major role in future resource development off Canada's east coast. Graphs depicting North American annual natural gas demand were presented for Canada, Mexico and the United States. The current energy supply shortage is driven by a growth in power generation. Natural gas is the fuel of choice because of its capital cost, environmental advantages as well as its efficient and proven technology. A map was included which illustrating the locations of North American natural gas supply basins along with their estimated remaining reserves. The presentation also made reference to natural gas price impacts. Natural gas in New England is destined mostly for use in power generation. Maps were included which showed the pipeline distribution to get Maritime and Northeast Pipeline gas to markets in eastern Canada and New England. The challenge will be to maintain a healthy price environment, to continue with successful drilling programs, and to identify transportation routes to take advantage of expanding markets. tabs., figs

  14. Coastal vulnerability index for the Tabasco State coast, Mexico

    Directory of Open Access Journals (Sweden)

    Juan Carlos Nuñez Gómez

    2016-11-01

    Full Text Available Sea level rise is one of the most serious events that will impact low-lying lands, as is the case of most of Tabasco State. Historically, the State of Tabasco has been repeatedly impacted by extreme floods, the most recent one occurring in 2007. However, recent studies have shown that coastal erosion is the effect that most directly has impacted the Tabasco’s coastline, as this has even modified soil strata; this is also related to extreme hydrometeorological events associated with environmental changes and changes in the salinity gradient off the coast. In such a situation, future changes in the coastline are almost certain. Tabasco’s coastline has been recognized as one of the most vulnerable zones in the country since Mexico’s first national communication to the UNFCCC in 1997. Therefore, it is important to evaluate the vulnerability of this zone. The purpose of this study was to estimate the vulnerability of the Tabasco’s coastline by applying the coastal vulnerability index method (IVM using a geographic information system (GIS. This method has been successfully applied in several different places around the world including Canada, the United State, Spain and Indonesia. This model is suitable for the local conditions of Tabasco coast, as the input variables it requires (including waves, tides, sea level, coastal slope, erosion rates and geomorphology are available for the study area, thus allowing the possibility of estimating the coast’s vulnerability based on local data. Results from map algebra operations showed that the zones of very high or high vulnerability encompass a six-kilometer stretch around the Sánchez Magallanes community, near the del Carmen lagoon in the municipality of H. Cárdenas, Tabasco. This is due to the high-waves regime and other conditions associated to the coastal dune geomorphology as well as the unconsolidated fine sediments prevailing therein. Other high vulnerability zones are found just in front

  15. Tides at the east coast of Lanzarote Island

    Science.gov (United States)

    Benavent, M.; Arnoso, J.; Vélez, E. J.

    2012-04-01

    The main goal of this work is the study of the ocean tides at the east coast of Lanzarote (Canary Islands). We have analyzed time series of tide gauge and bottom pressure observations available in the region and we have made a further comparative validation with recent global and local ocean tide models. Lanzarote island shows singular features, with regard its volcanic structure and geomorphological properties and, also, concerning the characteristics of the ocean tides in the surrounding waters. For this reason, this region experiences a great interest in Geodesy and Geodynamics. Particularly, an accurate modelization of the ocean tides is of great importance to correct with high accuracy the effect of the ocean over the multiple geodetic measurements that are being carried out in the Geodynamic Laboratory of Lanzarote, LGL (Vieira et al., 1991; 2006). Furthermore, the analysis of tide gauge and bottom pressure records in this area is of great importance to investigate sea level variations, to evaluate and quantify the causes of these changes and the possible correlation with vertical movements of the Earth's crust. The time series of sea level and bottom pressure data considered in this work are obtained at two different locations of the island and, in each of them, using several sensors at different periods of time. First location is Jameos del Agua (JA) station, which belongs to the LGL. This station is placed in the open ocean, 200 meters distant from the northeastern coast of the island and at 8 meters depth. The observations have been carried out using 3 bottom pressure sensors (Aanderaa WLR7, SAIV TD301A and Aqualogger 210PT) at different periods of time (spanning a total of six years). Second location is Arrecife (AR) station, which is 23 km south of JA station. In this case, the sea level data come from a float tide gauge belonging to the Instituto Español de Oceanografía, installed at the beginning of the loading bay, and a radar tide gauge from the

  16. A proposed wave farm on the Galician coast

    International Nuclear Information System (INIS)

    Veigas, M.; López, M.; Romillo, P.; Carballo, R.; Castro, A.; Iglesias, G.

    2015-01-01

    Highlights: • The productions of four wave energy converters are estimated and compared. • The electric production of single units and 12 MW power plants are considered. • Three study sites at different water depths in the northwest of Spain are studied. • The occupation of the wave plant is considered to determine the best technology. • The Wave Dragon resulted the technology with the highest production. - Abstract: This work is focused on the analysis of the wave resource and its exploitation by means of a proposed 12 MW wave plant in Northwestern Spain. For this purpose, a total of four current technologies of wave conversion are analysed at three different sites located at different water depths, which correspond to one of the European areas with the greatest wave energy resource and where its electric production is still underdeveloped. To carry out the research, the wave data recorded at an offshore buoy near the area and the power matrices of the four selected wave energy technologies are used. The offshore wave conditions—representing 95% of the total energy of an average year—are propagated through spectral numerical modelling towards the coast. On the basis of the results, two of the four selected technologies forming the 12 MW power plants and one of the three considered points emerge as the ones allowing the greatest energy production and, at the same time, having a minimum area of occupation which, in turn, is crucial to reducing the visual impact. Finally, this research discusses the energy supply capacity of the proposed plants to satisfy the energy consumption required by nearby communities

  17. Radionuclides in marine mammals off the Portuguese coast

    International Nuclear Information System (INIS)

    Malta, Margarida; Carvalho, Fernando P.

    2011-01-01

    Radionuclide analyses were performed in tissue samples including muscle, gonad, liver, mammary gland, and bone of marine mammals stranded on the Portuguese west coast during January-July 2006. Tissues were collected from seven dolphins (Delphinus delphis and Stenella coeruleoalba) and one pilot whale (Globicephala sp.). Samples were analyzed for 210 Po and 210 Pb by alpha spectrometry and for 137 Cs and 40 K by gamma spectrometry. Po-210 concentrations in common dolphin's muscle (D. delphis) averaged 56 ± 32 Bq kg -1 wet weight (w.w.), while 210 Pb averaged 0.17 ± 0.07 Bq kg -1 w.w., 137 Cs averaged 0.29 ± 0.28 Bq kg -1 w.w., and 40 K 129 ± 48 Bq kg -1 w.w. Absorbed radiation doses due to these radionuclides for the internal organs of common dolphins were computed and attained a 1.50 μGy h -1 on a whole body basis. 210 Po was the main contributor to the weighted absorbed dose, accounting for 97% of the dose from internally accumulated radionuclides. These computed radiation doses in dolphins are compared to radiation doses from 210 Po and other radionuclides reported for human tissues. Due to the high 210 Po activity concentration in dolphins, the internal radiation dose in these marine mammals is about three orders of magnitude higher than in man. - Highlights: → In marine mammals the highest activity concentrations were those of 40 K and 210 Po. → Absorbed radiation doses in dolphin tissues attained 1.50 mGy h -1 on a whole body basis. → Po-210 was the main contributor (97%) to the internal absorbed radiation dose. → The high 210 Po concentration in the marine mammal's tissues is due to food chain transfer. → The absorbed radiation dose in dolphins is three orders of magnitude higher than in man.

  18. Seismotectonics and fault structure of the California Central Coast

    Science.gov (United States)

    Hardebeck, Jeanne L.

    2010-01-01

    I present and interpret new earthquake relocations and focal mechanisms for the California Central Coast. The relocations improve upon catalog locations by using 3D seismic velocity models to account for lateral variations in structure and by using relative arrival times from waveform cross-correlation and double-difference methods to image seismicity features more sharply. Focal mechanisms are computed using ray tracing in the 3D velocity models. Seismicity alignments on the Hosgri fault confirm that it is vertical down to at least 12 km depth, and the focal mechanisms are consistent with right-lateral strike-slip motion on a vertical fault. A prominent, newly observed feature is an ~25 km long linear trend of seismicity running just offshore and parallel to the coastline in the region of Point Buchon, informally named the Shoreline fault. This seismicity trend is accompanied by a linear magnetic anomaly, and both the seismicity and the magnetic anomaly end where they obliquely meet the Hosgri fault. Focal mechanisms indicate that the Shoreline fault is a vertical strike-slip fault. Several seismicity lineations with vertical strike-slip mechanisms are observed in Estero Bay. Events greater than about 10 km depth in Estero Bay, however, exhibit reverse-faulting mechanisms, perhaps reflecting slip at the top of the remnant subducted slab. Strike-slip mechanisms are observed offshore along the Hosgri–San Simeon fault system and onshore along the West Huasna and Rinconada faults, while reverse mechanisms are generally confined to the region between these two systems. This suggests a model in which the reverse faulting is primarily due to restraining left-transfer of right-lateral slip.

  19. Soil radioactivity study in littoral coast of Antalaha - Ambohitralanana

    International Nuclear Information System (INIS)

    Barijaona, A.F.

    2014-01-01

    The aim of this work is to study the soil radioactivity along Antalaha - Ambohitralanana littoral coast. The radionuclides measured are potassium- 40, uranium-238 and thorium-232. Fifty (50) soil samples were collected and measured by gamma spectrometry with NaI(Tl) detector at the Nuclear Analyses and Techniques Department at INSTN-Madagascar. The method developed by RYBACH was used for determining the three radionuclides activities. This method exploit the four regions of interest of lead-214, potassium-40, bismuth-214 and thallium-208 respectively at 352 keV, 1461 keV, 1764 keV and 2614 keV. Uranium-238 activities ranged from (4.6±0.3)Bq.kg -1 to (109±6)Bq.kg -1 with an average value of 23 Bq.kg -1 , thorium-232 varied from (9 ±6)Bq.kg -1 to (146±6) Bq.kg -1 with an average value of 31 Bq.kg -1 and potassium-40 ranged from (103±23)Bq.kg -1 to (1039±36)Bq.kg -1 with an average value of 338 Bq.kg -1 . The activities are thereafter compared with average worldwide value. Furthermore, different parameters such as the absorbed dose rate, the radium equivalent activity and the annual effective dose rate are also calculated. In the same way, the results are compared to worldwide values and annual effective dose limit rate for the public. The obtained values show a normal environmental radioactivity. It can be concluded that the health risk due to the gamma radiation is low. [fr

  20. Evaluating transport in the WRF model along the California coast

    Directory of Open Access Journals (Sweden)

    C. E. Yver

    2013-02-01

    Full Text Available This paper presents a step in the development of a top-down method to complement the bottom-up inventories of halocarbon emissions in California using high frequency observations, forward simulations and inverse methods. The Scripps Institution of Oceanography high-frequency atmospheric halocarbons measurement sites are located along the California coast and therefore the evaluation of transport in the chosen Weather Research Forecast (WRF model at these sites is crucial for inverse modeling. The performance of the transport model has been investigated by comparing the wind direction and speed and temperature at four locations using aircraft weather reports as well at all METAR weather stations in our domain for hourly variations. Different planetary boundary layer (PBL schemes, horizontal resolutions (achieved through nesting and two meteorological datasets have been tested. Finally, simulated concentration of an inert tracer has been briefly investigated. All the PBL schemes present similar results that generally agree with observations, except in summer when the model sea breeze is too strong. At the coarse 12 km resolution, using ERA-interim (ECMWF Re-Analysis as initial and boundary conditions leads to improvements compared to using the North American Model (NAM dataset. Adding higher resolution nests also improves the match with the observations. However, no further improvement is observed from increasing the nest resolution from 4 km to 0.8 km. Once optimized, the model is able to reproduce tracer measurements during typical winter California large-scale events (Santa Ana. Furthermore, with the WRF/CHEM chemistry module and the European Database for Global Atmospheric Research (EDGAR version 4.1 emissions for HFC-134a, we find that using a simple emission scaling factor is not sufficient to infer emissions, which highlights the need for more complex inversions.