{"title":"Study on the Effect of Morphology Change on Salinity Distribution in the Dinh An Estuary, Lower Mekong River of Vietnam","authors":"T.V. Nguyen, H. Tanaka","doi":"10.2112/jcr-si50-052.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-052.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"49 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphodynamics of artificial beach fronts on straits","authors":"T. Kakinoki, G. Tsujimoto, K. Uno","doi":"10.2112/jcr-si50-099.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-099.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140368870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The upwelling structure and its seasonal variation along Zhejiang and Fujian coast of the East China Sea are studied using a three-dimensional baroclinic nonlinear numerical model forced by QuikSCAT winds over 20002004, in which other important factors such as realistic topography, boundary currents (Taiwan Warm Current, Kuroshio and Changjiang Discharge) and heat flux are all included. Numerical model results indicate that there exist obvious upwellings in the coastal area along Zhejiang and Fujian coast during every season and their intensity and spatial distribution have distinct seasonal variability. The stronger upwelling centres are mostly located in the vicinity of Zhoushan Islands and Yushan Archipelago of Zhejiang coast, Haitan Island and Mazu Archipelago of Fujian coast. In addition, the mean upwelling velocity is about 0.3 x 10(-3) cm/s and the magnitude of upwelling intensity is 10(-3) cm/s in winter, while in summer they are about 0.3 x 10(-2) cm/s and 10(-2) cm/s, respectively. The modelling results also show that the change rate of upwelling intensity is less in wintertime with the weaker coastal upwelling but quite to the contrary in summertime.
利用 2000~2004 年 QuikSCAT 风驱动的三维条带非线性数值模式研究了东海浙闽沿岸的上升流结构及其季节变化，并将现实地形、边界流（台湾暖流、黑潮和长江排流）和热通量等其他重要因素都包括在内。数值模式结果表明，浙闽沿海每个季节都存在明显的上升流，其强度和空间分布具有明显的季节变化。较强的上升流中心主要位于浙江沿海的舟山群岛和玉山群岛附近，福建沿海的海坛岛和妈祖群岛附近。此外，冬季平均上升流速度约为 0.3 x 10(-3) cm/s，上升流强度约为 10(-3) cm/s；夏季平均上升流速度约为 0.3 x 10(-2) cm/s，上升流强度约为 10(-2) cm/s。模拟结果还表明，冬季沿岸上升流较弱，上升流强度的变化率较小，而夏季则相反。
{"title":"Numerical Study on the Coastal Upwelling and Its Seasonal Variation in the East China Sea","authors":"Z. Jing, Z. Hua, Yq Qi, Xh Cheng","doi":"10.2112/jcr-si50-106.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-106.1","url":null,"abstract":"The upwelling structure and its seasonal variation along Zhejiang and Fujian coast of the East China Sea are studied using a three-dimensional baroclinic nonlinear numerical model forced by QuikSCAT winds over 20002004, in which other important factors such as realistic topography, boundary currents (Taiwan Warm Current, Kuroshio and Changjiang Discharge) and heat flux are all included. Numerical model results indicate that there exist obvious upwellings in the coastal area along Zhejiang and Fujian coast during every season and their intensity and spatial distribution have distinct seasonal variability. The stronger upwelling centres are mostly located in the vicinity of Zhoushan Islands and Yushan Archipelago of Zhejiang coast, Haitan Island and Mazu Archipelago of Fujian coast. In addition, the mean upwelling velocity is about 0.3 x 10(-3) cm/s and the magnitude of upwelling intensity is 10(-3) cm/s in winter, while in summer they are about 0.3 x 10(-2) cm/s and 10(-2) cm/s, respectively. The modelling results also show that the change rate of upwelling intensity is less in wintertime with the weaker coastal upwelling but quite to the contrary in summertime.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"59 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
BUYNEVICH, I., BITINAS, A. and PUPIENIS, D., 2007. Reactivation of coastal dunes documented by subsurface imaging of the Great Dune Ridge, Lithuania. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 226 – 230. Gold Coast, Australia, ISSN 0749.0208 Large coastal and inland dunefields often consist of multiple generations defined by periods of stability and reactivation. Where earlier phases of aeolian activity are masked by subsequent deposition, continuous highresolution geophysical images help to reconstruct the history of landscape change. Ground-penetrating radar (GPR) profiles from relict Holocene dunes on the northern Curonian Spit, Lithuania reveal distinct contacts between older deposits (barrier-spit facies, older aeolian strata, paleosols) and overlying dune sands. Early stages of dune migration began prior to 6,000 years B.P. followed by several periods of stabilisation and subsequent reactivation. Parabolic and transverse dunes, some attaining heights of 40-60 m, have migrated to the east in response to westerly winds from the Baltic Sea. In several places, similar to a number of sites in Northern Europe, the upper sections of large dunes have been deflated leaving near-horizontal exposures where subsurface imaging extends the continuity of key stratigraphic horizons. Within dune sequences, oblique lateral accretion surfaces indicate the direction of earlier migration phases and exhibit distinct meso-scale geometries. In GPR images and shallow trenches, buried slipfaces have dip angles varying from 10-15o to 31-34o, the latter being similar to the angle of repose maintained by modern unvegetated dunes. A series of cores taken through sequences of stacked buried slipfaces show little visible variation in sediment properties with depth, suggesting that minor changes in texture, mineralogy and grain packing may be responsible for individual reflections in geophysical records. Occasionally, laterally extensive horizons enriched in heavy minerals produce prominent subsurface reflections and are indicative of periods of increased wind activity.
BUYNEVICH, I., BITINAS, A. and PUPIENIS, D., 2007.The ocean and the ocean of the ocean.The ocean and the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean.The ocean and the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean of the ocean.当早期的风化活动被随后的沉积掩盖时，连续的高分辨率地球物理图像有助于重建景观变 化的历史。立陶宛库罗尼亚海湾北部全新世沙丘的探地雷达（GPR）剖面显示，较早的沉积物（屏障-海湾面、较早的风化层、古沉积物）与上覆沙丘沙之间存在明显的接触。沙丘迁移的早期阶段始于公元前 6,000 年之前，随后经历了几个稳定期和重新活跃期。抛物线状和横向沙丘（有些高达 40-60 米）在来自波罗的海的西风作用下向东迁移。在一些地方，与北欧的一些地点类似，大型沙丘的上部已经塌陷，留下了近乎水平的露头，在这些露头的地下成像中，关键地层的连续性得以延伸。在沙丘序列中，倾斜的横向增生面显示了早期迁移阶段的方向，并呈现出独特的中尺度几何形状。在 GPR 图像和浅沟中，埋藏的滑动面的倾角从 10-15o 到 31-34o 不等，后者与现代未植被沙丘保持的倾角相似。通过堆叠的埋藏滑动面序列采集的一系列岩芯显示，沉积物性质随深度的变化几乎不明显，这表明质地、矿物学和颗粒堆积的微小变化可能是地球物理记录中个别反射的原因。偶尔，富含重矿物的横向广泛地层会产生突出的次表层反射，表明风力活动增加的时期。
{"title":"Reactivation of Coastal Dunes Documented by Subsurface Imaging of the Great Dune Ridge, Lithuania","authors":"I. Buynevich, A. Bitinas, D. Pupienis","doi":"10.2112/jcr-si50-044.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-044.1","url":null,"abstract":"BUYNEVICH, I., BITINAS, A. and PUPIENIS, D., 2007. Reactivation of coastal dunes documented by subsurface imaging of the Great Dune Ridge, Lithuania. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 226 – 230. Gold Coast, Australia, ISSN 0749.0208 Large coastal and inland dunefields often consist of multiple generations defined by periods of stability and reactivation. Where earlier phases of aeolian activity are masked by subsequent deposition, continuous highresolution geophysical images help to reconstruct the history of landscape change. Ground-penetrating radar (GPR) profiles from relict Holocene dunes on the northern Curonian Spit, Lithuania reveal distinct contacts between older deposits (barrier-spit facies, older aeolian strata, paleosols) and overlying dune sands. Early stages of dune migration began prior to 6,000 years B.P. followed by several periods of stabilisation and subsequent reactivation. Parabolic and transverse dunes, some attaining heights of 40-60 m, have migrated to the east in response to westerly winds from the Baltic Sea. In several places, similar to a number of sites in Northern Europe, the upper sections of large dunes have been deflated leaving near-horizontal exposures where subsurface imaging extends the continuity of key stratigraphic horizons. Within dune sequences, oblique lateral accretion surfaces indicate the direction of earlier migration phases and exhibit distinct meso-scale geometries. In GPR images and shallow trenches, buried slipfaces have dip angles varying from 10-15o to 31-34o, the latter being similar to the angle of repose maintained by modern unvegetated dunes. A series of cores taken through sequences of stacked buried slipfaces show little visible variation in sediment properties with depth, suggesting that minor changes in texture, mineralogy and grain packing may be responsible for individual reflections in geophysical records. Occasionally, laterally extensive horizons enriched in heavy minerals produce prominent subsurface reflections and are indicative of periods of increased wind activity.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"64 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HEMER, M.A.; CHURCH, J.A. and HUNTER, J.R., 2007. Waves and climate change on the Australian coast, SI 50 (Proceedings of the 9th International Coastal Symposium), 432 – 437. Gold Coast, Australia, ISSN 0749.0208. There is a need to plan for the impacts of coastal erosion in response to climate change Australia-wide. A deepwater wave climatology of the Australian region is determined, which is required as boundary conditions for coastal wave models. Available wave data for the Australian region has been analysed to determine the mean climatology and interannual variability of mean significant wave height. Available data includes global wave model output from the ECMWF 45-yr re-analysis, ERA-40; corrected ERA-40 wave heights and the NOAA WaveWatch III operational wave model; satellite altimetry measurements; and data from a network of 30 waverider buoys surrounding the Australian coast located on the inner-mid continental shelf and some short-term deep-water wave-rider buoy deployments. These data have been analysed to determine the long-term mean, annual cycle and interannual variability of the mean Australian wave climate. Correlation with a number of climate indices in the Australian region indicate that southern ocean wind anomalies are a dominant mechanism responsible for variability of wave climate in the region. Correlation between monthly mean significant wave heights and the Southern Oscillation Index is significant along Australia’s eastern margin. ADDITIONAL INDEX WORDS: Climatology, waves, Australia
HEMER, M.A.; CHURCH, J.A. and HUNTER, J.R., 2007.Waves and climate change on the Australian coast, SI 50 (Proceedings of the 9th International Coastal Symposium), 432 - 437. Gold Coast, Australia, ISSN 0749.0208.澳大利亚黄金海岸，ISSN 0749.0208。有必要对澳大利亚全境因气候变化而造成的海岸侵蚀影响进行规划。确定了澳大利亚地区的深水波浪气候，作为沿岸波浪模式的边界条件。对澳大利亚地区现有的波浪数据进行了分析，以确定平均显著波高的平均气候和年际变 化。现有数据包括 ECMWF 45 年再分析的全球波浪模式输出结果，ERA-40；修正后的 ERA-40 波高和 NOAA WaveWatch III 业务波浪模式；卫星测高数据；澳大利亚沿海内、中大陆架周围 30 个乘波浮标网和一些短期深水乘波浮标布放的数据。对这些数据进行了分析，以确定澳大利亚平均波浪气候的长期平均值、年周期和年际变化。与澳大利亚地区一些气候指数的相关性表明，南部海洋风异常是造成该地区波浪气候变异的主要机制。在澳大利亚东缘，月平均显著波浪高度与南方涛动指数之间的相关性很大。补充索引词：气候学、波浪、澳大利亚
{"title":"Waves and Climate Change on the Australian Coast","authors":"M. Hemer, J. Hunter","doi":"10.2112/jcr-si50-083.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-083.1","url":null,"abstract":"HEMER, M.A.; CHURCH, J.A. and HUNTER, J.R., 2007. Waves and climate change on the Australian coast, SI 50 (Proceedings of the 9th International Coastal Symposium), 432 – 437. Gold Coast, Australia, ISSN 0749.0208. There is a need to plan for the impacts of coastal erosion in response to climate change Australia-wide. A deepwater wave climatology of the Australian region is determined, which is required as boundary conditions for coastal wave models. Available wave data for the Australian region has been analysed to determine the mean climatology and interannual variability of mean significant wave height. Available data includes global wave model output from the ECMWF 45-yr re-analysis, ERA-40; corrected ERA-40 wave heights and the NOAA WaveWatch III operational wave model; satellite altimetry measurements; and data from a network of 30 waverider buoys surrounding the Australian coast located on the inner-mid continental shelf and some short-term deep-water wave-rider buoy deployments. These data have been analysed to determine the long-term mean, annual cycle and interannual variability of the mean Australian wave climate. Correlation with a number of climate indices in the Australian region indicate that southern ocean wind anomalies are a dominant mechanism responsible for variability of wave climate in the region. Correlation between monthly mean significant wave heights and the Southern Oscillation Index is significant along Australia’s eastern margin. ADDITIONAL INDEX WORDS: Climatology, waves, Australia","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"64 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZHENG, J.-H., JENG, D.-S. and MASE, H., 2007. Sandy beach profile response to sloping seawalls: an experimental study. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 334 – 337. Gold Coast, Australia, ISSN 0749.0208. Seawalls are commonly used as a tool for coastal defence worldwide. Most previous studies have considered the case of vertical seawalls and descriptions of existing seawalls, rather than the influence of different designs of sloping seawalls on beach erosion. In this study, laboratory investigations of an undistorted moveable bed model were conducted to determine the resulting beach profile of artificial sandy beaches. In the experiments, three different sloping seawalls were considered under erosive wave conditions with a 50-year return period. The coast of Northern Jiangsu Province, China, is used as a case study. To simulate natural conditions, similarity criteria are developed assuming that the energy dissipation per unit volume along the beach profile is uniform and that the wave properties can be properly scaled by Froude criteria. Field surveys of beach profile changes due to the storm surge induced by Typhoon 9711 were taken to validate the experimental model and good agreements were attained. Spatial profile configurations were studied by examining dominant profile features such as the break point bar and the scour trough on the seawall-backed profiles. Experimental results provided a reference for the maintenance of artificial sandy beaches and the design of seawalls on the coast of Northern Jiangsu Province, China.
ZHENG, J.-H., JENG, D.-S. and MASE, H., 2007.Sandy beach profile response to sloping seawalls: an experimental study.Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 334 - 337.澳大利亚黄金海岸，ISSN 0749.0208。海堤是全世界海岸防御的常用工具。以前的大多数研究都考虑了垂直海堤的情况和对现有海堤的描述，而没有考虑不同设计的斜 坡海堤对海滩侵蚀的影响。在这项研究中，对一个无扭曲的可移动海床模型进行了实验室调查，以确定人工沙滩的海滩轮廓。在实验中，考虑了 50 年一遇的侵蚀波条件下三种不同的倾斜海堤。以中国江苏省北部海岸为案例进行研究。为模拟自然条件，制定了相似性标准，假定沿海滩剖面单位体积的能量耗散是均匀的，且波浪特性可通过弗劳德标准适当缩放。为验证实验模型，对 9711 号台风引起的风暴潮造成的海滩剖面变化进行了实地调查，结果表明两者吻合良好。通过研究海堤背斜剖面上的断点条和冲刷槽等主要剖面特征，对空间剖面构造进行了研究。实验结果为中国苏北沿海人工沙滩的维护和海堤的设计提供了参考。
{"title":"Sandy Beach Profile Response to Sloping Seawalls: An Experimental Study","authors":"Jinhai Zheng, D. Jeng, H. Mase","doi":"10.2112/jcr-si50-065.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-065.1","url":null,"abstract":"ZHENG, J.-H., JENG, D.-S. and MASE, H., 2007. Sandy beach profile response to sloping seawalls: an experimental study. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 334 – 337. Gold Coast, Australia, ISSN 0749.0208. Seawalls are commonly used as a tool for coastal defence worldwide. Most previous studies have considered the case of vertical seawalls and descriptions of existing seawalls, rather than the influence of different designs of sloping seawalls on beach erosion. In this study, laboratory investigations of an undistorted moveable bed model were conducted to determine the resulting beach profile of artificial sandy beaches. In the experiments, three different sloping seawalls were considered under erosive wave conditions with a 50-year return period. The coast of Northern Jiangsu Province, China, is used as a case study. To simulate natural conditions, similarity criteria are developed assuming that the energy dissipation per unit volume along the beach profile is uniform and that the wave properties can be properly scaled by Froude criteria. Field surveys of beach profile changes due to the storm surge induced by Typhoon 9711 were taken to validate the experimental model and good agreements were attained. Spatial profile configurations were studied by examining dominant profile features such as the break point bar and the scour trough on the seawall-backed profiles. Experimental results provided a reference for the maintenance of artificial sandy beaches and the design of seawalls on the coast of Northern Jiangsu Province, China.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"63 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT O ZDEN , U.A. and T OPAL , T., 2007. Quality assessment of the armourstones for some Black Sea rubble mound breakwaters, Turkey. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 190 – 194. Gold Coast, Australia, ISSN 0749.0208 The Black Sea coastline is a hazardous region in Turkey, especially in winter, due to the dominant wave action. Therefore, rubble mound breakwaters used as ship shelters are vital structures, especially for the fishermen. Construction of the breakwater requires good quality, durable armourstones. Due to the nature of the rubble mound breakwaters, armourstones of various sizes and types are used in the construction of these structures. The deterioration of these armourstones with time may result in the failure of the breakwater. In this study, the quality and durability of the armourstones (mainly limestone, andesite and sandstone) used or to be used in three rubble mound breakwaters are investigated through field and laboratory studies. Among the studied armourstones, the three limestones are found to be good in long-term quality and durability. However, the sandstone displays poor performance, whereas the andesite is marginal. Both static durability index and CIRIA/CUR evaluation successfully predict the long-term durability of the armourstones.
ABSTRACT O ZDEN , U.A. and T OPAL , T., 2007.土耳其黑海碎石堆防波堤装甲石质量评估。Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 190 - 194.澳大利亚黄金海岸，ISSN 0749.0208 黑海海岸线是土耳其的危险区域，尤其是在冬季，因为波浪作用占主导地位。因此，用作船舶庇护所的碎石堆防波堤是至关重要的建筑，尤其是对渔民而言。防波堤的建造需要优质耐用的铠装石。由于瓦砾堆防波堤的性质，在建造这些结构时需要使用各种尺寸和类型的铠装石。随着时间的推移，这些铠甲石的老化可能会导致防波堤失效。本研究通过实地考察和实验室研究，对三座碎石堆防波堤使用或将要使用的铠装石（主要是石灰岩、安山岩和砂岩）的质量和耐久性进行了调查。研究发现，在所研究的铠装石中，三种石灰岩的长期质量和耐久性较好。然而，砂岩的性能较差，而安山岩的性能较差。静态耐久性指数和 CIRIA/CUR 评估都能成功预测铠装石的长期耐久性。
{"title":"Quality Assessment of the Armourstones for Some Black Sea Rubble Mound Breakwaters, Turkey","authors":"U. A. Ozden, T. Topal","doi":"10.2112/jcr-si50-037.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-037.1","url":null,"abstract":"ABSTRACT O ZDEN , U.A. and T OPAL , T., 2007. Quality assessment of the armourstones for some Black Sea rubble mound breakwaters, Turkey. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 190 – 194. Gold Coast, Australia, ISSN 0749.0208 The Black Sea coastline is a hazardous region in Turkey, especially in winter, due to the dominant wave action. Therefore, rubble mound breakwaters used as ship shelters are vital structures, especially for the fishermen. Construction of the breakwater requires good quality, durable armourstones. Due to the nature of the rubble mound breakwaters, armourstones of various sizes and types are used in the construction of these structures. The deterioration of these armourstones with time may result in the failure of the breakwater. In this study, the quality and durability of the armourstones (mainly limestone, andesite and sandstone) used or to be used in three rubble mound breakwaters are investigated through field and laboratory studies. Among the studied armourstones, the three limestones are found to be good in long-term quality and durability. However, the sandstone displays poor performance, whereas the andesite is marginal. Both static durability index and CIRIA/CUR evaluation successfully predict the long-term durability of the armourstones.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"56 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Field measurements of salinity from 1978 to 1984 are used to investigate the horizontal structure of the Pearl River buoyant plume during high river discharge. According to the characteristics of horizontal salinity distribution in summer, buoyant plumes are classified into four types - offshore bugle spreading (Typel), west alongshore spreading (TypeII), East offshore spreading (Type III), western and eastern alongshore spreading (Type IV). It is found that the plume shapes vary with time, presenting obvious monthly and annual variations and TypeIIalways occur in June, while in July the plume type has very high probability belong to Type III which controlled by river discharge and local wind.
{"title":"Horizontal Characteristics of Buoyant Plume off the Pearl River Estuary during Summer","authors":"Suying Ou, Hong Zhang, Dongxiao Wang, Jieyin He","doi":"10.2112/jcr-si50-123.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-123.1","url":null,"abstract":"Field measurements of salinity from 1978 to 1984 are used to investigate the horizontal structure of the Pearl River buoyant plume during high river discharge. According to the characteristics of horizontal salinity distribution in summer, buoyant plumes are classified into four types - offshore bugle spreading (Typel), west alongshore spreading (TypeII), East offshore spreading (Type III), western and eastern alongshore spreading (Type IV). It is found that the plume shapes vary with time, presenting obvious monthly and annual variations and TypeIIalways occur in June, while in July the plume type has very high probability belong to Type III which controlled by river discharge and local wind.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"64 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Emrah Ceyhan, Partha Basuchowdhuri, T. Judeh, S. Ou, B. Estrade, T. Kosar
Given the aftermaths of Hurricane Katrina in New Orleans and the surrounding parishes, the need to predict tropical storms and hurricanes has increased multifold. Accurate predictions may assist decision makers to implement appropriate evacuation plans necessary for the wellbeing of citizens. Coastal modeling is a key tool used to foresee hurricanes, storm surge, and flooding. Of the many models implemented, ADCIRC, a project of the University of North Carolina, seems to hold much promise. Our objectives in this study were multifold. First, we ascertained the current limitations of the ADCIRC model. We achieved this goal through a variety of means including ADCIRC benchmarks on single and multiple clusters as well as a gprof profile of ADCIRC on a single cluster. Then, based on the information obtained from these efforts, we suggested appropriate improvements to optimize ADCIRC. With the achievement of these objectives, we hope ADCIRC will become a vital tool in developing accurate evacuation plans under duress that will aid in saving a countless number of lives.
{"title":"Towards a faster and improved ADCIRC (ADvanced Multi-Dimensional CIRCulation) model","authors":"Emrah Ceyhan, Partha Basuchowdhuri, T. Judeh, S. Ou, B. Estrade, T. Kosar","doi":"10.2112/jcr-si50-175.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-175.1","url":null,"abstract":"Given the aftermaths of Hurricane Katrina in New Orleans and the surrounding parishes, the need to predict tropical storms and hurricanes has increased multifold. Accurate predictions may assist decision makers to implement appropriate evacuation plans necessary for the wellbeing of citizens. Coastal modeling is a key tool used to foresee hurricanes, storm surge, and flooding. Of the many models implemented, ADCIRC, a project of the University of North Carolina, seems to hold much promise. Our objectives in this study were multifold. First, we ascertained the current limitations of the ADCIRC model. We achieved this goal through a variety of means including ADCIRC benchmarks on single and multiple clusters as well as a gprof profile of ADCIRC on a single cluster. Then, based on the information obtained from these efforts, we suggested appropriate improvements to optimize ADCIRC. With the achievement of these objectives, we hope ADCIRC will become a vital tool in developing accurate evacuation plans under duress that will aid in saving a countless number of lives.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"42 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140368505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamics of Intertidal Gravel Dunes","authors":"J. J. Williams, P. A. Carling, P. S. Bell","doi":"10.2112/jcr-si50-127.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-127.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"5 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：