Pub Date : 2023-11-23DOI: 10.1007/s11852-023-00996-2
Tolulope Emmanuel Oginni, Elnalee Buyagao Baguya, Rasheed Babatunde Adesina, Charles Izuma Addey, Abidemi Bashiru Folorunsho, Oludolapo Ibrahim Olanrewaju
SWASH (Simulating WAves till SHore) is a non-hydrostatic numerical model used to investigate the reflection coefficient of three wavelike trapezoidal submerged breakwaters (Structure A, B, and C) in this study. The breakwater was configured in sections of crest and trough; Structure A has its crest and trough section on the sea-bed. Structure B was only a crest section placed on the sea-bed, while Structure C’s crest section is on the sea-bed with its trough section trenching into the sea-bed. Regular wave is propagated over the structures to examine their differences in reflecting wave energy. The result shows that Structure C of the three wavelike trapezoidal submerged breakwaters can effectively reflect more waves while covering less area on the sea-bed. The possibility of a dual peak on the resonant of the reflection coefficient is seen for all the three wavelike trapezoidal submerged breakwaters with a shift in their prominent peak along with the dual peak position. The variation of breakwater height and top widths directly affects the peak value of the reflection coefficient. However, the breakwater height will shift the positioning of the peak values occurrence.
SWASH (simulation WAves till SHore)是一个非流体静力数值模型，用于研究三个波浪形梯形水下防波堤(结构a、B和C)的反射系数。防波堤分为波峰和波谷两部分;构造A在海床上有其波峰和波谷剖面。构造B只是一个位于海床上的波峰剖面，而构造C的波峰剖面位于海床上，其波谷剖面切入海床。规则波在结构上传播，以检查它们在反射波能量方面的差异。结果表明，三种波浪形梯形沉水防波堤的C型结构能有效地反射较多的波浪，同时覆盖较少的海床面积。三个波浪形梯形水下防波堤的反射系数共振都可能出现双峰，其突出峰随双峰位置的变化而变化。防波堤高度和顶宽的变化直接影响反射系数的峰值。但是，防波堤高度会改变峰值发生的位置。
{"title":"Reflection coefficient of regular waves over wavelike trapezoidal submerged breakwater using non-hydrostatic numerical model","authors":"Tolulope Emmanuel Oginni, Elnalee Buyagao Baguya, Rasheed Babatunde Adesina, Charles Izuma Addey, Abidemi Bashiru Folorunsho, Oludolapo Ibrahim Olanrewaju","doi":"10.1007/s11852-023-00996-2","DOIUrl":"https://doi.org/10.1007/s11852-023-00996-2","url":null,"abstract":"<p>SWASH (Simulating WAves till SHore) is a non-hydrostatic numerical model used to investigate the reflection coefficient of three wavelike trapezoidal submerged breakwaters (Structure A, B, and C) in this study. The breakwater was configured in sections of crest and trough; Structure A has its crest and trough section on the sea-bed. Structure B was only a crest section placed on the sea-bed, while Structure C’s crest section is on the sea-bed with its trough section trenching into the sea-bed. Regular wave is propagated over the structures to examine their differences in reflecting wave energy. The result shows that Structure C of the three wavelike trapezoidal submerged breakwaters can effectively reflect more waves while covering less area on the sea-bed. The possibility of a dual peak on the resonant of the reflection coefficient is seen for all the three wavelike trapezoidal submerged breakwaters with a shift in their prominent peak along with the dual peak position. The variation of breakwater height and top widths directly affects the peak value of the reflection coefficient. However, the breakwater height will shift the positioning of the peak values occurrence.</p>","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"49 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-04DOI: 10.1007/s11852-023-00992-6
Chloé Bentze, Helene Burningham, Emer Magee
{"title":"Down the rabbit-hole: satellite-based analysis of spatiotemporal patterns in wild European rabbit burrows for better coastal dune management","authors":"Chloé Bentze, Helene Burningham, Emer Magee","doi":"10.1007/s11852-023-00992-6","DOIUrl":"https://doi.org/10.1007/s11852-023-00992-6","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"4 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135774261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-27DOI: 10.1007/s11852-023-00991-7
Millat Blanc, Raúl O. Martínez-Rincón
{"title":"Global scale study of the environmental preferences and distribution of Orcinus orca","authors":"Millat Blanc, Raúl O. Martínez-Rincón","doi":"10.1007/s11852-023-00991-7","DOIUrl":"https://doi.org/10.1007/s11852-023-00991-7","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136262322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-26DOI: 10.1007/s11852-023-00990-8
Wasana de Silva, Mala Damayanthi Amarasinghe
{"title":"Coastal protection function of mangrove ecosystems: a case study from Sri Lanka","authors":"Wasana de Silva, Mala Damayanthi Amarasinghe","doi":"10.1007/s11852-023-00990-8","DOIUrl":"https://doi.org/10.1007/s11852-023-00990-8","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136381751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-23DOI: 10.1007/s11852-023-00984-6
Rafael C. Carvalho, Colin D. Woodroffe
Abstract Coastal compartments provide a hierarchical framework to manage beaches and coastal ecosystems in Australia. This study examines the individual behaviour of three adjacent beaches within Shoalhaven Bight, a secondary compartment on the south coast of New South Wales (NSW). The Shoalhaven River discharges intermittently into the northernmost of the beaches, and a fluvial component is detectable within beach and foredune sands. The distribution and orientation of headlands constrains dispersal of fluvial sediments, and results in lower wave-energy conditions further south, implying limited sand transport from one beach, or tertiary compartment, to another. Two years of monthly subaerial surveys across ten different profiles and modelled storm-wave conditions during the major storms, were used to compare the response of beach volume and shoreline position. The greatest changes in volume were observed near Shoalhaven Heads and the northern ends of Culburra and Warrain-Currarong beaches. Results indicate the distinct individual response of neighbouring beaches over the two-year period, in contrast to general trends in beach behavior that might be inferred from long-term regional monitoring programs. However, they also demonstrate the limitations of short-term observations in comparison to those longer-term studies. The NSW beach systems of are some of the best understood in the world in terms of regional behaviour, as a consequence of several decades of surveys on key beaches. However, more focused local monitoring programs may be needed to establish detailed coastal sand transport, and an understanding of intermittent delivery of fluvial sand and longshore inputs and outputs, within and between different compartments.
{"title":"Coastal compartments: the role of sediment supply and morphodynamics in a beach management context","authors":"Rafael C. Carvalho, Colin D. Woodroffe","doi":"10.1007/s11852-023-00984-6","DOIUrl":"https://doi.org/10.1007/s11852-023-00984-6","url":null,"abstract":"Abstract Coastal compartments provide a hierarchical framework to manage beaches and coastal ecosystems in Australia. This study examines the individual behaviour of three adjacent beaches within Shoalhaven Bight, a secondary compartment on the south coast of New South Wales (NSW). The Shoalhaven River discharges intermittently into the northernmost of the beaches, and a fluvial component is detectable within beach and foredune sands. The distribution and orientation of headlands constrains dispersal of fluvial sediments, and results in lower wave-energy conditions further south, implying limited sand transport from one beach, or tertiary compartment, to another. Two years of monthly subaerial surveys across ten different profiles and modelled storm-wave conditions during the major storms, were used to compare the response of beach volume and shoreline position. The greatest changes in volume were observed near Shoalhaven Heads and the northern ends of Culburra and Warrain-Currarong beaches. Results indicate the distinct individual response of neighbouring beaches over the two-year period, in contrast to general trends in beach behavior that might be inferred from long-term regional monitoring programs. However, they also demonstrate the limitations of short-term observations in comparison to those longer-term studies. The NSW beach systems of are some of the best understood in the world in terms of regional behaviour, as a consequence of several decades of surveys on key beaches. However, more focused local monitoring programs may be needed to establish detailed coastal sand transport, and an understanding of intermittent delivery of fluvial sand and longshore inputs and outputs, within and between different compartments.","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"4 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135405369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1007/s11852-023-00988-2
Nurdan Akakçe, Aysun Uğur Görgün, İnci Tüney Kizilkaya, Berkay Camgöz, Nevra Öztürk Atay, İlker Sert
{"title":"Evaluation of TENORM radionuclides and trace element levels by using seagrass","authors":"Nurdan Akakçe, Aysun Uğur Görgün, İnci Tüney Kizilkaya, Berkay Camgöz, Nevra Öztürk Atay, İlker Sert","doi":"10.1007/s11852-023-00988-2","DOIUrl":"https://doi.org/10.1007/s11852-023-00988-2","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136032464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Marine aquarium trade: an open door for invasions in Iceland","authors":"Joana Micael, Saeunn Sigurjónsdóttir, Sindri Gíslason","doi":"10.1007/s11852-023-00986-4","DOIUrl":"https://doi.org/10.1007/s11852-023-00986-4","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136033499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.1007/s11852-023-00983-7
Nguyen Tan Phong, Le Tan Loi
{"title":"Extent of reference to science and the efficacy of coastal management policies: Insights from the Vietnamese Mekong Delta","authors":"Nguyen Tan Phong, Le Tan Loi","doi":"10.1007/s11852-023-00983-7","DOIUrl":"https://doi.org/10.1007/s11852-023-00983-7","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134977669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-29DOI: 10.1007/s11852-023-00981-9
Fazel Amiri, Mohammad Shabani
{"title":"The effects of heavy metal concentration in two healthy and damaged stands of Mangrove (Avicennia marina) ecosystem in Nai Band National Park, South coast of Iran","authors":"Fazel Amiri, Mohammad Shabani","doi":"10.1007/s11852-023-00981-9","DOIUrl":"https://doi.org/10.1007/s11852-023-00981-9","url":null,"abstract":"","PeriodicalId":48909,"journal":{"name":"Journal of Coastal Conservation","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135244572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号