Journal of Integrated Coastal Zone Management最新文献_第4页

Experimental and numerical simulations of oblique extreme wave conditions in front of a breakwater's trunk and round head 防波堤干圆头前斜极波条件的实验与数值模拟

Journal of Integrated Coastal Zone Management Pub Date : 2021-06-01 DOI: 10.5894/rgci-n294

R. F. Carvalho, J. Santos, G. Ojeda, M. Beg, P. Lopes, J. Fortes, J. Lara

{"title":"Experimental and numerical simulations of oblique extreme wave conditions in front of a breakwater's trunk and round head","authors":"R. F. Carvalho, J. Santos, G. Ojeda, M. Beg, P. Lopes, J. Fortes, J. Lara","doi":"10.5894/rgci-n294","DOIUrl":"https://doi.org/10.5894/rgci-n294","url":null,"abstract":": Climate change studies already reported sea level rise as an accepted scenario, which induces changes in nearshore wave conditions. A large range of new experiences including water level, run-up, overtopping, hydrodynamic data for different wave steepnesses and directions was performed in the Leibniz Universität Hannover (LUH) wave basin for a rubble mound breakwater with a slope of 1(V):2(H). This work presents, focusing on oblique extreme wave conditions, numerical simulations of the hydrodynamics in that experiment using OpenFOAM®. Results of the wave generation boundary conditions and their propagation, namely elevation of the water level free-surface and velocity data at specific locations are compared and discussed with data from experimental measurements acquired by acoustic wave gauges and acoustic doppler velocimeter (ADV) / Vectrino equipment. Although an exact match between numerical and laboratory values was not reached, an appropriate incident wave angle and a reasonable amplitude of velocities and water depths was achieved and the same happened to the statistics of those values.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hidrodinâmica da Baía do Lobito. Parte I - Correntes de maré 洛比托湾流体动力学。第一部分-潮流

Journal of Integrated Coastal Zone Management Pub Date : 2021-06-01 DOI: 10.5894/rgci-n406

António Evaristo, Lígia Pinto, Isabella Ascione Kenov, R. Neves

引用次数: 0

Coastal dynamics and protection 海岸动态与保护

Journal of Integrated Coastal Zone Management Pub Date : 2021-06-01 DOI: 10.5894/rgci-n467

F. Taveira-Pinto, P. Rosa-Santos, T. Fazeres-Ferradosa

引用次数: 1

Hidrodinâmica da Baía do Lobito. Parte II - Escoamento Baroclínico 洛比托湾流体动力学。第二部分-斜压流动

Journal of Integrated Coastal Zone Management Pub Date : 2021-06-01 DOI: 10.5894/rgci-n407

António Evaristo, R. Neves, Lígia Pinto, J. Sobrinho

引用次数: 0

Environmental Impacts Systematic Analysis of Ports Disposed Dredged Sediments Techniques 港口疏浚技术的环境影响系统分析

Journal of Integrated Coastal Zone Management Pub Date : 2021-06-01 DOI: 10.5894/rgci-n398

Lorena N. Rosa, D. D. Freitas

引用次数: 0

O Uso do Gastrópode Melampus coffea (Ellobiidae) (Linnaeus, 1758) Como Indicador Ecológico do Estado de Degradação Ambiental de Manguezais 利用咖啡腹足类(Ellobiidae) (Linnaeus, 1758)作为红树林环境退化状况的生态指标

Journal of Integrated Coastal Zone Management Pub Date : 2021-03-01 DOI: 10.5894/rgci-n366

Francisca Cinara Araújo, R. C. Maia

{"title":"O Uso do Gastrópode Melampus coffea (Ellobiidae) (Linnaeus, 1758) Como Indicador Ecológico do Estado de Degradação Ambiental de Manguezais","authors":"Francisca Cinara Araújo, R. C. Maia","doi":"10.5894/rgci-n366","DOIUrl":"https://doi.org/10.5894/rgci-n366","url":null,"abstract":"Em ecossistemas costeiros tropicais, os manguezais são considerados importantes áreas de alimentação, reprodução e abrigo para muitas espécies marinhas, entretanto, a intensa utilização de seus recursos naturais e a pressão antrópica sob áreas costeiras ameaça a existência desses ambientes. O objetivo do presente estudo foi determinar possíveis variações no tamanho e densidade populacional de M. coffea entre manguezais desmatados e conservados, além de relacionar a sua distribuição com os parâmetros estruturais dos bosques como: densidade de árvores, composição específica, altura das árvores, diâmetro acima do peito (DAP) e área basal. Para isso, foram escolhidas três áreas de manguezais desmatadas e três áreas conservadas. Em cada local, foram sorteados três sítios e em cada sítio, foi demarcado um transecto com três parcelas com 100 m² cada. Em cada parcela, foram identificadas as espécies vegetais de mangue, estimada sua altura e medida a circunferência. A seguir, foram coletados todos os indivíduos de M. coffea encontrados que foram medidos quanto à altura, largura e altura da abertura da concha. A maior abundância e os maiores tamanhos de gastrópodes foram registrados nas áreas conservadas. Os resultados da análise indicam uma relação entre M. coffea e a densidade de Rhizophora mangle, a altura e o DAP do bosque. Concluiu-se que a distribuição de M. coffea pode ser influenciada diretamente pela disponibilidade e a qualidade dos recursos das florestas de mangue, podendo ser um indicador ecológico para áreas de manguezais desmatados.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47326601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anthropogenic disturbances and conservation of coastal environments in an oceanic archipelago 海洋群岛海岸环境的人为干扰与保护

Journal of Integrated Coastal Zone Management Pub Date : 2020-12-01 DOI: 10.5894/RGCI-N267

J. Delgado, R. Riera

{"title":"Anthropogenic disturbances and conservation of coastal environments in an oceanic archipelago","authors":"J. Delgado, R. Riera","doi":"10.5894/RGCI-N267","DOIUrl":"https://doi.org/10.5894/RGCI-N267","url":null,"abstract":"Oceanic islands are biotically fragile environments prone to suffer irreversible anthropogenic disturbances. The growth of the human population and the intensive occupation of the coastline are the cause of great ecological pressure on global insular coastal ecosystems. We review the current situation and future scenarios on a paradigmatic oceanic archipelago (Canary Islands, NE Atlantic Ocean), as a case study of the human footprint on marine coastal communities. The role of humans is pivotal, as we directly affect patterns of coastal occupation, pollution, invasive species or fishing. Here we synthesize the information that describes the current situation of the coastal ecosystems of the Canary Islands, indicating the main sources of environmental conflict and impacts. In addition, we review the state of the most relevant or threatened habitats and the taxonomic groups as actors of the main disturbances in the coastal ecosystems of the archipelago. We propose future general scenarios about expected changes, and foreseeable interactions that could occur to transform the coastal environments of the islands, in order to indicate areas susceptible to improvement for the conservation of these ecosystems. Integrative coastal actions are urgently needed for sustainable future scenarios to oppose deleterious trends such as tropicalization, fisheries collapse and extensive coastal degradation due to urbanization and infrastructure construction.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Qualidade da água de três estuários tropicais expostos a diferentes níveis de urbanização 三个热带河口的水质暴露在不同程度的城市化

Journal of Integrated Coastal Zone Management Pub Date : 2020-09-01 DOI: 10.5894/rgci-n284

Regina Célia Macedo do Nascimento, Cibele Rodrigues Costa, Mateus Magarotto, Jacqueline Santos Silva-Cavalcanti, M. F. Costa

{"title":"Qualidade da água de três estuários tropicais expostos a diferentes níveis de urbanização","authors":"Regina Célia Macedo do Nascimento, Cibele Rodrigues Costa, Mateus Magarotto, Jacqueline Santos Silva-Cavalcanti, M. F. Costa","doi":"10.5894/rgci-n284","DOIUrl":"https://doi.org/10.5894/rgci-n284","url":null,"abstract":"Essa situação soma-se a outros impactos da cultura secular de como o desmatamento, escoamento de e ABSTRACT: Estuaries are environments of high biological productivity that provide diverse ecosystem services, such as food or shelter. Its water quality is fundamental for the development and maintenance as close as possible to the original ecological standards that guarantee these services. Thus, this study aimed to compare the water quality of three tropical estuaries with different occupation histories and degrees of urbanization. The Goiana, dissolved oxygen, oxygen saturation, biochemical oxygen demand, turbidity, colour, salinity and total phosphorus. All data were obtained from the Pernambuco State Environmental Agency (CPRH) from 2006 to 2009, as part of its water quality monitoring program. The three estuaries, regardless of their conservation status, are under poor water quality conditions, with high levels of total phosphorus (0.18 mg L -1 Brazilian guidelines) and low dissolved oxygen concentrations (entre 0.0 and 6.7 mg L -1 , present work). Even with seasonal changes and over the years, oxygen levels are often less than 2.0 mg L -1 characterizing hypoxia - possibly helped by high water temperatures (24.5 to 30.0 o C). As a general scenario, even with different urban contribution, the three estuaries need attention regarding water quality. Results reflect the lack of basic sanitation in the three basins, regardless of their degree of urbanization. This situation adds to other impacts from the centuries old sugarcane plantations and milling, such as deforestation, fertilizer runoff, soil leaching and other polluting loads.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Modelling the morphodynamics in the vicinity of a submerged detached breakwater 水下分离式防波堤附近的形态动力学模拟

Journal of Integrated Coastal Zone Management Pub Date : 2020-06-01 DOI: 10.5894/rgci-n302

M. F. Oliveira, Filipa S. B. F. Oliveira, A. Trigo-Teixeira

{"title":"Modelling the morphodynamics in the vicinity of a submerged detached breakwater","authors":"M. F. Oliveira, Filipa S. B. F. Oliveira, A. Trigo-Teixeira","doi":"10.5894/rgci-n302","DOIUrl":"https://doi.org/10.5894/rgci-n302","url":null,"abstract":"The importance that coastal zones assume in Portugal implies a necessity for adequate responses to erosion-associated risks. One example is the coastal stretch located between the Mondego and Lis rivers’ inlets, which has been a frequent target of coastal protection measures, such as the construction of groins and seawalls. A possible alternative measure is a submerged detached breakwater, which can provide beach protection and enhance local surfing conditions. Thus, in this study the morphodynamics as a result of the wave breakwater bottom interaction in the active zone located in the vicinity of the structure was analyzed using two numerical models: a two dimensional, depth-averaged (2DH), Delft3D, and a one-line (coastline), LITLINE. The models were applied considering typical hydrodynamic forcing conditions (mean and most frequent waves) and morpho-sedimentologic conditions of the site. The sensitivity of the breakwater’s parameters to the beach morphological response was analysed using Delft3D. The coastline evolution was compared with LITLINE’s prediction. Delft3D is able to reproduce the dominant circulation patterns in the structure’s vicinity, and between the structure and the coastline, which influence its evolution. On the contrary, the LITLINE’s model simplifications do not enable a representation of the physical phenomena which dominate the breakwater’s vicinity.","PeriodicalId":37892,"journal":{"name":"Journal of Integrated Coastal Zone Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71208198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nota Editorial - Gestão e planeamento integrado das zonas costeiras da CPLP - Parte 1 社论- CPLP海岸带综合管理和规划-第1部分

Journal of Integrated Coastal Zone Management Pub Date : 2020-06-01 DOI: 10.5894/rgci-n390

F. Taveira-Pinto, P. Rosa-Santos, T. Fazeres-Ferradosa

引用次数: 3