{"title":"Beach Erosion Trend Measurement: A Comparison of Trend Indicators","authors":"D. J. Hanslow","doi":"10.2112/jcr-si50-111.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-111.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"61 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366451","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}
H.S. Yoon, T.S. Kang, S.Y. Nam, J.T. Kim, J.H. Park
{"title":"Measuring coastline morphodynamics using video-based techniques at Haeundae Beach, South Korea","authors":"H.S. Yoon, T.S. Kang, S.Y. Nam, J.T. Kim, J.H. Park","doi":"10.2112/jcr-si50-200.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-200.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"59 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366510","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}
Gilles Sennes, B. Castelle, X. Bertin, H. Mirfenderesk, R. Tomlinson
SENNES, G., CASTELLE, B., BERTIN, X., MIRFENDERESK, H. AND TOMLINSON, R.B., 2007. Modelling of the Gold Coast Seaway tidal inlet, Australia. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1086 – 1091. Gold Coast, Australia, ISSN 0749.0208 The Seaway entrance is a tidal inlet located on the Gold Coast (Queensland, Australia). Before the 80s, the entrance was highly variable in terms of inlet location and sand bar characteristics. The Seaway stabilisation with two training walls combined with an artificial sand bypassing system were completed in 1986 with the aims of fixing the entrance, maintaining a safe navigable channel, preventing shoreline erosion to the north and a buildup of sand to the south. Despite these training works, the dynamics of the Seaway is still poorly understood: channel infilling problems and navigation issues remain. For these reasons, the present study aims to develop a comprehensive model of the entrance to be used for further dredging and training work issues. The present investigation is carried out in two stages. The first stage is based on historic aerial photograph analysis of the Seaway before training works. It shows that the mouth was periodically driven northward by the longshore drift, with an average cycle time of 10 years. The second stage is based on numerical modelling after training works. Refined Delft3D modelling is undertaken with a 2DH approach on the Seaway area, taking into account the training walls and the sand bypassing system. This local model is coupled with MIKE21 implemented on a regional scale to provide accurate tide and flow forcing at the boundaries. After calibration, the analysis of flow patterns shows that the Gold Coast Seaway is ebb-dominated and that the more intense flow velocities are observed in the northern channel. Morphological evolution of the inlet is also investigated with a qualitative approach. Results indicate the pathways and rate of the sand movement within the tidal inlet in its current configuration and provide information about a planned 400 m extension of the southern training wall. A significant calibration work, involving sediment transport and bathymetry measurement, is required for the model to be used as a comprehensive tool for further dredging and dumping strategies within the entrance.
Sennes, G., Castelle, B., Bertin, X., Mirfenderesk, H. and Tomlinson, R.B., 2007.Modelling of the Gold Coast Seaway tidal inlet, Australia.Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1086 - 1091.澳大利亚黄金海岸，ISSN 0749.0208 Seaway 入口是位于黄金海岸（澳大利亚昆士兰州）的一个潮汐入口。上世纪 80 年代以前，该入口在入口位置和沙洲特征方面变化很大。1986 年完成了海道加固工程，包括两道加固墙和一个人工海沙旁路系统，目的是固定入口，保持安全的通航航道，防止北面海岸线被侵蚀和南面海沙堆积。尽管进行了这些整治工程，但人们对该航道的动态仍然知之甚少：航道填充问题和航行问题依然存在。因此，本研究旨在开发一个入口综合模型，以用于进一步的疏浚和培训工作。本次调查分两个阶段进行。第一阶段是基于对培训工程前航道的历史航拍照片分析。结果表明，海口被沿岸漂流定期向北推进，平均周期为 10 年。第二阶段基于训练工程后的数值模拟。采用二维水深法对海口地区进行了 Delft3D 精细建模，其中考虑到了训练墙和绕砂系统。该本地模型与在区域范围内实施的 MIKE21 模型相结合，可在边界提供准确的潮汐和水流动力。校准后，对水流模式的分析表明，黄金海岸航道以退潮为主，北航道的流速较大。此外，还采用定性方法研究了入海口的形态演变。研究结果表明了潮汐入海口内沙子运动的路径和速度，并提供了有关计划中的南侧训练墙 400 米延伸段的信息。需要进行大量的校准工作，包括沉积物运移和水深测量，才能将模型用作入口处进一步疏浚和倾倒策略的综合工具。
{"title":"Modelling of the Gold Coast Seaway tidal inlet, Australia","authors":"Gilles Sennes, B. Castelle, X. Bertin, H. Mirfenderesk, R. Tomlinson","doi":"10.2112/jcr-si50-196.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-196.1","url":null,"abstract":"SENNES, G., CASTELLE, B., BERTIN, X., MIRFENDERESK, H. AND TOMLINSON, R.B., 2007. Modelling of the Gold Coast Seaway tidal inlet, Australia. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1086 – 1091. Gold Coast, Australia, ISSN 0749.0208 The Seaway entrance is a tidal inlet located on the Gold Coast (Queensland, Australia). Before the 80s, the entrance was highly variable in terms of inlet location and sand bar characteristics. The Seaway stabilisation with two training walls combined with an artificial sand bypassing system were completed in 1986 with the aims of fixing the entrance, maintaining a safe navigable channel, preventing shoreline erosion to the north and a buildup of sand to the south. Despite these training works, the dynamics of the Seaway is still poorly understood: channel infilling problems and navigation issues remain. For these reasons, the present study aims to develop a comprehensive model of the entrance to be used for further dredging and training work issues. The present investigation is carried out in two stages. The first stage is based on historic aerial photograph analysis of the Seaway before training works. It shows that the mouth was periodically driven northward by the longshore drift, with an average cycle time of 10 years. The second stage is based on numerical modelling after training works. Refined Delft3D modelling is undertaken with a 2DH approach on the Seaway area, taking into account the training walls and the sand bypassing system. This local model is coupled with MIKE21 implemented on a regional scale to provide accurate tide and flow forcing at the boundaries. After calibration, the analysis of flow patterns shows that the Gold Coast Seaway is ebb-dominated and that the more intense flow velocities are observed in the northern channel. Morphological evolution of the inlet is also investigated with a qualitative approach. Results indicate the pathways and rate of the sand movement within the tidal inlet in its current configuration and provide information about a planned 400 m extension of the southern training wall. A significant calibration work, involving sediment transport and bathymetry measurement, is required for the model to be used as a comprehensive tool for further dredging and dumping strategies within the entrance.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"76 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366648","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":"2D Nonlinear wave body interaction using Semi-ALE","authors":"V. Sriram, S. Sannasiraj, V. Sundar","doi":"10.2112/jcr-si50-077.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-077.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"33 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366981","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}
A. Houghton, R. Whitehouse, C. Calkoen, F. Wouters
{"title":"A Framework for the Uptake of Satellite Derived Bathymetric Data Services in Coastal Zone Management","authors":"A. Houghton, R. Whitehouse, C. Calkoen, F. Wouters","doi":"10.2112/jcr-si50-033.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-033.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"7 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367003","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":"Change detection at Conde municipality coastal zone, State of Bahia, Brazil - using medium resolution satellite data","authors":"R.X.S. Nogueira, J.M.L. Dominguez","doi":"10.2112/jcr-si50-007.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-007.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"61 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367168","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}
MACHADO, A., ROCHA, F., GOMES, C. and DIAS, A., 2007. Distribution and Composition of Suspended Particulate Matter in Guadiana Estuary (Southwestern Iberian Peninsula). Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1040 – 1045. Gold Coast, Australia, ISSN 0749.0208 The construction of the Alqueva Dam may have a significant impact on the suspended sediment concentration (SSC) of the Guadiana River, its estuary and coastal zone. Suspended particulate matter (SPM) was collected along the Guadiana Estuary at distinct river flow and tidal conditions. 84 samples of SPM were collected during low and high spring tides, in November 2000 and February 2001, respectively. During November 2000, in lowrunoff conditions, the mean SSC value was 32.45 mg/l and the highest values were found at 20-30 km, upstream of the river mouth. However, after short periods of heavy rain, the SSC increased in the water column and the highest values (501.6 mg/l) were found near the river mouth. In what concerns the mineralogical composition, the main minerals in SPM are phyllosilicates, quartz, plagioclases. Illite, kaolinite, chlorite, smectite and irregular illite-smectite mixed-layers are the main clay minerals. In low-runoff, the increment of quartz and illite concentrations seems to be associated to the entrance of saline water in the estuary and, consequently, to floodtide flows. Kaolinite relatively to illite, exhibits an opposite behavior, indicating that its source is largely continental. The total contents of phyllosilicates and, particularly, chlorite enrichment during the flood-situation seems to be associated to low-tide flows being exported to the adjacent shelf. This study confirms the importance of energetic events, in transferring particles to deeper domains, while during low runoff the main trend is the import from the adjacent ocean.
MACHADO, A., ROCHA, F., GOMES, C. and DIAS, A., 2007.Guadiana 河口（伊比利亚半岛西南部）悬浮颗粒物质的分布与构成。Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1040 - 1045.澳大利亚黄金海岸，ISSN 0749.0208 阿尔克瓦大坝的建设可能会对瓜迪亚纳河及其河口和海岸带的悬浮沉积物浓度 （SSC）产生重大影响。在不同的河流流量和潮汐条件下，沿瓜迪亚纳河口采集了悬浮颗粒物 (SPM)。分别在 2000 年 11 月和 2001 年 2 月的春潮低潮期和高潮期采集了 84 个 SPM 样本。2000 年 11 月，在径流量较小的情况下，平均 SSC 值为 32.45 毫克/升，最高值出现在河口上游 20-30 公里处。然而，短时间的暴雨过后，水体中的 SSC 值上升，最高值（501.6 毫克/升）出现在河口附近。在矿物成分方面，SPM 中的主要矿物为植硅酸盐、石英、斜长石。伊利石、高岭石、绿泥石、直闪石和不规则的伊利石-直闪石混合层是主要的粘土矿物。在径流量较小的情况下，石英和伊利石浓度的增加似乎与河口盐水的进入有关，因此也与洪潮的流动有关。相对于伊利石而言，高岭石的表现恰恰相反，表明其主要来源于大陆。植硅体的总含量，尤其是绿泥石在洪水情况下的富集，似乎与向邻近大陆架输出的低潮流有关。这项研究证实了高能事件在将颗粒转移到更深领域方面的重要性，而在低径流期间，主要趋势是从邻近海洋进口。
{"title":"Distribution and Composition of Suspended Particulate Matter in Guadiana Estuary (Southwestern Iberian Peninsula)","authors":"A. Machado, F. Rocha, C. Gomes, J. Dias","doi":"10.2112/jcr-si50-188.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-188.1","url":null,"abstract":"MACHADO, A., ROCHA, F., GOMES, C. and DIAS, A., 2007. Distribution and Composition of Suspended Particulate Matter in Guadiana Estuary (Southwestern Iberian Peninsula). Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1040 – 1045. Gold Coast, Australia, ISSN 0749.0208 The construction of the Alqueva Dam may have a significant impact on the suspended sediment concentration (SSC) of the Guadiana River, its estuary and coastal zone. Suspended particulate matter (SPM) was collected along the Guadiana Estuary at distinct river flow and tidal conditions. 84 samples of SPM were collected during low and high spring tides, in November 2000 and February 2001, respectively. During November 2000, in lowrunoff conditions, the mean SSC value was 32.45 mg/l and the highest values were found at 20-30 km, upstream of the river mouth. However, after short periods of heavy rain, the SSC increased in the water column and the highest values (501.6 mg/l) were found near the river mouth. In what concerns the mineralogical composition, the main minerals in SPM are phyllosilicates, quartz, plagioclases. Illite, kaolinite, chlorite, smectite and irregular illite-smectite mixed-layers are the main clay minerals. In low-runoff, the increment of quartz and illite concentrations seems to be associated to the entrance of saline water in the estuary and, consequently, to floodtide flows. Kaolinite relatively to illite, exhibits an opposite behavior, indicating that its source is largely continental. The total contents of phyllosilicates and, particularly, chlorite enrichment during the flood-situation seems to be associated to low-tide flows being exported to the adjacent shelf. This study confirms the importance of energetic events, in transferring particles to deeper domains, while during low runoff the main trend is the import from the adjacent ocean.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"13 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367454","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":"Wave-Current Interaction Involving Iteration between Finite Element Wave and Current Models","authors":"C. Newell, T. Mullarkey","doi":"10.2112/jcr-si50-144.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-144.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"49 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367941","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}
VAHTMAE, E., KUTSER, T., 2007. Mapping bottom type and water depth in shallow coastal waters with satellite remote sensing. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 185 – 189. Gold Coast, Australia, ISSN 0749.0208 Species composition of benthic macroalgal cover and the changes therein are indicators of the trophic state of aquatic ecosystems. On the other hand, mapping and knowledge of water depth in shallow water areas, not accessible by hydrographical ships, is important for several reasons. This study assessed the suitability of high spatial resolution multispectral and medium spatial resolution hyperspectral data for mapping water depth and benthic macroalgal cover in shallow coastal waters of the Baltic Sea. Results of this study indicate that use of multispectral satellite data with high spatial resolution is preferable to using hyperspectral medium resolution data in mapping benthic macroalgal cover in areas where the spatial heterogeneity is very high. In case of a single image and availability of in situ data, multispectral high spatial resolution (2.4 m) satellite QuickBird can provide more detailed information about benthic cover than was assumed based on the shape of reflectance spectra of different bottom types and spectral resolution of the sensor. Depth maps of shallow (less than 3 metres) waters proved to be reliable except in turbid water areas with no bottom visibility.
Vahtmae, E., Kutser, T., 2007.The ocean and the ocean of the ocean.海岸研究学报》，SI 50（第九届国际海岸研讨会论文集），185-189。在这种情况下，对水生生态系统的研究就显得尤为重要。另一方面，由于多种原因，绘制和了解水文船无法到达的浅水区的水深非常重要。本研究评估了高空间分辨率多光谱和中等空间分辨率高光谱数据在绘制波罗的海沿岸浅水区水深和底栖大型藻类覆盖图方面的适用性。研究结果表明，在空间异质性很高的地区，使用高空间分辨率的多光谱卫星数据比使用中分辨率的高光谱数据更适合绘制底栖大型藻类覆盖图。在有单幅图像和原位数据的情况下，多光谱高空间分辨率（2.4 米）卫星 QuickBird 可提供比根据不同底部类型的反射光谱形状和传感器光谱分辨率假设的更详细的底栖覆盖信息。事实证明，浅水（小于 3 米）水域的深度图是可靠的，除非是在看不到海底的浑浊水域。
{"title":"Mapping Bottom Type and Water Depth in Shallow Coastal Waters with Satellite Remote Sensing","authors":"T. Kutser","doi":"10.2112/jcr-si50-036.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-036.1","url":null,"abstract":"VAHTMAE, E., KUTSER, T., 2007. Mapping bottom type and water depth in shallow coastal waters with satellite remote sensing. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 185 – 189. Gold Coast, Australia, ISSN 0749.0208 Species composition of benthic macroalgal cover and the changes therein are indicators of the trophic state of aquatic ecosystems. On the other hand, mapping and knowledge of water depth in shallow water areas, not accessible by hydrographical ships, is important for several reasons. This study assessed the suitability of high spatial resolution multispectral and medium spatial resolution hyperspectral data for mapping water depth and benthic macroalgal cover in shallow coastal waters of the Baltic Sea. Results of this study indicate that use of multispectral satellite data with high spatial resolution is preferable to using hyperspectral medium resolution data in mapping benthic macroalgal cover in areas where the spatial heterogeneity is very high. In case of a single image and availability of in situ data, multispectral high spatial resolution (2.4 m) satellite QuickBird can provide more detailed information about benthic cover than was assumed based on the shape of reflectance spectra of different bottom types and spectral resolution of the sensor. Depth maps of shallow (less than 3 metres) waters proved to be reliable except in turbid water areas with no bottom visibility.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"38 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140368383","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":"Turbulent measurements in the surf zone suspension","authors":"D. Hurther, H. Michallet, X. Gondran","doi":"10.2112/jcr-si50-058.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-058.1","url":null,"abstract":"","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":"66 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140364820","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}
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