Journal of Coastal Research最新文献_第10页

Multi-decadal Evolution and North Atlantic Oscillation Influences on the Dynamics of the Danube Delta Shoreline 多瑙河三角洲海岸线的十年演变和北大西洋涛动对其动态的影响

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-031.1

A. Vespremeanu‐Stroe, Ş. Constantinescu, F. Tătui, L. Giosan

{"title":"Multi-decadal Evolution and North Atlantic Oscillation Influences on the Dynamics of the Danube Delta Shoreline","authors":"A. Vespremeanu‐Stroe, Ş. Constantinescu, F. Tătui, L. Giosan","doi":"10.2112/jcr-si50-031.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-031.1","url":null,"abstract":"VESPREMEANU-STROE, A.,CONSTANTINESCU, Ş., TĂTUI, F. and GIOSAN, L., 2007. Multi-decadal Evolution and North Atlantic Oscillation Influences on the Dynamics of the Danube Delta Shoreline. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 157 – 162. Gold Coast, Australia, ISSN 0749.0208 A comprehensive analysis of data collected over the last five decades on the Danube delta coast (topographic maps, satellite imagery, GPS surveys and beach profiles) revealed two different shoreline dynamics patterns: (1) high mobility during 1961-1979 interval with high retreating and; (2) advancing rates and low mobility afterwards (1979-2006). The divergence zones in the longshore sediment transport system experienced the highest rates of retreat (~20 m/yr and ~10 m/yr in the first/second time interval), whereas the shoreline advanced fastest along the coast of active lobes (i.e., Chilia and Sf. Gheorghe lobes). During the second interval the decrease of shoreline changes rates was similar for the erosive beaches (with 55-66%) and non-uniform for the accretionary coasts (20-61% for open beaches and 80% for the sheltered secondary deltas). Wind data analysis reveals a good connection between multi-decadal winter storm frequency along the Danube delta coast and negative NAO phases (r = -0.76). The results of the present study clearly show that shoreline changes at decadal time scales are also ultimately driven by the NAO which controls the storminess on the Danube delta coast. ADDITIONAL INDEX WORDS: shoreline retreat/advance, longshore sediment transport (LST), storms, multi-decadal climate variability, Black Sea","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140365014","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}

引用次数: 42

Exploring Marsh Surface Canopy Dynamics – A Discussion of Laboratory Methods. 探索沼泽表面冠层动态--实验室方法讨论。

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-145.1

G.W. Graham, S.J. Bass, W.A.M. Nimmo Smith, A.J. Manning

引用次数: 0

Australian Rip Systems – Friend or Foe? 澳大利亚 Rip 系统--是敌是友？

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-002.1

A. Short

引用次数: 0

Hydrodynamics and Water Quality Modelling for the Ecosystem of the Ariake Sea, Kyushu, Japan 日本九州有明海生态系统的水动力学和水质模拟

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-149.1

N. T. Minh Hang, H. Araki, N. Cao Don, H. Yamanishi, K. Koga

引用次数: 0

Measured Cross-Shore and Vertical Variations in Grain Size, Sorting and Composition in Suspended Sediments Transported by Longshore Currents 测量到的长岸流输送的悬浮沉积物中粒径、分选和成分的跨岸和垂直变化

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-116.1

L.S. Esteves, J.J. Williams, M. Lisniowski, H. Perotto

引用次数: 0

The Use of Video Systems to Measure Run-up on Beaches 使用视频系统测量海滩的上升趋势

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-041.1

S. Salmon, K. R. Bryan, G. Coco

引用次数: 0

Ground based remote sensing as a tool to measure spatial wave field variations in coastal approaches 将地基遥感作为测量沿岸空间波场变化的工具

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-082.1

K. Reichert, B. Lund

{"title":"Ground based remote sensing as a tool to measure spatial wave field variations in coastal approaches","authors":"K. Reichert, B. Lund","doi":"10.2112/jcr-si50-082.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-082.1","url":null,"abstract":"REICHERT, K. and LUND, B., 2007. Ground based remote sensing as a tool to measure spatial wave field variations in coastal approaches. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), pg – pg. Gold Coast, Australia, ISBN The wave monitoring system WaMoS II was developed for real time measurements of directional ocean wave spectra. The system is based on a standard marine X-band radar and can be operated to monitor the sea state from fixed platforms, in coastal areas or from moving vessels. In contrary to wave buoys it allows for temporal and spatial wave analysis. Wave data are needed in coastal areas to help increase safety of ship navigation and improve coastal protection strategies. This paper presents data obtained from the island of Sylt, Germany and at the entrance to Port Phillip Bay, Australia. Both regions are characterised by a complex bottom topography that leads to a highly spatially variable wave field. The wave transformation such as refraction, shoaling, and dissipation are described and quantified. WaMoS II proves to be a powerful tool to monitor changes of sea state caused by local topography.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366353","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}

引用次数: 12

Sediment Transport Processes in the Swash Zone of Sandy Beaches 沙质海滩冲刷区的沉积物迁移过程

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-120.1

T. Butt, P. Russell, Jon Miles, Ian L Turner

{"title":"Sediment Transport Processes in the Swash Zone of Sandy Beaches","authors":"T. Butt, P. Russell, Jon Miles, Ian L Turner","doi":"10.2112/jcr-si50-120.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-120.1","url":null,"abstract":"BUTT, T., RUSSELL, P., MILES, J. AND TURNER, I., 2007. Sediment Transport Processes in the Swash Zone of Sandy Beaches. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 636 – 640. Gold Coast, Australia, ISSN 0749.0208 In recent years, there has been a general resurgence of interest in the swash zone. However, it still remains one of the least well understood parts of the coastal zone. The sediment transport and resulting morphological changes in the swash zone are notoriously difficult to predict. Energetics-type formulations are less useful for predicting sediment transport in the swash zone than further seaward, particularly as conditions become more reflective. One reason for this is the existence of processes in the swash zone such as bore turbulence, inexfiltration and sediment advection. This paper presents an overview of the findings from a recent 3-year UK swash-zone field study with particular focus on these processes and the way their influence varies according to the prevalent hydrodynamic and morphological conditions. There is now evidence that (a) the influence of bore turbulence decreases with increasing dissipativeness, (b) in-exfiltration biases the transport onshore or offshore above and below a particular grain size respectively and (c) sediment advection may bias the transport onshore in reflective conditions and offshore in high-energy dissipative conditions. ADDITIONAL INDEX WORDS: Advection, Backwash, Bore turbulence, Energetics, In-exfiltration, Uprush.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366638","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}

引用次数: 9

Long Waves and Beach Profile Evolutions 长波和海滩轮廓演变

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-043.1

H. Michallet, F. Grasso, E. Barthélemy

引用次数: 0

Beachface morphology and surf beat sediment transport in laboratory scale surf and swash zones 实验室规模的冲浪区和沼泽区的滩面形态和冲浪拍打沉积物运移

4区地球科学

Journal of Coastal Research Pub Date : 2024-03-29 DOI: 10.2112/jcr-si50-119.1

T. Baldock, P. Manoonvoravong, K. S. Pham

{"title":"Beachface morphology and surf beat sediment transport in laboratory scale surf and swash zones","authors":"T. Baldock, P. Manoonvoravong, K. S. Pham","doi":"10.2112/jcr-si50-119.1","DOIUrl":"https://doi.org/10.2112/jcr-si50-119.1","url":null,"abstract":"Predicting the evolution of the beachface is important in terms of coastal protection, recreation and environmental sustainability. Swash zone sediment transport plays a major role in this morphological response. However, despite recent advances in swash zone modelling and data collection, specific details are lacking, notably the cross-shore variation in net transport rates, the influence of surf beat and wave groups on swash sediment transport and the effects of the feedback between the surf and swash zones. This paper provides novel data from carefully controlled small-scale laboratory experiments investigating surf beat sediment transport. The data include very detailed observations of the cross-shore distribution of net sediment transport in the surf and swash zones for both eroding and accreting beaches. Further, these distributions are contrasted for monochromatic waves, monochromatic waves with surf beat and bichromatic wave groups with surf beat. In this case, free surf beat is shown to reduce nearshore wave heights and reduce short wave velocity amplitudes. Free surf beat is found to promote onshore sediment transport under accretionary conditions and reduce offshore transport under erosive conditions. Hence, the free surf beat tends to transform the beach toward a reflective state and possibly protects the beach. However, a bichromatic wave group shows the opposite effect. Additional data show the influence of the beach face evolution on the onshore migration of longshore bars, illustrating coupling between swash and surf zone morphology.","PeriodicalId":51078,"journal":{"name":"Journal of Coastal Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140366752","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}

引用次数: 14