水动力对越南巴达棱湾表层沉积物和岸滩的影响

杨阳; 李锐祥; 乔光全; 刘愉强; 肖志建; 朱鹏利

doi:10.3969/j.issn.0253-4193.2015.05.007

水动力对越南巴达棱湾表层沉积物和岸滩的影响

doi: 10.3969/j.issn.0253-4193.2015.05.007

国家海洋局南海工程勘察中心, 广东广州 510300

基金项目: 国家自然科学基金(41376026)。

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出版历程
- 收稿日期: 2014-06-20
- 修回日期: 2014-12-22

The influence of Hydrodynamics on surface sediment and beach in the Cu Lao Cau Bay,Vietnam

South China Sea Marine Engineering Survey Center, State Oceanic Administration, Guangzhou 510300, China

摘要

摘要: 基于越南巴达棱湾2007年4月采集的42个表层沉积物样品及实测水文资料,分析越南巴达棱湾表层沉积物特征,并结合GSTA模型分析表层沉积物的运移趋势。结果表明:越南巴达棱湾表层沉积物以粗颗粒为主,在潮流和波浪的作用下呈中西部粗、东部细的分布特征;其西侧表层沉积物沿岸线自西南向湾内运移,中西近岸区沉积物垂直于岸线做离岸输移,在湾的东侧存在自东北向西南的运移趋势,并与从湾西运移过来的底沙相遇,形成运移辐聚区,并在余流的作用下,向西运移;"波浪掀沙,潮流输沙"是该地区表层沉积物输运的主要作用机制;在波浪的作用下,研究海域的海岸线处于侵蚀状态,有后退的趋势。
- 越南巴达棱湾 /
- 表层沉积物 /
- 粒度特征 /
- 运移趋势
Abstract: This study analyzed 42 surface sediment samples and hydrological data observed in Aprial,2007 in the Cu Lao Cau Bay. The obtained data,combined with the Gao-Collins Grain Size Trend Analysis Model (GSTA model),were used to infer the characteristics and transportation trend of sarface sediment in the Cu Lao Cau Bay,Vietnam. The results suggested that the surface sediments were mainly composed of coarse particles. Under the influences of the tidal currents and waves,the particles were coarse in the central and western part of the Bay,and fine in the eastern part. In the western part of the Bay,the sediments were transported from southwest into the Bay along the coast. In the central part of the Bay,the sediments were transported from nearshore to offshore. In the eastern part of the Bay,the sediments were transported from northeast to the southwest. A convergent area of sediments was formed by the sediment from the western and eastern part of the Bay,and then they moved westward under the influence of residual currents. The surface sediment movement was mainly induced by the superimposed effect of wave and tidal current,of which the sediment was left by wave and transported by the tidal current. The coastline of the Cu Lao Cau Bay is being eroded under the influence of wave (a main factor),and it generally takes on a tendency of moving backward.
- Tuy Phong /
- surface sediment /
- grain size character /
- trend of sediment transport

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参考文献(20)

Pham H T,Nguyen V C. Forecasting the erosion and sedimentation in the coastal and river mouth areas and preventive measures[R]. State Level Research Project. Hanoi,Vietnam,2005.

Nguyen V T,Zheng Jinhai ,Zhang Chi. Beach Profiles characteristics along Giao Thuy and Hai Hau Coasts,Vietnam: A field study[J]. China Ocean Engineering,2012,26(4): 699-712.

Van Maren H. Seasonal variation of hydrodynamics and sediment dynamics in a shallow subtropical estuary:the Ba Lat River,Vietnam,Estuarine[J]. Coastal and Shelf Science,2004,60(2): 529-540.

Dang Van To. Beach erosion in Doi Duong-Phan Thiet tourist resort and its proposed measure[R]. Vietnam-Japan Estuary Workshop,August 22nd-24th,Hanoi,Vietnam,2006.

Le Xuan Hoan,Hans Hanson,Magnus Larson,et al. Modeling shoreline evolution at Hai Hau Beach,Vietnam[J]. Journal of Coastal Research,2010,26(1):31-43.

Vo Luong H P. Massel Experiments on wavemotion and suspended sediment concentration at Nang Hai,Can Gio mangrove forest,Southern Vietnam[J]. Oceanologia,2006,48 (1):23-40.

魏志强,杨阳,刘愉强,等. 越南中部沿岸潮汐、潮流特征[J]. 海洋通报,2012,31(5):515-519. Wei Zhiqiang,Yang Yang,Liu Yuqiang,et al. Characeristics of tide and tidal current along the middle coast of Vietnam[J]. Marine Science Bulletin,2012,31(5):515-519.

杨阳,李锐祥,刘愉强,等. 巴达棱湾悬沙分布特征及动力机制[J]. 热带海洋学报,2014,33(6): 34-40. Yang Yang,Li Ruixiang,Liu Yuqiang,et al. Distribution and dynamic mechanism of suspended sediment in the Tuy Phong Bay[J]. Journal of Tropical Oceanography,2014,33(6): 34-40.

Gao Shu,Collins Michae1. Net sediment transport patterns inferred from grain size trends,based upon definition of transport vectors[J]. Sedimentary Geology,1992,81(1):47-60.

McManus J. Grain size determination and interpretation[M]//Tucker M E. Techniques in Sedimentology. Oxford: Blackwell Scientific Publications,1988: 63-85.

Mclanren P A,Boeles D. The effects of sediment transport on grain-size distributions[J]. Sedimentary Petrology,1985,55(2):457-470.

程鹏,高抒. 北黄海西部海底沉积物的粒度特征和净输移趋势[J].海洋与湖沼,2000,31(6):79-84. Cheng Peng,Gao Shu. Net sediment transport patterns over the northwestern Yellow Sea,based upon grain size trend analysis[J]. Oceanologia et Limnologia Sinica,2000,31(6):79-84.

汪亚平,高抒,贾建军,等. 胶州湾及邻近海域沉积物分布特征和运移趋势[J].地理学报,2000,55(4):449-457. Wang Yaping,Gao Shu,Jia Jianjun,et al. Sediment distribution and transport patterns in Jiaozhou Bay and adjoining areas[J]. Acta Geographica Sinca,2000,55(4):449-457.

胡日军,吴建政,朱龙海,等. 东海舟山群岛海域表层沉积物运移特性[J].中国海洋大学学报,2009,39(3):45-50. Hu Rijun,Wu Jianzheng,Zhu Longhai,et al. Characteristic of surface sediment transport in Zhoushan archipelago sea area,East China Sea[J]. Periodical of Ocean University of China,2009,39(3):45-50.

陈子燊. 粤西水东湾现代沉积环境特征与泥沙搬运路径[J].热带海洋学报,1996,15(3): 6-13. Chen Zhishen. Characteristics of modern sedimentary environment and sediment transport patternsin Shuidong Bay,Western Guangdong[J].Journal of Tropical Oceanography,1996,15(3):6-13.

张存勇. 连云港近岸海域沉积物运移趋势[J].海洋学报,2013,35(3):172-178. Zhang Cunyong. Sediment transport trends in Lianyungang coastal waters[J]. Haiyang Xuebao,2013,35(3):172-178.

窦国仁.论泥沙起动速度[J].水利学报,1960(4):22-31. Dou Guoren. Motion of coarse and fine sediment[J]. Journal of Hydraulic Engineering,1960(4):22-31.

严恺,粱其荀. 海岸工程[M]. 北京:海洋出版社,2002. Yan Kai,Liang Qijun. Coastal Engineering[M].Beijing: China Ocean Press,2002.

王颖,朱大奎. 海岸地貌学[M]. 北京:高等教育出版,1994. Wang Ying,Zhu Dakui. Coastal Geomorphology[M]. Beijing:Advanced Education Press of China,1994.

戴志军,李春初,王文介. 华南弧形海岸的分形和稳定性研究[J].海洋学报,2006,28(1):176-180. Dai Zhijun,Li Chunchu,Wang Wenjie,et al. Research on stability and fractal of arc-shaped coast in South China[J]. Haiyang Xuebao,2006,28(1):176-180.

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