磨刀门口夏冬季沿岸流特征及成因分析

高时友; 何用; 卢陈; 杨裕桂; 吴门伍

doi:10.3969/j.issn.0253-4193.2017.05.001

磨刀门口夏冬季沿岸流特征及成因分析

doi: 10.3969/j.issn.0253-4193.2017.05.001

1.
中山大学地理科学与规划学院, 广东广州 510275;水利部珠江河口动力学及伴生过程调控重点实验室, 广东广州 510611;珠江水利科学研究院, 广东广州 510611
2.
水利部珠江河口动力学及伴生过程调控重点实验室, 广东广州 510611;珠江水利科学研究院, 广东广州 510611

基金项目: 水利部公益性行业科研专项（201501010）；国家自然科学基金资助项目（51409286）；珠科院开放基金（[2013]KJ05）。

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出版历程
- 收稿日期: 2016-04-20
- 修回日期: 2016-12-09

The characteristics of alongshore current in flood and the dry season in Modaomen Estuary of the Pearl River and the reason analysis

1.
School of Geography and Planning of Sun Yat-Sen University, Guangzhou 510275, China;Key Laboratory of the Pearl River Estuarine Dynamics and Associated Process Regulation, Ministry of the Water Resources, Guangzhou 510611, China;Pearl River Hydraulic Research Institute, Guangzhou 510611, China
2.
Key Laboratory of the Pearl River Estuarine Dynamics and Associated Process Regulation, Ministry of the Water Resources, Guangzhou 510611, China;Pearl River Hydraulic Research Institute, Guangzhou 510611, China

摘要

摘要: 根据2011—2012年磨刀门口的夏、冬季大、中、小潮定点观测资料，对欧拉余流、斯托克斯余流以及拉格朗日余流进行分析。结果表明：（1）外海测点的欧拉余流和拉格朗日余流，冬季在各潮型下均为一致的西南沿岸方向，夏季除东、西汊道点在强径流下表现为顺汊道指向外海方向，其余外海各点仍以西南沿岸方向为主；（2）斯托克斯余流远小于欧拉余流，夏季明显大于冬季，方向基本与欧拉余流相反；（3）冬季磨刀门口海域具有稳定西南向沿岸流特征，南海东北季风的驱动作用是其形成的主要原因；夏季磨刀门口各潮型下沿岸流特征各异，其影响的主要因素为径流和风，同时地形的影响不可忽略，特别是拦门沙形成的汊道分流作用，对强径流作用下水沙输移影响十分显著。
- 沿岸流 /
- 磨刀门河口 /
- 欧拉余流 /
- 斯托克斯余流 /
- 拉格朗日余流
Abstract: According to the observation data in spring tide, middle tide, neap tide in flood and dry season at Modaomen Estuary from 2011 to 2012, this paper analyzes Euler residual current, Stokes residual current and Lagrange residual flow. The results show that: (1) the main direction of Euler residual current and Lagrange residual flow are southwest in winter and summer but the current in east and west branch show offshore under the strong runoff; (2) the Stokes residual current is much less than Euler residual current and much greater in summer than in winter, the direction of the Stokes residual current is in the opposite of Euler residual current; (3) there is a stable southwest alongshore current in winter in Modaomen Estuary, the driving effect of northeast monsoon in the South China Sea is the main reason, there is no consistent characteristics of alongshore current in summer, the main influencing factors is runoff and the wind, and the influence of the terrain especially the shunt effect caused by the mouth bar should not be neglected, it will influence the transport of water and sediment which under the strong runoff significantly.
- alongshore current /
- Modaomen Estuary /
- Euler residual current /
- Stokes residual current /
- Lagrange residual flow

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参考文献(10)

应秩甫. 粤西沿岸流及其沿岸沉积[J]. 中山大学学报(自然科学版), 1999, 38(3): 85-89. Ying Zhifu. On the coast current and its deposit along western coast in Guangdong[J]. Acta Scientiarum Naturalium Universitatis Sun-Yat Seni, 1999, 38(3): 85-89.

杨阳, 孟强, 夏华永, 等. 2006年夏季珠江冲淡水扩展及响应[J]. 热带海洋学报, 2010, 29(6): 15-21. Yang Yang, Meng Qiang, Xia Huayong, et al. Expansion of the Pearl River diluted water in 2006 and its ecological response [J]. Journal of Tropical Oceanography, 2010, 29(6): 15-21.

逯玲燕, 詹杰民, 耿兵绪. 基于通量收支分析的珠江口冲淡水扩展规律研究[J]. 水动力学研究与进展, 2013, 28(3): 252-259. Lu Lingyan, Zhan Jieming, Geng Bingxu. Study of the Pearl River plume dispersion based on flux budget analysis[J].Chinese Journal of Hydrodynamics, 2013, 28(3): 252-259.

Ou Suying, Zhang Hong, Wang Dongxiao. Horizontal characteristics of buoyant plume off the Pearl River Estuary during summer[J]. Journal of Coastal Research, 2007, 50: 652-657.

杨士瑛, 鲍献文, 陈长胜, 等. 夏季粤西沿岸流特征及其产生机制[J]. 海洋学报, 2003, 25(6): 1-7. Yang Shiying,Bao Xianwen,Chen Changsheng, et al. Analysis on characteristics and mechanism of current system in west coast of Guangdong Province in the summer[J]. Haiyang Xuebao, 2003, 25(6): 1-7.

董兆英, 李素琼, 盛晨. 珠江口余流特征初步分析[J]. 热带地理, 1985, 5(3): 177-185. Dong Zhaoying, Li Shuqiong, Sheng Chen. Preliminary analysis of the residual current in the Zhujiang estuary[J]. Tropical Gegoraphy, 1985, 5(3): 177-185.

贾良文, 吴超羽, 任杰, 等. 珠江口磨刀门枯季水文特征及河口动力过程[J]. 水科学进展, 2006, 17(1): 82-88. Jia Liangwen,Wu Chaoyu,Ren Jie, et al. Hydrologic characteristics and estuarine dyna mic process during the dry season in Modaomen Estuary of the Pearl River[J]. Advances in Water Science, 2006, 17(1): 82-88.

方神光, 王少波. 磨刀门水道枯季水动力特性分析[J]. 水文, 2013, 33(5): 70-74. Fang Shenguang, Wang Shaobo. Analysis of water dynamic characteristics of Modaomen waterway during dry season[J].Journal of China Hydrology, 2013, 33(5): 70-74.

Bowden K F. The mixing processes in tidal estuary[J]. International Journal of Air and Water Pollution, 1963, 7: 343-356.

杨士瑛, 鲍献文, 陈长胜, 等. 夏季粤西沿岸流特征及其产生机制[J]. 海洋学报, 2003, 25(6):1-8. Yang Shiying, Bao Xianwen, Chen Changsheng, et al. Analysis on characteristics and mechanism of current system in west coast of Guangdong Province in the summer[J]. Haiyang Xuebao, 2003, 25(6):1-8.

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