长江河口北支倒灌盐水输送机制分析

吴辉; 朱建荣

长江河口北支倒灌盐水输送机制分析

吴辉,
朱建荣

华东师范大学, 河口海岸学国家重点实验室, 上海, 200062

基金项目: 国家自然科学基金(40376027);国家自然科学基金重点项目(4023101);长江学者和创新团队发展计划项目(IRT0427)

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出版历程
- 收稿日期: 2005-10-28
- 修回日期: 2006-06-22

Analysis of the transport mechanism of the saltwater spilling over from the North Branch in the Changjiang Estuary in China

State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China

摘要

摘要: 基于三维数值模式ECOM-si,采用通量机制分析的方法,对长江河口北支倒灌盐水的输送机制进行了定量研究.模式计算了南北支分叉口和南支河段的潮平均单宽盐通量、各叉道上10个断面的潮平均盐通量和上述两者的机制分解项.基于计算结果讨论了北支倒灌盐水输送的动力机制,发现Lagrange余流输送和潮泵输送在倒灌盐水的输送中起主导作用.讨论了南支各叉道输送倒灌盐水的数量关系,给出了北支盐水倒灌输送的主要路径.
- 盐度输送 /
- 通量机制分析 /
- 倒灌 /
- 数值模拟 /
- 长江口
Abstract: Based on the 3D numerical model, the transport mechanism of the salt water spilling over from the North Branch in the Changjiang Estuary is analyzed quantitatively by use of the flux analysis method.The tidal averaged unit salt flux around the bifurcation of the South and North Branches and the transec tional salt flux in each water way to gether with their analysis constituents are calculated.Based on the model results the transport mechanism of the saltwater transport is discussed, and the Lagrange residual as well as the tidal pumpare found as the main dynamic factors.The transectional salt flux in each waterway in the South Branch is compared, and then main transport course of saline water is discussed
- salinity transport /
- flux mechanism analysis /
- salt water spilling over /
- numerical simulation /
- Changjiang Estuary

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参考文献(22)

沈焕庭,茅志昌,谷国传,等.长江口盐水入侵的初步研究——兼谈南水北调[J].人民长江,1980,1-3.

韩乃斌.长江口南支河段氯度变化分析[J].水利水运科学研究,1983,(1):74-81.

徐建益,袁建忠.长江口南支河段盐水入侵规律的研究[J].水文,1994,83(5):1-5.

茅志昌,沈焕庭.潮汐河口盐水入侵类型探讨——以长江口为例[J].华东师范大学学报(自然科学版),1995,(2):77-84.

茅志昌.长江口南港河段咸潮入侵分析[J].地理研究,1 995,14(1):27-35.

沈焕庭,茅志昌,朱建荣.长江河口盐水入侵[M].北京:海洋出版社,2003.68.

顾玉亮,吴守培,乐勤.北支盐水入侵对长江口水源地的影响研究[J].人民长江,2003,(4):3.

肖成猷,朱建荣,沈焕庭.长江口北支盐水倒灌的数值模型研究[J].海洋学报,2000,22(5):125-132.

沈焕庭.长江河口物质通量[M].北京:海洋出版社,2001.

韩乃斌,卢中一.长江口北支演变及治理的探讨[J].人民长江,1984,(3):40-45.

茅志昌,沈焕庭,陈景山.长江口北支进入南支盐通量的观测与计算[J].海洋与湖沼,2004,33(1):30-34.

沈焕庭,茅志昌,朱建荣.长江河口盐水入侵[M].北京:海洋出版社,2003.

KJERFVE B.Circulation and salt flux in a well mixed estuary[A].Van der Kreeke.Physics of Shallow Estuaries and Bays[M].Berlin:Springer-Berlag,1986.2-29.

吴加学,沈焕庭,吴华林.潮汐河口断面悬沙通量组分模式及其在长江口的应用[J].海洋学报,2002,24(6):49-58.

万新宁,李九发,沈焕庭.长江口外海滨典型断面悬沙通量计算[J].泥沙研究,2004,(6):64-70.

刘高峰,朱建荣,沈焕庭,等.河口涨落槽水沙输运机制研究[J].泥沙研究,2005,(5):51-57.

朱首贤.流、浪模式和物质长期输运分离研究[D].上海:华东师范大学,2005.

BLUMBERG A F,MELLOR G L.A description of a three dimensional coastal ocean circulation model[A].Three-Dimensional Coastal ModelsAM[C].Geophys Union,Coastal and Estuarine Sciences,1987.4:1-16.

CHEN C,ZHU J,RALPH E,et al.Prognostic modeling studies of the Keweenaw Current in Lake Superior:Part I,formation and evolution[J].Journal of Physical Oceanography,2001,31(2):379-395.

朱建荣,朱首贤.ECOM模式的改进及在长江河口、杭州湾及邻近海区的应用[J].海洋与湖沼,2003,34(4):364-388.

孙英兰,张越美.胶州湾三维变动边界的潮流数值模[J].海洋学报,2001,32(4):355-362.

张衡,朱建荣,吴辉.东海黄海渤海8个主要分潮的数值模拟[J].华东师范大学学报(自然科学版),2005,3:71-78.

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