| JU Lian,JIANG Wensheng,FENG Shizuo. 2009. A Lagrangian mean theory on coastal sea circulation with inter-tidal transports Ⅱ. Numerical Experiments. Acta Oceanologica Sinica, (1):1－14 |
| A Lagrangian mean theory on coastal sea circulation with inter-tidal transports Ⅱ. Numerical Experiments |
| A Lagrangian mean theory on coastal sea circulation with inter-tidal transports Ⅱ. Numerical Experiments |
| Received:July 31, 2007 Revised:November 02, 2008 |
| DOI： |
| Key words:numerical model coastal water circulation Lagrangian residual velocity Bohai Sea |
| 中文关键词: numerical model coastal water circulation Lagrangian residual velocity Bohai Sea |
| 基金项目:The National Key Basic Research Science Foundation ("973" Project) of China under contract No. 2002CB412402; the National Natu-ral Science Foundation of China under contract No. 40276007; and Program for New Century Excellent Talents in University of China under contract No. NCET-05-0592. |
| Author Name | Affiliation | E-mail | | JU Lian | Key Laboratory of Physical Oceanography of Ministry of Education, Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | | | JIANG Wensheng | Key Laboratory of Physical Oceanography of Ministry of Education, Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | wsjang@ouc.edu.cn | | FENG Shizuo | Key Laboratory of Physical Oceanography of Ministry of Education, Institute of Physical Oceanography, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| The results of the new concept of coastal sea circulation are demonstrated by numerical simulations for the first time. The numerical experiments in three types of rectangular model seas illustrate the dependence of circulation on tidal phases due to the convectively nonlinear effect which is estimated by a newly defined drift dispersion in-dex. Then, the present theory is applied in the Bohai Sea of China. At the Bohai Straits and the Huanghe River mouth area the circulation direction even reverses owing to different initial tidal phases which shows that the the-ory copes with nonlinearity well. The calculated M2 tide-induced residual circulation shows that a clockwise gyre exists in the center of an anticlockwise gyre in the central Bohai Sea due to the topographic features. In the Bo-hai Gulf the tide induced circulation shows a 3D structure with outflow at the surface and the inflow at the bottom which can partly explains the spread of the Huanghe River fresh water out of the Bohai Gulf and the inflow of the sediment from the Huanghe River. |
| 中文摘要: |
| The results of the new concept of coastal sea circulation are demonstrated by numerical simulations for the first time. The numerical experiments in three types of rectangular model seas illustrate the dependence of circulation on tidal phases due to the convectively nonlinear effect which is estimated by a newly defined drift dispersion in-dex. Then, the present theory is applied in the Bohai Sea of China. At the Bohai Straits and the Huanghe River mouth area the circulation direction even reverses owing to different initial tidal phases which shows that the the-ory copes with nonlinearity well. The calculated M2 tide-induced residual circulation shows that a clockwise gyre exists in the center of an anticlockwise gyre in the central Bohai Sea due to the topographic features. In the Bo-hai Gulf the tide induced circulation shows a 3D structure with outflow at the surface and the inflow at the bottom which can partly explains the spread of the Huanghe River fresh water out of the Bohai Gulf and the inflow of the sediment from the Huanghe River. |
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