| Impact of the eastern water diversion from the south to the north project on the saltwater intrusion in the Changjiang Estuary in China |
| |
| 作者姓名： | XU Kun ZHU Jianrong GU Yuliang |
| |
| 作者单位： | [1]State Key Laboratory of Estuarine and Coastal Research, East China Normal University,Shanghai 200062, China [2]State Engineering Research Center （South） of Urban Water Resources Development andUtilization, Shanghai 200082, China |
| |
| 基金项目： | The National Basic Science Research Program of Global Change Research of China under contract No. 2010CB951201; the Funds for Creative Research Groups of China under contract No. 41021064; the National Natural Science Foundation of China under contract No. 40976056. |
| |
| 摘 要： | The south to the north project(WDP) on the saltwater intrusion in the Changjiang Estuary is studied by the improved three-dimensional(3D) numerical model.The net unit width flux in the Changjiang Estuary as well as the sectional salt flux is calculated in the North Branch(NB),the South Branch(SB),the North Channel(NC),the South Channel(SC),the North Passage(NP) and the South Passage(SP),respectively.The net seaward water flux in the SB is reduced,and the net water flux spilling over from the NB to the SB is enhanced after the eastern WDP.Under the mean river discharge condition in the dry season,the net salt flux spilling over from the NB to the SB is increased by 2.09 t/s and 0.52 t/s during the spring and neap tides,respectively,due to the eastern WDP.The saltwater intrusion in the Changjiang Estuary is enhanced by the eastern WDP.Compared with that during the spring tide,the net water diversion ratio during the neap tide in the NC is smaller,and thus the enhancement of the saltwater intrusion by the eastern WDP is smaller in the NC,and larger in the NP and the SP.The tidally averaged surface salinity at the water intakes of the Dongfengxisha Reservoir,the Chenhang Reservoir and the Qingcaosha Reservoir rises both during the spring and neap tides.
|
| 关 键 词： | eastern water diversion from the south to the north project saltwater intrusion Changjiang Estuary numerical calculation the water resource |
| 收稿时间： | 2011/5/10 0:00:00 |
| 修稿时间： | 2011/12/6 0:00:00 |
Impact of the eastern water diversion from the south to the north project on the saltwater intrusion in the Changjiang Estuary in China |
| |
| XU Kun,ZHU Jianrong,GU Yuliang.Impact of the eastern water diversion from the south to the north project on the saltwater intrusion in the Changjiang Estuary in China[J].Acta Oceanologica Sinica,2012,31(3):47-58. |
| |
| Authors: | XU Kun ZHU Jianrong and GU Yuliang |
| |
| Institution: | 1.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China2.State Engineering Research Center(South) of Urban Water Resources Development and Utilization, Shanghai 200082, China |
| |
| Abstract: | The south to the north project (WDP) on the saltwater intrusion in the Changjiang Estuary is studied by the improved three-dimensional (3D) numerical model. The net unit width flux in the Changjiang Estuary as well as the sectional salt flux is calculated in the North Branch (NB), the South Branch (SB), the North Channel (NC), the South Channel (SC), the North Passage (NP) and the South Passage (SP), respectively. The net seaward water flux in the SB is reduced, and the net water flux spilling over from the NB to the SB is enhanced after the eastern WDP. Under the mean river discharge condition in the dry season, the net salt flux spilling over from the NB to the SB is increased by 2.09 t/s and 0.52 t/s during the spring and neap tides, respectively, due to the eastern WDP. The saltwater intrusion in the Changjiang Estuary is enhanced by the eastern WDP. Compared with that during the spring tide, the net water diversion ratio during the neap tide in the NC is smaller, and thus the enhancement of the saltwater intrusion by the eastern WDP is smaller in the NC, and larger in the NP and the SP. The tidally averaged surface salinity at the water intakes of the Dongfengxisha Reservoir, the Chenhang Reservoir and the Qingcaosha Reservoir rises both during the spring and neap tides. |
| |
| Keywords: | eastern water diversion from the south to the north project saltwater intrusion Changjiang Estuary numerical calculation the water resource |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
