The response time of saltwater intrusion in the Changjiang River Estuary to the change of river discharge in dry season
The response time of saltwater intrusion in the Changjiang River Estuary to the change of river discharge in dry season
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DOI：
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发表时间：
2013
影响因子：
1.4
通讯作者：
Zhu Jian-rong
中科院分区：
文献类型：
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作者：
Zhu Jian-rong
基于高分辨率网格三维数值模型，研究了不同潮型下长江口咸水入侵对大同河道流量变化的响应时间。模型计算域包括长江下游大同至长江口及其邻近海域。结果表明，不同潮型下咸水入侵对大同河道流量增加的时间响应为4.0～ 6.2天,小潮明显长于其他潮型。文中求解了枯季咸水入侵对河流流量变化的响应时间,为长江口水文、泥沙和环境研究利用河流流量提供科学参考。
Based on the 3Dnumerical model with high resolution grid,the response time of saltwater intrusion in the Changjiang Estuary to the change of river discharge at Datong in different tidal pattern is studied.The calculated domain of the model includes the lower reaches of the Changjiang River from Datong to the Changjiang Estuary and its adjacent sea.The results show that the time response of saltwater intrusion to the increasing river discharge at Datong in different tidal pattern is 4.0to 6.2days,and is obvious longer in neap tide than the one in other tidal pattern.The response time of saltwater intrusion to the river discharge change in dry season was solved in this paper,which can be as a scientific reference when the river discharge should be used in the studies of hydrology,sediment and environment in the Changjiang Estuary.