Numerical study on the summertime patches of red tide in the adjacent sea of the Changjiang (Yangtze) River Estuary, China

文献类型： 外文期刊

第一作者： Qu, Dapeng

作者： Qu, Dapeng;Yu, Huaming;Qu, Dapeng;Wei, Qinsheng;Yuan, Yeli;Yu, Huaming;Qu, Dapeng;Yu, Huaming;Sun, Yuchen;Zhao, Yunxia;Yu, Haiqing;Qu, Dapeng;Yu, Huaming;Zhao, Yunxia;Wei, Qinsheng;Yuan, Yeli;Kelly, Ryan M.

作者机构：

关键词： Red tide; Changjiang (Yangtze) River Estuary; Changjiang diluted water; Taiwan warm current; Plume front; Numerical model

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）

ISSN： 0025-326X

年卷期： 2019 年 143 卷

页码：

收录情况： SCI

摘要： High incident rates of red tide have occurred off the coast of the Changjiang (Yangtze) River Estuary in summer, resulting from a magnified population growth discharging substantial nutrient loads into this vicinity. The presence of elevated Chlorophyll-a concentrations (>= 36.3 mu g/l), low suspended sediment concentrations in surface and mid-layers (< 10 mg/l), a strong saline front and surface water temperature gradient, veering surface winds, and a bimodal shape to the Changjiang Diluted Water (CDW) revealed two red tide patches appearing between August 6-13, 2010. Two distinguishable hydrodynamic driving mechanisms, connected to these incidents, are diagnosed. Field observations and numerical simulations determined a red tide patch in the northeastern offshore area is caused by a northeast transport of the CDW truncated by a northwest intrusion of the Taiwan Warm Current (TWC) as winds deviated. Red tide occurrence in the southern nearshore area originated from a plume front where CDW interfaces with the TWC.

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