Integrated modeling analysis of estuarine responses to extreme hydrological events and sea-level rise

Wu Wenting; Yang Zhaoqing; Zhang XuejunZhou YunxuanTian BoTang Qiuhong

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Integrated modeling analysis of estuarine responses to extreme hydrological events and sea-level rise

机译：Integrated modeling analysis of estuarine responses to extreme hydrological events and sea-level rise

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Estuaries are vulnerable to climate change and are particularly sensitive to extreme river discharge (RD) and sealevel rise (SLR). To understand the effects of extreme RD and SLR on estuaries, an integrated modeling approach is adopted to simulate hydrodynamic changes in the Yangtze River Estuary. Model results showed that SLR will intensify the estuarine hydrodynamics in water level, currents, and salinity. Water level, current speed, and salinity increased linearly with the magnitude of SLR. The hydrological model suggested a lower RD in the future. This will increase the saltwater intrusion, which will be more severe during the lower RD and drought extreme hydrological event (EHE) conditions. Model results also suggested that the saltwater intrusion is more sensitive to RD than SLR. In addition, the interplay between the RD and SLR will exacerbate the impacts of coastal oceans on estuarine hydrodynamics, especially during extremely low RD conditions. Moreover, the decrease of RD and deepening of the channel due to human activities will also amplify the effects of SLR on the Estuary, increasing the risk of coastal disasters.

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《Estuarine coastal and shelf science》 |2021年第31期|107555.1-107555.13|共13页
作者
Wu Wenting; Yang Zhaoqing; Zhang XuejunZhou YunxuanTian BoTang Qiuhong;
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作者单位

Fuzhou Univ, Natl & Local Joint Engn Res Ctr Satellite Geospat, Key Lab Spatial Data Min & Informat Sharing, Minist Educ, Fuzhou, Peoples R China|East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China;

Pacific Northwest Natl Lab, Coastal Sci Div, Seattle, WA USA|Univ Washington, Dept Civil & Environm Engn, Seattle, WA USA;

Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R ChinaEast China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R ChinaChinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China|Univ Chinese Acad Sci, Beijing, Peoples R China;

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正文语种英语
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Estuarine responses; Climate change; Integrated modeling analysis; Extreme hydrological events; Sea-level rise;

Integrated modeling analysis of estuarine responses to extreme hydrological events and sea-level rise

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