Seasonal variation of freshwater budget in the Yellow and East China Seas simulated from an ocean general circulation model |
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| Authors: | Taewook Park Chan Joo Jang |
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| Institution: | 1.Climate Change and Coastal Disaster Research Department,KORDI,Seoul,Korea |
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| Abstract: | This study investigates a freshwater budget in the Yellow and East China Seas (YECS) using a global f general circulation
model with a regional focus on the YECS. A freshwater budget analysis finds that major freshwater contributors over the YECS
change seasonally. In summer, freshwater inflow from Changjiang and positive precipitation minus evaporation (P-E) dominates
freshwater outflow across the boundaries around the YECS, resulting in net freshwater gain in the YECS. In winter, evaporation,
intensified by strong winds, dominates freshwater inflow from Changjiang and precipitation, while net freshwater transport
across the boundaries around the YECS is negligible, causing freshwater loss in total over the YECS. Although P-E has often
been assumed to be negligible by supposing that the annual mean of precipitation is nearly equal to that of evaporation, this
study suggests that P-E needs to be included in the seasonal freshwater budget in the YECS. |
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