Fine-resolution simulation of surface current and sea ice in the Arctic Mediterranean Seas

被引:0
作者
刘喜迎
张学洪
宇如聪
刘海龙
李薇
机构
[1] LASG Institute of Atmospheric Physics Chinese Academy of Sciences
[2] LASG Institute of Atmospheric Physics Chinese Academy of Sciences
[3] China Meteorology Administration
[4] Beijing 100029
[5] China
[6] Beijing 100085
关键词
Arctic Ocean circulation; numerical simulation; sea ice; model resolution; LASG Model;
D O I
暂无
中图分类号
P731.15 [海冰];
学科分类号
0707 ;
摘要
A fine-resolution model is developed for ocean circulation simulation in the National Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Chinese Academy of Sciences, and is applied to simulate surface current and sea ice variations in the Arctic Mediterranean Seas. A dynamic sea ice model in elastic-viscous-plastic rheology and a thermodynamic sea ice model are employed. A 200-year simulation is performed and a dimatological average of a 10-year period (141st-150th) is presented with focus on sea ice concentration and surface current variations in the Arctic Mediterranean Seas. The model is able to simulate well the East Greenland Current, Beaufort Gyre and the Transpolar Drift, but the simulated West Spitsbergen Current is small and weak. In the March climatology, the sea ice coverage can be simulated well except for a bit more ice in east of Spitsbergen Island. The result is also good for the September scenario except for less ice concentration east of Greenland and greater ice concentration near the ice margin. The extra ice east of Spitsbergen Island is caused by sea ice current convergence forced by atmospheric wind stress.
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页码:132 / 138
页数:7
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