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The Arctic Ocean: Physical Processes and their Effects on Climate and the Ecosystem
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A numerical study of the impacts of storm on upper ocean in the Canada Basin of the Arctic Ocean during summer
Wednesday 9th @ 1110-1130, Conference Room 5
Xuezhi Bai* , Hohai University
hengling Leng, Hohai University
Yayu Yang, Hohai University
Presenter Email: xuezhi.bai@hhu.edu.cn |
| The impacts of storm on sea ice and the upper ocean in the Canada Basin of the Arctic Ocean during summer 2010 was examined using a high-resolution regional coupled ice-ocean model (MITgcm). Model results suggest that enhanced vertical mixing induced by storm is limited within the upper 15m. The mixing results in sea surface cooling of up to 2C over the open water. There is no obvious change in the interface water temperature under ice cover. For the subsurface, large responses (mainly warming) occur in the upper halocline (40m-60m) and the thermocline between the cold Pacific water and warm Atlantic Water(100-300m). Ekman pumping associated with storms is responsible for the subsurface water temperature changes.
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