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BI Fan,WU Kejian,ZHANG Yuming. 2012. The effect of Stokes drift on Ekman transport in the open sea. Acta Oceanologica Sinica, (6):12－18
The effect of Stokes drift on Ekman transport in the open sea
The effect of Stokes drift on Ekman transport in the open sea
Received:April 19, 2011  Revised:May 03, 2012
DOI：10.1007/s13131-012-0249-1
Key words:Stokes transport  Ekman transport  ocean swell  ocean gyres
中文关键词:  Stokes transport  Ekman transport  ocean swell  ocean gyres
基金项目:The National Natural Science Foundation of China under contract Nos 40976005 and 40930844.
Author NameAffiliationE-mail
BI Fan Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China  
WU Kejian Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China kejianwu@ouc.edu.cn 
ZHANG Yuming Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China  
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Abstract:
      By introducing the wave-induced Coriolis-Stokes forcing into ageostrophic motion equation, the Eulerian transport is modified by the wave-induced Stokes drift. The long-term mean contributions of the Stokes transport with remotely generated swells being included to the ageostrophic transport are analyzed using the ECMWF (European Centre for Medium-Range Weather Forecasts) reanalysis data. The ratio of Stokes transport to Ekman transport in north-south (N-S) direction can reach a maximum of over 50% in the subtropical region. The preliminary influence of the Stokes transport on the North Pacific gyre is all year persistent, while the effect on the North Atlantic gyre is only obvious in boreal winter and early spring.
中文摘要:
      By introducing the wave-induced Coriolis-Stokes forcing into ageostrophic motion equation, the Eulerian transport is modified by the wave-induced Stokes drift. The long-term mean contributions of the Stokes transport with remotely generated swells being included to the ageostrophic transport are analyzed using the ECMWF (European Centre for Medium-Range Weather Forecasts) reanalysis data. The ratio of Stokes transport to Ekman transport in north-south (N-S) direction can reach a maximum of over 50% in the subtropical region. The preliminary influence of the Stokes transport on the North Pacific gyre is all year persistent, while the effect on the North Atlantic gyre is only obvious in boreal winter and early spring.
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