Impacts of the Ocean Surface Velocity on Wind Stress Coefficient and Wind Stress over Northern and Tropical Pacific
By accounting for the effects of ocean surface velocity (wave velocity and current velocity) into the estimating of wind stress drag coefficient Cd,the spatial distribution of Cd and wind stress τ are examined over the tropical and northern Pacific in 2004,on the basis of empirical formula that employs wave steepness δ as another parameter besides wind speed in characterizing Cd.With the help of current data generated from Hybrid Coordinate Ocean Model (HYCOM) and the waves data from Wavewatch Ⅲ (WW3) model,details of the geographic variability of drag coefficient and wind stress arc statistically categorized and discussed.It is pointed out that,the ocean surface drift velocity influence the drag coefficient significantly,about 5% in avenge.The results also present that accounting for the ocean surface velocity dependence in the wind stress τ can lead to significant changes in it,hereinafter the modeling of many oceanic and atmospheric processes,which taking wind stress as one important parameter.
wind stress wind stress coefficient ocean surface velocity HYCOM WW3
Deng Zeng”An Wu KeJian Yu Ting
Physicial Oceanography Laboratory,Ocean University Of China,Qingdao,266100,P.R.China
国内会议
青岛
英文
1-13
2007-08-01（万方平台首次上网日期，不代表论文的发表时间）