Ekman抽吸对南海海面升高变化的贡献  

Contribution of the Ekman pumping to the variability of the sea surface height in the South China Sea

作　　者：张进乐[1] 李少伟[1] 邬晓冬 

机构地区：[1]国家海洋局厦门海洋预报台,福建厦门361008 [2]大连市气象局气象服务中心,辽宁大连110001

出　　处：《海洋预报》2014年第5期55-62,共8页Marine Forecasts

摘　　要：利用NECP海表风场资料和T/P卫星高度计资料,研究风场通过Ekman抽吸对南海海面升高变化的贡献。通过分析发现:对于南海200 m以深区域的平均海面升高的变化,Ekman抽吸在1月和2月份起到主要作用,其他月份和海面升高变化反号。在年际尺度上,Ekman抽吸的EOF第二模态对海面高度的第一模态具有紧密的联系。Based on the wind data derived from National Center for Environmental Prediction （NCEP） and the Topex/Poseidon （T/P） satellite altimeter data,the influence of Ekman pumping on the variability of sea level in the South China Sea is studied.It is shown that the Ekman pumping plays a major role in mean sea level variability in January and February deeper than 200 m water depth.However,in other seasons the influence is opposite.In the interannual scale,the second EOF mode of Ekman pumping has close links with the first mode of the variability of sea level.

关 键 词：EKMAN抽吸 海面升高变化 南海 EOF 

分 类 号：P732[天文地球—海洋科学]