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大小宇宙99

铜虫 (小有名气)

[求助] Ekman transport 已有2人参与

读一篇关于南海温跃层变化的文献时候,提到“Due to the upper Ekman transport caused by monsoon over the SCS, the thermocline slopes upward(downward) in winter(summer) from northwest to southeast, but there is no pileup of upper warm water along the monsoon direction. ”
请问,Ekman transport是什么?
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活的简单些
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damnguy

金虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
Ekman Transport, part of Ekman motion theory first investigated in 1902 by Vagn Walfrid Ekman, is the term given for the 90° net transport of the surface layer (the layer affected by wind) by wind forcing. This phenomenon was first noted by Fridtjof Nansen, who recorded that ice transport appeared to occur at an angle to the wind direction during his Arctic expedition during the 1890s. It is the net motion of fluid as the result of a balance between Coriolis and turbulent drag forces.  [Followed the wikipedia] 海洋科学课上貌似学过,不过我这地质狗早还给老师了。
具体的公式和示意图可以直接google或者wikipedia。。。
2楼2014-09-18 16:52:22
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wuyingxu206

铁虫 (初入文坛)

【答案】应助回帖

简单说来,就是风对海流的作用,成为艾克曼效应。以北半球为例,在艾克曼效应驱动下,海水向流动方向的右手边偏离;南半球则向左手边偏移。
3楼2014-10-22 17:28:10
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