Analysis on the Ekman spiral and the Ekman transport of the wind drift current under the Earth rotation effect

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  • 吹送流が形成するEkman螺旋とEkman輸送に関する考察
  • スイソウリュウ　ガ　ケイセイスル　Ekmanラセン　ト　Ekmanユソウ　ニ　カンスル　コウサツ

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The formation process of the Ekman spiral and the behavior of the Ekman transport have been examined through the analysis of the motion equation. This analysis has revealed that the Ekman spiral is similar to the Stokes boundary layer fundamentally and that the steady drift current generally known is not the current at the passage of long time but merely the inertia-periodically averaged current. The usual idea that the Ekman transport flows in the rightward direction is also the result of the inertia-periodical average of the volume transport of the drift current.

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