Cromwell Current

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A subsurface current with a very large volume (approximately equal to that of the Gulf Stream) that flows eastwards in the Pacific Ocean, between about 150° E and 95° W, and close to the Equator. It arises from the Ekman effect, which acts opposite to the normal westward surface flow, and is aided by the gradient towards the east as a result of the sloping water surface. During the El Niño phase of an El Niño Southern Oscillation event it is replaced by the Equatorial Counter Current.

Subjects: Meteorology and Climatology.

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