equatorial westerlies

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The westerly winds that sometimes develop within the equatorial trough when the Intertropical Convergence Zone is well north or south of the Equator. The north-easterly or south-easterly trade winds cross the Equator and, because of the reversal of the Coriolis effect, acquire a westerly component. The term is also applied to the westerlies that are present throughout most of the year in the eastern Indian Ocean.

Subjects: Meteorology and Climatology.

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