Madden-Julian oscillation

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English

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Etymology

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Discovered in 1971 by Roland Madden and Paul Julian of the American National Center for Atmospheric Research.

Proper noun

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the Madden-Julian oscillation

  1. (meteorology) The largest element of the intraseasonal variability in the tropical atmosphere: a large-scale coupling between atmospheric circulation and tropical deep convection, manifesting itself most clearly as anomalous rainfall.