El Nino 1991 and effects of 1982/3 on globe

El Nino 1991 and effects of 1982/3 on globe

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This image is part of the feature Predicting El Nino


Caption: 1991 El Nino event. Map of sea surface temperature in the Pacific Ocean, showing the persistence of the effects of El Nino events. In the shaded area at lower right is the warm water of the 1991 El Nino (orange & yellow). The orange and yellow band further north (centre) is a sea temperature anomaly caused by the El Nino of 1982-83. The El Nino is caused by weak westward trade winds, which allow a large 'tongue' of warm water to move east across the Pacific from Asia. This changes the position of the atmospheric jet streams - the boundaries of the climate zones - and results in dramatic climate shifts across the globe.

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Keywords: climate, el nino, el nino event, global water temperature, map, ocean, sea temperature map, water temperature

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