Earth graphic showing sea height during an El Nino

Earth graphic showing sea height during an El Nino

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Credit: NASA/SCIENCE PHOTO LIBRARY

Caption: El Nino event. Earth graphic showing the difference between average sea heights and those during an El Nino event in the Pacific Ocean (at centre right). Colours run from purple (10 cm below normal level) through blue, green (normal level) and yellow to red (10 cm above normal level). The El Nino is the red patch running across the Pacific at the equator. An El Nino is caused by weak westward trade winds which allow warm water to remain near South America. This mass of warm water affects global weather, causing drought in South East Asia & Australia and storms on the American continent. The image was taken by the TOPEX/Poseidon satellite in November.

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Keywords: climate, earth graphic, el nino, el nino event, geography, global, global sea height, level, map, pacific ocean, physical, satellite photo, sea height, sea height map

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