False-colour NOAA satellite image of El Nino event

False-colour NOAA satellite image of El Nino event

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Credit: DR RICHARD LEGECKIS/SCIENCE PHOTO LIBRARY.

Caption: False colour NOAA satellite image showing the 1983 Pacific "El Nino" event. Pacific El Nino events occur when the cold South Equatorial Current fails to reach as far north as the equator on the Pacific coast of South America, & they are associated with severe climatic changes. The image shows sea surface temperature in the Atlantic & eastern Pacific in July 1983, colour coded accord- ing to the scale beneath the image. A "tongue" of cold water reaches the equator on the Atlantic coast of Africa, but there is no equivalent tongue of cold water on the Pacific coast of South America. Compare with E265/002, which clearly shows such a tongue in the normal year of 1982.

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Keywords: el nino, false-coloured, noaa satellite imagery, south equatorial current

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