A Better Global Thermometer

Credit: NASA Goddard Space Flight Center; MODIS; Jacques Descloitres, Posted on: Friday, 1 August 2003, 06:00 CDT Download full size image

Cold water upwelling near the coast of Peru (purple) and joining the South Equatorial Current, which flows westward across the Pacific Ocean. This MODIS sea surface temperature image shows the ocean in normal conditions.

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