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File:Sea surface temperature & chlorophyll concentrations off the Galapagos archipelago.jpg


English: The Cromwell Current stirs up the ocean on the west (leeward) side of the Galapagos, and brings cool, nutrient-rich water up from the ocean depths. The nutrients nourish phytoplankton, which form the base of the ocean’s food web. Many fish, birds, and marine mammals depend on the phytoplankton. The bottom image shows sea surface temperature, cool up welling waters are coloured purple. Thriving phytoplankton populations are indicated by high chlorophyll concentrations (top image), coloured green and yellow. Images acquired on March 2, 2009.
Date 18 July 2009
Source NASA Earth Observatory
Author Robert Simmon and Jesse Allen

Images acquired by NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite.


Public domain This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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