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Image: Sea surface temperature & chlorophyll concentrations off the Galapagos archipelago

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Description: 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.
Title: Sea surface temperature & chlorophyll concentrations off the Galapagos archipelago
Credit: NASA Earth Observatory
Author: Robert Simmon and Jesse Allen
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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