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

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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 (Upwelling). 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.
Français : Le courant de Cromwell, actif du côté ouest (sous le vent) des Galapagos, apporte de l’eau fraîche et riche en nutriments des profondeurs de l’océan (upwelling). Ces nutriments nourrissent le phytoplancton, qui constitue la base du réseau trophique de l'océan. De nombreux poissons, oiseaux et mammifères marins dépendent du phytoplancton. L'image du bas montre la température de la surface de la mer, les eaux froides en violet. Les populations de phytoplancton en plein essor sont indiquées par des concentrations élevées de chlorophylle (image du haut), colorées en vert et en jaune. Images acquises le 2 mars 2009.
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Source NASA Earth Observatory
Author Robert Simmon and Jesse Allen

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

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Public domain This file is in the public domain in the United States 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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current09:51, 18 July 2009Thumbnail for version as of 09:51, 18 July 2009720 × 837 (153 KB)Originalwana (talk | contribs){{Information |Description={{en|1=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

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