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Life Returns to the Galapagos after El Nino (WMS)

During the El Nino in 1997 and 1998, the surface water in the eastern equatorial Pacific off the coast of South America was warmer than normal. This warm water trapped the ocean nutrients that normally come to the surface in the upwelling cold water, leading to a drastic decrease in phytonplankton and other ocean life in the region. The unique Galapagos ecosystem was severely affected and many species, including sea lions, seabirds, and barracudas, suffered a very high mortality level. During the second week of May, 1998, the ocean temperatures plummeted 10 degrees in one day, and the ocean productivity exploded with large phytoplankton blooms. After this time, many species recovered very rapidly and the land species started to reproduce immediately. The SeaWiFS instrument, which monitors global phytoplankton in the oceans by measuring the color of reflected light, caught this dramatic recovery. This visualization shws images from SeaWiFS starting on May 10, 1998 and ending on May 31, 1998, where ocean colors of blue or purple represents little or no ocean life and colors or yellow and red indicate significant ocean productivity. White and gray denote areas occluded by clouds in these images, and a relief image of the Galapagos Islands has been superimposed on the images to clarify the location of the islands.
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SeaWiFS recorded the recovery of ocean life around the Galapagos Islands during May, 1998.    SeaWiFS recorded the recovery of ocean life around the Galapagos Islands during May, 1998.
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This legend shows the concentrations of chlorophyll in the ocean.
   This legend shows the concentrations of chlorophyll in the ocean.

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Animation Number:2913
Animators:Horace Mitchell (NASA/GSFC) (Lead)
 Marte Newcombe (GST)
Scientist:Gene Feldman (NASA/GSFC)
Platform/Sensor/Data Set:SeaStar/SeaWiFS (1998/05/10, 1998/05/18, 1998/05/22, 1998/05/22, 1998/05/24, 1998/05/29, 1998/05/31)
Please give credit for this item to:
NASA/Goddard Space Flight Center, The SeaWiFS Project and GeoEye, Scientific Visualization Studio. NOTE: All SeaWiFS images and data presented on this web site are for research and educational use only. All commercial use of SeaWiFS data must be coordinated with GeoEye (
DLESE >> Biological oceanography
SVS >> Biosphere
DLESE >> Ecology
SVS >> El Nino
GCMD >> Earth Science >> Biosphere >> Microbiota Taxonomy >> Phytoplankton
GCMD >> Earth Science >> Climate Indicators >> Teleconnections >> El Nino Southern Oscillation
GCMD >> Earth Science >> Oceans >> Ocean Optics >> Ocean Color
SVS >> For Educators
SVS >> Food Supply
SVS >> Galapagos Islands
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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version logo - the U.S. Government's official Web portal. + Privacy Policy and Important Notices
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