Start Date: End Date: Published Date Data Date
North Pole Sea Ice Minimum 2009
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Published September 19, 2009
On September 12, 2009, sea ice reached its annual minimum extent, covering 5.10 million square kilometers (2.97 million square miles) of the Arctic Ocean. This image shows the 2009 ice extent compared to the 1979-2000 average.
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El Nino Conditions Set in Across Pacific Ocean
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Published July 28, 2009
A patch of warmer than average ocean temperatures in the eastern Pacific on July 26, 2009, revealed the onset of El Niño conditions.
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South Pole Sea Ice at 2008 Maximum and 2009 Minimum
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Published May 23, 2009
This pair of images shows Antarctic sea ice concentrations at the 2008 winter maximum and the 2009 summer minimum compared to the median ice extent from 1979–2000.
Arctic Sea Ice, 2002-2003
Published May 16, 2009
Compiled from passive microwave sensor data, these images show Arctic sea ice extent for September 2002 and March 2003.
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Sea Ice Ebbs and Flows
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Published April 21, 2009
These satellite-based maps show sea ice concentration in the Arctic and Antarctic during September 2008 and February 2009, the months of the sea ice maximums and minimums in the respective hemispheres.
Sea Ice Extent as the Equinox Approaches
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Published March 21, 2009
Arctic sea ice reaches its maximum extent in mid-March, around the time of the Vernal Equinox. After the Equinox, sunlight shines at the North Pole constantly until fall, and the sea ice will gradually decline.
Sea Surface Temperature and Hurricane Bertha
Published July 26, 2008
On land, the passage of a severe storm might be marked by fallen trees or swollen streams. In the ocean, a hurricane leaves a swath of cold water in its path. That trail of cold water marks the passage of Hurricane Bertha through the North Atlantic Ocean in this sea surface temperature image.
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