Start Date: End Date: Published Date Data Date
El Niño Strengthens in November 2009
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Published December 11, 2009
These color-coded images show the strengthening of El Niño between October and November 2009. In the November image, warm waters (indicated in red) have spread across the Pacific.
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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
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.
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.