Sea ice lowest amount on record in satellite era - Tucson News Now

Sea ice lowest amount on record in satellite era

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The following is a news release from NASA.

This visualization {images below} shows the extent of Arctic sea ice on Aug. 26, 2012, the day the sea ice dipped to its smallest extent ever recorded in more than three decades of satellite measurements, according to scientists from NASA and the National Snow and Ice Data Center.

The data is from the U.S. Defense Meteorological Satellite Program's Special Sensor Microwave/Imager.

The line on the image shows the average minimum extent from the period covering 1979-2010, as measured by satellites.

Every summer the Arctic ice cap melts down to what scientists call its "minimum" before colder weather builds the ice cover back up.

The size of this minimum remains in a long-term decline.

The extent on Aug. 26, 2012 broke the previous record set on Sept. 18, 2007.

But the 2012 melt season could still continue for several weeks. 

 

The sea ice concentration from August 26, 2012 compared to the average sea ice minimum from 1979 through 2010 shown in orange.     The sea ice concentration from August 26, 2012 compared to the average sea ice minimum from 1979 through 2010 shown in orange. 

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  160 x 80           PNG       57 KB 
  80 x 40             PNG       18 KB 


The sea ice concentration from August 26, 2012 with transparency.    The sea ice concentration from August 26, 2012 with transparency.

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  320 x 180         PNG     199 KB 


The 2012 overlay showing the land area, average sea ice minimum line and date with transparency.    The 2012 overlay showing the land area, average sea ice minimum line and date with transparency.

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  1280 x 720       TIFF   960 KB 
  320 x 180         PNG     130 KB 


The sea ice concentration from September 21, 1979 compared to the average sea ice minimum from 1979 through 2010 shown in orange.     The sea ice concentration from September 21, 1979 compared to the average sea ice minimum from 1979 through 2010 shown in orange. 

Available formats:
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  1280 x 720       TIFF       1 MB 
  320 x 180         PNG     208 KB 


The minimum sea ice from September 21, 1979.    The minimum sea ice from September 21, 1979.

Available formats:
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  1280 x 720       TIFF       1 MB 
  320 x 180         PNG     201 KB 


The 1979 overlay showing the land area, average sea ice minimum line and date with transparency.    The 1979 overlay showing the land area, average sea ice minimum line and date with transparency.

Available formats:
  1920 x 1080     TIFF       1 MB 
  1280 x 720       TIFF   960 KB 
  320 x 180         PNG     130 KB 

Short URL to This Page: http://svs.gsfc.nasa.gov/goto?3977
Animation Number: 3977
Completed: 2012-08-27
Animators: Cindy Starr (GST) (Lead)
  Greg Shirah (NASA/GSFC)
  Lori Perkins (NASA/GSFC)
Producer: Jefferson Beck (USRA)
Scientists: Josefino Comiso (NASA/GSFC)
  Robert Gersten (RSIS)
Project and Technical Support: Laurence Schuler (ADNET Systems, Inc.)
  Ian Jones (ADNET Systems, Inc.)
Platforms/Sensors/Data Sets: DMSP/SSMI/Comiso's Average Sea Ice Minimum from 1979 through 2010 (1979 - 2010)
  DMSP/SSM/I (1979 - 2010, 2012)
  Comiso's Daily Sea Ice Concentration (08/26/2012)
 
 
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio 
The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).
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