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Sea Ice Minimum Concentration 3-year moving averages for 1979-1981 to 2004-2006

Sea ice is frozen seawater floating on the surface of the ocean. Some sea ice is semi-permanent, persisting from year to year, and some is seasonal, melting and refreezing from season to season. The sea ice cover reaches its minimum extent at the end of each summer and the remaining ice is called the perennial ice cover. This animation shows a 3-year moving average of the perennial ice cover, or minimum sea ice concentration, for from 1979-1981 through 2004-2006. The area of the perennial ice has been steadily decreasing since the satellite record began in 1979, at a rate of about 10% per decade. This decrease is evident in the animation shown here.

This is an update of animation ID #3267.


Sea ice concentration3-year moving average from 1979-1981 through 2004-2006.
   Sea ice concentration3-year moving average from 1979-1981 through 2004-2006.
Duration: 22.0 seconds
Available formats:
  320x180     PNG           199 KB
  160x80       PNG           52 KB
  80x40         PNG           14 KB
  1280x720 (30 fps) Frames
  1280x720 (30 fps) MPEG-2   12 MB
  512x288 (30 fps) MPEG-1   3 MB
  1280x720 (30 fps) MPEG-4   2 MB
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Sea ice concentration 3-year average from 1979-1981
   Sea ice concentration 3-year average from 1979-1981

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 285 KB


Sea ice concentration 3-year average from 1989-1982    Sea ice concentration 3-year average from 1989-1982

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 285 KB


Sea ice concentration 3-year average from 1981-1983    Sea ice concentration 3-year average from 1981-1983

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 284 KB


Sea ice concentration 3-year average from 1982-1984    Sea ice concentration 3-year average from 1982-1984

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 284 KB


Sea ice concentration 3-year average from 1983-1985    Sea ice concentration 3-year average from 1983-1985

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 283 KB


Sea ice concentration 3-year average from 1984-1986    Sea ice concentration 3-year average from 1984-1986

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  320 x 240         PNG 284 KB


Sea ice concentration 3-year average from 1985-1987    Sea ice concentration 3-year average from 1985-1987

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  320 x 240         PNG 285 KB


Sea ice concentration 3-year average from 1986-1988    Sea ice concentration 3-year average from 1986-1988

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  320 x 240         PNG 286 KB


Sea ice concentration 3-year average from 1987-1989    Sea ice concentration 3-year average from 1987-1989

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 289 KB


Sea ice concentration 3-year average from 1988-1990    Sea ice concentration 3-year average from 1988-1990

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  320 x 240         PNG 290 KB


Sea ice concentration 3-year average from 1989-1991    Sea ice concentration 3-year average from 1989-1991

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  320 x 240         PNG 288 KB


Sea ice concentration 3-year average from 1990-1992    Sea ice concentration 3-year average from 1990-1992

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 286 KB


Sea ice concentration 3-year average from 1991-1993
   Sea ice concentration 3-year average from 1991-1993

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 287 KB


Sea ice concentration 3-year average from 1992-1994    Sea ice concentration 3-year average from 1992-1994

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 286 KB


Sea ice concentration 3-year average from 1993-1995    Sea ice concentration 3-year average from 1993-1995

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 288 KB


Sea ice concentration 3-year average from 1994-1996    Sea ice concentration 3-year average from 1994-1996

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 289 KB


Sea ice concentration 3-year average from 1995-1997    Sea ice concentration 3-year average from 1995-1997

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 288 KB


Sea ice concentration 3-year average from 1996-1998    Sea ice concentration 3-year average from 1996-1998

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 289 KB


Sea ice concentration 3-year average from 1997-1999    Sea ice concentration 3-year average from 1997-1999

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 287 KB


Sea ice concentration 3-year average from 1998-2000    Sea ice concentration 3-year average from 1998-2000

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 288 KB


Sea ice concentration 3-year average from 1999-2001    Sea ice concentration 3-year average from 1999-2001

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  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 288 KB


Sea ice concentration 3-year average from 2000-2002
   Sea ice concentration 3-year average from 2000-2002

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 288 KB


Sea ice concentration 3-year average from 2001-2003
   Sea ice concentration 3-year average from 2001-2003

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 287 KB


Sea ice concentration 3-year average from 2002-2004
   Sea ice concentration 3-year average from 2002-2004

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 285 KB


Sea ice concentration 3-year average from 2003-2005
   Sea ice concentration 3-year average from 2003-2005

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 286 KB


Sea ice concentration 3-year average from 2004-2006
   Sea ice concentration 3-year average from 2004-2006

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         PNG 284 KB

Animation Number:3445
Animators:Cindy Starr (SVS) (Lead)
 Greg Shirah (SVS)
Completed:2007-08-24
Scientist:Josefino Comiso (NASA/GSFC)
Instrument:DMSP/SSMI
Data sets:Blue Marble landcover
 GTOPO30
 Comiso's September Minimum Sea Ice Concentration
Data Collected:1979-2006
Keywords:
DLESE >> Cryology
SVS >> HDTV
GCMD >> EARTH SCIENCE >> Cryosphere
GCMD >> EARTH SCIENCE >> Cryosphere >> Sea Ice
GCMD >> EARTH SCIENCE >> Oceans >> Sea Ice
GCMD >> EARTH SCIENCE >> Cryosphere >> Sea Ice >> Ice Extent
GCMD >> EARTH SCIENCE >> Cryosphere >> Sea Ice >> Sea Ice Concentration
GCMD >> EARTH SCIENCE >> Cryosphere >> Snow/Ice >> Ice Extent
GCMD >> EARTH SCIENCE >> Oceans >> Sea Ice >> Ice Extent
 
 
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NASA/Goddard Space Flight Center Scientific Visualization Studio


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