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Sea Ice Yearly Minimum with Graph Overlay 1979-2008

The continued significant reduction in the extent of the summer sea ice cover is a dramatic illustration of the pronounced impact increased global temperatures are having on the Arctic regions. There has also been a significant reduction in the relative amount of older, thicker ice. Satellite-based passive microwave images of the sea ice cover have provided a reliable tool for continuously monitoring changes in the extent of the Arctic ice cover since 1979. The ice parameters derived from satellite ice concentration data that are most relevant to climate change studies are sea ice extent and ice area. This visualization shows ice extent in the background and ice area in the foreground. Ice extent is defined here as the integrated sum of the areas of data elements (pixels) with at least 15% ice concentration while ice area is the integrated sum of the products of the area of each pixel and the corresponding ice concentration. Ice extent provides information about how far south (or north) the ice extends in winter and how far north (or south) it retreats toward the continent in the summer while the ice area provides the total area actually covered by sea ice which is useful for estimating the total volume and therefore mass, given the average ice thickness. For more information about these ice datasets, see The Journal of Geophysical Research VOL. 113, C02S07, doi:10.1029/2007JC004257, 2008
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Annual Arctic Sea Ice Minimum from 1979 to 2008.    Annual Arctic Sea Ice Minimum from 1979 to 2008.
Duration: 35.0 seconds
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Overlay sequence: graph showing annual trend from 1979 to 2008.    Overlay sequence: graph showing annual trend from 1979 to 2008.
Duration: 32.0 seconds
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Minimum Sea Ice Sequence with Date Overlay from 1979 to 2008.    Minimum Sea Ice Sequence with Date Overlay from 1979 to 2008.
Duration: 32.0 seconds
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Minimum Sea Ice Sequence from 1979 to 2008. This image is the Arctic sea ice minimum area during the week of September 12, 2008.    Minimum Sea Ice Sequence from 1979 to 2008. This image is the Arctic sea ice minimum area during the week of September 12, 2008.
Duration: 32.0 seconds
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Date Overlay from 1979 to 2008.    Date Overlay from 1979 to 2008.

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21 September 1979 Arctic sea ice minimum area for 1979    21 September 1979 Arctic sea ice minimum area for 1979

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05 September 1980 Arctic sea ice minimum area for 1980    05 September 1980 Arctic sea ice minimum area for 1980

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10 September 1981 Arctic sea ice minimum area for 1981    10 September 1981 Arctic sea ice minimum area for 1981

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17 September 1982 Arctic sea ice minimum area for 1982    17 September 1982 Arctic sea ice minimum area for 1982

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18 September 1983 Arctic sea ice minimum area for 1983    18 September 1983 Arctic sea ice minimum area for 1983

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16 September 1984 Arctic sea ice minimum area for 1984    16 September 1984 Arctic sea ice minimum area for 1984

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07 September 1985 Arctic sea ice minimum area for 1985    07 September 1985 Arctic sea ice minimum area for 1985

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06 September 1986 Arctic sea ice minimum area for 1986    06 September 1986 Arctic sea ice minimum area for 1986

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02 September 1987 Arctic sea ice minimum area for 1987    02 September 1987 Arctic sea ice minimum area for 1987

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12 September 1988 Arctic sea ice minimum area for 1988    12 September 1988 Arctic sea ice minimum area for 1988

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23 September 1989 Arctic sea ice minimum area for 1989    23 September 1989 Arctic sea ice minimum area for 1989

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19 September 1990 Arctic sea ice minimum area for 1990    19 September 1990 Arctic sea ice minimum area for 1990

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16 September 1991 Arctic sea ice minimum area for 1991    16 September 1991 Arctic sea ice minimum area for 1991

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04 September 1992 Arctic sea ice minimum area for 1992    04 September 1992 Arctic sea ice minimum area for 1992

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11 September 1993 Arctic sea ice minimum area for 1993    11 September 1993 Arctic sea ice minimum area for 1993

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05 September 1994 Arctic sea ice minimum area for 1994    05 September 1994 Arctic sea ice minimum area for 1994

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01 October 1995 Arctic sea ice minimum area for 1995    01 October 1995 Arctic sea ice minimum area for 1995

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10 September 1996 Arctic sea ice minimum area for 1996    10 September 1996 Arctic sea ice minimum area for 1996

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19 September 1997 Arctic sea ice minimum area for 1997    19 September 1997 Arctic sea ice minimum area for 1997

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12 September 1998 Arctic sea ice minimum area for 1998    12 September 1998 Arctic sea ice minimum area for 1998

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11 September 1999 Arctic sea ice minimum area for 1999    11 September 1999 Arctic sea ice minimum area for 1999

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11 September 2000 Arctic sea ice minimum area for 2000    11 September 2000 Arctic sea ice minimum area for 2000

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19 September 2001 Arctic sea ice minimum area for 2001    19 September 2001 Arctic sea ice minimum area for 2001

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12 September 2002 Arctic sea ice minimum area for 2002    12 September 2002 Arctic sea ice minimum area for 2002

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11 September 2003 Arctic sea ice minimum area for 2003    11 September 2003 Arctic sea ice minimum area for 2003



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11 September 2004 Arctic sea ice minimum area for 2004    11 September 2004 Arctic sea ice minimum area for 2004

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21 September 2005 Arctic sea ice minimum area for 2005    21 September 2005 Arctic sea ice minimum area for 2005

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14 September 2006 Arctic sea ice minimum area for 2006    14 September 2006 Arctic sea ice minimum area for 2006

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14 September 2007 Arctic sea ice minimum    14 September 2007 Arctic sea ice minimum

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Short URL to This Page:http://svs.gsfc.nasa.gov/goto?3563
Animation Number:3563
Completed:2008-10-27
Animators:Lori Perkins (NASA/GSFC) (Lead)
 Greg Shirah (NASA/GSFC)
 Cindy Starr (GST)
Scientist:Josefino Comiso (NASA/GSFC)
Platforms/Sensors/Data Sets:Comiso's September Minimum Sea Ice Concentration (1979 through 2008)
 DMSP/SSM/I (1979 through 2008)
Series:Arctic Annual Sea Ice Minimum with Graph Overlay
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio. Thanks to Rob Gerston (GSFC) for providing the data.
 
Keywords:
DLESE >> Cryology
SVS >> HDTV
SVS >> North Pole
SVS >> Perennial Ice
SVS >> Sea Ice
GCMD >> Earth Science >> Cryosphere >> Sea Ice
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Sea Ice Concentration
SVS >> iPod
SVS >> Climate Change
SVS >> Copenhagen
SVS >> For Educators
SVS >> Greenhouse Effect
SVS >> Line Graph
SVS >> Arctic Circle >> Ice
SVS >> Arctic Circle >> Glaciers
Science paper:Comiso, J. C., C. L. Parkinson, R. Gersten, and L. Stock, 2008: Accelerated decline in the Arctic sea ice cover. Geophys. Res. Lett., 35, L01703, doi:10.1029/2007GL031972.
 
 


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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 8.0.0.0.0

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