| Sea Ice Yearly Minimum 1979-2007 |
| In 2007, Arctic summer sea ice reached its lowest extent on record – nearly 25% less than the previous low set in 2005. At the end of each summer, the sea ice cover reaches its minimum extent and what is left is what is called the perennial ice cover which consists mainly of thick multi-year ice floes. 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. But the 2007 minimum, reached on September 14, is far below the previous record made in 2005 and is about 38% lower than the climatological average. Such a dramatic loss has implications for ecology, climate and industry as new shipping lanes open.This visualization shows the annual Arctic sea ice minimum from 1979 to 2007. A graph is overlaid that shows the area in million square kilometers for each year’s minimum day. The ‘previous record’ and the ’2007′ record are highlighted. |
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Annual Arctic sea ice minimum for 1979 to 2007
Duration: 24.0 seconds
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1280×720 (30 fps) MPEG-4 7 MB
640×360 (30 fps) MPEG-4 2 MB
512×288 (30 fps) MPEG-1 3 MB
1280×720 (30 fps) MPEG-2 12 MB
1280×720 (30 fps) Frames (Composite)
1280×720 (30 fps) Frames (Dates overlay)
1280×720 (30 fps) Frames (Ice)
320×180 PNG 212 KB
160×80 PNG 55 KB
80×40 PNG 15 KB
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Overlay sequence: graph showing annual decline from 1979 to 2007
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1280×720 (30 fps) Frames (Graph overlay)
320×180 PNG 211 KB
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Overlay still: Minimum Arctice sea ice area trend from 1979 to 2007
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Overlay still: average Arctic aea ice concentration (filled) from 1979 to 2007
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Overlay still: average Arctic aea ice concentration (outline) from 1979 to 2007
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Print resolution still showing the 14 Sept 2007 sea ice minimum record and an overlay graph showing previous years
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14 September 2007 Arctic sea ice minimum area for 2007 (record minimum)
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14 September 2006 Arctic sea ice minimum area for 2006
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21 September 2005 Arctic sea ice minimum area for 2005
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11 September 2004 Arctic sea ice minimum area for 2004
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11 September 2003 Arctic sea ice minimum area for 2003
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12 September 2002 Arctic sea ice minimum area for 2002
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19 September 2001 Arctic sea ice minimum area for 2001
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11 September 2000 Arctic sea ice minimum area for 2000
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11 September 1999 Arctic sea ice minimum area for 1999
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12 September 1998 Arctic sea ice minimum area for 1998
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19 September 1997 Arctic sea ice minimum area for 1997
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10 September 1996 Arctic sea ice minimum area for 1996
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01 October 1995 Arctic sea ice minimum area for 1995
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05 September 1994 Arctic sea ice minimum area for 1994
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11 September 1993 Arctic sea ice minimum area for 1993
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04 September 1992 Arctic sea ice minimum area for 1992
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16 September 1991 Arctic sea ice minimum area for 1991
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19 September 1990 Arctic sea ice minimum area for 1990
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23 September 1989 Arctic sea ice minimum area for 1989
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12 September 1988 Arctic sea ice minimum area for 1988
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02 September 1987 Arctic sea ice minimum area for 1987
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06 September 1986 Arctic sea ice minimum area for 1986
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07 September 1985 Arctic sea ice minimum area for 1985
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16 September 1984 Arctic sea ice minimum area for 1984
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18 September 1983 Arctic sea ice minimum area for 1983
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17 September 1982 Arctic sea ice minimum area for 1982
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10 September 1981 Arctic sea ice minimum area for 1981
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05 September 1980 Arctic sea ice minimum area for 1980
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21 September 1979 Arctic sea ice minimum area for 1979
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What is Nasa’s Scientific Visualization Studio :
The mission of the Scientific Visualization Studio is to facilitate scientific inquiry and outreach within NASA programs through visualization. To that end, the SVS works closely with scientists in the creation of visualization products, systems, and processes in order to promote a greater understanding of Earth and Space Science research activities at Goddard Space Flight Center and within the NASA research community.
All the visualizations created by the SVS (currently totalling over 3,000) are accessible to you through this Web site. More recent animations are provided as MPEG-4s, MPEG-2s, and MPEG-1s. Some animations are available in high definition as well as NTSC format. Where possible, the original digital images used to make these animations have been made accessible. Lastly, high and low resolution stills, created from the visualizations, are included, with previews for selective downloading.
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