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Elevation Change of the Southern Greenland Ice Sheet

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Science  27 Mar 1998:
Vol. 279, Issue 5359, pp. 2086-2088
DOI: 10.1126/science.279.5359.2086

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Abstract

Seasat and Geosat satellite altimeter measurements for the Greenland ice sheet (south of 72°N latitude) show that surface elevations above 2000 meters increased at an average rate of only 1.5 ± 0.5 centimeters per year from 1978 to 1988. In contrast, elevation changes varied regionally from –15 to +18 centimeters per year, seasonally by ±15 centimeters, and interannually by ±8 centimeters. The average growth rate is too small to determine if the Greenland ice sheet is undergoing a long-term change due to a warmer polar climate.

  • * To whom correspondence should be addressed. E-mail: curt{at}polar.cuep.umkc.edu

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