Observed hemispheric asymmetry in global sea ice changes
- NASA Goddard Space Flight Center, Greenbelt, MD (United States)
From November 1978 through December 1996, the areal extent of sea ice decreased by 2.9 {+-} 0.4 percent decade in the Arctic and increased by 1.3 {+-} 0.2 percent per decade in the Antarctic. The observed hemispheric asymmetry in these trends is consistent with a modeled response to a carbon dioxide-induced climate warming. The interannual variations, which are 2.3 percent of the annual mean in the Arctic, with a predominant period of about 5 years, and 3.4 percent of the annual mean in the Antarctic, with a predominant period of about 3 years, are uncorrelated. 29 refs., 2 figs., 1 tab.
- OSTI ID:
- 569286
- Journal Information:
- Science, Vol. 278, Issue 5340; Other Information: PBD: 7 Nov 1997
- Country of Publication:
- United States
- Language:
- English
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