North and Northeast Greenland Ice Discharge from Satellite Radar Interferometry

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Science  09 May 1997:
Vol. 276, Issue 5314, pp. 934-937
DOI: 10.1126/science.276.5314.934

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Ice discharge from north and northeast Greenland calculated from satellite radar interferometry data of 14 outlet glaciers is 3.5 times that estimated from iceberg production. The satellite estimates, obtained at the grounding line of the outlet glaciers, differ from those obtained at the glacier front, because basal melting is extensive at the underside of the floating glacier sections. The results suggest that the north and northeast parts of the Greenland ice sheet may be thinning and contributing positively to sea-level rise.

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