Snowfall-Driven Growth in East Antarctic Ice Sheet Mitigates Recent Sea-Level Rise

Author:

Davis Curt H.1234,Li Yonghong1234,McConnell Joseph R.1234,Frey Markus M.1234,Hanna Edward1234

Affiliation:

1. Department of Electrical and Computer Engineering, University of Missouri–Columbia, Columbia, MO 65211, USA.

2. Desert Research Institute, University and Community College System of Nevada, Reno, NV 89512, USA.

3. Department of Hydrology and Water Resources, University of Arizona, Tucson, AZ 85721, USA.

4. Department of Geography, University of Sheffield, Sheffield S10 2TN, UK.

Abstract

Satellite radar altimetry measurements indicate that the East Antarctic ice-sheet interior north of 81.6°S increased in mass by 45 ± 7 billion metric tons per year from 1992 to 2003. Comparisons with contemporaneous meteorological model snowfall estimates suggest that the gain in mass was associated with increased precipitation. A gain of this magnitude is enough to slow sea-level rise by 0.12 ± 0.02 millimeters per year.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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