Originally published in
Science Express on 19 May 2005
Science 24 June 2005:
Vol. 308. no. 5730, pp. 1898 - 1901
DOI: 10.1126/science.1110662
Prev |
Table of Contents |
Next
Reports
Snowfall-Driven Growth in East Antarctic Ice Sheet Mitigates Recent Sea-Level Rise
Curt H. Davis,1* Yonghong Li,1 Joseph R. McConnell,2 Markus M. Frey,3 Edward Hanna4 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.
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.