Recent Ice-Sheet Growth in the Interior of Greenland-Reference-Cited by-同舟云学术

Recent Ice-Sheet Growth in the Interior of Greenland

Published:2005-11-11 Issue:5750 Volume:310 Page:1013-1016
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Johannessen Ola M.¹²³⁴⁵,Khvorostovsky Kirill¹²³⁴⁵,Miles Martin W.¹²³⁴⁵,Bobylev Leonid P.¹²³⁴⁵

Affiliation:

1. Mohn-Sverdrup Center for Global Ocean Studies and Operational Oceanography, Nansen Environmental and Remote Sensing Center, Bergen, 5006, Norway.

2. Geophysical Institute, University of Bergen, 5007, Norway.

3. Nansen International Environmental and Remote Sensing Center, St. Petersburg, 197101, Russia.

4. Bjerknes Centre for Climate Research, Bergen, 5007, Norway.

5. Environmental Systems Analysis Research Center, Boulder, CO 80303, USA.

Abstract

A continuous data set of Greenland Ice Sheet altimeter height from European Remote Sensing satellites (ERS-1 and ERS-2), 1992 to 2003, has been analyzed. An increase of 6.4 ± 0.2 centimeters per year (cm/year) is found in the vast interior areas above 1500 meters, in contrast to previous reports of high-elevation balance. Below 1500 meters, the elevation-change rate is –2.0 ± 0.9 cm/year, in qualitative agreement with reported thinning in the ice-sheet margins. Averaged over the study area, the increase is 5.4 ± 0.2 cm/year, or ∼60 cm over 11 years, or ∼54 cm when corrected for isostatic uplift. Winter elevation changes are shown to be linked to the North Atlantic Oscillation.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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