Recent Greenland Ice Mass Loss by Drainage System from Satellite Gravity Observations-Reference-Cited by-同舟云学术

Recent Greenland Ice Mass Loss by Drainage System from Satellite Gravity Observations

Published:2006-11-24 Issue:5803 Volume:314 Page:1286-1289
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Luthcke S. B.¹²³⁴,Zwally H. J.¹²³⁴,Abdalati W.¹²³⁴,Rowlands D. D.¹²³⁴,Ray R. D.¹²³⁴,Nerem R. S.¹²³⁴,Lemoine F. G.¹²³⁴,McCarthy J. J.¹²³⁴,Chinn D. S.¹²³⁴

Affiliation:

1. Planetary Geodynamics Laboratory, Code 698, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

2. Cryospheric Sciences Branch, Code 614.1, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

3. Colorado Center for Astrodynamics Research, Cooperative Institute for Research in Environmental Sciences, Department of Aerospace Engineering Sciences, University of Colorado, Boulder, CO 80309, USA.

4. Science Division, SGT Incorporated, Greenbelt, MD 20770, USA.

Abstract

Mass changes of the Greenland Ice Sheet resolved by drainage system regions were derived from a local mass concentration analysis of NASA–Deutsches Zentrum für Luftund Raumfahrt Gravity Recovery and Climate Experiment (GRACE mission) observations. From 2003 to 2005, the ice sheet lost 101 ± 16 gigaton/year, with a gain of 54 gigaton/year above 2000 meters and a loss of 155 gigaton/year at lower elevations. The lower elevations show a large seasonal cycle, with mass losses during summer melting followed by gains from fall through spring. The overall rate of loss reflects a considerable change in trend (–113 ± 17 gigaton/year) from a near balance during the 1990s but is smaller than some other recent estimates.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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