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Detailed Reference Information |
Fleming, K., Martinec, Z. and Hagedoorn, J. (2004). Geoid displacement about Greenland resulting from past and present-day mass changes in the Greenland Ice Sheet. Geophysical Research Letters 31: doi: 10.1029/2004GL019469. issn: 0094-8276. |
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Predictions are presented of secular changes in the geoid arising from glacial-isostatic adjustment (GIA) following the Last Glacial Maximum and from present-day mass changes in the Greenland Ice Sheet (GIS). Geoid displacement from ongoing GIA is dominated by ice-load changes outside of Greenland at lower spherical-harmonic degrees (2000 m). Spatial variability is noted when the present-day GIS response is expanded to degree and order 32. This is detectable by GRACE when assuming an optimistic accuracy, but is too small by a factor of ca. 3 for an alternate accuracy estimate. Present-day GIS geoid displacement rates are generally less than the equivalent response from ice-mass changes in Antarctica, Patagonia and Alaska. |
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Abstract |
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Keywords
Geodesy and Gravity, General or miscellaneous, Global Change, Solid Earth, Hydrology, Glaciology |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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