Summary
We have examined contemporary changes in the geoid about Greenland that result from glacial-isostatic adjustment. These may be divided into contributions from ice-load changes that occurred outside of Greenland following the Last Glacial Maximum and changes in the Greenland Ice Sheet (GIS). The GIS's contribution may itself be divided into past and current parts. For past ice-load changes, the resulting geoid displacement is more dependent upon the recent history of the GIS than on the earth model used. Considering an estimated accuracy for the GRACE temporal geoid signal, regional variability in the present-day mass balance of the GIS may be resolved. This variability significantly affects the geoid power spectrum, giving a signal that may be detected by measurements from gravity space missions more easily than has been proposed by other authors.
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© 2005 Springer-Verlag Berlin Heidelberg
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Fleming, K., Martinec, Z., Hagedoorn, J., Wolf, D. (2005). Contemporary Changes in the Geoid About Greenland: Predictions Relevant to Gravity Space Missions. In: Reigber, C., Lühr, H., Schwintzer, P., Wickert, J. (eds) Earth Observation with CHAMP. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-26800-6_35
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DOI: https://doi.org/10.1007/3-540-26800-6_35
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