Mathematics – Logic
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufm.u21b0815s&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #U21B-0815
Mathematics
Logic
1219 Gravity Anomalies And Earth Structure (0920, 7205, 7240), 9310 Antarctica (4207)
Scientific paper
The Gravity Recovery and Climate Experiment (GRACE) was launched by NASA in 2002 providing an unprecedented opportunity to map time-variable gravity on our planet. Global in scope, these data have also provided a first look at the gravity field in the untouched interior of East Antarctica to 89 degrees South. Based on time-averaged monthly GRACE solutions, the static gravity field enables us to interpret long wavelength structures of the crust including subglacial topography, basin morphologies and changes in crustal thickness at a resolution higher than the standard GRACE product. Thus, analysis of GRACE data provides a tectonic framework for interpretation of ongoing and future geologic or geophysical studies of the continental interior. Here we present the latest maps of the static gravity field over Antarctica. In addition to tectonic-process- oriented interpretations of these data, a new model of the continent's subglacial topography has been calculated. This model can be applied to current science questions in fields including glaciology and landscape evolution.
Bell Ray
Smith Andrew E.
Velicogna Isabella
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