Computer Science
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sci...316..881t&link_type=abstract
Science, Volume 316, Issue 5826, pp. 881- (2007).
Computer Science
36
Scientific paper
The free-air gravity trend over Canada, derived from the Gravity Recovery and Climate Experiment (GRACE) satellite mission, robustly isolates the gravity signal associated with glacial isostatic adjustment (GIA) from the longer-time scale mantle convection process. This trend proves that the ancient Laurentian ice complex was composed of two large domes to the west and east of Hudson Bay, in accord with one of two classes of earlier reconstructions. Moreover, GIA models that reconcile the peak rates contribute ~25 to ~45% to the observed static gravity field, which represents an important boundary condition on the buoyancy of the continental tectosphere.
Davis Joshua L.
Mitrovica Jerry X.
Tamisiea Mark E.
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