Models rely on assumptions about the Earth's internal viscosity. Changes in these parameters can significantly alter model fit and predictions for regions like Alaska.
Global median relative uncertainty in GIA gravity rates is estimated at roughly 44%, driven by limitations in our knowledge of ice history and Earth's rheology. gia grace
In Antarctica, GIA can account for up to 50% of the total mass change signal, making precise GIA models critical for accurate climate assessment. 3. Key Research Areas & Applications Models rely on assumptions about the Earth's internal
GIA influences the movement of Earth's center of mass (the geocenter), which shifted by approximately 0.4 mm per year between 2003 and 2016. 4. Current Challenges in Modeling In Antarctica, GIA can account for up to
GIA-corrected GRACE data helps determine that land-to-ocean freshwater exchange has contributed roughly 1.2 mm per year to global sea level rise.