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

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. gia grace

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. In Antarctica, GIA can account for up to

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

To accurately measure current ice loss in Antarctica or Greenland, scientists must subtract the GIA signal from the total gravity signal measured by GRACE.

Researchers use various GIA models (often grouped into "fingerprints") to adjust GRACE data, but significant uncertainties remain.