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.
The GRACE satellites detect gravity changes, but they cannot distinguish between mass changes on the surface (like melting glaciers) and mass changes deep inside the Earth (like the solid ground rising due to GIA). 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. gia grace