but gravity measurements of ice-mass loss are  complicated by glacial isostatic adjustments—compensation for the rise or fall of the underlying crustal material.
but gravity measurements of ice-mass loss are  complicated by glacial isostatic adjustments—compensation for the rise or fall of the underlying crustal material.
post-glacial rebound:105
mass changes of ice sheets can be monitored by measuring changes in the ice surface height, the deformation of the ground below and the changes in the gravity field over the ice sheet.