Some food for thought...(of course I cant quantitate any of this speculation)
You have miles of ice on top of Antarctica..basically pushing the continent down into the ocean.
As that ice melts ...rising the ocean.
Antarctica will also rise...contributing to more (or less) ocean rise?
Antarctica Is Getting Taller, and Here’s Why
Quote
Mindy Weisberger
Estimates of ice loss in Antarctica depend on satellite measurements of gravity in localized areas, which can be affected by significant changes in mass. If the bedrock under Antarctica is rapidly adjusting in response to ice loss, its uplift would register in gravity measurements, compensating for some ice loss and obscuring just how much ice has truly disappeared by about 10 percent, according to the study.