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Brendan Jones

@SK53 @atthenius Is it without ice really such an archipelago at current sea levels? I had always assumed it was a bit more … solid.

2 comments
legraLeGra

@Brendanjones @SK53

The grounding line in many spots in Antarctica is below sea level: scary :-/

But, given enough time (millennia), the land would ‘rise’ w/o the load of ice on top of it (isostatic rebound*)… but, w/o that ice-load, seas would be 50’s meters-ish higher.

Isostatic rebound: think about it like continents floating on a sea of mantle (so they must have keels)… and ice sheets are like huge foam blocks on top, pushing the whole boat below ‘surface’. That’ll rebound in time.

Brendan Jones

@atthenius @SK53 very cool (the concepts, not the sea level rise), thanks for the explanation.

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