Gregory's ServerAntarctica for day 2️⃣ 5️⃣ of #30DayMapChallenge : a fanciful conjecture based on NISDC bedrock data. Subsidiary title should read "nor isostatic rebound nor sea level rise".
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 @SK53 @atthenius Is it without ice really such an archipelago at current sea levels? I had always assumed it was a bit more … solid. 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. @atthenius @SK53 very cool (the concepts, not the sea level rise), thanks for the explanation. |
@SK53 nor gravitationnal and rotational effects due to ice sheet mass loss!