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How much land floods if the sea rises, or seafloor dries if it falls?

The share of land flooded by a rise in sea level, or of seafloor laid dry by a fall, from ETOPO 2022 terrain.

m

A rise is positive and a fall is negative. Today’s sea level is 0. From −10,935 to 8,848 m.

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Land left

29.2 %

At today’s sea level, 29.2 % of Earth’s surface is land.

Ocean water left
100 %
Seafloor laid dry
0 %

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How it is worked out

change_m = 0: today’s values (LAND(0) = 0.29225348ocean = 1.3375e9 km³)
Address
https://clipwright.studio/tools/sea-level-rise?change_m=0

Anyone who opens this address sees the same answer.

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