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I'm not really informed about the topic, but I noticed that the Bothnian Bay (the northern bay of the Baltic Sea between Finland and Sweden) is coloured red. Th
by filleokus 9y ago
I'm not really informed about the topic, but I noticed that the Bothnian Bay (the northern bay of the Baltic Sea between Finland and Sweden) is coloured red. The seabed underneath the Botnia Bay has been rising since the end of the ice age (https://en.wikipedia.org/wiki/Bothnian_Bay#Isostatic_rebound https://en.wikipedia.org/wiki/Bothnian_Bay#Isostatic_rebound). Has this not been corrected for in the map (which would explain the red colour), or is it simply a coincidence, and the absolute water level has been rising there as well?
- yorwba 9y agoI'm not sure what kind of "correction" you'd expect? A rising sea floor should in general be associated with a (small) rise in water levels as well, although the depth would still fall. This is due to the gravity of the rocks attracting the water.