Re:Watering and draining planets – math and data
by Bobylonian on Monday October 04, 2021 @02:12AM
(#28743600)
I somehow expected that this article would talk about technical issues on how to deliver water to planets and how to drain them and where to put that water.
To be fair, if all ice would melt, neither Greenland nor Antarctic would have hole - crust would rebound due to ice removal. Another thing - most of the melted water would flow to equator, so there should be adjusted loss to flooding in northern regions and even more calculated to equator regions.
Re:Watering and draining planets – math and data
by imachine1980_ on Monday October 04, 2021 @07:40AM
(#28745428)
i don't know that much about the topic why the water go to the equator, pleas some good resource about the topic, search for this is kind a mess full of fakenews and yellow press.
Re:Watering and draining planets – math and data
by standardly on Monday October 04, 2021 @11:52AM
(#28748333)
Could be centrifugal force due to the earths rotation but more likely has something to do with temperature. Could be a combination of both. I'm just guessing though
So, it could be quite possible, that even with sea level rise, crust rebound will play bigger role around poles and there might be some new lands in the sea around north pole - as it is quite shallow ocean near Russia and Canada.
Re:Watering and draining planets – math and data
by mikro2nd on Monday October 04, 2021 @06:56AM
(#28745176)
You're right, of course, but I still found it fascinating and inspiring to get some idea of what Venus would look like with seas (and a reasonable temperature to make that possible, no doubt). For me it doesn't need to be correct in every detail. Just like reading a novel, my willing suspension of disbelief can handle this level of "fantasy"/speculation.
It's a beautiful image of Venus-in-a-next-door-cosmos anyway.
Re:Watering and draining planets – math and data
by EdwardDiego on Monday October 04, 2021 @01:21AM
(#28743360)
Same way that the northern hemisphere of Mars is a lot lower than the southern hemisphere - crustal thickness.
The far side has a thicker crust than the near side, apparently due to the effect of earthshine from the molten earth on the near side early in the Moon's history.
To be fair, if all ice would melt, neither Greenland nor Antarctic would have hole - crust would rebound due to ice removal. Another thing - most of the melted water would flow to equator, so there should be adjusted loss to flooding in northern regions and even more calculated to equator regions.
It was observed in other planets first: https://en.wikipedia.org/wiki/Planetary_coordinate_system#Eq...
https://en.wikipedia.org/wiki/Post-glacial_rebound
So, it could be quite possible, that even with sea level rise, crust rebound will play bigger role around poles and there might be some new lands in the sea around north pole - as it is quite shallow ocean near Russia and Canada.
It's a beautiful image of Venus-in-a-next-door-cosmos anyway.
Is it because of a tidal effect or something due to the nearby Earth? Would the same thing happen to water on the moon?
The far side has a thicker crust than the near side, apparently due to the effect of earthshine from the molten earth on the near side early in the Moon's history.