OceansWorld
Topic Author
Posts: 828
Joined: Mon Mar 12, 2007 8:00 am

Mars Pole Holds Enough Ice To Flood Planet

Sun Mar 18, 2007 4:31 am

Mars's southern polar ice cap contains enough water to cover the entire planet approximately 36 feet (11 meters) deep if melted, according to a new radar study.

http://news.nationalgeographic.com/news/2007/03/070315-mars-water.html

Although Mars is much smaller than Earth with a diameter 4,222 miles compared to the 7,926 miles of our own home planet, that's still pretty interesting.

Cheers.
 
Yellowstone
Posts: 2821
Joined: Wed Aug 16, 2006 3:32 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Sun Mar 18, 2007 5:55 am

Anyone up for some terraforming?
Hydrogen is an odorless, colorless gas which, given enough time, turns into people.
 
Blackbird
Posts: 3384
Joined: Wed Oct 06, 1999 10:48 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Sun Mar 18, 2007 6:02 am

That has me wondering... will the oceans only rise 30 or 300 feet if the ice-caps melt here?

Andrea Kent
 
Klaus
Posts: 20649
Joined: Wed Jul 11, 2001 7:41 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Sun Mar 18, 2007 6:30 am

Quoting Yellowstone (Reply 1):
Anyone up for some terraforming?

You'd still be one atmosphere short for that...!
 
ArmitageShanks
Posts: 3766
Joined: Tue Dec 30, 2003 5:30 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Sun Mar 18, 2007 6:30 am

Would the thin atmosphere cause that water to evaporate relatively rapidly?
 
Klaus
Posts: 20649
Joined: Wed Jul 11, 2001 7:41 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Sun Mar 18, 2007 6:40 am

Quoting ArmitageShanks (Reply 4):
Would the thin atmosphere cause that water to evaporate relatively rapidly?

As far as I understand it, the almost nonexistent pressure would severely lower the boiling point indeed, but the extreme cold would make it freeze and snow out, which is probably how it came to rest in its current state and place... It's all a matter of certain threshold temperatures and pressures.

You'd probably need the atmosphere first to get a proper greenhouse effect going (stronger than on earth because of the larger distance to the sun) before the water would be able to melt and stay liquid on the surface.
 
traveler_7
Posts: 448
Joined: Tue May 23, 2000 12:45 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Tue Mar 20, 2007 12:18 am

Quoting Klaus (Reply 5):
You'd probably need the atmosphere first to get a proper greenhouse effect going (stronger than on earth because of the larger distance to the sun) before the water would be able to melt and stay liquid on the surface.

I do not think that OceansWorld's idea is change climate on Mars. Most probably the original point was that there is enough water to support the colony or at least some permanent base?
 
Klaus
Posts: 20649
Joined: Wed Jul 11, 2001 7:41 am

RE: Mars Pole Holds Enough Ice To Flood Planet

Tue Mar 20, 2007 4:27 am

Quoting Traveler_7 (Reply 6):
I do not think that OceansWorld's idea is change climate on Mars. Most probably the original point was that there is enough water to support the colony or at least some permanent base?

Sure, that is the only practical conclusion at this point. Terraforming is certainly not a realistic option at this point; It's merely a theoretical consideration.
 
Banco
Posts: 14343
Joined: Mon Oct 29, 2001 11:56 pm

RE: Mars Pole Holds Enough Ice To Flood Planet

Tue Mar 20, 2007 4:29 am

Quoting Klaus (Reply 5):
You'd probably need the atmosphere first to get a proper greenhouse effect going

This could be a job for Ryanair. All that hot air to begin with, then....  Wink
She's as nervous as a very small nun at a penguin shoot.

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