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Martian Hydrology
ngunn
post Nov 23 2010, 08:46 PM
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An interesting article from Space Daily today: http://www.marsdaily.com/reports/Shallow_G...n_Mars_999.html
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sariondil
post Dec 9 2010, 09:23 PM
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Another paper on modelling of subsurface water. Again, Elsevier wants you to pay for it, and the pdf is too large to post here (1.5 MB).

QUOTE
The thickness of the liquid subsurface layer depends primarily on the crustal heat flux, the thermal conductivity of the overburden sediments, and the surface temperature. A subsurface liquid water layer of 1 to 2 km can be achieved under present day surface temperature conditions and a crustal heat flux of 1530 mW m− 2


With some simplifications (steady state, no hydrostatic pressure... ) one can calculate temperature and pressure at a given depth as follows. Density and thermal conductivity for some materials is here. Then look up p and T in the phase diagram of your favourite substance smile.gif
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- ngunn   Martian Hydrology   Nov 23 2010, 08:46 PM
- - marsbug   How big would such an aquifer need to be to be pic...   Nov 27 2010, 08:53 PM
- - ngunn   I'm curious about this too, and my ignorance o...   Nov 27 2010, 09:18 PM
- - marsbug   A very quick bit of reading tells me that SHARAD h...   Nov 27 2010, 09:45 PM
- - ngunn   We know that Mars has plenty of H2O, and that like...   Nov 27 2010, 10:14 PM
|- - Den   QUOTE (ngunn @ Nov 27 2010, 11:14 PM) We ...   Dec 7 2010, 06:39 PM
- - ZLD   Quoting the Wikipedia entry on Martian Climate: Q...   Dec 7 2010, 07:15 PM
|- - Den   QUOTE (ZLD @ Dec 7 2010, 08:15 PM) Quotin...   Dec 8 2010, 02:00 AM
- - djellison   Den and ZLD - you're both forgetting one vital...   Dec 7 2010, 07:26 PM
|- - Den   QUOTE (djellison @ Dec 7 2010, 08:26 PM) ...   Dec 8 2010, 02:03 AM
- - ZLD   And most people forget that the ground has pressur...   Dec 7 2010, 08:06 PM
|- - Den   QUOTE (ZLD @ Dec 7 2010, 09:06 PM) And mo...   Dec 8 2010, 02:19 AM
|- - ZLD   QUOTE (Den @ Dec 8 2010, 03:19 AM) Water ...   Dec 8 2010, 03:47 AM
||- - Den   QUOTE (ZLD @ Dec 8 2010, 04:47 AM) That i...   Dec 8 2010, 05:19 AM
|- - ElkGroveDan   QUOTE (Den @ Dec 7 2010, 06:19 PM) Meltin...   Dec 8 2010, 05:11 AM
- - djellison   That paper is 10 years old, and many other studies...   Dec 7 2010, 08:54 PM
- - ZLD   I remember a while back spirit recording a tempera...   Dec 8 2010, 05:53 AM
|- - Den   QUOTE (ZLD @ Dec 8 2010, 06:53 AM) I reme...   Dec 8 2010, 11:21 AM
- - machi   Phase transitions (for example melting) of all che...   Dec 8 2010, 03:44 PM
- - sariondil   For those with access to 'Icarus': Articl...   Dec 8 2010, 04:15 PM
- - Fran Ontanaya   Is brine lost so fast to evaporation in those cond...   Dec 8 2010, 06:00 PM
- - ZLD   QUOTE Conclusions - The presence of salts on and i...   Dec 8 2010, 07:48 PM
- - ngunn   Thanks for the link. A good read indeed.   Dec 8 2010, 08:32 PM
- - marsbug   Thanks for that, its a good resource for anyone tr...   Dec 9 2010, 01:38 AM
- - sariondil   Another paper on modelling of subsurface water. Ag...   Dec 9 2010, 09:23 PM
|- - ngunn   QUOTE (sariondil @ Dec 9 2010, 09:23 PM) ...   Dec 9 2010, 09:45 PM
|- - djellison   QUOTE (sariondil @ Dec 9 2010, 01:23 PM) ...   Dec 9 2010, 09:48 PM
- - ngunn   The way we are just now I supose censorhip is an i...   Dec 10 2010, 12:11 AM
- - helvick   Much as I might be rabidly opposed to Elsevier...   Dec 10 2010, 12:43 AM
- - ElkGroveDan   I have to agree with Helvick.   Dec 10 2010, 01:19 AM
- - imipak   A reminder of the the discussion of the notorious...   Dec 17 2010, 02:30 PM


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