DOI: 10.1029/2004je002350
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Abstract: [1] We seek a better understanding of the distribution of subsurface ice on Mars, based on the physical processes governing the exchange of vapor between the atmosphere and the subsurface. Ground ice is expected down to $49°latitude and lower latitudes at poleward facing slopes. The diffusivity of the regolith also leads to seasonal accumulation of atmospherically derived frost at latitudes poleward of $30°. The burial depths and zonally averaged boundaries of subsurface ice observed from neutron emission are…

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