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Subsurface air flow on Mars

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When the atmospheric surface pressure is just right, a temperature difference can drive a continuous flow of rarefied gas through the soil matrix — a previously unrecognized process on Mars.

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Figure 1: Surface temperatures derived from an infrared image acquired by the Thermal Emission Imaging System (THEMIS) on board the Mars Odyssey spacecraft.

IMAGE FROM NASA/JPL/ARIZONA STATE UNIVERSITY.

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  1. Norbert Schörghofer is at the Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA,

    Norbert Schörghofer

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  1. Norbert Schörghofer
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Correspondence to Norbert Schörghofer.

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Schörghofer, N. Subsurface air flow on Mars. Nature Phys 10, 14–15 (2014). https://doi.org/10.1038/nphys2841

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