Global Distribution of Neutrons from Mars: Results from Mars Odyssey

Details Global Distribution of Neutrons from Mars: Results from Mars Odyssey Global Distribution of Neutrons from Mars: Results from Mars Odyssey

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sci...297...75f&link_type=abstract

Science, Volume 297, Issue 5578, pp. 75-78 (2002).

Physics

260

Scientific paper

Global distributions of thermal, epithermal, and fast neutron fluxes have been mapped during late southern summer/northern winter using the Mars Odyssey Neutron Spectrometer. These fluxes are selectively sensitive to the vertical and lateral spatial distributions of H and CO2 in the uppermost meter of the martian surface. Poleward of +/-60° latitude is terrain rich in hydrogen, probably H2O ice buried beneath tens of centimeter-thick hydrogen-poor soil. The central portion of the north polar cap is covered by a thick CO2 layer, as is the residual south polar cap. Portions of the low to middle latitudes indicate subsurface deposits of chemically and/or physically bound H2O and/or OH.

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