Physics – Geophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pggp.rept..184s&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986 p 184-186 (SEE N87-23341 16-91)
Physics
Geophysics
Carbon Dioxide, Gamma Ray Spectrometers, Mars Atmosphere, Mars Probes, Mars Surface, Permafrost, Planetary Composition, Water, Ice, Mars (Planet), Mars Observer, Mathematical Models, Polar Caps, Stratigraphy, Thickness
Scientific paper
The evolution and present state of water and carbon dioxide on Mars are discussed. Researchers wished to determine how effectively questions regarding the distribution of water and carbon dioxide on Mars may be addressed with orbital gamma ray spectrometer data. Several simple, multi-layer models of the Martian surface were formulated to address problems such as the ice/dust ratio of layered deposits; the distribution, depth and concentration of ground ice; the thickness of north polar perennial ice; the thickness of the carbon dioxide layer over the south polar cap; the thickness of the seasonal carbon dioxide frost cap; and the water content of the seasonal frost cap. The results indicate that the Mars Observer gamma ray spectrometer will be a powerful tool for investigating the distribution and stratigraphy of volatiles on Mars.
Evans Larry G.
Squyres Steven W.
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