Computer Science – Sound
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9514695m&link_type=abstract
(American Geophysical Union and Geological Society of America, International Conference on Mars, 4th, Tucson, AZ, Jan. 10-13, 19
Computer Science
Sound
4
Atmospheric Sounding, Gamma Ray Spectrometers, Mars Atmosphere, Atmospheric Attenuation, Atmospheric Composition, Carbon Dioxide, Line Spectra, Mars Surface, Planetary Meteorology
Scientific paper
This paper describes three methods for measuring the Martian atmosphere using gamma ray spectroscopy. One method determines atmospheric thickness based on the energy-dependent differential attenuation of gamma-ray line pairs from a common element. Another makes a direct determination based on measurements of the line flux generated in the atmosphere, requires knowledge of the concentration of the component being used. The third, which makes use of a single line emitted from the surface where its flux can be established. The effects of stratigraphy on the differential attenuation method are studied, and calculations are reported which show that the measurement of atmospheric argon will be a sensitive indicator of the atmospheric fractionation accompanying CO2 precipitation in south polar regions.
Haines Eldon L.
Metzger Albert E.
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