Infrared heterodyne spectroscopy of CO2 in the atmosphere of Mars

Details Infrared heterodyne spectroscopy of CO2 in the atmosphere of Mars Infrared heterodyne spectroscopy of CO2 in the atmosphere of Mars

Apr 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977icar...30..650b&link_type=abstract

Icarus, vol. 30, Apr. 1977, p. 650-662.

Astronomy and Astrophysics

Astronomy

12

Astronomical Spectroscopy, Carbon Dioxide, Infrared Spectroscopy, Mars Atmosphere, Absorption Spectra, Line Spectra, Surface Temperature

Scientific paper

An infrared heterodyne spectrometer with a resolving power of 6 million has been used to obtain detailed profiles of the 10-micron absorption lines of CO2 in the atmosphere of Mars. An analysis of the results with an empirical model-atmosphere calculation indicates a nearly pure CO2 atmosphere with an average surface pressure of 5.2 + or - 0.5 mbar in the observed regions, a subsolar surface temperature near 275 K, an atmospheric temperature of 235 to 240 K above the subsolar point, and a lapse rate of 2 K/km.

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