Solar occultation spectroscopic measurements of the Martian atmosphere at 1.9 and 3.7 microns

Details Solar occultation spectroscopic measurements of the Martian atmosphere at 1.9 and 3.7 microns Solar occultation spectroscopic measurements of the Martian atmosphere at 1.9 and 3.7 microns

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.341..603k&link_type=abstract

Nature (ISSN 0028-0836), vol. 341, Oct. 19, 1989, p. 603, 604.

Astronomy and Astrophysics

Astronomy

18

Astronomical Spectroscopy, Infrared Spectroscopy, Mars Atmosphere, Molecular Spectra, Occultation, Solar Instruments, Atmospheric Composition, Gratings (Spectra), Water Vapor

Scientific paper

Solar occultation measurements taken from Phobos 2 of the H2O and CO2 bands at 1.9 micron and of the dust absorption at 1.9 and 3.7 microns are presented. They are used to calculate vertical profiles of water vapor, dust, and atmospheric temperature in the 10-70 km range. The water vapor mixing ratio profile demonstrates oscillations from 10 to the -5th to 10 to the -3rd with a period of 25 km. This behavior is explained by the condensation and evaporation of water at minima and maxima of the temperature oscillations.

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