Characteristics of aerosol in the atmosphere of Mars according to data from the KRFM experiment

Details Characteristics of aerosol in the atmosphere of Mars according to data from the KRFM experiment Characteristics of aerosol in the atmosphere of Mars according to data from the KRFM experiment

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991rpsct...6...40m&link_type=abstract

In its JPRS Report: Science and Technology. USSR: Space p 40 (SEE N91-26162 18-12) Transl. into ENGLISH from Kosmicheskiye Issle

Physics

Aerosols, Dust, Equatorial Regions, Haze, Ice, Mars Atmosphere, Mars Surface, Minerals, Particle Size Distribution, Quantitative Analysis, Spectral Bands, Basalt, Hydroxides, Infrared Filters, Infrared Radiometers, Iron Oxides, Optical Thickness, Photometry, Prisms, Spectrometers

Scientific paper

The KRFM experiment on Fobos 2 consisted of an infrared radiometer and filters, and a 0.32 to 0.60 micron prism spectrometer. Photometric profiles of Mars were obtained in eight spectral bands from 320 to 550 nm. The equatorial region of Mars was studied from limb to limb. Some details of the profiles are associated with atmospheric aerosol. Quantitative analysis of aerosol properties is difficult because of the number of parameters needed. An interpretation of the data yielded three types of aerosol: (1) constant haze (mineral dust) mixed with gas; (2) ice haze at the surface at night; and (3) high-altitude clouds. The article examines types 1 and 3. THe absorption properties are those of basalt mixed with goethite. The optical depth, 0.3, is virtually independent of wavelength. The particle size distribution is wide.

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