Physics
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...41..389h&link_type=abstract
Icarus, vol. 41, Mar. 1980, p. 389-399. Research supported by the Science Research Council;
Physics
4
Dust Storms, Image Processing, Infrared Imagery, Mars Surface, Opacity, Thermal Mapping, Atmospheric Heating, Mars Atmosphere, Thermodynamic Properties, Viking Orbiter Spacecraft, Mars, Dust, Storms, Observations, Viking, Opacity, Infrared, Maps, Thermal Properties, Mapping, Irtm, Clouds, Thickness, Atmosphere, Heating, Winds, Data, Spectrum, Structure, Analysis, Solis Planum
Scientific paper
In this paper some Viking infrared thermal mapping (IRTM) measurements of local Martian dust storms observed in the southern tropical region of the planet between solar longitudes of 225 and 262 deg are analyzed. The derived opacities of these storms show that in the most opaque regions of the cloud, the optical thickness may be approximately 6. Away from the individual clouds, the opacity is approximately 2, which is still about four times the background level of dustiness in the Martian atmosphere. Considerable structure in the derived opacity is found which will create corresponding variations in the atmospheric heating, which in turn may have an important feedback upon the local winds.
Hunt Garry E.
Mitchell E. A.
Peterfreund A. R.
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