Mathematics – Logic
Scientific paper
Nov 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983sci...222..463a&link_type=abstract
Science (ISSN 0036-8075), vol. 222, Nov. 4, 1983, p. 463-468. NASA-supported research.
Mathematics
Logic
58
Mars Environment, Mars Photographs, Viking Lander 1, Atmospheric Pressure, Climatology, Dust Storms, Mars Atmosphere, Mars Surface, Mars Surface Samples, Planetary Meteorology, Soil Erosion, Spaceborne Photography, Wind Erosion, Wind Velocity Measurement, Mars, Viking 1 Lander, Imagery, Observations, Dust, Deposition, Wind, Erosion, Dust Storms, Transport, Atmosphere, Pressure, Baroclinity, Tidal Effects, Diurnal Variations, Heating, Soils, Distribution, Procedure, Surface, Aeolian Processes, Evolution
Scientific paper
The Mutch Memorial Station (Viking Lander 1) on Mars acquired imaging and meteorological data over a period of 2245 martian days (3.3 martian years). This article discusses the deposition and erosion of thin deposits (ten to hundreds of micrometers) of bright red dust associated with global dust storms, and the removal of centimeter amounts of material in selected areas during a dust storm late in the third winter. Atmospheric pressure data acquired during the period of intense erosion imply that baroclinic disturbances and strong diurnal solar tidal heating combined to produce strong winds. Erosion occurred principally in areas where soil cohesion was reduced by earlier surface sampler activities. Except for redistribution of thin layers of materials, the surface appears to be remarkably stable, perhaps because of cohension of the undisturbed surface material.
Arvidson Ray E.
Guinness Edward A.
Moore H. Jr. J.
Tillman J.
Wall Stephen D.
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