Two Mars years of surface changes seen at the Viking Landing sites

Details Two Mars years of surface changes seen at the Viking Landing sites Two Mars years of surface changes seen at the Viking Landing sites

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....8710051g&link_type=abstract

(International Colloquium on Mars, 3rd: Dedicated to Thomas A. Mutch /1931-1980/, Pasadena, CA, Aug. 30-Sept. 2, 1982.) Journal

Physics

18

Annual Variations, Dust Storms, Mars Surface, Sediment Transport, Spectrophotometry, Viking Lander Spacecraft, Brightness Distribution, Colorimetry, Mars Photographs, Soil Mapping, Wind Erosion

Scientific paper

An analysis of the spectrophotometric properties of the new dust deposited at the Viking Lander 1 site indicates that the new deposits are the same as the bright red material that only partially covered the site at the beginning of the mission. Certain areas of the Viking 1 site also showed an increase in contrast during the second year. The contrast increase is thought to be due to the partial removal of the recently deposited dust cover by high-velocity winds. What is more, a small soil slump occurred near the base of a boulder lying about 25 m from the lander. It is noted that whereas no obvious erosion has been detected at the Viking 2 site, periodic removal of the dust cover at this site is implied by the abundance of rocks at the site.

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