On the nature and visibility of crater-associated streaks on Mars

Details On the nature and visibility of crater-associated streaks on Mars On the nature and visibility of crater-associated streaks on Mars

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...36..147v&link_type=abstract

Icarus, vol. 36, Oct. 1978, p. 147-152.

Physics

Craters, Image Contrast, Mars Atmosphere, Photointerpretation, Spaceborne Photography, Visibility, Dust Storms, Erosion, Mariner 9 Space Probe, Morphology, Viking Mars Program, Mars, Crater Streaks, Wind, Mariner 9, Sun, Erosion, Morphology, Dust Storms, Topography, Viking Lander, Surface, Imagery, Azimuth, Streaks, Martian

Scientific paper

The paper considers Mariner 9 and Viking data that contradict Kuzmin's (1975) hypothesis that all crater-associated wind streaks on Mars are depositional and consist of unresolved barchan-like dunes. According to Kuzmin's hypothesis, any streak can appear either bright or dark relative to its surroundings depending on the sun's position. The spacecraft images, however, show examples of dark and light streaks visible at the same azimuth angle of the sun. Evidence that bright and dark streaks differ both in morphology and in character is considered. It is suggested that the common ragged dark streaks are probably erosion scars while most bright streaks probably represent accumulations of bright dust-storm fallout.

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