Visual and infrared observations of wind streaks on Mars

Details Visual and infrared observations of wind streaks on Mars Visual and infrared observations of wind streaks on Mars

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981icar...45..447p&link_type=abstract

Icarus, vol. 45, Feb. 1981, p. 447-467.

Astronomy and Astrophysics

Astronomy

44

Dust Storms, Mars Surface, Spaceborne Astronomy, Surface Properties, Topography, Wind Erosion, Albedo, Astronomical Models, Infrared Astronomy, Mariner 9 Space Probe, Mars Craters, Satellite-Borne Photography, Thermal Mapping, Viking Orbiter Spacecraft, Visual Observation, Syrtis Major Planitia, Syria Planum, Claritas Fossae, Frequency, Oxia Palus, Mesogea Crater, Pettit Crater, Noachis Crater, Albedo, Maps, Hesperia Planum, Photographs, Deposits, Color, Elevations, Data, Temperatures, Meteorology, Mariner

Scientific paper

Global correlations of the regions in which three Martian wind streak types (bright, dark, splotch-related) vary according to latitude, elevation, albedo, color, and predawn residual temperature provide constraints on models of streak formation and modification. Bright streaks are relatively stable and occur over a wide range of geographical surfaces. They are elevation-independent, suggesting that their formation is due to atmospheric dust fallout. Dark streaks appear variable from 20 to 40 deg S and at elevations between 3 and 7 km. They are associated with dark surfaces, having high thermal inertias. Splotch-related streaks occur at elevations between 0 and 6 km and at areas of either low or high thermal inertias, which is the cause of its modifying surface winds. Data are graphically presented, and the methods of data collection are fully explained. Regional studies of various types of streaks in Syrtis Major, Syria Planum, Oxia Palus, Mesogea and Pettit Craters, and Noachis confirm that the correlations found at the global level also occur at regional scales.

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