Global map of eolian features on Mars

Details Global map of eolian features on Mars Global map of eolian features on Mars

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.2038w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Feb. 10, 1985, p. 2038-2056. NASA-supported research.

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36

Astronomical Maps, Mapping, Mars Photographs, Mars Surface, Wind Effects, Dunes, Grooves, Morphology, Polar Regions, Wind Direction, Mars, Surface, Terrain, Features, Maps, Eolian Effects, Mariner 9, Viking Missions, Orbiters, Imagery, Streaks, Sand, Dunes, Yardangs, Grooves, Pits, Polar Regions, Winds, Erosion, Descriptions, Latitude, Patterns, Frost, Circulation, Deposition, Insolation, Obliquity, Stratigraphy, Mantle, History

Scientific paper

A variety of common eolian features on Mars have been identified from a survey of Mariner 9 and Viking orbiter images, and their regional and global distributions and orientations are discussed. Ten features have been mapped including: light and dark streaks, splotches, barchan and transverse dunes, crescentric and anomalous dunes, yardangs, wind grooves, and deflation pits. The north polar region shows a complex wind regime. Dunes and other ephemeral features reveal winds from the northwest and northeast. In the middle and low northern latitudes, northeasterly winds are the most effective winds. Southeast winds are the effective winds in most southern latitudes. Erosional features in bedrock indicate long-term and perhaps ancient wind trends, whereas depositional features may record relatively more recent winds. Deflation pits in the mantled terrain may contain the best record of both ancient and present-day winds.

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