The topography of impact craters in 'softened' terrain on Mars

Details The topography of impact craters in 'softened' terrain on Mars The topography of impact craters in 'softened' terrain on Mars

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar..100...26j&link_type=abstract

Icarus (ISSN 0019-1035), vol. 100, no. 1, p. 26-39.

Computer Science

18

Mars Craters, Mars Photographs, Mars Surface, Photogrammetry, Terrain Analysis, Topography, Degradation, Viking Orbiter Spacecraft

Scientific paper

The technique of photoclinometry is applied here to Viking orbiter images of Mars in order to derive topographic profiles across Martian craters on both softened and unsoftened terrain. The results demonstrate that craters on the two kinds of terrain are in fact topographically distinct. Both simple and complex softened craters are characterized by more convex-upward crater walls than are unsoftened craters, and both simple and complex softened craters have rounder crater rims. Softened complex craters have modestly smaller crater depths than unsoftened complex craters. Both the rim heights and bowl depths are reduced, with the rim heights reduced more. Softened simple craters have much smaller crater depths than unsoftened simple craters. Both the rim heights and bowl depths are reduced, with the bowl depths reduced more.

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