Geologic Mapping of Mars

Details Geologic Mapping of Mars Geologic Mapping of Mars

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998stin...9921064p&link_type=abstract

Minority University-Space Interdisciplinary Network Conference Proceedings of the Seventh Annual Users' Conference, p. 403

Mathematics

Logic

Geological Surveys, Mapping, Mars Photographs, Mars Surface, Photogrammetry, Planetary Mapping, Mariner Spacecraft, Mars Pathfinder, Viking Orbiter Spacecraft

Scientific paper

Planetary geologic mapping involves integrating a terrestrial-based understanding of surface and subsurface processes and mapping principles to investigate scientific questions. Mars mappers must keep in mind that physical processes, such as wind and flowing water on Mars, are or were different from terrestrial processes because the planetary atmospheres have changed differently over time. Geologic mapping of Mars has traditionally been done by hand using overlays on photomosaics of Viking Orbiter and Mariner images. Photoclinometry and shadow measurements have been used to determine elevations, and the distribution and size of craters have been used to determine the relative ages of surfaces- more densely cratered surfaces are older. Some mappers are now using computer software (ranging from Photoshop to ArcInfo) to facilitate mapping, though their applications must be carefully executed so that registration of the images remains true. Images and some mapping results are now available on the internet, and new data from recent missions to Mars (Pathfinder and Surveyor) will offer clarifying information to mapping efforts. This paper consists chiefly of pictures and diagrams.

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