New radar-derived topography for the northern hemisphere of Mars

Details New radar-derived topography for the northern hemisphere of Mars New radar-derived topography for the northern hemisphere of Mars

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.9747d&link_type=abstract

(International Colloquium on Mars, 3rd: Dedicated to Thomas A. Mutch /1931-1980/, Pasadena, CA, Aug. 30-Sept. 2, 1982.) Journal

Astronomy and Astrophysics

Astronomy

43

Mars Surface, Northern Hemisphere, Radar Astronomy, Radio Altimeters, Space Observations (From Earth), Topography, Data Reduction, Mars Atmosphere, Surface Properties

Scientific paper

Earth-based radar altimetry data for the northern equatorial belt of Mars (6 deg S-23 deg N) have recently been reduced to a common basis corresponding to the 6.1-mbar reference surface. A first look at these data indicates that the elevations of Tharsis, Elysium, and Lunae Planum are lower (by 2-5 km) than has been suggested by previous estimates. These differences show that the required amount of tectonic uplift (or constructional volcanism) for each area is less than has been previously envisioned. Atmospheric or surficial conditions are suggested which may explain the discrepancies between the radar topography and elevations measured by other techniques. The topographies of Chryse Planitia, Syrtis Major, and Valles Marineris are also described.

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