Topography of Apollinaris Patera and Ma'adim Vallis: Automated extraction of digital elevation models

Details Topography of Apollinaris Patera and Ma'adim Vallis: Automated extraction of digital elevation models Topography of Apollinaris Patera and Ma'adim Vallis: Automated extraction of digital elevation models

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....9823581t&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. E12, p. 23,581-23,587

Physics

14

Digital Simulation, Elevation, Geology, Mars Surface, Mars Volcanoes, Satellite Imagery, Terrain Analysis, Topography, Algorithms, Contours, Least Squares Method, Viking Orbiter Spacecraft, Volcanoes

Scientific paper

We have used automatic extraction of digital elevation models (DEMs) from stereo imagery of Mars to produce DEMs of parts of the Aeolis quadrangle of Mars. The method uses automated stereo matching based on an adaptive least squares correlation technique, which can be applied to Viking Orbiter imagery. A demonstration of the technique is presented, which focuses on the volcano Apollinaris Patera (186 deg W, 9 deg S), and the channel Ma'adim Vallis (183 deg W, 20 deg S). The topographic information derived is compared with previous determinations of topography, and a brief discussion of the relationship of the topography to the processes that have acted in the area is given. DEMs derived from stereo-matching are an invaluable resource for terrain interpretation, and will provide a complementary technique to direct topographic measurements such as future missions to Mars will provide.

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