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Relative elevation differences revealed by near infrared CO2 bands on Mars

Published online by Cambridge University Press:  14 August 2015

Andrzej Woszczyk
Andrzej Woszczyk*
Affiliation:
McDonald Observatory, The University of Texas, Fort Davis, Tex., U.S.A.

Abstract

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High dispersion spectroscopic observations of Mars, carried out with the new 107-inch and 82-inch Struve telescopes at McDonald Observatory, were used for detection of relative elevation differences on the surface of Mars. The dispersion of the spectra was 4.4 Å/mm for the 0.87 CO2 band and 3.5 Å/mm for the CO2 bands in the 1 μ region. Spatial resolution during the 1969 opposition was about 20° by 10° for 0.87 μ and 15° by 15° on the planet for the 1.03 μ and 1.05 μ bands. The results are shown in Tables I, II, III and Figures 2 and 3. The observed differences in elevation are on the order of 10 km, which is in good agreement with the latest radar measurements of the topographic features on the Martian surface.

Type
Part II: Mars
Information
Symposium - International Astronomical Union , Volume 40: Planetary Atmospheres , 1971 , pp. 203 - 211
Copyright
Copyright © Reidel 1971 

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