Physics
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.3286d&link_type=abstract
Journal of Geophysical Research, vol. 80, Aug. 10, 1975, p. 3286-3306.
Physics
6
Mars Surface, Photogrammetry, Planetary Mapping, Polar Regions, Topography, Infrared Spectrometers, Mariner 9 Space Probe, Radio Occultation, Spacecraft Television, Tables (Data), Ultraviolet Spectrometers, Volatility
Scientific paper
Synthesis of polar topographic data derived from the Mariner 9 radio occultation, ultraviolet spectrometer, and television imaging experiments provides new information on the behavior of polar volatiles and the topographic configuration of the Martian polar layered deposits. Gentle slopes in the vicinity of the south pole may serve to shift the point of minimum annual solar insolation from the pole to a site within the perimeter of the offset residual frost cap. Localized defrosting which gives rise to the dark-banded appearance of both residual caps correlates with a series of outward-facing slopes descending from central topographic highs. Stability of the volatile involved apparently is largely insolation controlled. The south polar residual cap lies entirely higher (at lower pressure) than the northern cap, implying that the south residual cap is an unlikely site for any permanent surface deposit of solid carbon dioxide.
Blasius Karl R.
Dzurisin Dan
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