Mathematics – Logic
Scientific paper
Sep 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976bams...57.1150h&link_type=abstract
American Meteorological Society, Bulletin, vol. 57, Sept. 1976, p. 1150, 1151.
Mathematics
Logic
Mars Atmosphere, Meteorological Parameters, Planetary Meteorology, Viking Lander 1, Data Transmission, Diurnal Variations, Latent Heat, Mars Landing, Pressure Measurement, Temperature Measurement
Scientific paper
A preliminary evaluation is given of in situ meteorological measurements made by Viking 1 on Mars. The data reported show that: (1) the atmosphere has approximate volume mixing ratios of 1.5% argon, 3% nitrogen, and 95% carbon dioxide; (2) the diurnal temperature range is large and regular, with a sunrise minimum of about 188 K and a midafternoon maximum near 244 K; (3) air and ground temperatures coincide quite closely during the night, but ground temperature exceeds air temperature near midday by as much as 25 C; (4) the winds exhibit a marked diurnal cycle; and (5) a large diurnal pressure variation with an afternoon minimum and an early-morning maximum parallels the wind pattern. The variations are explained in terms of familiar meteorological processes. It is suggested that latent heat is unlikely to play an important role on Mars because no evidence has been observed for traveling synoptic-scale disturbances such as those that occur in the terrestrial tropics.
Henry Ross M.
Hess Seymour L.
Leovy Conway B.
Ryan Alex J.
Tillman James E.
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