Mathematics – Logic
Scientific paper
Oct 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sci...194...78h&link_type=abstract
Science, vol. 194, Oct. 1, 1976, p. 78-81.
Mathematics
Logic
1
Atmospheric Physics, Climatology, Mars Atmosphere, Meteorological Parameters, Planetary Meteorology, Viking Lander 1, Carbon Dioxide, Diurnal Variations, Pressure Distribution, Temperature Distribution, Wind Velocity
Scientific paper
Results from the meteorology instruments on the Viking 1 lander are presented for the first 20 sols of operation. The daily patterns of temperature, wind, and pressure have been highly consistent during the period. Hence, these have been assembled into 20-sol composistes and analyzed harmonically. Maximum temperature was 241.8 K and minimum was 187.2 K. The composite wind vector has a mean diurnal magnitude of 2.4 meters per second with prevailing wind from the south and counterclockwise diurnal rotation. Pressure exhibits diurnal and semidiurnal oscillations. The diurnal is ascribed to a combination of effects, and the semidiurnal appears to be the solar semidiurnal tide. Similarities to earth are discussed. A major finding is a continual secular decrease in diurnal mean pressure. This is ascribed to carbon dioxide deposition at the south polar cap.
Chamberlain T. E.
Cole Harold L.
Dutton R. G.
Greene G. C.
Henry Ross M.
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