Computer Science
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sci...193..776f&link_type=abstract
Science, vol. 193, Aug. 27, 1976, p. 776-780.
Computer Science
4
Atmospheric Moisture, Mars Atmosphere, Viking Orbiter 1, Water Vapor, Atmospheric Composition, Diurnal Variations, Mars Surface, Planetary Mapping, Solid Phases, Vapor Phases, Viking Mars Program
Scientific paper
Observations made from the Viking 1 orbiter show very little water vapor in the Mars atmosphere in the southern hemisphere (0 to 3 precipitable micrometers) with a gradual increase across the equator to northern latitudes. Maximum amounts between 20 and 30 micrometers have been observed in the short period covered by the observations to date. The season, northern midsummer, corresponds to the beginning of the water vapor cycle in that hemisphere. A strong repetitive diurnal cycling between the solid and vapor phase is observed at a site to the east of the Tharsis Ridge at 10 deg north latitude; the vapor lies close to the martian surface and is most probably in saturation equilibrium with a surface haze or fog throughout much of the day.
Davies Donald W.
Farmer Crofton B.
Laporte Daniel D.
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