Computer Science
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...41..159c&link_type=abstract
Icarus, vol. 41, Jan. 1980, p. 159-165.
Computer Science
8
Atmospheric Composition, Carbon Dioxide Concentration, Climatology, Mars Atmosphere, Paleoclimatology, Albedo, Greenhouse Effect, Mars Surface, Surface Temperature, Mars, Atmosphere, Carbon Dioxide, Surface, Ice, Climate, Water, Temperatures, Greenhouse Effect, Erosion, Pressure, Models, Parameters, Albedo, Gravity, Emissions, Humidity, History, Volatiles
Scientific paper
Current evidence indicates that the Martian surface is abundant with water presently in the form of ice, while the atmosphere was at one time more massive with a past surface pressure of as much as 1 atm of CO2. In an attempt to understand the Martian paleoclimate, a past CO2-H2O greenhouse was modeled and global temperatures which are consistent with an earlier presence of liquid surface water are found in agreement with the extensive evidence for past fluvial erosion. An important aspect of the CO2-H2O greenhouse model is the detailed inclusion of CO2 hot bands. For a surface pressure of 1 atm of CO2, the present greenhouse model predicts a global mean surface temperature of 294 K, but if the hot bands are excluded, a surface temperature of only 250 K is achieved.
Cess Robert D.
Owen Theodore
Ramanathan Veerabhadran
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