Computer Science
Scientific paper
Aug 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...39..310l&link_type=abstract
Icarus, vol. 39, Aug. 1979, p. 310-314.
Computer Science
5
Atmospheric Composition, Atmospheric Models, Atmospheric Temperature, Oxygen, Ozone, Primitive Earth Atmosphere, Surface Temperature, Atmospheric Attenuation, Atmospheric Chemistry, Atmospheric Heat Budget, Carbon Dioxide, Convective Heat Transfer, Methane, Nitrogen Oxides, Paleoclimatology, Photochemical Reactions, Radiative Heat Transfer, Water Vapor
Scientific paper
Photochemical and radiative-convective calculations are performed to evaluate the influence of ozone in determining the surface temperature of the paleoatmosphere prior to the buildup of molecular oxygen to its present atmospheric level. Possible effects of atmospheric dynamics on the photochemistry and thermal structure of the paleoatmosphere are neglected, and the present atmospheric values are assumed for the tropospheric water-vapor relative-humidity distribution and lapse rate as well as for the fractional cloud amount and cloud reflectivity. It is found that the radiative effects (at IR and solar wavelengths) of ozone for a molecular oxygen level of one-tenth the present atmospheric level resulted in a globally averaged surface-temperature increase of about 4.5 K for the present solar constant. Implications of the results for paleoclimate are briefly considered.
Boughner R. E.
Levine Joel S.
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