Radiative fluxes on a dustfree Mars

Details Radiative fluxes on a dustfree Mars Radiative fluxes on a dustfree Mars

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991conap..64..103s&link_type=abstract

Beitraege zur Physik der Atmosphaere (ISSN 0005-8173), vol. 64, May 1991, p. 103-112.

Physics

Carbon Dioxide, Mars Atmosphere, Planetary Boundary Layer, Radiative Transfer, Water Vapor, Atmospheric General Circulation Models, Diurnal Variations, Nocturnal Variations, Solar Radiation, Thermal Radiation

Scientific paper

Several longwave and shortwave radiation parameterization schemes were tested for dust-free Mars. Band models with the Curtis-Godson approximation served as references for the CO2 longwave spectrum. An emissivity scheme with pressure scaling was tuned with the help of the BM's. A broadband scheme, used previously both in a Martian GCM and a mesoscale model, was found to give slightly different results. It was also quite sensitive to its upper boundary condition. Water vapor effects on the thermal radiation were found to be negligible in winter but not in summer. The daytime heating of the Martian lower atmosphere by absorption of solar radiation was very small regarding water vapor and weak as to CO2 when compared to the much stronger longwave daytime heating and nighttime cooling in a simulated summertime diurnal cycle.

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