Atmospheric effects on the mapping of Martian thermal inertia and thermally derived albedo

Details Atmospheric effects on the mapping of Martian thermal inertia and thermally derived albedo Atmospheric effects on the mapping of Martian thermal inertia and thermally derived albedo

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...100.5277h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), Vol. 100, no. E3, p. 5277-5284

Mathematics

Logic

27

Albedo, Atmospheric Effects, Atmospheric Models, Carbon Dioxide, Dust, Mars (Planet), Thermal Mapping, Thermal Stability, Absorptance, Data Reduction, Opacity, Radiative Transfer, Topography, Viking Lander 1

Scientific paper

We examine the effects of a dusty CO2 atmosphere on the thermal inertia and thermally derived albedo of Mars and we present a new map of thermal inertias. This new map was produced using a coupled surface atmosphere (CSA) model, dust opacities from Viking infrared thermal mapper (IRTM) data, and CO2 columns based on topography. The CSA model thermal inertias are smaller than the 2% model thermal inertias, with the difference largest at large thermal inertia. Although the difference between the thermal inertias obtained with the two models is moderate for much of the region studied, it is largest in regions of either high dust opacity or of topographic lows, including the Viking Lander 1 site and some geologically interesting regions. The CSA model thermally derived albedos do not acurately predict the IRTM measured albedos and are very similar to the thermally derived albedos obtained with models making the 2% assumption.

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