Physics
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998lpico.953...15h&link_type=abstract
The First International Conference on Mars Polar Science and Exploration, Proceedings of the Conference held at Camp Allen, TX.
Physics
Carbon Dioxide, Mars Surface, Polar Caps, Reflectance, Thermal Conductivity, Mars (Planet), Arctic Regions, Ice, Spectrometers, Simulation
Scientific paper
I will present the results of two research tasks, one experimental and one theoretical. First, I will present absorption coefficients with error estimates for pure CO2 ice in the wavelength range 0.17-1.80 micron. These are the products of an experiment where the transmission of large samples of ice with five different thicknesses was measured. The optical constants from this work can be used in the modeling and analysis of the reflectance of the seasonal polar caps of Mars in this wavelength range, Second, I will present new results from an earlier model of the radiative and thermal properties a sheer layer CO2 ice cap in the Mars polar night. The improvements will include the use of a "rough" surface, which may serve to reduce the large amount of radiative trapping that occurs in a plane layer due to total internal reflection, and a more realistic (lower) thermal conductivity coefficient for the ice.
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