Modelling of atmospheric dust emission and surface of Mars applying a radiative transfer simulation in the 2.0 and 2.7 µm CO2 bands

Kurzfassung

Synthetic infrared radiation spectra of Mars which can be measured by an orbiting Planetary Fourier Spectrometer (PFS) have been calculated in the spectral region from 1 to 50 µm. A radiative transfer simulation technique was applied taking into consideration absorption, emission and mutiple scattering by molecular (CO2, H2O, CO) and particulate (palagonite, carbonate, ice) species. It is shown that the radiation contributions from atmospheric dust emission and surface reflectance can be separated in the region of the CO2 bands at 2.0 and 2.7 µm, respectively. Quantitative results on an aerosol retrieval procedure are discussed.