VIRTIS/VEX Surface and Near Surface Observations of Venus' Northern Hemisphere

Details VIRTIS/VEX Surface and Near Surface Observations of Venus' Northern Hemisphere VIRTIS/VEX Surface and Near Surface Observations of Venus' Northern Hemisphere

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008epsc.conf..376a&link_type=abstract

European Planetary Science Congress 2008, Proceedings of the conference held 21-25 September, 2008 in Münster, Germany. Online a

Computer Science

Scientific paper

Nightside emission measurements by the Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) on the Venus Express (VEX) spacecraft were used to estimate the potential for the extraction of Venus surface information. A suite of orbits over the northern hemisphere was selected for footprints that cover surface elevations from -2000 m to 6000 m. First, a preliminary radiative transfer calculation technique was applied to simulate Venus nightside radiation. The variability of the emission window radiances with respect to cloud opacity and surface elevation was modelled and is discussed in direct comparison to the measurements. An initial extraction of topographic information was performed and compared with Magellan radar data.

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