Merging Magellan emissivity and SAR data for analysis of Venus surface dielectric properties

Details Merging Magellan emissivity and SAR data for analysis of Venus surface dielectric properties Merging Magellan emissivity and SAR data for analysis of Venus surface dielectric properties

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994icar..112..187c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 112, no. 1, p. 187-203

Physics

15

Backscattering, Dielectric Properties, Emissivity, Planetary Geology, Planetary Mantles, Radar Scattering, Synthetic Aperture Radar, Venus (Planet), Venus Surface, Altitude, Deposits, Magellan Project (Nasa), Permittivity, Radar Imagery, Surface Roughness

Scientific paper

Integration of Magellan datasets for Venus is an important part of characterizing the geology of the surface. We analyze the global average behavior of radar backscatter and emissivity and find that for incidence angles greater than 30 deg the two parameters can be modeled by the behavior of a single-dielectric surface (epsilon approximately 4.15) with variable roughness. Based on this result, we propse a model which relates the HH backscatter and H-polarized emissivity to values for a relative roughness fraction and dielectric constant.

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