Bistatic Radar Exploration of Mars' South Polar Region

Details Bistatic Radar Exploration of Mars' South Polar Region Bistatic Radar Exploration of Mars' South Polar Region

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufm.p13c..07s&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #P13C-07

Astronomy and Astrophysics

Astronomy

5462 Polar Regions, 6225 Mars, 6949 Radar Astronomy, 6994 Instruments And Techniques (1241)

Scientific paper

Several bistatic radar experiments were conducted using Mars Express in late August and early September 2005 with targets in Mars' south polar region (latitudes poleward of 87S). Strong quasi-specular echoes were received on Earth at 13 and 3.6 cm wavelengths in both right- and left-circular polarization. Preliminary analysis shows rms slopes to be less than 2 degrees at the shorter wavelength; but there is considerable structure in the echo shape, suggesting surface heterogeneity. Two of the experiments targeted the residual south polar ice cap, which appears anomalously bright in Earth-based backscatter radar (Muhleman et al., Science, 253, 1508-1513, 1991). The bistatic geometry is not expected to trigger the anomalous scattering; but the new measurements should provide additional insight into the properties of the surface materials responsible.

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