Radar Search for Water Ice at the Lunar Poles

Details Radar Search for Water Ice at the Lunar Poles Radar Search for Water Ice at the Lunar Poles

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998nvmi.conf...66s&link_type=abstract

Workshop on New Views of the Moon: Integrated Remotely Sensed, Geophysical, and Sample Datasets, p. 66

Physics

Ice, Lunar Surface, Water, Radar Data, Backscattering, Circular Polarization, Clementine Spacecraft

Scientific paper

Unusual signatures were discovered in radar backscatter data from Europa, Ganymede, and Callisto 20 years ago and have since been widely interpreted as arising from electromagnetic interactions with inhomogeneities in low-loss materials such as water ice Radar echoes from Mars, Mercury, and Titan also appear to exhibit some of the same features and are consistent with the water ice interpretation. During April 1994, the Clementine spacecraft high-gain antenna was aimed toward the Moon's surface and the resulting 13-cm wavelength radio echoes were received on Earth. Using those data, researchers have claimed detection of an enhancement in echoes with right circular polarization from regions near the south pole in a near-backscatter geometry and have inferred the presence of water ice. We have reanalyzed the same data and have reached a different conclusion.

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