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    Radar scattering laws and wavelength dependence of the lunar surface (1978)
    In:  CASI
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    Publication Date: 2019-06-27
    Description: Data from Apollo lunar bistatic radar experiments have been processed to give probability density functions for surface slopes. These show best agreement with a Hagfors scattering law, though data having both gaussian and exponential characteristics also exist. Surface roughness estimates range from 4 deg in maria to at least 8 deg in highlands, values which are appropriate to 25 m horizontal scales and which are areal averages over tens of square kilometers. Roughness varies with wavelength, most strongly in maria.
    Keywords: COMMUNICATIONS AND RADAR
    Type: NASA-CR-155714
    Format: application/pdf
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