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Surface roughness estimation at three points on the lunar surface using 23-CM monostatic radarDifferences in quasi-specular scattering by the lunar surface have been observed at 23-cm wavelength by using earth-based radar. By taking advantage of libration, three subradar points were isolated, and distinct scattering laws were identified for terrain near Hipparchus, Sinus Medii, and the crater Schroeter F. Interpretations of lunar radar data should henceforth incorporate a recognition that these variations take place. Unidirectional rms surface slope estimates of 6-8 deg in the Central Highlands and 4-5 deg in old mare are appropriate to horizontal scales of 100 m.
Document ID
19760058878
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Simpson, R. A.
(Stanford University Stanford, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
August 10, 1976
Publication Information
Publication: Journal of Geophysical Research
Volume: 81
Subject Category
Lunar And Planetary Exploration
Accession Number
76A41844
Funding Number(s)
CONTRACT_GRANT: NSG-7029
CONTRACT_GRANT: NGL-05-020-014
Distribution Limits
Public
Copyright
Other

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