Roughness of the lunar soil

Details Roughness of the lunar soil Roughness of the lunar soil

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985em%26p...33...19l&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 33, Aug. 1985, p. 19-29.

Astronomy and Astrophysics

Astronomy

8

Lunar Soil, Lunar Surface, Surface Roughness, Image Analysis, Lunar Photographs, Photointerpretation, Regolith

Scientific paper

Three stereoscopic close-up photographs taken of the lunar surface by Apollo 11 and 12 astronauts were analyzed to investigate the roughness of the lunar soil at millimeter resolution. Most existing measurements of regolith roughness were based on radar measurements at wavelengths of about 8.6 mm. Several statistical parameters were determined for they landing site. The surace roughness has been found to be nearly Gaussian. The rms slopes were obtained over scales between 0.5 mm and 5 cm. They steadily decrease with increasing scale length from 58 deg to 2 deg and are in reasonable agreement with radar-measured values. The autocorrelation coefficient of the height distribution has also been obtained; it has a scale length of 0.7 mm.

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