ROUGHNESS OF THE LUNAR SOIL
Journal or Book Title
EARTH MOON AND PLANETS
In situ measurements at the lunar surface at millimeter resolution by the Apollo astronauts have been analyzed. Several statistical parameters have been determined for the landing site. The surface roughness has been found to be very nearly gaussian. The root-mean-square slopes have been obtained over scales between 0.5 mm and 5 cm. They steadily decrease with increasing scale length from 58° to 2° 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.
LUMME, K; KARTTUNEN, H; and Irvine, William M., "ROUGHNESS OF THE LUNAR SOIL" (1985). EARTH MOON AND PLANETS. 276.