Roughness of the lunar soil |
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| Authors: | Kari Lumme Hannu Karttunen William M Irvine |
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| Institution: | (1) Observatory and Astrophysics Laboratory, University of Helsinki, Finland;(2) Department of Physics and Astronomy and Five College Astronomy Department, University of Massachusetts, Amherst, MA, U.S.A. |
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| Abstract: | 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.Adjunct Professor at the University of Massachusetts.Visiting Scholar at the University of Massachusetts. |
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