Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.2111b&link_type=abstract
American Astronomical Society, DPS meeting #42, #21.11; Bulletin of the American Astronomical Society, Vol. 42, p.987
Astronomy and Astrophysics
Astronomy
Scientific paper
Since the 1960's, most lunar photography and science covered the equatorial near side where the Apollo spacecraft landed. As a result, our understanding of lunar regolith depth was also limited to that region. Oberbeck and Quaide (JGR 1968) found regolith depths for the lunar near side: 3 m (Oceanus Procellarum), 16 m (Hipparchus), and 1-10 m at the Surveyor landing sites.
The Lunar Reconnaissance Orbiter Camera recently released high resolution images that sample regions all around the lunar globe. We examined a selection of these images across the lunar globe and determined a regolith depth for each area. To do this, we measured the ratio of the diameter of the flat floor to the diameter of the crater, and used it to calculate the regolith thickness using the method of Quaide and Oberbeck (JGR 1968). Analysis of the global distribution of lunar regolith depths will provide new insights into the evolution of the lunar surface and the frequency, distribution, and effect of impacts.
Bart Gwendolyn D.
Lawder M.
Nickerson R.
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