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Comment on “Regolith Layer Thickness Mapping of the Moon by Radar and Optical Data,” by Y. G. Shkuratov and N. V. Bondarenko

✍ Scribed by Bruce A. Campbell

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
46 KB
Volume
158
Category
Article
ISSN
0019-1035

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✦ Synopsis

In a recent Icarus article, Shkuratov and Bondarenko (2001) propose a model for the depth of the lunar regolith based on 70-cm radar observations and near-infrared spectroscopy. This model treats the regolith as a single homogeneous layer of lossy dust, and ignores scattering by buried rocks. There is also an implicit assumption that the regolith substrate is everywhere of uniform morphology. Radar scattering from this substrate is treated using averaged Fresnel coefficients, with little explanation of how such a model might produce the observed lunar polarization properties. Taken together, these issues weaken the validity of the published regolith depth map.

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Regolith Layer Thickness Mapping of the
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✍ Yurij G. Shkuratov; Nataliya V. Bondarenko 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 439 KB

Mapping of regolith layer thickness for the lunar nearside is carried out with Arecibo radar data at 70 cm wavelength (T. W. Thompson 1987, Earth Moon Planets 37, 59-70) and distributions of iron and titanium content derived from Earth-based optical data (Yu. Shkuratov et al. 1999, Icarus 137, 222-2

Reply to the Comment by B. Campbell on t
Reply to the Comment by B. Campbell on the Paper “Regolith Layer Thickness Mapping of the Moon by Radar and Optical Data”
✍ Yu.G. Shkuratov; N.V. Bondarenko 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 56 KB

We are grateful to Dr. B. Campbell for his comment, as this gives an opportunity to discuss once again important problems concerning radar studies of the lunar surface and to compare the two model approaches presented in (Campbell et al. 1997) and our paper (Shkuratov and Bondarenko 2001). Before w