Dielectric Inversion of Lunar PSR Media with Topographic Mapping and Comment on “Quantification of Water Ice in the Hermite-A Crater of the Lunar North Pole”
2017; Institute of Electrical and Electronics Engineers; Volume: 14; Issue: 9 Linguagem: Inglês
10.1109/lgrs.2017.2705195
ISSN1558-0571
AutoresNiutao Liu, Hongxia Ye, Ya‐Qiu Jin,
Tópico(s)Soil Moisture and Remote Sensing
ResumoDielectric inversion of lunar permanently shadowed region (PSR) of moon poles has been studied for estimation of possible water-ice content. The Campbell model was directly applied to mini-SAR data for inversion on the Hermite-A crater region. However, this letter presents quantitative analysis that the lunar surface topography, i.e., surface roughness and slopes, and underlying dielectric media, and so on, can significantly affect this inversion. The model is actually degenerated into a half-space model without topographic account. This letter presents a two-layer model of Kirchhoff-approximation surface/small perturbation approximation subsurface to take account of all these topographic factors for PSR dielectric inversion.
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