NDLI: Inversion of Dielectric Properties of the Lunar Regolith Media With Temperature Profiles Using Chang'e Microwave Radiometer Observations

Content Provider	IEEE Xplore Digital Library
Author	Xiaohui Gong Paige, D.A. Siegler, M.A. Ya-Qiu Jin
Copyright Year	2004
Abstract	As ground truth to utilize the surface temperature measurements from the Diviner Lunar IR Radiometer and the subsurface thermal properties from the Apollo heat-flow probes, we create a forward model to predict brightness temperatures (Tbs) from lunar regolith media in the microwave (MW) spectrum. These models can be then directly compared with and matched to the data from the MW radiometers flown aboard the Chang'e 1 and 2 (CE-1 and CE-2) missions. Based on an MW radiative transfer model and the least-mean-square method, the effective surface reflectivity and absorption coefficient of the lunar regolith are retrieved from multichannel MW Tbs. The effective complex dielectric constant of the lunar regolith as a function of the depth at different frequency channels is derived. Meanwhile, we find that the maximum penetration depth of the MW radiation at the Apollo 15 site ranges from about 30 cm at 37.0 GHz to 230 cm at 3.0 GHz and from 30 cm at 37.0 GHz to 560 cm at 3.0 GHz in the equatorial highlands, which are much lower than the previous results that were simply derived from FeO and TiO₂ abundance.
Sponsorship	IEEE Geoscience and Remote Sensing Society
Starting Page	384
Ending Page	388
Page Count	5
File Size	767906
File Format	PDF
ISSN	1545598X
Volume Number	12
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Moon Dielectric constant Media Microwave radiometry Temperature measurement Microwave FET integrated circuits Electromagnetic heating temperature profile Apollo heat flow brightness temperature (Tb) Chang'e 1 and 2 (CE-1 and CE-2) dielectric properties Diviner radiative transfer regolith media
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Geotechnical Engineering and Engineering Geology

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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