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Simulations of lunar equatorial regolith temperature profile based on measurements of Diviner on Lunar Reconnaissance Orbiter
Ran Zhen; Wang ZhenZhan; Wang, ZZ (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationSCIENCE CHINA-EARTH SCIENCES
2014
Volume57Issue:9Pages:2232-2241
ISSN1674-7313
Language英语
KeywordDiviner Radiometer Equation Of Heat Conduction Lunar Temperature Profile Infrared Brightness Temperature
AbstractLunar equatorial regolith temperature profiles were simulated using the half-limited solid heat conduction model. Based on the infrared data measured using the Diviner radiometer on the Lunar Reconnaissance Orbiter launched by the United Sates in June 2009, three factors influencing temperature profiles were analyzed. The infrared brightness temperature data from Diviner channel 7 were used to retrieve surface temperature. In simulating regolith temperature profiles, the retrieved temperature, rather than temperatures calculated from solar radiance at the lunar surface, were used as the input for surface temperature in solving the heat-conductive equation. The results showed that the bottom-layer temperature at depths of 6 m approached almost 246 K after 10000 iterations. The temperature was different to the temperature of 250 K at the same depth encountered in simulations using solar radiance. Simulations from both methods of surface temperatures over a lunar day gave similar variations. At lunar night, the temperature difference between the two was about 2 K; the main differences occurred when the solar elevation angle was very low when surface temperatures are largely affected by terrain topography. With no certainty in lunar temperature profiles at present, the advantage of the retrieval method using infrared sensor data as input to the boundary conditions in solving the lunar heat conduction equation is that simulations of surface temperature variations are more accurate. This is especially true in areas with large variations in terrain topography, where surface temperatures vary greatly because of shading from the sunlight.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4521
Collection微波遥感部
Corresponding AuthorWang, ZZ (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Ran Zhen,Wang ZhenZhan,Wang, ZZ . Simulations of lunar equatorial regolith temperature profile based on measurements of Diviner on Lunar Reconnaissance Orbiter[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(9):2232-2241.
APA Ran Zhen,Wang ZhenZhan,&Wang, ZZ .(2014).Simulations of lunar equatorial regolith temperature profile based on measurements of Diviner on Lunar Reconnaissance Orbiter.SCIENCE CHINA-EARTH SCIENCES,57(9),2232-2241.
MLA Ran Zhen,et al."Simulations of lunar equatorial regolith temperature profile based on measurements of Diviner on Lunar Reconnaissance Orbiter".SCIENCE CHINA-EARTH SCIENCES 57.9(2014):2232-2241.
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