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Inversions of subsurface temperature and thermal diffusivity on the Moon based on high frequency of Chang'E-1 microwave radiometer data
Guangfei Wei; Xiongyao Li; Shijie Wang
Corresponding AuthorXiongyao Li
2016
Source PublicationIcarus
Volume275Issue:1Pages:97-106
Abstract
Thermal behavior of regolith reflects its thermophysical properties directly on the Moon. In this study, we employed the Fourier temperature model and inverted mean subsurface temperature and thermal diffusivity from high frequency of Chang'E-1 microwave radiometer data. The result showed that the mafic lunar mare endured higher thermal regime than that of feldspathic highland in a lunar cycle. As expected, the highland diffusivity with mean value 2.5 x 10(-4) cm(2)/s is greater than the mean value 0.3 x 10(-4) cm(2)/s of lunar mare. It indicated that the highland material responded more quickly than that of lunar mare to the changes of surface temperature in a diurnal day. In addition, thermal anomalous regions and hot/cold spots were also identified by diffusivity. For the thermal anomalous regions, Mare Tranquillitatis for example, with more contents of (FeO+TiO2), agglutinate and high maturity index corresponded to greater diffusivity (similar to 1.0 x 10(-4) cm(2)/s) and is more sensitive to the variations of temperature than the neighboring Mare Serenitatis (similar to 0.3 x 10(-4) cm(2)/s). Thus, inversion and comparison of regolith thermophysical properties can reveal more information of geological evolution on the Moon.
KeywordMoon Subsurface Regolith Microwave
Subject Area月球与行星科学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6216
Collection月球与行星科学研究中心_月球与行星科学研究中心_期刊论文
Corresponding AuthorXiongyao Li
Recommended Citation
GB/T 7714
Guangfei Wei,Xiongyao Li,Shijie Wang. Inversions of subsurface temperature and thermal diffusivity on the Moon based on high frequency of Chang'E-1 microwave radiometer data[J]. Icarus,2016,275(1):97-106.
APA Guangfei Wei,Xiongyao Li,&Shijie Wang.(2016).Inversions of subsurface temperature and thermal diffusivity on the Moon based on high frequency of Chang'E-1 microwave radiometer data.Icarus,275(1),97-106.
MLA Guangfei Wei,et al."Inversions of subsurface temperature and thermal diffusivity on the Moon based on high frequency of Chang'E-1 microwave radiometer data".Icarus 275.1(2016):97-106.
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