Effect of Lunar Complex Illumination on In Situ Measurements Obtained Using Visible and Near-Infrared Imaging Spectrometer of Chang'E-4

doi:10.3390/rs13122359

	Effect of Lunar Complex Illumination on In Situ Measurements Obtained Using Visible and Near-Infrared Imaging Spectrometer of Chang'E-4
	Xu, Jiafei1,2,3 ; Wang, Meizhu 1; Lin, Honglei 4; Wang, Rong 1; Feng, Qi 2; Xu, Xuesen 5
	2021-06
发表期刊	REMOTE SENSING (IF:4.2[JCR-2023],4.9[5-Year])
EISSN	2072-4292
卷号	13 期号:12
DOI	10.3390/rs13122359
摘要	In-situ measurements of the spectral information on the lunar surface are of significance to study the geological evolution of the Moon. China's Chang'E-4 (CE-4) Yutu-2 rover has conducted several in-situ spectral explorations on the Moon. The visible and near-infrared imaging spectrometer (VNIS) onboard the rover has acquired a series of in-situ spectra of the regolith at the landing site. In general, the mineralogical research of the lunar surface relies on the accuracy of the in-situ data. However, the spectral measurements of the Yutu-2 rover may be affected by shadows and stray illumination. In this study, we analyzed 106 CE-4 VNIS spectra acquired in the first 24 lunar days of the mission and noted that six of these spectra were affected by the shadows of the rover. Therefore, a method was established to correct the effects of the rover shadow on the spectral measurements. After shadow correction, the FeO content in the affected area is corrected to 14.46 wt.%, which was similar to the result calculated in the normal regolith. Furthermore, according to the visible images, certain areas of the explored sites were noted to be unusually bright. Considering the reflectance, geometric information, and shining patterns of the multi-layer insulation (MLI), we examined the influence of the specular reflection of the MLI on the bright spot regionsd, and found that the five sets of data were likely not affected by the specular reflection of the MLI. The results indicated that the complex illumination considerably influences the in situ spectral data. This study can provide a basis to analyze the VNIS scientific data and help enhance the accuracy of interpretation of the composition at CE-4 landing sites.
关键词	moon Chang'E-4 VNIS multi-layer insulation shadow effects
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收录类别	SCIE
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000666331200001
出版者	MDPI
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/127616
专题	信息科学与技术学院_硕士生上海科技大学
通讯作者	Feng, Qi
作者单位	1.Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Space Act Optoelect Technol, Shanghai 200083, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Infrared Syst Detect & Imaging Technol, Shanghai 200083, Peoples R China; 3.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China; 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China; 5.Univ Chinese Acad Sci, Sch Phys & Optoelect Engn, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
第一作者单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Xu, Jiafei,Wang, Meizhu,Lin, Honglei,et al. Effect of Lunar Complex Illumination on In Situ Measurements Obtained Using Visible and Near-Infrared Imaging Spectrometer of Chang'E-4[J]. REMOTE SENSING,2021,13(12).
APA	Xu, Jiafei,Wang, Meizhu,Lin, Honglei,Wang, Rong,Feng, Qi,&Xu, Xuesen.(2021).Effect of Lunar Complex Illumination on In Situ Measurements Obtained Using Visible and Near-Infrared Imaging Spectrometer of Chang'E-4.REMOTE SENSING,13(12).
MLA	Xu, Jiafei,et al."Effect of Lunar Complex Illumination on In Situ Measurements Obtained Using Visible and Near-Infrared Imaging Spectrometer of Chang'E-4".REMOTE SENSING 13.12(2021).