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Global estimates of lunar surface chemistry derived from LRO diviner data
Ma, Ming1; Li, Bingze1; Chen, Shengbo1,2,3; Lu, Tianqi4; Lu, Peng2; Lu, Yu5,6; Jin, Qin7
2022-01
Source PublicationIcarus
ISSN0019-1035
Volume371
Abstract

Lunar surface chemical compositions are essential for understanding the geological evolution of the Moon. One of the mission objectives of Lunar Reconnaissance Orbiter (LRO) Diviner is to obtain the global Christiansen feature (CF) product and then employ it to estimate surface oxide abundances. However, the early CF products are mixed with the information on the viewing geometry, space weathering and compositions and cannot be directly used for surface composition inferences. Recently, the new Normalized to Equatorial Noon (NEN) and OMAT corrected NEN CF (OMATCF) images were calculated and provided for the correction of the viewing geometry and space weathering effects. Therefore in this paper, six Back Propagation Neural Network (BPNN) models are firstly established based on the relationships between the OMATCF values and ground truths of oxide abundances at 48 lunar sampling sites. Then, these BPNN training models are applied to the OMATCF map and six Diviner oxide products with the resolution of 32 pixels/degree (ppd) and the coverage of >99% (70°N/S) are calculated and presented. The comparisons with the previous four results indicate that the prediction accuracy of Diviner oxides products are the highest for SiO (1.79), AlO (2.04), MgO (0.88) and CaO (1.10) except for TiO (3.17, the second lowest) and FeO (1.93, the second highest). Meanwhile, a satisfactory consistency is observed between Diviner results and Clementine or Chang'E (CE)-1 results. Considering higher spatial resolution (128 ppd) CF product in the future, the Diviner oxides will be the better data sources for lunar geological applications.

KeywordChristiansen Feature Lro Diviner Moon Neural Network Oxide Abundances
DOI10.1016/j.icarus.2021.114697
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000703964300012
Scopus ID2-s2.0-85114785020
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Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorChen, Shengbo
Affiliation1.School of Surveying and Exploration Engineering, Jilin Jianzhu University, Changchun, China
2.School of Geo-exploration Science and Techniques, Jilin University, Changchun, China
3.Center for Excellence in Comparative Planetology, Chinese Academy of Sciences, Hefei, China
4.Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou, China
5.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China
6.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China
7.Space Science Institute, Macau University of Science and Techniques, Macau, China
Recommended Citation
GB/T 7714
Ma, Ming,Li, Bingze,Chen, Shengbo,et al. Global estimates of lunar surface chemistry derived from LRO diviner data[J]. Icarus, 2022, 371.
APA Ma, Ming., Li, Bingze., Chen, Shengbo., Lu, Tianqi., Lu, Peng., Lu, Yu., & Jin, Qin (2022). Global estimates of lunar surface chemistry derived from LRO diviner data. Icarus, 371.
MLA Ma, Ming,et al."Global estimates of lunar surface chemistry derived from LRO diviner data".Icarus 371(2022).
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