Open AccessPrognosis of Ti abundance in Sinus Iridum using a nonlinear analysis of Chang' E‐1 Interference Imaging Spectrometer imagery
Author(s) -
Tingyan Xing,
Fujiang Liu,
Li Liu,
Chan Li,
Ying Zhang,
Le Qiao,
Rong Yang,
Xiaopo Zheng,
Meng Zhu,
Qi Zhang
Publication year - 2015
Publication title -
earth and space science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.843
H-Index - 23
ISSN - 2333-5084
DOI - 10.1002/2014ea000023
Subject(s) - hyperspectral imaging , imaging spectrometer , abundance (ecology) , clementine (nuclear reactor) , spectrometer , absorption (acoustics) , interference (communication) , multispectral image , materials science , impact crater , optics , wavelength , analytical chemistry (journal) , remote sensing , geology , physics , chemistry , astrobiology , channel (broadcasting) , electrical engineering , engineering , fishery , biology , chromatography
We report here on the relationship between titanium abundance and its spectral features on the Moon, using 36 craters exposed in Sinus Iridum, a landing site for China's Lunar Exploration Program. Six absorption parameters (full width at half maximum, absorption depth ( D ), absorption position ( λ ), absorption area ( A ), absorption asymmetry ( S ), and ( R min )) at the wavelength of 500–550 nm were computed, and the lowest reflectance values ( R min ) to characterize the properties of titanium abundance and its spectral features were calculated. The correlation between R min and TiO 2 abundance calculated by Clementine multispectral images is 0.812, and a second‐order polynomial fits the data better with a correlation of 0.837. The TiO 2 abundance inversed by the Chang' E‐1 Interference Imaging Spectrometers (IIM) data is thus relatively higher than that revealed by the Clementine data. This good correlation between R min and TiO 2 abundance may thus be used very effectively to estimate the Ti distribution on the surface of the Moon by IIM hyperspectral data.