Phase-angle dependence of colour ratios and potential implications for lunar remote sensing

doi:10.1051/0004-6361/202039385

NSSC OpenIR

	Phase-angle dependence of colour ratios and potential implications for lunar remote sensing
Alternative Title	WOS:000595939200005
	Yang, Yazhou ; Ma, Pei 1; Qiao, Le 2; Zhang, Hao 1,3; Jin, Weidong 4; Jiang, Te 1; Liu, Yang 3; Zou, Yongliao
Source Publication	ASTRONOMY & ASTROPHYSICS
	2020
Volume	644 Pages:A30
DOI	10.1051/0004-6361/202039385
ISSN	0004-6361
Language	英语
Keyword	instrumentation: photometers techniques: photometric Moon planets and satellites: surfaces planets and satellites: composition CHANGE-3 LANDING SITE BIDIRECTIONAL REFLECTANCE PHOTOMETRIC PROPERTIES OPTICAL MEASUREMENTS TIO2 CONTENT RESOURCES ABUNDANCE ROCK IRON SIDE
Abstract	Context. The colour-ratio technique has been widely used in mapping planetary surfaces, but its solar phase-angle dependence is not well understood. Understanding the phase-angle dependence of the colour ratio would enhance our abilities in interpreting planetary remote sensing data.Aims. We aim to investigate the dependence of the colour ratio indices on mineralogy, phase angle, particle size, and the degree of simulated space weathering.Methods. We measured the multi-band (i.e. 458, 633, 750, and 905 nm) and multi-angle reflectance spectra of four typical lunar-type minerals with different particle sizes using a custom multi-angular imaging device.Results. The colour ratio does have a phase-angle dependence that is more sensitive to the mineralogy and wavelength and less sensitive to particle size distribution.Conclusions. The combined analysis of the colour ratio and its phase dependence can improve efficiency in mapping the lunar surface. With a prior knowledge of the phase behaviours of colour ratios of specific lunar-type minerals, an optimised colour ratio at certain phase angles can be found to efficiently distinguish the composition of a target surface.
Indexed By	SCI
Citation statistics
Document Type	期刊论文
Identifier	http://ir.nssc.ac.cn/handle/122/7596
Collection	中国科学院国家空间科学中心
Affiliation	1.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China 2.China Univ Geosci, Sch Earth Sci, Planetary Sci Inst, Wuhan, Peoples R China 3.Shandong Univ, Sch Space Sci & Phys, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei, Peoples R China 5.Univ Alabama, Tuscaloosa, AL USA
Recommended Citation GB/T 7714	Yang, Yazhou,Ma, Pei,Qiao, Le,et al. Phase-angle dependence of colour ratios and potential implications for lunar remote sensing[J]. ASTRONOMY & ASTROPHYSICS,2020,644:A30.
APA	Yang, Yazhou.,Ma, Pei.,Qiao, Le.,Zhang, Hao.,Jin, Weidong.,...&Zou, Yongliao.(2020).Phase-angle dependence of colour ratios and potential implications for lunar remote sensing.ASTRONOMY & ASTROPHYSICS,644,A30.
MLA	Yang, Yazhou,et al."Phase-angle dependence of colour ratios and potential implications for lunar remote sensing".ASTRONOMY & ASTROPHYSICS 644(2020):A30.

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