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标题：An improved scheme for modeling the reflectance spectra of space-weathered regoliths
其他标题：An improved scheme for modeling the reflectance spectra of space-weathered regoliths
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作者：Tokuhiro Nimura ; Takahiro Hiroi ; Carle M. Pieters 等
期刊名称：Earth, Planets and Space
电子版ISSN：1880-5981
出版年度：2008
卷号：60
期号：4
页码：271-275
DOI：10.1186/BF03352791
出版社：Springer Verlag
摘要：In the remote detection of mineral compositions of planetary surface materials on airless bodies, space weathering is an obstacle which makes reflectance spectra redder and darker and weakens spectral features. This study attempts to model an effect of space weathering due to vapor coating by accounting for the change in surface reflectivity of regolith particles wherein nanophase-reduced iron (npFe 0 ) particles are concentrated on their surfaces. When applied to a suite of reflectance spectra of lunar soils having different degrees of space weathering, this model can estimate the degrees of space weathering in terms of the thicknesses of the coating layer and provide an absorption coefficient spectrum of the host material.
关键词：Space weathering ;airless bodies ;vapor coating ;surface reflectivity ;regolith particles ;modeling