Photometric modeling of the Moon using Lommel-Seeliger function and Chang'E-1 IIM data

被引：0

作者：

ZHANG Jiang ^{[1
,2
]}

LING ZongCheng ^{[2
]}

ZHANG WenXi ^{[3
]}

REN Xin ^{[4
]}

LI ChunLai ^{[4
]}

LIU JianZhong ^{[5
]}

机构：

[1] School of Physics, Shandong University

[2] School of Space Science and Physics & Shandong Provincial Key Laboratory of Optical Astronomy & Solar-Terrestrial Environment, Shandong University

[3] Academy of Opto-Electronics, Chinese Academy of Sciences

[4] National Astronomical Observatories, Chinese Academy of Sciences

[5] Institute of Geochemistry, Chinese Academy of Sciences

来源：

Science Bulletin | 2013年 / 36期

基金：

中国国家自然科学基金;

关键词：

Chang’E-1; IIM; Lommel-Seeliger; photometric model;

D O I：

暂无

中图分类号：

V476.3 [月球探测器]; TH744.1 [];

学科分类号：

0803 ; 082503 ;

摘要：

The imaging interferometer(IIM)aboard the Chang’E-1 lunar orbiter is the first multispectral imaging spectrometer for Chinese lunar missions.Before science applications(e.g.,FeO and TiO2mapping)of the IIM raw data,the radiance variation due to changes in illumination and viewing geometry has to be removed from the radiometrically calibrated IIM Level 2A images.To achieve this,we fit the IIM Level 2A radiance data with a Lommel-Seeliger photometric model consisting of an exponential term and a fourth order polynomial in the phase function,without distinguishing between lunar maria and highlands.The exponential and the fourth order polynomial parameters are derived separately by fitting to two datasets divided at a solar phase angle threshold,avoiding a decrease in the phase function close to zero phase angle.Different phase angle thresholds result in coincident fitting curves between 20°and 75°,while large discrepancies occur at other phase angles.Then the derived photometric model is used to normalize the IIM Level 2A data to radiance values at an incidence and phase angle of 30°and emission angle of 0°.Our photometric model is validated by comparing two photometrically normalized IIM radiance spectra covering the same areas,showing a relative deviation consistent with the IIM preflight calibration.

引用

页码：4588 / 4592

页数：5

共 16 条

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