利用绕月探测工程的亮度温度数据反演月壤厚度的模式研究

项目名称： 利用绕月探测工程的亮度温度数据反演月壤厚度的模式研究

项目编号： No.40873055

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 轻工业、手工业

项目作者： 王世杰

作者单位： 中国科学院地球化学研究所

项目金额： 44万元

中文摘要： 项目主要利用嫦娥一号卫星获得的微波探测仪科学数据和激光高度计数据，从理论和探测数据两个方面着手，对影响月球表层微波辐射过程的介电常数、月表物理温度、地球反照以及月表粗糙度等进行了分析和探讨。构建月表物质介电常数估算模型，绘制全月球介电常数分布图；根据嫦娥一号卫星微波数据分析了月表物理温度、地球反照和粗糙度对亮度温度的影响大小；考虑各种因素的影响，改进月表微波辐射模型，探索月壤厚度的反演方法，对月球月壤厚度分布进行了初步估算，给出月壤厚度分布图。

中文关键词： 月壤厚度；微波；介电常数；嫦娥卫星；亮度温度

英文摘要： The explored data of microwave radiometer (MRM) and laser latitude meter (LAM) loaded in Chang’-1 lunar satellite is analyzed and discussed in this program. With the theoretical analysis and data analysis, main factors that affect the microwave transportation in lunar soil layer are discussed detail, which include the dielectric constant, lunar surface temperature, earthshine, and roughness. By implementation of this program, a dielectric constant model termed with density and elemental content has been proposed, and then the global dielectric constant distribution have been mapped. The effect of lunar surface temperature, earthshine, and roughness on microwave transportation is also quantified based on the analysis of Chang’-1 MRM data. The model of lunar layer microwave transportation has been improved by taking the physical temperature, earthshine and roughness into account. With an appropriate inversion method, a primary result has been estimated, and the lunar soil thickness distribution has been also primary mapped.

英文关键词： lunar soil thickness; microwave; dielectric constant; Chang'e lunar satellite; brightness temperature