月表微波辐射对月壤厚度及其物理温度廓线的反演  

Microwave brightness temperature of lunar cratered surface and inversions of physical temperature profile and thickness of regolith layers

作　　者：宫晓蕙[1] 金亚秋[1] 

机构地区：[1]复旦大学波散射与遥感信息教育部重点实验室,上海200433

出　　处：《电波科学学报》2012年第1期1-11,共11页Chinese Journal of Radio Science

基　　金：国家自然科学基金项目(批准号:41071219;60971091)资助

摘　　要：以中国"嫦娥"1号(CE-1)卫星多通道微波辐射计对月球辐射亮度温度测量数据,选取月球两极、赤道与沿经度150°W作为目标区域,结合月表面地形的数字高程模型(DEM),讨论环形山月球表面(特别是光照度低的两极区域)微波辐射亮度温度的分布。由昼夜温度变化产生的月壤物理温度分布廓线的三层辐射传输理论模型为基础,结合阿波罗登月点月壤厚度测量数据,用CE-1多通道微波辐射观测数据反演与讨论了目标区域的月壤层物理温度廓线及其月壤层厚度。Based on the multi-channel brightness temperature observations of Chinese Chang＇ E-1 lunar satellite, inversions of the physical temperature profile of the lunar regolith medium and its layer thickness are discussed. As examples of two areas along the lunar equator and along the line of longitude 150°W the correspondence of the brightness temperature distribution to the lunar topography digital elevation mapping （DEM）is demonstrated, especially around lunar polar regions under poor solar illumination. Using a three-layer model of thermal radiative transfer, the physical temperature profile of regolith layer and its thickness are inverted. The results are compared with an empirical formulation of the physical temperature as a function of latitude based on some Apollo measurements.

关 键 词：“嫦娥”1号 环形山地形 微波辐射亮度温度 月壤物理温度廓线 月壤层厚度 

分 类 号：TN015[电子电信—物理电子学]