基于多源遥感数据的弯曲月溪形貌特征解译

Interpretation of Landform of Sinuous Rilles on the Moon Based on Multi-data of Remote Sensing

弯曲月溪是月球火山作用的产物,其形貌特征可以反映月海玄武岩的喷发历史和演化结果。基于最新高分辨率遥感月表图像和高精度DEM数据,分析月球Aristarchus地区弯曲月溪的形貌特征;结合Clementine UV/VIS多光谱图像的波段比值合成图像,分析月溪的物质成分。研究结果支持弯曲月溪的玄武岩熔岩流热侵蚀成因,表明研究区内的弯曲月溪具有相同的物源特征,月表坡度是控制月溪的主要因素。

Sinuous rilles are the most easily recognizable small volcanic features on the moon, which can provide information on volcanic history and evolution of the moon. Lunar orbiter laser altimeter （LOLA） data were used in this paper to supplement Chang E CCD and lunar reconnaissance orbiter camera （LROC） images for making detailed observations of morphologic and topographic characteristics of sinuous rilles in Aristarchus region. Clementine images from three bands of the ultraviolet - visible camera were used to analyze the compositional properties of sinuous rille substrates below the pyroclastics. Topographic data lend support to the theory that sinuous rilles were formed by the thermal erosion of the basalt lava, the compositional property of sinuous rille substrates is the same, and the slope rather than the regional structural pattern is the dominant factor controlling the rille.