New Insights Into the Thermophysical Behaviors of the Glushko Area Revealed by CE-2 CELMS Data

Yiyi Lin, Zhanchuan Cai, Mingwen Zhu, Yong Fan, Xiaoxi Kong, Yuyun Chen

Abstract: Chang’E lunar microwave sounder (CELMS) data have great significance for studying the lunar surface’s thermophysical features and internal structure. In this study, an area centered at Glushko crater (8.4°N, 77.6°W), one of the typical Copernican craters on the Moon, is selected as the study area. Its microwave thermal emission (MTE) features were investigated with the CE-2 CELMS data. The main results are as follows. First, the Glushko crater is revealed as a cold spot for the first time due to its special brightness temperature ( $T_{B}$ ) performance. Second, the correlation analysis shows that the high rock abundance (RA) plays the most important role in the $T_{B}$ performance observed at the Glushko crater. Moreover, other factors, such as the ilmenite and the surface topography, contribute to the $T_{B}$ distribution to a certain degree, but they do not possess a decisive influence. Furthermore, the spatial difference of $T_{B}$ of the Glushko crater floor reveals that lunar rocks are probably less abundant in the southern and western parts of the Glushko crater.