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基于嫦娥卫星CELMS数据的雨海新认识

发布日期:2017-11-09 10:15:36 阅读次数:[434]次 作者:

核心提示:时间:2017-11-09 14:30-16:30
地点:实验室四楼会议室
主讲人:孟治国 教授

基于嫦娥卫星CELMS数据的雨海新认识

报告人简介:

孟治国,博士,吉林大学地球探测科学与技术学院教授。主要从事致密介质中的微波辐射传输机理、月壤微波热辐射、月表热异常及其地质意义研究。先后承担国家自然科学基金、中国博士后基金、教育部博士点基金以及澳门科技大学月球与行星科学实验室开放课题等10余项,参与澳门科学技术发展基金、国家高科技发展技术(863)等项目多项。发表研究论文40余篇,其中SCI/EI检索论文20余篇,授权国家发明专利多项,参与出版专著1部,获得吉林省自然科学学术成果奖等三项。


摘要:

To evaluate the availability of the volcanic study using such data, the microwave sounder (CELMS) data from Change’E -2 satellite were employed to compare with the geologic results using optical data and radar data of Mare Imbrium, where is presented as the long duration and the last extensive phase of lunar volcanism. Firstly, the normalized brightness temperature (TB) is generated to eliminate its strong latitude-dependent effect, which implies a good correlation the titanium abundance (FTA). Moreover, difference between TB of the same frequency at noon and that at midnight (dTB) is deduced to evaluate the absorption features of the lunar regolith. According to change of the dTB with frequency, a new geologic perspective is given to Mare Imbrium. The new map agrees well with optical results in the regions with high FTA, while it coincides well with the interpretation maps by radar data in the regions with low FTA. The statistics results validate the three-phase volcanism in Mare Imbrium. This study also hints the special importance of the CELMS data in understanding the volcanic evolution of the Moon.

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