Space Sciences Seminar (39th)
Study on Lidar Observation Technology and Coupling Process of Middle and Upper Atmosphere
Topic: Study on Lidar Observation Technology and Coupling Process of Middle and Upper Atmosphere
Presenter: Prof. Xue Xianghui
Abstract
The middle and upper atmosphere is the key region of the earth's atmosphere transition to space. Its state is affected by complex atmospheric phenomena related to the sun-earth relationship and meteorological changes, and there is coupling between the lower ionosphere and the troposphere, which is a very complex system. At the same time, the atmosphere at this height is thin and moleculer-based, making detection difficult. Optical remote sensing, especially active lidar technology, is the most effective method to detect the middle and upper atmosphere. This report mainly introduces the key technologies of various lidar observation systems of middle and upper atmosphere independently developed by USTC in recent years, and the comprehensive detection results of various key parameters of middle and upper atmosphere (such as wind field, temperature, density, etc.). At the same time, based on ground-based observations, some research results on the coupling of the ionospheric/tropospheric atmosphere with meteor-injected materials and the response of the middle and upper atmosphere to solar/geomagnetic activities are briefly summarized, focusing on the dynamics of the middle and upper atmosphere and its coupling with the pre-other circles. The scientific achievements based on the autonomous equipment have promoted the research on the middle and upper atmosphere, and deepened the understanding of important physical processes such as the exchange of energy and momentum, atmospheric circulation, structure and change in the middle and upper atmosphere.
Introduction to the speaker：Prof. Xianghui Xue, University of Science and Technology of China. He has published more than 80 SCI papers in ACP, APJ, GRL, JAMES, JGR and other journals. He has been selected into one hundred national Excellent doctoral theses, Youth Award of The Chinese Academy of Sciences, Outstanding Young Scientist of the Chinese Academy of Sciences, member of the 863 Theme Expert Group, Outstanding Youth Fund of the National Natural Science Foundation of China, and Outstanding Youth Fund of the National Natural Science Foundation of China. As the second accomplisher, his research achievements won the first prize of The Science and Technology Award of Anhui Province in 2016 (Natural Science). Now he is employed as the deputy chief technologist of the National University of Science and Engineering 'Meridian Project Phase II', the deputy head of the 'Meng Cheng National Geophysical Field Scientific Observation and Research Station' of the Ministry of Science and Technology, and the deputy director of the Planetary Physics Committee of the Chinese Geophysical Society.
