Kaihui Xia¹, Sheng-Shi Mei¹, Cheng-Cheng Liu¹, Zhixuan Bai², Jianchun Bian^2,3 and Shang Liu¹, (1)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (2)Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (3)University of Chinese Academy of Sciences, College of Earth Sciences, Beijing, China