Shaojie Zhao¹, Suiyan Fu¹, Weijie Sun², Xuzhi Zhou¹, Zuyin Pu¹, Lun Xie¹, Tong Wu¹, Ying Xiong¹ and Hui Zhang¹, (1)Peking University, School of Earth and Space Sciences, Beijing, China, (2)University of Michigan Ann Arbor, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States