1 Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China. Electronic address: bjc@mail.iap.ac.cn.
2 Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
3 Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
4 Department of Atmospheric Science, Yunnan University, Kunming 650504, China.
5 Earth Observing Laboratory, National Center for Atmospheric Research, Boulder CO 80301, USA.
6 Institute for Atmospheric and Climate Science, Swiss Federal Institute of Technology, Zürich 168092, Switzerland.