作者单位:Zhaoyang Meng,Jianzhong Ma,Xiaolan Yu(Key Laboratory for Atmospheric Chemistry of CMA, Institute of Atmospheric Composition,Chinese Academy of Meteorological Sciences, Beijing 100081, China)Xiaofang Jia(CMA Meteorological Observation Centre, Beijing 100081, China)JianQiong Wang(Qinghai Province Meteorological Bureaus, Xining 810001, China)YiAn Jiang(Department of Logistic Service, Ministry of Railways of China, Beijing 100844, China)