1 HIWeather International Coordination Office, Chinese Academy of Meteorological Sciences, Beijing 100081, China; Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China. Electronic address: qzhang@pku.edu.cn.
2 HIWeather International Coordination Office, Chinese Academy of Meteorological Sciences, Beijing 100081, China.
3 Bureau of Meteorology, Melbourne, Victoria 3001, Australia.
4 Met Office, Exeter, Devon EX1 3PB, UK.
5 GNS Science/Massey University, Willington 6140, New Zealand.
6 University of Waterloo and Environment and Climate Change Canada, Waterloo N2L 3G1, Canada.
7 Institute of Atmospheric Physics, University of Mainz, Mainz 55128, Germany.
8 National Center for Atmospheric Research, Boulder, CO 80307-3000, USA.
9 University of Leeds, Leeds LS2 9JT, UK.
10 Deutscher Wetterdienst, Research and Development, Offenbach 63067, Germany.
11 World Weather Research Division, World Meteorological Organization, Geneva 1211, Switzerland.