Yan Song, China Meteorological Administration, Beijing, China, Zhicai Li, Shanxi Climate Center, Taiyuan 030006, China, Shanxi, China, Ziniu Xiao, State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China and Yu Gu, UCLA 405 Hilgard Ave, Los Angeles, CA, United States