Critical Role of the Meridional Background Flow in the Rossby Wave Propagation across the Tropical Easterly

Yanjie Li, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, Jianping Li, BNU Beijing Normal University, College of Global Change and Earth System Science (GCESS), Beijing, China, Sen Zhao, IAP Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China and Feifei Jin, University of Hawaii at Manoa, Honolulu, United States