School of Atmospheric Sciences Chengdu University of Information Technology and Plateau Atmosphere and Environment Key Laboratory of Sichuan Province Chengdu 610225 China;
School of Atmospheric Sciences Chengdu University of Information Technology and Plateau Atmosphere and Environment Key Laboratory of Sichuan Province Chengdu 610225 China;
School of Atmospheric Sciences Chengdu University of Information Technology and Plateau Atmosphere and Environment Key Laboratory of Sichuan Province Chengdu 610225 China;
El Ni?o-Southern Oscillation; stratospheric water vapor; seasonal evolution;