西南地区旱涝演变与ENSO事件的关系
刘琳, 徐宗学, 杨晓静

Relationship between drought/flood and ENSO events in Southwest China
LIU Lin, XU Zongxue, YANG Xiaojing
图5 ENSO事件等级的小波分析
Figure 5 Wavelet analysis of El Nino-Southern Oscillation (ENSO) event grade