1450—1949年川渝地区干旱时空变化
许斌, 毛旭锋, 李永飞, 谢贤健, 鲍文

Spatial-temporal Variation of Drought in Sichuan and Chongqing From 1450 to 1949
Xu Bin, Mao Xufeng, Li Yongfei, Xie Xianjian, Bao Wen
图3 川渝地区1450—1949年干旱序列小波系数实部分布
红色:干旱,蓝色:非干旱,0线:突变线
Fig. 3 Real distribution of Morlet wavelet coeffocoent of drought series in Sichuan and Chongqing from 1450 to 1949