1997—2021年四川省干旱时空变化特征分析
蔡怡亨, 李帅, 张强, 邓彪, 罗玉, 孙蕊

Spatio-temporal variation of drought in Sichuan Province from 1997 to 2021
CAI Yiheng, LI Shuai, ZHANG Qiang, DENG Biao, LUO Yu, SUN Rui
图4 1997—2021年四川省区域性干旱过程各特征变量频次分布
(a)持续日数,(b)平均强度,(c)平均影响范围,(d)综合强度指数
Fig.4 The frequency distribution of regional drought process characteristic variables in Sichuan Province from 1997 to 2021
(a) durative day,(b) average intensity,(c) average influential area,(d) comprehensive intensity index