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1997—2021年四川省干旱时空变化特征分析
蔡怡亨1,2(), 李帅3(), 张强4, 邓彪1,2, 罗玉1,2, 孙蕊1,2
Spatio-temporal variation of drought in Sichuan Province from 1997 to 2021
CAI Yiheng1,2(), LI Shuai3(), ZHANG Qiang4, DENG Biao1,2, LUO Yu1,2, SUN Rui1,2

图10. 1997—2021年四川省6个干旱气候区年累积MCIm的小波系数实部
(粗实线表示通过α=0.050显著性水平临界值,细实线表示边缘效应影响较大的区域)

Fig.10. The real part of the wavelet coefficients of annual accumulated MCIm in six drought climatic areas in Sichuan Province from 1997 to 2021
(The thick black contour designates critical value at the 0.050 significance level, and the cone of influence (COI) where edge effects might distort the picture is shown as a light contour)