1961—2018年四川盆地极端伏旱日数准2 a周期变化特征及其可能成因
周斌,王春学,张顺谦

Quasi-biennial Period Characteristics of Extreme Summer Drought Days and Its Possible Causes in Sichuan Basin During 1961-2018
Bin ZHOU,Chunxue WANG,Shunqian ZHANG
图6 四川盆地极端伏旱日数EOF第一模态时间系数的滑动t检验
Fig.6 The sliding t test of time coefficient of the EOF1 mode of extreme summer drought days in Sichuan Basin