基于SPEI的近百年天津地区气象干旱时空演变特征

王敏, 尹义星, 陈晓旸, 郭阳, 徐梅, 罗传军

Changing characteristics of meteorological drought in Tianjin for almost one century based on standardized precipitation evapotranspiration index

WANG Min, YIN Yixing, CHEN Xiaoyang, GUO Yang, XU Mei, LUO Chuanjun

图6 天津地区1921—2016年春季(a)、夏季(b)、秋季(c)和冬季(d)SPEI与PDO相关系数空间分布(紫色三角形表示通过α=0.05的显著性检验)

Fig.6 The spatial distribution of correlation coefficient between SPEI and PDO in spring (a), summer (b), autumn (c) and winter (d) during 1921-2016 in Tianjin region (the purple triangle passing significant test at 0.05)