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7 天津地区春季(a)、夏季(b)、秋季(c)和冬季(d)SPEI的Hurst指数空间分布(蓝色三角形表示H>0.65)

Fig.7 The spatial distribution of Hurst index of SPEI in spring (a), summer (b), autumn (c) and winter (d) in Tianjin region (The blue triangles represent H greater than 0.65)