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3 1921—2016年春季(a)、夏季(b)、秋季(c)和冬季(d)天津各站SPEI分布

Fig.3 The distributions of SPEI in spring (a), summer (b), autumn (c) and winter (d) during 1921-2016 at each station of Tianjin