中国北方地区寒潮时空特征及其成因分析
乔雪梅, 刘普幸

The temporal and spatial characteristics and genesis of cold wave in northern China
Xuemei QIAO, Puxing LIU
图1 中国北方地理位置和气象站点分布
Fig.1 Map of geographical location and meteorological stations in northern China