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6 中国北方寒潮灾害风险区划
Fig.6 Zoning map of disaster risk of cold wave in northern China