1977 - 2017年雅江流域中下游大气/地面冻融指数时空变化特征
刘磊, 罗栋梁

Spatial and temporal characteristics of air/ground freezing and thawing index in the middle and lower reaches of the Yarlung Zangbo River during 1977 - 2017
Lei LIU, Dongliang LUO
图6 雅江中下游多年大气、 地面负温日数变化特征
Fig.6 Characteristics of the number of days with negative air and ground surface temperatures in the middle and lower reaches of the Yarlung Zangbo River, southwest China during 1977 - 2017