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中国西北干旱区降雪和极端降雪变化特征及未来趋势
赵求东1,2(), 赵传成3, 秦艳4, 苌亚平1,2
The change features and future trend of snowfall and extreme snowfall in the arid areas of Northwest China
Qiudong ZHAO1,2(), Chuancheng ZHAO3, Yan QIN4, Yaping CHANG1,2

图7. 西北干旱区平均的年降雪量(a)、 年极端降雪量(b)、 降雪发生次数(c)和极端降雪发生次数(d)的历史及未来的变化(黑色线为4个模式模拟结果的平均值, 灰色部分为4个模式模拟结果的范围)

Fig.7. The inter-annual variations of historical and future mean annual snowfall amount (a), extreme snowfall amount (b), occurrences of snowfall (c) and occurrences of extreme snowfall (d) in the arid areas of Northwest China (solid balck lines represent represents the ensemble means, and the gray swath represents the spans of results from 4 GCMs)