青海冬季区域持续性低温事件变化及成因分析
申红艳, 段丽君, 李万志, 冯晓莉, 封国林

Regional persistent low temperature events in winter in Qinghai Province: variation and causes
Hongyan SHEN, Lijun DUAN, Wanzhi LI, Xiaoli FENG, Guolin FENG
图2 16个全省类区域持续性低温事件中500 hPa高度场(等值线)及其距平场(阴影区)的合成(单位: gpm)
Fig.2 500 hPa height fields (contour) and its anomaly fields (shadow) for the 16 province pattern regional persistent low temperature events (unit: gpm): 15 d (a), 12 d (b), 9 d (c), 6 d (d), 3 d (e) before the event, on the day of event (f) and 3 d after the event (g)