Objective identification research on cold vortex and mid-summer rainy periods in Northeast China*
Gong Zhi-Qianga)†, Feng Tai-Chenb), Fang Yi-Hec)
       
(a) Multi-year average curve on daily 5-day moving average precipitation (in unit: mm) of Northeast China from April 1 to October 31; (b) the percentage (in unit: %) of the stations with single-station daily 5-day moving average precipitation beyond R and 2 R of total stations. The green line and red line in panel (a) denote the R and 2 R , respectively. The red line in panel (b) denotes 50%.