宁夏次季节旱涝急转事件识别及演变特征

高娜, 王素艳, 李欣, 高睿娜, 王岱

Identification and evolution characteristics of sub-seasonal drought-flood abrupt alternation events in Ningxia

GAO Na, WANG Suyan, LI Xin, GAO Ruina, WANG Dai

图8 1961—2023年宁夏旱涝急转事件中各候日平均急转点出现频次

Fig.8 Frequency of abrupt transition points of daily average for each pentad in drought-flood abrupt alternation events in Ningxia during 1961-2023