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 9 1961—2023年宁夏旱涝急转事件急转时长占比及累积频率

Fig.9 Proportion of drought-flood abrupt alternation events with different transitions duration and their cumulative frequencies in Ningxia from 1961 to 2023