Journals
  Publication Years
  Keywords
Search within results Open Search
Please wait a minute...
For Selected: Toggle Thumbnails
Characteristics of compound hot and drought disasters in Hubei under the background of climate change
FAN Jinjin, QIN Pengcheng, SHI Ruiqin, LI Mengrong, DU Liangmin
Journal of Arid Meteorology    2022, 40 (5): 780-790.   DOI: 10.11755/j.issn.1006-7639(2022)-05-0780
Abstract623)   HTML28)    PDF(pc) (6912KB)(1162)       Save

The frequent occurrence of extreme climate events caused by global climate change has become a common challenge for scientific community and human society. Due to diverse driving factors and complex spatio-temporal processes, there are significant differences in various regions of the world. Based on the daily precipitation, temperature and other observation data of 76 national meteorological stations in Hubei from 1961 to 2022, the regional hot and drought events in Hubei since 1961 are identified according to the regional hot process monitoring index and the regional drought process monitoring evaluation method. On this basis, the change characteristics of frequency, duration, intensity and influence of the events are analyzed. The results show that regional hot events increase in frequency and intensity, and occur year after year. The change trend of regional drought event frequency is not significant, but it presents a characteristic of mass, continuous and repeated occurrence. Compound hot and drought events increase significantly and their intervals are shortened. The comprehensive intensity of the hot process in the summer of 2022 is the strongest since 1961, which superimposes with the drought in the Yangtze River Basin, producing a chain complex impact from meteorological drought to hydrological drought, agricultural drought and socio-economic drought. Under the background of global warming, the frequent occurrence of extreme hot, drought, compound hot and drought events might become a new normal of climate in Hubei. It is urgent to strengthen the research on the causes of extreme events and disaster risk assessment, and improve the ability to cope with extreme hot, drought and their compound disasters.

Table and Figures | Reference | Related Articles | Metrics