[1]Jiang Shuai,Zhang Li,Jing Yuanshu,et al.Spatial and Temporal Distribution Characteristics of Regional Extreme Climate Events in China from 1981 to 2015[J].Research of Soil and Water Conservation,2023,30(06):295-306.[doi:10.13869/j.cnki.rswc.2023.06.018]
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Spatial and Temporal Distribution Characteristics of Regional Extreme Climate Events in China from 1981 to 2015
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 06
Page number:
295-306
Column:
Public date:
2023-10-10
- Title:
- Spatial and Temporal Distribution Characteristics of Regional Extreme Climate Events in China from 1981 to 2015
- Keywords:
- extreme climate events; continuous spatiotemporal extreme events; climatic regions; compound extreme events
- CLC:
- P467
- DOI:
- 10.13869/j.cnki.rswc.2023.06.018
- Abstract:
- [Objective] The aims of this study are to clarify the high incidence areas and time periods of extreme climate events within a continuous spatiotemporal range in the Chinese region, enhance understanding of the occurrence patterns of extreme climate events in China, and provide an important scientific basis for human society to mitigate and adapt to climate change. [Methods] We analyzed the spatiotemporal distribution characteristics of different types of extreme climate events in China from 1981 to 2015, using both the 1.5 times standard deviation and the continuous spatiotemporal extreme event analysis method based on the temperature and precipitation data of CRUNCEP. [Results] There were different regional patterns of extreme climate events in those years experiencing extreme annual precipitation and air temperature events for the whole country. For the years with extreme heavy annual precipitation in 1983, 1998 and 2012, extreme heavy annual precipitation events mainly occurred in the middle and lower reaches of the Yangtze River, the upper reaches of the Yangtze River and eastern Inner Mongolia, and the middle and lower reaches of the Yangtze River and Inner Mongolia, respectively. The national extreme drought event existed in 1986 and 2011. Most regions of the country were drier than that in normal years in 1986, while the extreme drought events mainly occurred in the subtropical and tropical monsoon climate region in 2011. The extreme high temperature and extreme low temperature events occurred in 1998 and 2012, respectively. The mean air temperature in most parts of the country was higher than usual in 1998. The extreme low temperature events in 2012 occurred frequently in the temperate continental climate region. During 1981—2015, 46% of extreme heavy precipitation events occurred in 2001—2015. There were 13% of extreme drought events which occurred in the subtropical tropical monsoon climate region from 2001 to 2015. Extreme high temperature events occurred frequently in 1991—2000(42%)and 2001—2015(43%). There were 21% of extreme low temperature events which occurred in the temperate continental climate region from 2001 to 2015. The proportion of compound extreme climate events had a decadal increasing trend. The extreme low temperature and heavy precipitation events had the highest proportion(34%), and concentrated in 2001—2015(23%). [Conclusion] That single-factor extreme climate events and composite extreme climate events have strong differences in the four major climate zones in China. In the future, it is necessary to strengthen the analysis of the spatiotemporal distribution characteristics of extreme climate events on short time scales such as day and month in regions of China.
- References:
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Last Update:
2023-10-10