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Time distribution pattern and spatial heterogeneity of hourly scale event-based extreme precipitation in China

文献类型：期刊论文

作者Zhang, Yihui2; Liang, Kang; Liu, Changming
刊名JOURNAL OF HYDROLOGY
出版日期2023-07-01
卷号622页码:129712
关键词Extreme climate events Hourly scale event-based extreme precipitation (HEEP) Time distribution pattern Seasonal proportion Spatial heterogeneity
ISSN号0022-1694
DOI10.1016/j.jhydrol.2023.129712
产权排序1
文献子类Article
英文摘要Extreme precipitation occurs naturally in the form of events, and the spatio-temporal distribution pattern of event-based extreme precipitation is of great significance to flood disaster prevention and water resources protection. This study proposed the concept of hourly scale event-based extreme precipitation (HEEP), referring to a precipitation event with at least an hourly precipitation extreme (exceeding the 99th percentile threshold). Then we identified the dominant time distribution pattern (TDP), analyzed the seasonal proportion and distribution, and investigated the spatial distribution of three basic features (total frequency, amount, and duration) of HEEP from 2008 to 2017 in China and its nine major river basins. Results showed that over 90% of the areas in China were dominated by short-duration HEEP (S-HEEP, less than eight hours). While the rest areas were led by long-duration HEEP (L-HEEP, more than eight hours), mainly concentrated on the middle and lower reaches of the Yangtze River and southeast coastal areas of China. Areas dominated by S-HEEP were more than L-HEEP in different seasons except in winter. Three basic features of HEEP showed similar spatial distribution patterns of high in southeastern China and low in northwestern China, indicating HEEP frequently occurred in southeastern China with relatively large amounts and long duration. The concept of HEEP can provide new ideas for regional and global extreme precipitation research.
WOS关键词MINIMUM INTEREVENT TIME ; FUTURE CHANGES ; RAIN EVENTS ; TRENDS ; TEMPERATURE ; FREQUENCY ; INCREASE ; BASIN
WOS研究方向Engineering ; Geology ; Water Resources
WOS记录号WOS:001017264500001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/194389]  
专题陆地水循环及地表过程院重点实验室_外文论文
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yihui,Liang, Kang,Liu, Changming. Time distribution pattern and spatial heterogeneity of hourly scale event-based extreme precipitation in China[J]. JOURNAL OF HYDROLOGY,2023,622:129712.
APA Zhang, Yihui,Liang, Kang,&Liu, Changming.(2023).Time distribution pattern and spatial heterogeneity of hourly scale event-based extreme precipitation in China.JOURNAL OF HYDROLOGY,622,129712.
MLA Zhang, Yihui,et al."Time distribution pattern and spatial heterogeneity of hourly scale event-based extreme precipitation in China".JOURNAL OF HYDROLOGY 622(2023):129712.

入库方式： OAI收割

来源：地理科学与资源研究所

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