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Concurrent droughts across Major River Basins of the World modulated by El Ni?o-Southern Oscillation

文献类型：期刊论文

作者Zhao, Tongtiegang1; Li, Xiaodong1; Li, Yu3; Zhang, Bingyao3; Zhang, Yongyong2
刊名JOURNAL OF HYDROLOGY
出版日期2024-11-01
卷号644页码:13
关键词Complex network Concurrent droughts El Nino-Southern Oscillation Major River Basins of the World Event synchronization Event coincidence
ISSN号0022-1694
DOI10.1016/j.jhydrol.2024.132112
产权排序3
英文摘要Droughts are among the costliest natural disasters with far-reaching impacts. Focusing on the influence of El Ni & ntilde;o-Southern Oscillation (ENSO) on worldwide droughts, this paper presents a formulation of the complex network of concurrent droughts across the Major River Basins (MRBs) of the World. Specifically, concurrent droughts are measured by event synchronization and interconnections of concurrent droughts are determined by significance test. Event coincidence analysis is incorporated into interconnections to quantify the effects of El Ni & ntilde;o and La Ni & ntilde;a events. A case study is devised for the 3-monthly standardized precipitation index (SPI) of Global Drought and Flood Catalogue during the period from 1950 to 2016. The results highlight that owing to the synchronization of droughts, there exist nine communities of the MRBs, each covering MRBs across different continents. While the correlation between SPI and ENSO exhibits mixed patterns for MRBs grouped by continent, there exist distinct patterns of correlation for MRBs grouped by community. Overall, 28.88% of concurrent droughts tend to be modulated by El Ni & ntilde;o events, especially over MRBs in South-West Pacific, South Africa, northern South America and South Asia. In the meantime, 23.51% of concurrent droughts tend to be modulated by La Ni & ntilde;a events, especially over MRBs in the United States, southwestern South America, northern China and Central Asia. The modulation of El Ni & ntilde;o and La Ni & ntilde;a is confirmed by composite analysis of SPI and detailed analysis of the Yangtze River Basin. Overall, the complex network provides useful information for drought forecasting and disaster mitigation.
WOS关键词CLIMATE ; ENSO ; TELECONNECTIONS ; PRECIPITATION ; IDENTIFICATION ; VARIABILITY ; EXTREMES
资助项目National Natural Science Foundation of China[2023YFF0804900] ; National Natural Science Foundation of China[52379033] ; Guangdong Pro-vincial Department of Science and Technology[2019ZT08G090]
WOS研究方向Engineering ; Geology ; Water Resources
语种英语
WOS记录号WOS:001331087000001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Guangdong Pro-vincial Department of Science and Technology
源URL[http://ir.igsnrr.ac.cn/handle/311030/209890]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Li, Xiaodong
作者单位1.Sun Yat Sen Univ, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Guangzhou, Peoples R China
2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Dalian Univ Technol, Sch Hydraul Engn, Dalian 116024, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Tongtiegang,Li, Xiaodong,Li, Yu,et al. Concurrent droughts across Major River Basins of the World modulated by El Ni?o-Southern Oscillation[J]. JOURNAL OF HYDROLOGY,2024,644:13.
APA Zhao, Tongtiegang,Li, Xiaodong,Li, Yu,Zhang, Bingyao,&Zhang, Yongyong.(2024).Concurrent droughts across Major River Basins of the World modulated by El Ni?o-Southern Oscillation.JOURNAL OF HYDROLOGY,644,13.
MLA Zhao, Tongtiegang,et al."Concurrent droughts across Major River Basins of the World modulated by El Ni?o-Southern Oscillation".JOURNAL OF HYDROLOGY 644(2024):13.

入库方式： OAI收割

来源：地理科学与资源研究所

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