Impacts of El Nino-southern oscillation on global runoff: Characteristic signatures and potential mechanisms
文献类型：期刊论文
| 作者 | You, Yuanyuan2,3,4; Liu, Jianyu2,3,4; Zhang, Yongqiang5; Beck, Hylke E.6; Gu, Xihui1; Kong, Dongdong1 |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 35期号:10页码:17 |
| ISSN号 | 0885-6087 |
| 关键词 | atmosphere circulation characteristic signatures El Nino-southern oscillation potential mechanisms runoff sensitivity analysis |
| DOI | 10.1002/hyp.14367 |
| 通讯作者 | Liu, Jianyu(liujy@cug.edu.cn) ; Gu, Xihui(guxihui421@163.com) |
| 英文摘要 | Runoff signatures, including low flow, high flow, mean flow and flow variability, have important implications on the environment and society, predominantly through drought, flooding and water resources. Yet, the response of runoff signatures has not been previously investigated at the global scale, and the influencing mechanisms are largely unclear. Hence, this study makes a global assessment of runoff signature responses to the El Nino and La Nina phases using daily streamflow observations from 8217 gauging stations during 1960-2015. Based on the Granger causality test, we found that similar to 15% of the hydrological stations of multiple runoff signatures show a significant causal relationship with El Nino-southern oscillation (ENSO). The quantiles of all runoff signatures were larger during the El Nino phase than during the La Nina phase, implying that the entire flow distribution tends to shift upward during El Nino and downward during La Nina. In addition, El Nino has different effects on low and high flows: it tends to increase the low and mean flow signatures but reduces the high flow and flow variability signatures. In contrast, La Nina generally reduces all runoff signatures. We highlight that the impacts of ENSO on streamflow signatures are manifested by its effects on precipitation (P), potential evaporation (PET) and leaf area index (LAI) through ENSO-induced atmospheric circulation changes. Overall, our study provides a comprehensive picture of runoff signature responses to ENSO, with valuable insights for water resources management and flood and drought disaster mitigation. |
| WOS关键词 | HYDROLOGICAL SIGNATURES ; PRECIPITATION EXTREMES ; CATCHMENT ATTRIBUTES ; CAUSAL RELATIONSHIPS ; CLIMATE VARIABILITY ; ENSO ; STREAMFLOW ; ANOMALIES ; PATTERNS ; TRENDS |
| 资助项目 | China Postdoctoral Science Foundation[BX20190301] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[CUG2106351] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[G1323521106] ; National Natural Science Foundation of China[41901041] ; National Natural Science Foundation of China[42001042] ; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute[U2020nkms01] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG2018] ; Visiting Researcher Fund Program of the State Key Laboratory of Water Resources and Hydropower Engineering Science[2020SWG02] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000711813100020 |
| 资助机构 | China Postdoctoral Science Foundation ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Natural Science Foundation of China ; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; Visiting Researcher Fund Program of the State Key Laboratory of Water Resources and Hydropower Engineering Science |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/167770]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Jianyu; Gu, Xihui |
| 作者单位 | 1.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan 430074, Peoples R China 2.China Univ Geosci, Sch Geog & Informat Engn, Lab Crit Zone Evolut, Wuhan 430074, Peoples R China 3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Peoples R China 4.Nanjing Hydraul Res Inst, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 6.European Commiss, Directorate Gen Joint Res Ctr, Ispra, VA, Italy |
| 推荐引用方式 GB/T 7714 | You, Yuanyuan,Liu, Jianyu,Zhang, Yongqiang,et al. Impacts of El Nino-southern oscillation on global runoff: Characteristic signatures and potential mechanisms[J]. HYDROLOGICAL PROCESSES,2021,35(10):17. |
| APA | You, Yuanyuan,Liu, Jianyu,Zhang, Yongqiang,Beck, Hylke E.,Gu, Xihui,&Kong, Dongdong.(2021).Impacts of El Nino-southern oscillation on global runoff: Characteristic signatures and potential mechanisms.HYDROLOGICAL PROCESSES,35(10),17. |
| MLA | You, Yuanyuan,et al."Impacts of El Nino-southern oscillation on global runoff: Characteristic signatures and potential mechanisms".HYDROLOGICAL PROCESSES 35.10(2021):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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