DOI: 10.1002/2016GL069628
论文题名: Century-scale causal relationships between global dry/wet conditions and the state of the Pacific and Atlantic Oceans
作者: Sun Q. ; Miao C. ; AghaKouchak A. ; Duan Q.
刊名: Geophysical Research Letters
ISSN: 0094-9595
EISSN: 1944-9326
出版年: 2016
卷: 43, 期: 12 起始页码: 6528
结束页码: 6537
语种: 英语
英文关键词: drought
; El Niño–Southern Oscillation
; North Atlantic Oscillation
; Pacific Decadal Oscillation
Scopus关键词: Atmospheric pressure
; Drought
; Flood control
; Floods
; Nickel
; Oceanography
; Causal relationships
; Climate variability
; Global land surface
; Granger causality test
; North Atlantic oscillations
; Pacific decadal oscillation
; Southern oscillation
; Standardized precipitation index
; Climatology
; Atlantic Multidecadal Oscillation
; climate variation
; drought
; dry season
; El Nino-Southern Oscillation
; evapotranspiration
; flood forecasting
; Pacific Decadal Oscillation
; precipitation (climatology)
; wet season
; Antarctica
; Atlantic Ocean
; Atlantic Ocean (North)
; North Africa
; North America
; Pacific Ocean
; South America
; Southern Europe
英文摘要: The Granger causality test is used to examine the effects of the El Niño–Southern Oscillation (ENSO), the Pacific Decadal Oscillation (PDO), and the North Atlantic Oscillation (NAO) on global dry/wet conditions. The results show robust relationships between dry/wet conditions and the ocean states, as assessed through a multi-index (standardized precipitation evapotranspiration index and standardized precipitation index) and multiscale (3 months and 12 months) evaluation. The influence of ENSO events is widespread, dominating about 38% of the global land surface (excluding Antarctica). Southern and western North America, northern South America, and eastern Russia are influenced by the PDO. The NAO influences not only dry/wet conditions in Europe but also dry/wet conditions in northern Africa. Similarly, climate variability in southern Europe and northern Africa may be due to the concurrence of the ENSO and the NAO. Knowledge of the spatial influence of ocean states on global dry/wet conditions is valuable for improving drought and flood forecasting. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979047275&doi=10.1002%2f2016GL069628&partnerID=40&md5=33215149f889f8a23cf1379a39671872
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10558
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
Recommended Citation:
Sun Q.,Miao C.,AghaKouchak A.,et al. Century-scale causal relationships between global dry/wet conditions and the state of the Pacific and Atlantic Oceans[J]. Geophysical Research Letters,2016-01-01,43(12).