DOI: 10.1002/joc.5401
论文题名: Coupled impacts of ENSO AMO and PDO on temperature and precipitation in the Alabama–Coosa–Tallapoosa and Apalachicola–Chattahoochee–Flint river basins
作者: Maleski J.J. ; Martinez C.J.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e717
结束页码: e728
语种: 英语
英文关键词: AMO
; ENSO
; local scale
; PDO
; seasonal climate
; teleconnection
Scopus关键词: Atmospheric pressure
; Forecasting
; Nickel
; Watersheds
; Atlantic multidecadal oscillations
; ENSO
; Local scale
; Ocean surface temperature
; Pacific decadal oscillation
; Precipitation anomalies
; Seasonal climate
; Teleconnections
; Climatology
; air temperature
; Atlantic Multidecadal Oscillation
; El Nino-Southern Oscillation
; Pacific Decadal Oscillation
; precipitation (climatology)
; sea surface
; seasonal variation
; surface temperature
; teleconnection
; Alabama
; Alabama River
; Apalachicola Basin
; Chattahoochee Basin
; Coosa River
; Flint Basin [Georgia]
; Florida [United States]
; Georgia
; Tallapoosa River
; United States
英文摘要: Large-scale patterns of ocean surface temperature can influence weather across the globe and understanding their interaction with the local climate can improve seasonal forecasting of local temperature and precipitation. Here we focus on the combined interactions of the El Niño-Southern Oscillation (ENSO), the Atlantic Multidecadal Oscillation (AMO) and the Pacific Decadal Oscillation (PDO) in the Alabama–Coosa–Tallapoosa (ACT) and Apalachicola–Chattahoochee–Flint (ACF) river basins of the southeastern United States. Nonparametric ranks-sum tests of individual and coupled impacts of these teleconnections on the annual study area climate (1895–2009) found significant impacts. A positive AMO phase was associated with decreased precipitation and increased mean temperature while the negative AMO phase was associated with increased precipitation and decreased temperature. While an El Niño event generally increases regional precipitation, El Niño during a positive AMO or PDO phase resulted in precipitation below the long-term average in our study area. Because of many instances of El Niño being shared between AMO and PDO phase, the effects of the PDO and AMO on El Niño could not be distinguished. La Niña was associated with negative precipitation and increased temperature. The effects of La Niña on the temperature and precipitation anomaly were significantly increased during positive AMO and PDO phases. The coupled impacts of the aforementioned teleconnections demonstrate the necessity of including the effects of the AMO and the PDO when using ENSO-based forecasts. The significant shifts on the effects of teleconnections on area climate from AMO negative phase to AMO positive phase cast doubt on seasonal prediction for the study area based on the recent history (i.e. the use of the period 1950–2000 to predict seasonal climate since 2000). © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116988
Appears in Collections: 气候减缓与适应
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作者单位: USDA-ARS Southeast Watershed Research Lab, Tifton, GA, United States; Department of Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, United States
Recommended Citation:
Maleski J.J.,Martinez C.J.. Coupled impacts of ENSO AMO and PDO on temperature and precipitation in the Alabama–Coosa–Tallapoosa and Apalachicola–Chattahoochee–Flint river basins[J]. International Journal of Climatology,2018-01-01,38