globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-014-2305-3
Scopus记录号: 2-s2.0-84943014466
论文题名:
On the Atlantic–Pacific Niños connection: a multidecadal modulated mode
作者: Martín-Rey M.; Rodríguez-Fonseca B.; Polo I.; Kucharski F.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期:11
起始页码: 3163
结束页码: 3178
语种: 英语
英文关键词: Atlantic ; Atlantic Multidecadal Oscillation ; ENSO ; Pacific ; Prediction ; Sea surface temperature ; Tropical variability
英文摘要: Atlantic and Pacific El Niño are the leading tropical oceanic variability phenomena at interannual timescales. Recent studies have demonstrated how the Atlantic Niño is able to influence on the dynamical processes triggering the development of the Pacific La Niña and vice versa. However, the stationarity of this interbasin connection is still controversial. Here we show for the first time that the Atlantic–Pacific Niños connection takes place at particular decades, coinciding with negative phases of the Atlantic Multidecadal Oscillation (AMO). During these decades, the Atlantic–Pacific connection appears as the leading coupled covariability mode between Tropical Atlantic and Pacific interannual variability. The mode is defined by a predictor field, the summer Atlantic Sea Surface Temperature (SST), and a set of predictand fields which represent a chain of atmospheric and oceanic mechanisms to generate the Pacific El Niño phenomenon: alteration of the Walker circulation, surface winds in western Pacific, oceanic Kelvin wave propagating eastward and impacting on the eastern thermocline and changes in the Pacific SST by internal Bjerknes feedback. We suggest that the multidecadal component of the Atlantic acts as a switch for El Niño prediction during certain decades, putting forward the AMO as the modulator, acting through changes in the equatorial Atlantic convection and the equatorial Pacific SST variability. These results could have a major relevance for the decadal prediction systems. © 2014, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54557
Appears in Collections:过去全球变化的重建

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作者单位: Instituto de Geociencias, IGEO, Centro Mixto UCM-CSIC, Madrid, Spain; Departamento de Física de la Tierra, Astronomía y Astrofísica I (Geofísica y Meteorología), 4 planta, UCM, Pza de las Ciencias, Av/Complutense, Madrid, Spain; NCAS-Climate, Department of Meteorology, University of Reading, Earley Gate, PO Box 243, Reading, United Kingdom; The Abdus Salam International Centre for Theoretical Physics, ICTP, Trieste, Italy; Department of Meteorology, Center of Excellence for Climate Change Research, King Abdulaziz University, Jeddah, Saudi Arabia

Recommended Citation:
Martín-Rey M.,Rodríguez-Fonseca B.,Polo I.,et al. On the Atlantic–Pacific Niños connection: a multidecadal modulated mode[J]. Climate Dynamics,2014-01-01,43(11)
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