DOI: 10.1175/JCLI-D-13-00448.1
Scopus记录号: 2-s2.0-84890131958
论文题名: Origins of tropical pacific decadal variability: Role of stochastic atmospheric forcing from the South Pacific
作者: Okumura Y.M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 24 起始页码: 9791
结束页码: 9796
语种: 英语
Scopus关键词: Air sea interactions
; Asymmetric natures
; Atmospheric forcing
; Atmospheric variability
; Decadal variability
; Pacific decadal oscillation
; Pacific decadal variabilities
; Sea surface temperature (SST)
; Climate models
; Climatology
; Stochastic models
; Stochastic systems
; Tropics
; Oceanography
; air-sea interaction
; atmospheric forcing
; atmospheric modeling
; climate modeling
; decadal variation
; equatorial dynamics
; Rossby wave
; sea surface temperature
; stochasticity
; wind
; Pacific Ocean
; Pacific Ocean (North)
; Pacific Ocean (South)
; Pacific Ocean (Tropical)
英文摘要: Based on the analysis of multicentury-millennium integrations of an atmospheric model coupled to the ocean with varying degrees, it is argued that ENSO-like decadal variability is primarily driven by stochastic atmospheric forcing. In particular, the leading mode of internal atmospheric variability over the South Pacific, which projects onto the Pacific-South American (PSA) pattern, plays an important role in modulating the trade winds and sea surface temperature (SST) in the southeast tropical Pacific. Subsequent ocean- atmosphere interactions organize a basinwide SST anomaly pattern in the tropics, which in turn forces atmosphericRossby waves into the extratropics, reinforcing the PSApattern and inducing coherent decadal changes in the North Pacific. In the absence of ocean dynamics, equatorial SST variability is reduced and the North Pacific exhibits decadal variability independent of the tropical-South Pacific. The strong tropical-South Pacific linkage may be attributed to the equatorially asymmetric nature of tropical Pacific climate. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51512
Appears in Collections: 气候变化事实与影响
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作者单位: Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States
Recommended Citation:
Okumura Y.M.. Origins of tropical pacific decadal variability: Role of stochastic atmospheric forcing from the South Pacific[J]. Journal of Climate,2013-01-01,26(24)