DOI: 10.1038/ngeo2399
论文题名: Strong influence of westerly wind bursts on El Niño diversity
作者: Chen D. ; Lian T. ; Fu C. ; Cane M.A. ; Tang Y. ; Murtugudde R. ; Song X. ; Wu Q. ; Zhou L.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2015
卷: 8, 期: 5 起始页码: 339
结束页码: 345
语种: 英语
Scopus关键词: annual variation
; canonical analysis
; El Nino-Southern Oscillation
; experimental study
; fuzzy mathematics
; La Nina
; numerical model
; paleoenvironment
; prediction
; sea surface temperature
; wind velocity
; Pacific Ocean
; Pacific Ocean (Equatorial)
; Pacific Ocean (Tropical)
英文摘要: Despite the tremendous progress in the theory, observation and prediction of El Niño over the past three decades, the classification of El Niño diversity and the genesis of such diversity are still debated. This uncertainty renders El Niño prediction a continuously challenging task, as manifested by the absence of the large warm event in 2014 that was expected by many. We propose a unified perspective on El Niño diversity as well as its causes, and support our view with a fuzzy clustering analysis and model experiments. Specifically, the interannual variability of sea surface temperatures in the tropical Pacific Ocean can generally be classified into three warm patterns and one cold pattern, which together constitute a canonical cycle of El Niño/La Niña and its different flavours. Although the genesis of the canonical cycle can be readily explained by classic theories, we suggest that the asymmetry, irregularity and extremes of El Niño result from westerly wind bursts, a type of state-dependent atmospheric perturbation in the equatorial Pacific. Westerly wind bursts strongly affect El Niño but not La Niña because of their unidirectional nature. We conclude that properly accounting for the interplay between the canonical cycle and westerly wind bursts may improve El Niño prediction. © 2015 Macmillan Publishers Limited. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106229
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, 36 Baochu North Road, Hangzhou, China; Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY, United States; Nanjing University, 22 Hankou Road, Nanjing, China; University of Maryland, 2227 CSS Building, College Park, MD, United States
Recommended Citation:
Chen D.,Lian T.,Fu C.,et al. Strong influence of westerly wind bursts on El Niño diversity[J]. Nature Geoscience,2015-01-01,8(5)