globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-12-00316.1
Scopus记录号: 2-s2.0-84874834322
论文题名:
Pacific decadal variability: Paced by Rossby basin modes?
作者: Weijer W.; Muñoz E.; Schneider N.; Primeau F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期:4
起始页码: 1445
结束页码: 1456
语种: 英语
Scopus关键词: Climate variability ; Community climate system model ; Control integration ; Decadal climate variability ; Oscillation patterns ; Pacific decadal oscillation ; Pacific decadal variabilities ; Sea surface temperature (SST) ; Atmospheric temperature ; Climatology ; Climate models ; air-sea interaction ; climate modeling ; climate variation ; decadal variation ; Pacific Decadal Oscillation ; sea surface temperature ; statistical analysis ; Pacific Ocean ; Pacific Ocean (North)
英文摘要: A systematic study is presented of decadal climate variability in the North Pacific. In particular, the hypothesis is addressed that oceanic Rossby basin modes are responsible for enhanced energy at decadal and bidecadal time scales. To this end, a series of statistical analyses are performed on a 500-yr control integration of the Community Climate System Model, version 3 (CCSM3). In particular, a principal oscillation pattern (POP) analysis is performed to identify modal behavior in the subsurface pressure field. It is found that the dominant energy of sea surface temperature (SST) variability at 25 yr (the model equivalent of the Pacific decadal oscillation) cannot be explained by the resonant excitation of an oceanic basin mode. However, significant energy in the subsurface pressure field at time scales of 17 and 10 yr appears to be related to internal ocean oscillations. However, these oscillations lack the characteristics of the classical basin modes, and must either be deformed beyond recognition by the background circulation and inhomogeneous stratification or have another dynamical origin altogether. The 17-yr oscillation projects onto the Pacific decadal oscillation and, if present in the real ocean, has the potential to enhance the predictability of low-frequency climate variability in the North Pacific. © 2013 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52041
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作者单位: Los Alamos National Laboratory, Los Alamos, NM, United States; New Mexico Consortium, Los Alamos, NM, United States; University of Hawaii at Manoa, Honolulu, HI, United States; University of California, Irvine, CA, United States

Recommended Citation:
Weijer W.,Muñoz E.,Schneider N.,et al. Pacific decadal variability: Paced by Rossby basin modes?[J]. Journal of Climate,2013-01-01,26(4)
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