DOI: 10.1007/s00382-012-1570-2
Scopus记录号: 2-s2.0-84884704593
论文题名: Are the teleconnections of Central Pacific and Eastern Pacific El Niño distinct in boreal wintertime?
作者: Garfinkel C.I. ; Hurwitz M.M. ; Waugh D.W. ; Butler A.H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 41, 期: 2017-07-08 起始页码: 1835
结束页码: 1852
语种: 英语
英文关键词: Central Pacific ENSO
; Stratospheric dynamics
; Teleconnections
英文摘要: A meteorological reanalysis dataset and experiments of the Goddard Earth Observing System Chemistry-Climate Model, Version 2 (GEOS V2 CCM) are used to study the boreal winter season teleconnections in the Pacific-North America region and in the stratosphere generated by Central Pacific and Eastern Pacific El Niño. In the reanalysis data, the sign of the North Pacific and stratospheric response to Central Pacific El Niño is sensitive to the composite size, the specific Central Pacific El Niño index used, and the month or seasonal average that is examined, highlighting the limitations of the short observational record. Long model integrations suggest that the response to the two types of El Niño are similar in both the extratropical troposphere and stratosphere. Namely, both Central Pacific and Eastern Pacific El Niño lead to a deepened North Pacific low and a weakened polar vortex, and the effects are stronger in late winter than in early winter. However, the long experiments do indicate some differences between the two types of El Niño events regarding the latitude of the North Pacific trough, the early winter polar stratospheric response, surface temperature and precipitation over North America, and globally averaged surface temperature. These differences are generally consistent with, though smaller than, those noted in previous studies. © 2012 Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54786
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth and Planetary Science, Johns Hopkins University, Baltimore, MD, 21209, United States; NASA Goddard Earth Sciences Technology and Research (GESTAR), Morgan State University, Baltimore, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Climate Prediction Center, NCEP, NOAA, Camp Springs, MD, United States
Recommended Citation:
Garfinkel C.I.,Hurwitz M.M.,Waugh D.W.,et al. Are the teleconnections of Central Pacific and Eastern Pacific El Niño distinct in boreal wintertime?[J]. Climate Dynamics,2013-01-01,41(2017-07-08)