DOI: 10.1175/JCLI-D-13-00707.1
Scopus记录号: 2-s2.0-84907049544
论文题名: On Pacific subtropical cell variability over the second half of the twentieth century
作者: Farneti R. ; Dwivedi S. ; Kucharski F. ; Molteni F. ; Griffies S.M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 18 起始页码: 7102
结束页码: 7112
语种: 英语
Scopus关键词: Subtropical Cell
; Twentieth century
; atmospheric forcing
; climate change
; convergence
; Pacific Decadal Oscillation
; sea surface temperature
; temperature anomaly
; trend analysis
; twentieth century
; warming
; Pacific Ocean
; Pacific Ocean (Equatorial)
; Pacific Ocean (Tropical)
英文摘要: The evolution of the Pacific subtropical cells (STC) is presented for the period 1948-2007. Using oceanmodels of different resolutions forced with interannually varying atmospheric forcing datasets, the mechanisms responsible for the observed STC weakening and late recovery during the period of study are analyzed. As a result of the STC weakening (strengthening), warming (cooling) trends are found in the equatorial Pacific sea surface temperatures (SSTs).Model results agree well with observed estimates of STC transport, STC convergence, and equatorial SST anomalies. It is shown that subtropical atmospheric variability is the primary driver of the STC and equatorial SST low-frequency evolution and is responsible for both the slowdown during the second half of the twentieth century and the rebound at the end of the century. Subtropically forced STC variability is identified as amajor player in the generation of equatorial Pacific decadal SST anomalies, pacing tropical Pacific natural climate variability on interdecadal time scales, as observed in historical records. The natural mode of variability has implications for the evolution of equatorial SST in the coming decades under the concomitant effects of climate change. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51347
Appears in Collections: 气候变化事实与影响
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作者单位: Earth System Physics Section, Abdus Salam International Centre for Theoretical Physics, Trieste, Italy; Department of Atmospheric and Ocean Sciences, University of Allahabad, Allahabad, India; Center of Excellence for Climate Change Research, Department of Meteorology, King Abdulaziz University, Jeddah, Saudi Arabia; European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom; NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States
Recommended Citation:
Farneti R.,Dwivedi S.,Kucharski F.,et al. On Pacific subtropical cell variability over the second half of the twentieth century[J]. Journal of Climate,2014-01-01,27(18)