DOI: 10.1002/2016GL069067
论文题名: Remote influence of Interdecadal Pacific Oscillation on the South Atlantic meridional overturning circulation variability
作者: Lopez H. ; Dong S. ; Lee S.-K. ; Campos E.
刊名: Geophysical Research Letters
ISSN: 0094-8821
EISSN: 1944-8552
出版年: 2016
卷: 43, 期: 15 起始页码: 8250
结束页码: 8258
语种: 英语
英文关键词: Interdecadal Pacific Oscillation
; meridional overturning circulation
; Rossby waves
; sea surface height
; teleconnections
Scopus关键词: Climate models
; Mechanical waves
; Oceanography
; Surface waters
; Inter-decadal pacific oscillations
; Meridional overturning circulations
; Rossby wave
; Sea surface height
; Teleconnections
; Ocean currents
; atmosphere-ocean coupling
; meridional circulation
; overturn
; Pacific Decadal Oscillation
; Rossby wave
; sea level pressure
; sea surface height
; teleconnection
; wind velocity
; Atlantic Ocean
; Atlantic Ocean (South)
英文摘要: This study explores potential factors that may influence decadal variability of the South Atlantic meridional overturning circulation (SAMOC) by using observational data as well as surface-forced ocean model runs and a fully coupled climate model run. Here we show that SAMOC is strongly correlated with the leading mode of sea surface height (SSH) variability in the South Atlantic Ocean, which displays a meridional dipole between north and south of 20°S. A significant portion (~45%) of the South Atlantic SSH dipole variability is remotely modulated by the Interdecadal Pacific Oscillation (IPO). Further analysis shows that anomalous tropical Pacific convection associated with the IPO forces robust stationary Rossby wave patterns, modulating the wind stress curl over the South Atlantic Ocean. A positive (negative) phase IPO increases (decreases) the westerlies over the South Atlantic, which increases (decreases) the strength of the subtropical gyre in the South Atlantic and thus the SAMOC. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981347237&doi=10.1002%2f2016GL069067&partnerID=40&md5=a5e56dbaf31069cea863ff99a034fde1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9784
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Coral Gables, FL, United States
Recommended Citation:
Lopez H.,Dong S.,Lee S.-K.,et al. Remote influence of Interdecadal Pacific Oscillation on the South Atlantic meridional overturning circulation variability[J]. Geophysical Research Letters,2016-01-01,43(15).