DOI: 10.1175/JCLI-D-16-0664.1
Scopus记录号: 2-s2.0-85014516381
论文题名: Observed basin-scale response of the North Atlantic meridional overturning circulation to wind stress forcing
作者: Elipot S. ; Frajka-Williams E. ; Hughes C.W. ; Olhede S. ; Lankhorst M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 6 起始页码: 2029
结束页码: 2054
语种: 英语
Scopus关键词: Atmospheric pressure
; Time series
; Wind stress
; Cross correlations
; Meridional overturning circulations
; Modal decomposition
; North Atlantic Ocean
; North Atlantic oscillations
; Ocean circulation
; Statistical techniques
; Woods hole oceanographic institutions
; Oceanography
; Ekman layer
; meridional circulation
; North Atlantic Oscillation
; overturn
; statistical analysis
; time series
; wind stress
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: The response of the North Atlantic meridional overturning circulation (MOC) to wind stress forcing is investigated from an observational standpoint, using four time series of overturning transports below and relative to 1000 m, overlapping by 3.6 yr. These time series are derived from four mooring arrays located on the western boundary of the North Atlantic: the RAPID Western Atlantic Variability Experiment (WAVE) array (42.5°N), the Woods Hole Oceanographic Institution Line W array (39°N), RAPID-MOC/MOCHA (26.5°N), and the Meridional Overturning Variability Experiment (MOVE) array (16°N). Using modal decompositions of the analytic cross-correlation between transports and wind stress, the basin-scale wind stress is shown to significantly drive the MOC coherently at four latitudes, on the time scales available for this study. The dominant mode of covariance is interpreted as rapid barotropic oceanic adjustments to wind stress forcing, eventually forming two counterrotating Ekman overturning cells centered on the tropics and subtropical gyre. A second mode of covariance appears related to patterns of wind stress and wind stress curl associated with the North Atlantic Oscillation, spinning anomalous horizontal circulations that likely interact with topography to form overturning cells. © 2017 American Meteorological Society. 资助项目: EPSRC, Engineering and Physical Sciences Research Council
; NERC, Natural Environment Research Council
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49770
Appears in Collections: 气候变化事实与影响
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作者单位: Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States; Ocean and Earth Science, University of Southampton, Southampton, United Kingdom; National Oceanography Centre, Liverpool, United Kingdom; Liverpool University, Liverpool, United Kingdom; University College London, London, United Kingdom; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States
Recommended Citation:
Elipot S.,Frajka-Williams E.,Hughes C.W.,et al. Observed basin-scale response of the North Atlantic meridional overturning circulation to wind stress forcing[J]. Journal of Climate,2017-01-01,30(6)