DOI: 10.1175/JCLI-D-14-00301.1
Scopus记录号: 2-s2.0-84916219154
论文题名: An anatomy of the cooling of the North Atlantic ocean in the 1960s and 1970s
作者: Hodson D.L.R. ; Robson J.I. ; Sutton R.T.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 21 起始页码: 8229
结束页码: 8243
语种: 英语
Scopus关键词: Atmospheric temperature
; Atmospheric thermodynamics
; Ocean currents
; Sulfur dioxide
; Surface waters
; Atmosphere-ocean interactions
; Decadal variability
; Inter-decadal variability
; Multidecadal variability
; North Atlantic Ocean
; Oceanic variabilities
; Cooling
; air-sea interaction
; atmospheric circulation
; decadal variation
; gyre
; overturn
; sea surface temperature
; sulfur dioxide
; Arctic Ocean
; Atlantic Ocean
; Atlantic Ocean (North)
; Gulf Stream
; Norwegian Sea
英文摘要: In the 1960s and early 1970s, sea surface temperatures in the North Atlantic Ocean cooled rapidly. There is still considerable uncertainty about the causes of this event, although various mechanisms have been proposed. In this observational study, it is demonstrated that the cooling proceeded in several distinct stages. Cool anomalies initially appeared in the mid-1960s in the Nordic Seas and Gulf Stream extension, before spreading to cover most of the subpolar gyre. Subsequently, cool anomalies spread into the tropical North Atlantic before retreating, in the late 1970s, back to the subpolar gyre. There is strong evidence that changes in atmospheric circulation, linked to a southward shift of the Atlantic ITCZ, played an important role in the event, particularly in the period 1972-76. Theories for the cooling event must account for its distinctive space-time evolution. The authors' analysis suggests that the most likely drivers were 1) the "Great Salinity Anomaly" of the late 1960s; 2) an earlier warming of the subpolar North Atlantic, which may have led to a slowdown in the Atlantic meridional overturning circulation; and 3) an increase in anthropogenic sulfur dioxide emissions. Determining the relative importance of these factors is a key area for future work. © 2014 American Meteorological Society. 资助项目: NOAA, National Oceanic and Atmospheric Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51014
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Meteorology, University of Reading, Reading, United Kingdom
Recommended Citation:
Hodson D.L.R.,Robson J.I.,Sutton R.T.. An anatomy of the cooling of the North Atlantic ocean in the 1960s and 1970s[J]. Journal of Climate,2014-01-01,27(21)