DOI: 10.1175/JCLI-D-13-00651.1
Scopus记录号: 2-s2.0-84905916718
论文题名: How much have variations in the meridional overturning circulation contributed to sea surface temperature trends since 1850? A study with the EC-Earth global climate model
作者: Schmith T. ; Yang S. ; Gleeson E. ; Semmler T.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 16 起始页码: 6343
结束页码: 6357
语种: 英语
Scopus关键词: Atmospheric radiation
; Atmospheric temperature
; Computer simulation
; Atlantic meridional overturning circulations
; Global climate model
; Historical simulation
; Meridional overturning circulations
; Multidecadal variations
; Overturning circulation
; Pre-industrial levels
; Sea surface temperature (SST)
; Oceanography
; climate change
; climate modeling
; climate variation
; decadal variation
; global climate
; industrialization
; meridional circulation
; overturn
; radiative forcing
; sea surface temperature
; trend analysis
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: The surface of the world's oceans has been warming since the beginning of industrialization. In addition to this, multidecadal sea surface temperature (SST) variations of internal origin exist. Evidence suggests that the North Atlantic Ocean exhibits the strongest multidecadal SST variations and that these variations are connected to the overturning circulation. This work investigates the extent to which these internal multidecadal variations have contributed to enhancing or diminishing the trend induced by the external radiative forcing, globally and in the North Atlantic. A model study is carried out wherein the analyses of a long control simulation with constant radiative forcing at preindustrial level and of an ensemble of simulations with historical forcing from 1850 until 2005 are combined. First, it is noted that global SST trends calculated from the different historical simulations are similar, while there is a large disagreement between the North Atlantic SST trends. Then the control simulation is analyzed, where a relationship between SST anomalies and anomalies in the Atlantic meridional overturning circulation (AMOC) for multidecadal and longer time scales is identified. This relationship enables the extraction of the AMOC-related SST variability from each individual member of the ensemble of historical simulations and then the calculation of the SST trends with the AMOC-related variability excluded. For the global SST trends this causes only a little difference while SST trends with AMOC-related variability excluded for the North Atlantic show closer agreement than with the AMOC-related variability included. From this it is concluded that AMOC variability has contributed significantly to North Atlantic SST trends since the mid nineteenth century. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51268
Appears in Collections: 气候变化事实与影响
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作者单位: Danish Meteorological Institute, Copenhagen, Denmark; Met Éireann, Glasnevin, Dublin, Ireland; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Helmholtz, Bremerhaven, Germany
Recommended Citation:
Schmith T.,Yang S.,Gleeson E.,et al. How much have variations in the meridional overturning circulation contributed to sea surface temperature trends since 1850? A study with the EC-Earth global climate model[J]. Journal of Climate,2014-01-01,27(16)