IOCAS-IR  > 海洋环流与波动重点实验室
Sea surface temperature cooling mode in the Pacific cold tongue
Zhang, Wenjun1,2,3; Li, Jianping3; Zhao, Xia3,4
2010-12-17
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
Volume115
SubtypeArticle
Abstract[1] Long-term variability in sea surface temperature (SST) in the equatorial Pacific and its relationship with global warming were investigated using three SST data sets (Hadley Center Global Sea Ice and Sea Surface Temperature, extended reconstruction sea surface temperature, and Kaplan), atmospheric fields from National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis, and subsurface sea temperature from the Simple Ocean Data Assimilation data set. A cooling mode in the equatorial Pacific cold tongue is evident in all three SST data sets for two periods: 1870-2007 and 1948-2007. This cooling, which is indicated by the second empirical orthogonal function mode, is characterized by cooling in the Pacific cold tongue and warming elsewhere in the tropical Pacific. Its principal component time series is highly correlated with global mean surface temperature combining air temperature and SST. In association with the SST cooling mode, atmospheric fields and subsurface sea temperature are coupled in the tropical Pacific during recent decades. Moreover, for the coupled models in the 20th century run (20C3M), obtained from the Intergovernmental Panel on Climate Change Fourth Assessment Report database, those with realistic features of El Nino-Southern Oscillation (ENSO) events can well show the cooling mode. However, the cooling mode is not shown in these coupled models in a preindustrial scenario with no forcing attributed to global warming. Results from observations and models suggest that the cooling mode is very likely caused by global warming. This conclusion is supported by a hypothesis that considers dynamic effects in the equatorial Pacific Ocean in response to global warming.
DOI10.1029/2010JC006501
Indexed BySCI
Language英语
WOS IDWOS:000285465600005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/32819
Collection海洋环流与波动重点实验室
海洋地质与环境重点实验室
Affiliation1.Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing 210044, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing 210044, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Lab Ocean Circulat & Waves, Qingdao, Peoples R China
Recommended Citation
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Zhang, Wenjun,Li, Jianping,Zhao, Xia. Sea surface temperature cooling mode in the Pacific cold tongue[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2010,115.
APA Zhang, Wenjun,Li, Jianping,&Zhao, Xia.(2010).Sea surface temperature cooling mode in the Pacific cold tongue.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,115.
MLA Zhang, Wenjun,et al."Sea surface temperature cooling mode in the Pacific cold tongue".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 115(2010).
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