DOI: 10.1175/JCLI-D-17-0571.1
Scopus记录号: 2-s2.0-85052805046
论文题名: Different impacts of Northern, tropical, and Southern volcanic eruptions on the tropical pacific SST in the Last Millennium
作者: Zuo M. ; Man W. ; Zhou T. ; Guo Z.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 17 起始页码: 6729
结束页码: 6744
语种: 英语
英文关键词: Climate models
; Ensembles
; Paleoclimate
; Sea surface temperature
; Volcanoes
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Climate models
; Climatology
; Submarine geophysics
; Surface properties
; Surface waters
; Thermostats
; Tropics
; Volcanoes
; Earth system model
; Ensembles
; Intertropical convergence zone
; Paleoclimates
; Response mechanisms
; Sea surface temperature (SST)
; Southern oscillation
; Volcanic eruptions
; Oceanography
英文摘要: The impact of northern, tropical, and southern volcanic eruptions on the Pacific sea surface temperature (SST) and the different response mechanisms arising due to differences in the volcanic forcing structure are investigated using the Community Earth System Model Last Millennium Ensemble (CESM-LME). Analysis of the simulations indicates that the Pacific features a significant El Niño-like SST anomaly 5-10 months after northern and tropical eruptions, and with a weaker such tendency after southern eruptions, possibly reflective of the weaker magnitude of these eruptions. The Niño-3 index peaks with a lag of one and a half years after northern and tropical eruptions. Two years after all three types of volcanic eruptions, a La Niña-like SST anomaly pattern over the equatorial Pacific is observed, which seems to form an El Niño-Southern Oscillation (ENSO) cycle. The westerly wind anomaly over the western to central Pacific plays an essential role in favoring the development of an El Niño following all three types of eruptions. Thus, the key point of the question is to find the causes of the westerly wind enhancement. The shift of the intertropical convergence zone (ITCZ) can explain the El Niño-like response to northern eruptions, which is not applicable for tropical or southern eruptions. The ocean dynamical thermostat mechanism is the fundamental cause of the anomalous westerly wind for all three types of eruptions. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110704
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: State Key Lab. of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; Jiangsu Collaborative Innovation Center for Climate Change, Nanjing, China; Climate Change Research Center, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Zuo M.,Man W.,Zhou T.,et al. Different impacts of Northern, tropical, and Southern volcanic eruptions on the tropical pacific SST in the Last Millennium[J]. Journal of Climate,2018-01-01,31(17)