DOI: 10.1002/jgrd.50551
论文题名: A spatiotemporal analysis of U.S. station temperature trends over the last century
作者: Capparelli V. ; Franzke C. ; Vecchio A. ; Freeman M.P. ; Watkins N.W. ; Carbone V.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 14 起始页码: 7427
结束页码: 7434
语种: 英语
英文关键词: atmospheric processes
; global change
; nonlinear geophysics
Scopus关键词: Climate change
; Complex networks
; Random processes
; Atmospheric process
; Empirical mode decomposition method
; Geographic relationships
; Global change
; Historical climatologies
; Spatiotemporal analysis
; Spatiotemporal evolution
; Statistical significance
; Nonlinear analysis
; climate variation
; climatology
; global warming
; nonlinearity
; numerical model
; spatiotemporal analysis
; temperature effect
; United States
英文摘要: This study presents a nonlinear spatiotemporal analysis of 1167 station temperature records from the United States Historical Climatology Network covering the period from 1898 through 2008. We use the empirical mode decomposition method to extract the generally nonlinear trends of each station. The statistical significance of each trend is assessed against three null models of the background climate variability, represented by stochastic processes of increasing temporal correlation length. We find strong evidence that more than 50% of all stations experienced a significant trend over the last century with respect to all three null models. A spatiotemporal analysis reveals a significant cooling trend in the South-East and significant warming trends in the rest of the contiguous U.S. It also shows that the warming trend appears to have migrated equatorward. This shows the complex spatiotemporal evolution of climate change at local scales. Key Points Nonlinear spatio-temporal analysis of temperature trends The statistical significance of each trend is assessed against three nullmodels The warming trend appears to have geographic relationships ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63526
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Dipartimento di Fisica, Universitá della Calabria, Ponte P. Bucci, cubo 33 B, Rende, Cosenza IT-87100, Italy; British Antarctic Survey, Cambridge, United Kingdom; Centre for the Analysis of Time Series, London School of Economics and Political Science, London, United Kingdom; Centre for Fusion, Space and Astrophysics, University of Warwick, Coventry, United Kingdom; IPCF/CNR Universitá della Calabria, Cosenza, Italy
Recommended Citation:
Capparelli V.,Franzke C.,Vecchio A.,et al. A spatiotemporal analysis of U.S. station temperature trends over the last century[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(14)