| THE IDENTIFICATION OF THE VOLCANIC SIGNAL IN GLOBAL SURFACE TEMPERATURE RECORDS |
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| 作者姓名： | Jia Pengqun P. M. Kelly |
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| 作者单位： | Chinese Academy of Meteorological Sciences Beijing 100081，Climatic Research Unit，University of East Anglia，Norwich NR4 7TJ，U.K. |
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| 摘 要： | In an attempt to clearly separate the volcanic signal,we use a mixture of principal componentanalysis(PCA)and superposed epoch analysis to identify volcanic signal in the global surface tem-perature field.In this way,the spatial and temporal pattern of volcanic signals is identified in theglobal surface temperature records.Our results show that the strongest ENSO and volcanic signalsare related with the first and the third principal components respectively.Both ENSO and volcanicsignals have responses in the second principal component.
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| 收稿时间： | 1995/4/28 0:00:00 |
| 修稿时间： | 1995/10/31 0:00:00 |
THE IDENTIFICATION OF THE VOLCANIC SIGNAL IN GLOBAL SURFACE TEMPERATURE RECORDS |
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| Jia Pengqun,P. M. Kelly.THE IDENTIFICATION OF THE VOLCANIC SIGNAL IN GLOBAL SURFACE TEMPERATURE RECORDS[J].Acta Meteorologica Sinica,1996,10(2):222-232. |
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| Authors: | Jia Pengqun and P M Kelly |
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| Institution: | Jia Pengqun Chinese Academy of Meteorological Sciences,Beijing 100081
P.M.Kelly Climatic Research Unit,University of East Anglia.Norwich NR4 7TJ,U.K. |
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| Abstract: | In an attempt to clearly separate the volcanic signal,we use a mixture of principal component analysis(PCA)and superposed epoch analysis to identify volcanic signal in the global surface tem- perature field.In this way,the spatial and temporal pattern of volcanic signals is identified in the global surface temperature records.Our results show that the strongest ENSO and volcanic signals are related with the first and the third principal components respectively.Both ENSO and volcanic signals have responses in the second principal component. |
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| Keywords: | volcanic signal global surface temperature ENSO signal |
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