On the crosscorrelation between drought indices and solar activity |
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| Authors: | G. Padmanabhan A. Ramachandra Rao |
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| Affiliation: | (1) Department of Civil Engineering, North Dakota Sate University, Fargo, North Dakota, USA;(2) School of Civil Engineering, Purdue University, West Lafayette, Indiana, USA |
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| Abstract: | ![]()
Summary Crosscorrelation structure between solar activity and drought indices is investigated by analyzing the cross correlation of the residual time series of solar activity and drought indices. Double Sunspot Cycle, Zürich Sunspot number, Palmer's Drought Index and Drought Area Index data are used in the study. White residual series derived from the observed data series by using valid time series models are used for the crosscorrelation analysis. Weak correlations between solar activity and drought area indices are inferred. The lags of significant correlation appear to vary for the different time series used in the study.With 3 Figures |
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