In this study, empirical orthogonal function was applied to analyze rainfall variability in the
Nile basin based on various spatio-temporal scales. The co-occurrence of rainfall variability
and the variation in selected climate indices was analyzed based on various spatio-temporal
scales. From the highest to the lowest, the cumulative amount of variance explained by the
first two principal components (PCs) for any selected size of the spatial domain was
obtained for the annual, seasonal, and monthly rainfall series respectively. The variability in …