Trends in Extreme Precipitation Indices in Iran: 1951–2007

Figure 5

Yearly scores for single component explaining 80.9% of the variance in seven indices of extreme precipitation. Year component scores (standardized, mean of 0 and standard deviation of 1) for the single component explaining 80.9% of the variance in seven indices of extreme precipitation. The upward trend suggests that extreme precipitation events, irrespective of how they are defined, are increasing in Iran.