Table 1 Features computed for characterizing each quarterly hydroclimatic time series
S/n | Name | Brief description |
|---|---|---|
1 | Lag-1 autocorrelation | Lag-1 sample autocorrelation of the time series |
2 | Autocorrelation summary | Sum of the squared sample autocorrelation values of the time series at the lags equal from 1 to 10 seasons |
3 | Seasonal autocorrelation | Lag-4 sample autocorrelation of the time series |
4 | Temporal variation | Standard deviation of the first-order differenced standardized time series |
5 | Spectral entropy | Spectral entropy of the time series estimated by applying the method by Jung and Gibson (2006) |
6 | Hurst exponent | Hurst parameter of the fractional Gaussian noise process estimated by applying the method by Tyralis and Koutsoyiannis (2011) on the deseasonalized time series |
7 | Trend strength | Strength of trends in the time series estimated according to Kang et al. (2017) |
8 | Seasonality strength | Strength of seasonality in the time series estimated according to Kang et al. (2017) |