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Drought identification and characterization in Jordan

An analysis of droughts in Jordan was carried out both at local and regional scale is presented. Preliminary analyses of data for stationarity and randomness have been carried out through the application of three tests, namely Student’s t test, Kendall’s τ test, and Turning point test. The calendar year, water year, and trimester time scales have been considered and October was assumed as the beginning month of the water year. For each series four different thresholds were used, mean, median, mean minus standard deviation, and 35% quantile. The numbers of the drought periods, for the calendar series, are almost the same for all stations. Different periods and percentages are noticed with water year series with no consistency in results between the stations.