e data used in this study are as following:
• 2.2 Analyzing the observed monthly precipitation data
In this study, the 30-year average during 1972 to 2001 is used to represent the normal precipitation. The World Meteorological
Organization (WMO) used the average value of a meteorological element over any fixed period. A 30 year period was mandated by
the World Meteorological Organization [19].