application of linear moment methods for hershfild method (case study halilrud watershed)

nowadays, designing hydraulic structures for flood damage mitigation has a significant importance in water engineering. one of the necessary parameters for the design of flood control measures is the probable maximum 24-hour precipitation in a 1000-year return period. this research was done using jiroft halilrud watershed data to evaluate hershfild methods. firstly, the maximum annual precipitation data series were used to do a frequency analysis using linear moments method to determine the maximum precipitation in 1000-year return period. then this parameter was determined using the hershfild method. the results showed a good agreement between the two methods according to correlation coefficient (0.87). the results of this research can be used for the monitoring system of the region