CE 4200 Chapter : Homework 1 Solution 2013 Fall
Document Summary
Homework #1 solution (1) storage at the beginning of august (or end of july): 20) (2) storage at the end of august. Aug (3) storage at the middle of august (54 56) / 2 55. For each time interval there are n = 50 ranked rainfall amounts of annual maxima. The relationship between the rank, m, and the return period, t, is given by weibull formula: The return period can therefore be used in lieu of the rankings, and the given data can be put in the form: The rainfall increments with a return period, t=40 years can be linearly interpolated between the rainfall increments corresponding to t = 51 years and t = 25. 5 years to yield: The average intensities for each duration are obtained by dividing the rainfall amounts by the corresponding duration to yield: These points define the idf curve for a return period of 40 years.
