CE 4200 Chapter : Homework 2 2013 Fall
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The 10-year idf curve for baton rouge is given as follow: i. 0. 72 where i is the rainfall intensity in in/hr and t is the rainfall duration in minutes. Use the alternating-block method to calculate the maximum rainfall intensity (in/hr) for a 10- year 1-hour storm using 5 time intervals. The precipitation resulting from a 25-year 24-hour storm in baton rouge, la, is estimated to be. Using the nrcs 24-hyetograph to estimate the precipitation (mm) between 9 and 12 hours. (hint: use 3-hour interval. ) Estimate the probable maximum precipitation (inches) for 24-hour rainfall over an area of 26 km2 in shreveport, la. (hint: using figure 5. 17 in the lecture notes in the moodle. ) The annual-maximum 24-hour rainfall amounts in a city have a mean of 202 mm and a standard deviation of 65 mm. Estimate the probable maximum precipitation using the hershfiled method with k m.
