Answered: Plot the maximum intensity-duration of…

Engineering

Civil Engineering

Plot the maximum intensity-duration of the storm.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

9.16. The IDF function for 10- yr storms in Santa Fe, New Mexico, is given by i = 818 (t + 8.54)0.76 mm/h where i is the average intensi- ty in mm/h and t is the dura- tion in minutes. Assuming that the maximum rainfall intensity occurs at 44% of the rainfall duration, estimate the triangu- lar hyetograph for a 50-min storm. 9.17. Use the alternating-block method and the IDF function given in Problem 9.16 to cal- culate the hyetograph for a 10- yr 1-h storm using 11 time in- tervals.
A gage on a small (0.75-acre) urban parking lot recorded the following incremental rainfall data. Time (hr) 0 1 Rainfall (cm) 0 5 0.5 4.7 1.5 10 2 12 2.5 3 3.5 10 4.5 3 4 2.3 4.5 0 a. Determine the total storm rainfall depth (in inches). Be careful with units. b. If all of the rainfall occurs as runoff (no losses) and the time base of a triangular hydrograph is 3 hours, find the peak flow of the hydrograph in cfs. Be careful with units.
Three gauging stations A, B, and C are located inside a rectangular lot area. Each gauging station is located at the center of the circular area covered by each station as illustrated below. The radius of the circular area covered by Gauging Station A and B is 96m, and C is 12m. If the average rainfall depth in the rectangular lot area is 88mm, calculate the volume of precipitation (m3) in the area not covered by the three gauging stations. Show complete Solution.
2 Using the SCS method, derive the synthetic 24-hour storm distribution for a precipitation event with the average intensity of 0.6mm/hr in the city of Charleston.
Calculate the total precipitation based on the hyetograph given below: (Please show your math-work)
2) Construct a rainfall hyetograph (rainfall intensity, in mm/hr, versus time, in minutes) if the total rain in Question 1 above has the following temporal distribution (Table 1). Sketch the hyetograph. Table 1: Temporal Distribution Time (min) 0-5 5-10 10-15 15-20 20-25 25-30 % rainfall per period 12.5 12.5 38 13.5 13.5 10
Rainfall data of a certain locality is given below. Compute the maximum depth and Maximum intensity with respect to the given time. Time July 3, 1830 July 3, 1830 July 3, 1830 July 3, 1830 July 3, 1830 11:30am 9:30am 10:00am 10:30am 11:00am Recorded P (mm) 0 6 12 3 15 July 3, 1830 12:00nn 7 July 3, 1830 July 3, 1830 July 3, 1830 July 3, 1830 12:30pm 1:30pm 2:00pm 1:00pm 6 3 1 1
A rainfall hyetograph shows a) the total volume of rainfall for a storm event; b) the cumulative volume of rainfall with time over the duration of a storm event; c) the variation of rainfall event over a watershed; d) the intensity of volume of rainfall as a function of time; e) none of the above
The precipitation heights recorded with a printed precipitation scale during successive time intervals during a rainstorm are given in the table below. Accordingly, plot the duration-intensity (connection) graph of this precipitation event.
Question 2 The normal annual rainfall at rainfall gauges from A to F are 260, 362, 390, 282, 345, and 232 mm respectively. In the year 2016, Station B was inoperative and remaining gauges recorded respectively 14, 28, 44, 28, and 29 mm. Calculate rainfall at station B.
Q1) During a storm , the hourly rainfall data was as follows: 0 1 2 3 4 5 6 7 8 9 Time (hrs) Rainfall (mm/hr) | 0 | 20 | 25 45 30 10 10 | 15 10 0 1) plot the hyetograph 2) calculate and plot Mass Curve Ordinate.
Problem 2. A storm had 3 successive 6-hr intervals of rainfall magnitude of 3.0, 5.0 and 4.0 cm, respectively. Time from the beginning 0 3 6 9 12 18 24 30 36 48 54 60 66 42 of the storm (hr) 6-hr UH ordinates (cumecs) 0 150 250 450 600 800 700 600 450 320 200 100 50 0 a. Plot the resulting DRH due to 3 rainfall events, assuming a phi-index of 0.20 cm/hr. • Recall that the phi-index represents the rate of infiltration. • The hydrograph plots RUNOFF rates, where runoff = precipitation - losses. Note that the rainfall magnitude is reported as total rainfall depth in 6 hrs, so convert infiltration as a total for every 6 hr period. b. Assuming a baseflow of 30 m3/s, what are the ordinates of the storm hydrograph?