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

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Concept explainers

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.

Question

Following are the data of a storm as recorded in a self-recording rain gauge at a station: The hyetograph of the storm are already plotted.

a.) Plot the maximum intensity-duration of the storm.

Time from the
10
20
beginning of storm
(minutes)
Cumulative rainfall
19 41
(mm)

Time (min)
10
20
Intensity Cmm/h)
14
132
Plotted
Hyetograph

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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
please answer it asap. thank you.
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
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The isolation map of a 10-hour downpour in a basin is given in the figure on the right.a) Find the mean areal precipitation height for this downpour.b) Calculate and plot the 10-hour precipitation height-area curve.
Hydrology Problem: Develop a synthetic rainfall hyetograph for a 6 hr, 10-year rainfall event for Houston, TX using a time step of 30 min. Arrange to be an early peaking event.
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?
The following rainfall data in 5-minute intervals were recorded for a storm: Time (min): Depth (in) 5 :0.07 10 :0.20 15: 0.25 20: 0.22 25 :0.21 30: 0.16 35 :0.12 40 :0.03 a) plot the rainfall hyetograph as intensity (in/hr) versus time (min) b) calculate the maximum depth (in.) and intensity (in/hr) recorded in 5, 10, 20 and 30 minutes