Ехample 2-1 Rain falls as shown in the rainfall hyetograph (intensity Vs. time) in Fig. E2-1 (a). The o index for the Storm is 0.5 in./hr and is constant over5 hr. Plot the net rainfall on the hydrograph (flow vs. time) given in Fig. E2-1 (a). Determine the total volume of runoff and the watershed area. 1cfs 1.008 ac-in/hr 2.0 1.5 1.0 0.5 0 1 2. 4 5 Time (hr) 700 600 500 400 300 200 100 0 4 8 12 16 20 Time (hr) 24 Q (cfs) iT (in/hr)

Ехample 2-1 Rain falls as shown in the rainfall hyetograph (intensity Vs. time) in Fig. E2-1 (a). The o index for the Storm is 0.5 in./hr and is constant over5 hr. Plot the net rainfall on the hydrograph (flow vs. time) given in Fig. E2-1 (a). Determine the total volume of runoff and the watershed area. 1cfs 1.008 ac-in/hr 2.0 1.5 1.0 0.5 0 1 2. 4 5 Time (hr) 700 600 500 400 300 200 100 0 4 8 12 16 20 Time (hr) 24 Q (cfs) iT (in/hr)

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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Question 7 The total rainfall hyetograph of a storm, which took place over a basin is given below. Ordinates of Total Storm Hydrograph (TSH) obtained for the basin is given in the table below. The baseflow is constant and is 4 m³/s. If the depth of excess rainfall is 8 cm, determine: i (mm/hr) a) depth of direct runoff, b) depth of infiltrated water, c) -index, d) equation of surface runoff hydrograph in terms of UH₂ and lag times. e) UH2 ordinates of this basin, f) area of the basin. t TSH (hr) (m³/s) 0 4 24.68 뜨뜨뜨뜨뜨뜨 10 36 40 12 39 16 8 14 31 20 16 22 26 22 18 13 24 8 COL 4 5 20 Els 15 10 5 028 12 16 t (hr)
For the following rainfall rate, find the net runoff in cm, total rainfall and the value of W-index. Take Ø-index = 3.
R The following table show the precipitation in (mm/hr.) observed at the rain gages (A, B, and C) which shown in figure belo 1. Find the average precipitation each hr. over the catchment by Thiessen method . 2. Draw a graphical relation between the average precipitation each hr. and the time. - 3. Find the (& and W- index), if the runoff volume=104.4 cm.km® thr.) 1 2 3 a 5 Rain gage A 5 | [45 [ | & 8 3 7 [35 = [ 2 % a 9 |20 | 12 | & ain gage c i 10km rain gage - ain gge 106m
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Q1 The following table show the precipitation in (mm/hr.) observed at the rain gages (A, B, and C) which shown in figure below : 1. Find the average precipitation each hr. over the catchment by Thiessen method . 2. Draw a graphical relation between the average precipitation each hr. and the time. 3. Find the (® and W- index), If the runoff volume=108.4 cm.km’ tihr.) 1 2 3 4 s Rain gage A 5 10 25 12 a B 3 7 15 10 2 c a 9 20 12 a R gage 104m Rain gage 2= ain gage
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Show full solution.According to rainfall data collected by a laboratory during storm events, the precipitation level in inches (X) varies jointly with runoff in cubic feet per second (Y). The joint probability mass function (PMF) of both variables are given by the following Table: Y 1 2 3 10 0.05 0.15 0 20 0.1 0.25 0.25 30 0 0.1 0.1 a. Determine and plot the marginal PMF of runoff.b. Determine the correlation coefficient between X and Y.
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Subject: ( Hydrology and water Resources management )