1. The mass curve of rainfall in a storm of total duration 90 minutes is given below.0 3090Time (minutes)Cumulative601.8 5.7 13.9 18.3120 150 180 210 240 27025.6 41.2 55.1061.377Rainfall (mm).a.) Draw the hyetograph of the storm at 10 minutes time step.b.) Plot the maximum intensity-duration curve for this storm.c.) Plot the maximum depth-duration curve for the storm.(50 %)

Answered: Image /qna-images/answer/21d4cad6-1d02-429a-b355-66c6b187addc.jpg

1. The mass curve of rainfall in a storm of total duration 90 minutes is given below. Time (minutes) 0 30 60 90 120 150 180 210 240 270 61.3 Cumulative 0 1.8 5.7 13.9 18.3 25.6 41.2 55.1 77 Rainfall (mm). a.) Draw the hyetograph of the storm at 10 minutes time step. b.) Plot the maximum intensity-duration curve for this storm. c.) Plot the maximum depth-duration curve for the storm.(50 %)

1. The mass curve of rainfall in a storm of total duration 90 minutes is given below. Time (minutes) 0 30 60 90 120 150 180 210 240 270 61.3 Cumulative 0 1.8 5.7 13.9 18.3 25.6 41.2 55.1 77 Rainfall (mm). a.) Draw the hyetograph of the storm at 10 minutes time step. b.) Plot the maximum intensity-duration curve for this storm. c.) Plot the maximum depth-duration curve for the storm.(50 %)

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

CE 141-2 HW2-A The mass curve of rainfall in a storm of total duration 90 minutes is given below. Time (minutes) 0 30 60 90 120 150 180 210 240 270 Cumulative 0 1.8 5.7 13.9 18.3 25.6 41.2 55.1 61.3 77 Rainfall(mm). Draw the hyetograph of the storm at 10 minutes time step. Plot the maximum intensity-duration curve for this storm. Plot the maximum depth-duration curve for the storm.
According to the IDF curve given below, predict the precipitation intensity for a rainfall event with a return period(s) of 50 year and 100 year in the duration(s) of 80 minutes and 90 minutes, respectively.
TIME (minutes) CUMULATIVE (mm) PROBLEM 4 10 6.2 In a storm of 90 minutes 20 8.5 duration, the incremental rainfall 30 14.5 at various time intervals is given 40 21.7 below. Draw the hyetograph of 50 27.9 the storm: 60 33.0 70 35.1 80 36.2 90 37.0
2.15 The mass curve of rainfall in a storm of total duration 90 minutes is given below. (a) Draw the hyetograph of the storm at 10 minutes time step. (b) Plot the maximum intensity-duration curve for this storm. (c) Plot the maximum depth-duration curve for the storm. Time (Minutes) |80 10 20 30 40 50 60 70 90 Cumulative rainfall 0 |(mm) 2.1 6.3 14.5 21.7 27.9 33.0 35.1 36.2 37.0
A stormwith 10 cm of precipitation produceda directrunoff of 6.02 cm. The duration of the rainfall was 16 hours and its time distribution is given below. Estimate the 0-index of the storm. Time from start (h) Cumulative rainfall (cm) 0 2 4 8 10 12 14 16 0.4 1.3 2.8 5.1 5.9 9.25 9.5 10.0 A) 0.261 B) 0.249 C) 0.257 D) 0.283 E) None of the above
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 table below lists rainfall data recorded at aUSGS gage for the storm of September 1, 1999. Thebasin area is 2050 acres. Using these data, developa mass diagram (in vs. t) and a rainfall hyetograph(in./hr vs. t) in 15-min intervals and determine thetime period with the highest intensity rainfall.
EXAMPLE 2.8 The ordinates of rainfall mass curve of a storm (in mm) that started at 9.00 AM recorded at 30 minutes interval are 0, 10, 18, 29.5, 44.5, 51, 67, 89.5, 99.5, 107, 119, 122 and 122. Plot the hyetograph for a uniform interval of 30 minutes.
Rainfall distribution during a Wight, Table rain gange stration is shown in with stogrip at a 1 Table 1: Rainfall Distribution Time (min) 5 10 15 20 25 30 35 40 Amount (mm) 1,5 5,6 13,0 5,8 5,1 9,2 4,8 1,3 The total rainfall amount the storm The duration of Peak intensities for 5min, 10 min, 30 min and Average intensity 24 18 19 20 21 22 23 14 13 12 g 60 11 80 90 ATENEO 110 120
1. Find area precipitation by isohyetal method for a certain catchment area given the following data Isohyets, cm P 6.8 5 4 PS 3 12/2 P1.5 DEPARTMENT OF CIVIL ENGINEERING CCB 433 - Fluid Mechanics for Civil Engineers Tutorial 1 August 2022 0 Time, min Rainfall, em + 602 Area enclosed within catchment boundary, km 2. A catchment has six rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station 10 0 A F Rainfall, mm 86.3 102.7 For a 10% error in the estimation of mean rainfall, calculate the optimum number of stations in the catchment 90 3.18 6816 3. From the precipitation data given, estimate cumulative rainfall and rainfall intensity. Time, min 40 60 50 0.32 0.37 0.43 Rainfall, cm - B C D 108.9 154.2 78.3 10 0.18 20 97 213 410 602 633 100 1.65 +00 2+15 2 20 0.21 1975 30 0.26 120 130 0.26 110 0.81 0.52 6+5 2 P = A₁ Athal-1975 P₂ • (Pi+ P² ] + An [Po+Pr+ A₂ Atotal + (33 E 93.1 +97 140 0.42 2 150 0.36 5+4 70 80 0.64 1.14 160 170 0.28 0.19 + 213 413…
55. In a storm of 210 minutes duration, the incremental rainfall at various time interval is given below. Time since start of the storm (m) Incremental rainfall in the time interval |(cm) What is the average intensity of the storm over the duration of the storm? 30 60 90 120 150 180 210 0.75 2.25 6.00 4.50 2.50 1.50 0.75
23: A square area of 100 km² is gauged by five rainfall gauges one at the center of the area and the others at an equal distance on the boundary of the area. The data record are: Station A B D Rainfall (cm) 15 12.5 13.8 14.5 Use Two methods to estimate average rainfalls? E 13 D OF R