8. In catchment, the following 1-hr UH due to 1mm effective rainfall is known: Time (hr) QUH(m3/s) 0 0 2 2 1 3 FH) = Pc + (B-fo) 3 1 4 3 A- Estimate the direct runoff if the effective rain fall during 1-hr is 5mm. B- Estimate the direct runoff is the effective rainfall is 5mm during the first hour and 10mm during the second.

8. In catchment, the following 1-hr UH due to 1mm effective rainfall is known: Time (hr) QUH(m3/s) 0 0 2 2 1 3 FH) = Pc + (B-fo) 3 1 4 3 A- Estimate the direct runoff if the effective rain fall during 1-hr is 5mm. B- Estimate the direct runoff is the effective rainfall is 5mm during the first hour and 10mm during the second.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: For a two hour rainfall, the hyetograph superimposed with infiltration curve is as shown below. The…

A: For a two hour rainfall,The hyetograph superimposed with infiltration curve is as shownbelowto find…

Q: Calculate the runoff from a watershed of 0.01×R ha. The following data are available: Depth of…

A: To calculate runoff

Q: In Legaspi City. Albay with 50-year return period. The watershed area is 10 km2 and the sheet flow…

A: Runoff : Runoff happens while there's greater water than the land can absorb. The extra liquid flows…

Q: 1. (: :) Calculate the peak runoff, cfs, for a 10-year storm using the rational method located in…

A: NOTE: Assuming the necessary data that has not been provide in the question Given, Location-…

Q: A 100-acre watershed that is 80% Industrial and 20% newly graded areas (no vegetation). The…

Q: For the given rainfall data, compute the runoff volume if the index is 0.9 in/hr. The watershed area…

A: φ index = 0.9 in/hrWatershed area = 0.785 mi² T(hr) rainfall intensity (in/hr) 0- 3…

Q: Total observed runoff volume during a 6 hour storm with a uniform intensity of 4cm/ hr is 3 30 x…

A: Runoff volume =30 x 106 m3 6 hour storm, Intensity = 4 cm/hr

Q: For a catchment in UP, India, the mean monthly temperatures are given. Estimate the runoff and…

A: Estimation of runoff is done by following formula as per khosla method: Rm=Pm-Lm Pm = monthly…

Q: B) The rates of rainfall for the successive 30 min period of a 3-hour stor are 1.6, 3.6, 5.0, 2.8,…

A: Given data-30 min rainfall period,Rate of rainfall = 1.6, 3.6, 5.0, 2.8, 2.2 & 1.0…

Q: The 4-hr rainfall for successive 30 minutes intervals is as shown below. If the surface runoff is 6…

Q: 2) Compute the peak runoff, qp, using the NRCS Methbd for a 100 year storm for a drainage basin…

A: Curve Number= 68 Time of concentration= 2.35 hr

Q: Determine the 10-year period peak runoff for 80 hectare watershed having a runoff coefficient of…

A: The peak flow of runoff is given by: q=0.0028×C×ir×A Where, q = peak flow C = the runoff coefficient…

Q: The hydrograph tabulated below is for a river that drains an area of 810 mi?. Plot nydrograph,…

A: Hydrograph is the graph between discharge (y axis) and to duration (x axis) In above problem ,…

Q: Consider a catchment that has a runoff coefficient of 0.82, an average slope of 0.02, a Manning's n…

Q: Q2- A cumulative runoff depth 33mm , determine Ø - index and estimate volume of infiltration in…

Q: A rain depth of 10 inches falls on a developed area of Charleston (CN = 90). Estimate the runoff.…

Concept explainers

Probability, risk and uncertainty analysis for hydrological design

It gives a framework that is financially critical for finding the exceptional designs of hydrological systems with a reduced cost in total inclusive of the project cost and the disaster mitigation cost. But there would be hardly any assessment of a decent quality damage function. Hence, errors in demonstrating the hydrologic events, incorrect model parameters, and so on may occur. Here, we will discuss a specific hydrological design that of a detention basin for studying and understanding the risk-based procedure, uncertainties, and probability analysis by following a systematic framework.

Question

OTO t
2
8. In catchment, the following 1-hr UH due to Imm effective rainfall is known:
Time (hr)
QUH(m3/s)
0
|||
FH) = Pc + (B-fo) "
A
A- Estimate the direct runoff if the effective rain fall during 1-hr is 5mm.
B- Estimate the direct runoff is the effective rainfall is 5mm during the first hour
and 10mm during the second.
فلاتر
10
O
2 of 1Page
إضافة شرح...
×
Malak

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Introdution

VIEW

Step 2: Calculating the value of direct runoff

VIEW

Step 3: Estimating the value of direct runoff

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Probability, risk and uncertainty analysis for hydrological design

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

It rains 3.0 in on a 20 acre watershed. What is the volume of runoff if 30% of the watershed area is a lake, and infiltration on the remaining soil is estimated at 1.0 in? Express your answer in ft³. Assume the lake level is low and does not contribute to runoff (i.e. the lake only serves as storage space).
For a catchment in India, the mean monthly temperatures are given. Estimate the runoff and annual runoff coefficient by Khosla’s method.
.
Net Storm Rainfall Example 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 over 5 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 1 3. 4 Time (hr) 700 600 500 400 300 200 100 4 8 12 16 20 24 Time (hr) Time (hr) Q (cfs) Volume (cfs-hr) 0-2 2-4 4-6 6-8 8-10 10-12 12-14 14-16 16-18 18-20 20-22 22-24 24-26 16 Q (cfs) iT (in./hr)
Q2. Two storms having duration of 4-hv and 2.hr respectively. If the rainfall excess values for the two storms were 2cm f 3cm respectively occurs Successive calculate the resulting direct runoff hydrographif the 2-hr UH For the Catchment is given below Time hr 2 4 G 10 12 14 16 18 2hr UH 25 50 75 125 100 60 20
B) The rates of rainfall for the successive 30 min period of a 3-hour storm are: 1.6, 3.6, 5.0, 2.8, 2.2, 1.0 cm/hr. The corresponding surface runoff' is estimated to be 3.6 cm. Establish the -index and its coefficient of runoff.