The observed rainfall and discharge of a catchment is given the table. The catchment area is 0.23Km^2. Time (h) 1 2 3 14 5 6 7 8 19 a 10 11 12 13. Rainfall (mm) 0 0 2 6 10 8 2 0 0 0 0 0 0 1. Estimate the base flow. 2. Estimate the surface runoff. 3. Estimate the initial loss 4. Estimate the continuous loss using phi method. Discharge (M3/s) 20 20 20 20 30 50 40 35 25 21 20 20 20

The observed rainfall and discharge of a catchment is given the table. The catchment area is 0.23Km^2. Time (h) 1 2 3 14 5 6 7 8 19 a 10 11 12 13. Rainfall (mm) 0 0 2 6 10 8 2 0 0 0 0 0 0 1. Estimate the base flow. 2. Estimate the surface runoff. 3. Estimate the initial loss 4. Estimate the continuous loss using phi method. Discharge (M3/s) 20 20 20 20 30 50 40 35 25 21 20 20 20

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

Please solve it again because previous solutions were wrong.
Q1. Using the data for the following storm, determine the index for a watershed of an area of 3 km?. Time (hr) Rainfall (mm) Q (m³/s) 0.5 7 1 25 .89 1.5 12 2.37 3 3.86 2.5 5.35 3 5.54 3.5 4.75 4 3.86 4.5 2.97 2.1 5.5 1.2 .34 6.5
2-A 3 hours storm produces a flood hydrograph as: t (hr) Q (m³/s) 0 3 4 9 6 12 9 18 12 15 18 21 24 27 20 16 20 10 8 6 Determine 3 hr-UH, if the catchment area is 50 km². 3- Find the flood hydrograph of 3 hrs storm (use the UH of Q2). Total precipitation is 14.5 cm and 9-index is 1cm/hr. 30 4
Flow rate in a stream discharging water shed runoff is 50 cubic meters per second after five days without rain. The flow rate in the stream reaches half that amount after 20 days without rain. Determine the equation of basal flow hydrograph. Find the amount of flow rate after a period of six months in the watercourse.
5. From the 1mm 6 hour unity hydrograph given below, derive the 2 hour unit hydrograph. Time 12 18 24 30 (hrs) UH 15 8 3.6 0.6 0.0 (cumecs) What would be the peak surface runoff resulting from 3mm of rainfall falling in the space of two hours?
Question 03 In a given year, a catchment with an area of 9536 km? received 1.3 m of precipitation. The average rate of flow measured in a river draining the catchment was 30 m³s1. a. How much total river runoff occurred in the year (in m³)? b. What is the runoff coefficient? c. How much water is lost due to the combined effects of evaporation, transpiration, and infiltration. (Express in m).
Compute the diameter (cm) of the outfall required to drain storm water from the watershed described in figure below. Use rainfall intensity = 4 cm/hr. Average velocity of flow is 1 m/s. Other data are for: Area 1: C=0.5, area=0.005 km2. Area 2: C=0.4, area =0.01 km2. Area 3: C=0.7, area=0.015 km2.
Q1. Find linear relation between Discharge (Y cumec) and Stage (x m) of for the below hydrologic data: X Y X Y X Y X Y 18 905.7 19 1004.66 1 12.86 19 1004.66 17 811.9 12 420.3 19 1004.66 88.78 12 420.3 3 40.5 8 199.9 723.26 5 88.78 17 811.9 3 40.5 639.78 4 62.06 6 120.66 7 157.7 199.9 5 88.78 13 488.3 10 299.78 1 12.86 488.3 5 88.78 12 420.3 14 561.46 811.9 12 420.3 17 811.9 14 561.46 157.7 3 40.5 3 40.5 10 299.78 88.78 811.9 6 120.66 1 12.86 1108.78 6 120.66 10 299.78 1108.78 157.7 905.7 16 723.26 561.46 12.86 3 40.5 62.06 1004.66 9 247.26 88.78 639.78 488.3 639.78 120.66 811.9 12 420.3 357.46 7 157.7 13 17 7 5 20 18 1 19 17 11 1215256 17 20 7 13 LASZO 14 4 5 16 15 8 5 17 811.9 157.7 7
Given the data below: Drainage area = 405 hectares Neglect base flow TIME Hr. 0 2 4 6 8 10 12 14 16 18 Determine the following a) Direct runoff depth (Dr) b) Unit hydrograph peak flow c) Effective duration ORDINATES OF FLOOD HYDROGRAPH cu.m/s 0 0.6 1.1 2.6 5.4 4 2.6 ft. 1.7 0.3 0 cm per cm of runoff ORDINATES OF 2HR UNIT HYDROGRAPH Per cm per runoff
For the following rainfall rate, find the net runoff in cm, total rainfall and the value of W-index. Take Ø-index = 3. Time (min) 10 20 30 40 50 60 70 Rain rate (cm/hr) 2.5 2.5 10 7.5 1.25 1.25 5
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.
2 %V9 li. 3 (9 This question requires one response per row The base flow for this direct runoff hydrograph is: 0 4 8h o Index = 0.135 cm/h Rainfall excess = 5.52 cm 30 25 20 15 Direct runoff 5.52 cm 10 A Base flow -6 0 12 18 24 30 36 42 48 54 60 66 Time in hours -6 8 5.52 48 Discharge (m/s) 3.26 cm 2.26cm