The mass curve of rainfall of duration 100 minutes is given below. If the catchment had an initial loss of 0.6 cm and a 0-index of 0.6 cm/h, then the total surface runoff from the catchment is. (Round off to one decimal place.) cm. Time from start of rainfall (min) 0 20 40 60 80 100 Cumulative rainfall (cm) 0 0.5 1.2 2.6 | 3.3 3.5

The mass curve of rainfall of duration 100 minutes is given below. If the catchment had an initial loss of 0.6 cm and a 0-index of 0.6 cm/h, then the total surface runoff from the catchment is. (Round off to one decimal place.) cm. Time from start of rainfall (min) 0 20 40 60 80 100 Cumulative rainfall (cm) 0 0.5 1.2 2.6 | 3.3 3.5

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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Develop the Total I 1-hour Unit Hydro o Index is 2 cm Assume a baseflow of 2 m/s. SHOW SAMPLE CALCULATION BELOW for all types of calculations you need to do. ograph (TH) from a 3-hour duration storm on a watershed whose 1(UH) is given in the first two columns of the table below. Storm Data: Time 1" hour 2nd hour 3rd hour Rainfall depth (cm) 4 3 2.5 Computation Table (Please Fill-in the Blanks as needed) I-hr UH Time (hr) Direct Runoff per period and baseflow (use space as needed) Total Hydrograph Q (cms) (m'/s) 58 110 96 53 26 14 8. 9 4 10 3 11 1.5 12 13 14 15 16 Sample calculation (with proper units): Runoff depth sample calculation needed.A completely-worded sample calculation using Principle of Linearity is a must for any partial credit. Must show unit cancellations. Additional space in the nex page.
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
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).
6.4. The direct runoff hydrograph resulting from a 5cm of effective rainfall of 6hr duration is given below. Determine the area of the catchment and the ordinates of the 6hr UH. Time (hr) 6 12 18 24 30 36 42 48 54 60 66 72 Direct runoff 0 25 175 320 360 310 230 165 105 60 30 10 0 (m³/s) Ans. Area of the catchment =773.28km² The ordinates of 6hr UH at 6hr intervals are (0,5,35,64,72,62,46,33,21,12,6,2,0)
Can you answer please? Be fast please
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