The following Tables show the rainfall hyetograph for 2 hours rainfall storm and the resultant hydrograph from a watershedwith an area of 100 Km². The rainfall depth P = 2 mm and the discharge Q = 5.5 m'/s. Answer the following questions byselecting the correct answer for each:Rainfall heytographPeriod (hr)Runoff HydrographTime (hr) a (m3/s)P (mm)0-0.50.5-12*P11-1.53*P2"Q1.5-24*p33*Q44"Q3"Q61. What is the peak clischarge for this stom, Qp?2. What is the total rainfall dlepth for this storm, P?3. Calculate the rainfall intensity in the third period (1-1.5 hr), i.4. Calculate the depth of runoff, R.5. Calculate the phi-Index for this watershed.6. Calculate the peak discharge for the Unit hydrograph, QP-UH in m3/s.

1.Peak discharge THEREFORE the peak discharge from above table is 22m3/s at 4h from start

The following Tableo show the rainfall hyetograph for 2 hours rainfall storm and the resultant hydrograph from a watershed with an area of 100 Km?. The rainfall depth P= 2 mm and the discharge Q = 5.5 m/a. Answer the following quetions by selecting the correct answer for each: Rainfall heytograph Period (hr) Runoff Hydrograph Time (hr) a(m3/s) P(mm) 0-0.5 0.5-1 2*P 1"Q 1-1.5 3*p 2"Q 1.5 -2 4*P 4 4*Q 5 3"Q 1. What io the peak clischarge for this storm, Qp? 2. What is the total rainfall clepth for this storm, P? 3. Calculate the rainfall intensity in the third period (1-1.5 hr), i. 4. Calculate the depth of runoff, R. 5. Calculate the phi-Index for this watershed. 6. Calculate the peak discharge for the Unit hydrograph, QP-UH in m3/s.

The following Tableo show the rainfall hyetograph for 2 hours rainfall storm and the resultant hydrograph from a watershed with an area of 100 Km?. The rainfall depth P= 2 mm and the discharge Q = 5.5 m/a. Answer the following quetions by selecting the correct answer for each: Rainfall heytograph Period (hr) Runoff Hydrograph Time (hr) a(m3/s) P(mm) 0-0.5 0.5-1 2P 1"Q 1-1.5 3p 2"Q 1.5 -2 4P 4 4Q 5 3"Q 1. What io the peak clischarge for this storm, Qp? 2. What is the total rainfall clepth for this storm, P? 3. Calculate the rainfall intensity in the third period (1-1.5 hr), i. 4. Calculate the depth of runoff, R. 5. Calculate the phi-Index for this watershed. 6. Calculate the peak discharge for the Unit hydrograph, QP-UH in m3/s.

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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Concept explainers

Precipitation

Precipitation forms the basis of the water cycle on the Earth. The air is packed with water molecules in the form of moisture or water vapor. This water vapor usually rises to the atmosphere due to density differences. Precipitation represents any form of water, in liquid form or frozen form that forms in the earth's atmosphere. The water vapor up in the atmosphere condenses due to low temperature and it leads to the formation of clouds. The water vapor that forms clouds on account of condensation, is preferably known as cloud droplet. These cloud droplets when become heavy and can no longer sustain the weight of condensed water droplets, they come to the Earth in the form of rain, snow, ice pellets, and hail. Precipitation patterns, evaporation, and condensation are the three parameters that decide the global water cycle, climate change, and weather. Additionally, smoke and dust particles are equally important parameters for precipitation, as they provide the surface area for the water vapors to get condensed and to form water droplets. So they are known as condensation nuclei. The presence of other pollutants in the air also serves as condensation nuclei. Precipitation always results in the pure water supply to earth, as the salt from the seawater does not evaporate with the water.

Question

The following Tables show the rainfall hyetograph for 2 hours rainfall storm and the resultant hydrograph from a watershed
with an area of 100 Km². The rainfall depth P = 2 mm and the discharge Q = 5.5 m'/s. Answer the following questions by
selecting the correct answer for each:
Rainfall heytograph
Period (hr)
Runoff Hydrograph
Time (hr) a (m3/s)
P (mm)
0-0.5
0.5-1
2*P
1
1-1.5
3*P
2"Q
1.5-2
4*p
3
3*Q
4
4"Q
3"Q
6
1. What is the peak clischarge for this stom, Qp?
2. What is the total rainfall dlepth for this storm, P?
3. Calculate the rainfall intensity in the third period (1-1.5 hr), i.
4. Calculate the depth of runoff, R.
5. Calculate the phi-Index for this watershed.
6. Calculate the peak discharge for the Unit hydrograph, QP-UH in m3/s.

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