A watershed having an area 680 ha has a CN1 value of 77. Estimate the runoff volume (5) due to 3 days of rainfall as below: Day Rainfall (mm) Day 1 Day 2 Day 3 30 50 13
Q: PROBLEM #2 The one-hour unit hydrograph for a watershed is given below. Determine the runoff from…
A: Given data: abstration rate = 0.3 inch/hr Time(hr) 1 2 3 4 5 6 P(inch) 0.5 1.0 1.5 0.5 -…
Q: A catchment of area 120 ha has a time of concentration of 30 min and runoff coefficient of 0.3. If a…
A: Given: The catchment area is 120 ha. The runoff coefficient is 0.3. The duration of rainfall is 45…
Q: In this figure, parts from A to B represents: B C Direct runoff Peak food M Base flow Time in hours…
A: A hydrograph is a represent of discharge in y axis to time in X axis. It is mainly consist of three…
Q: A watershed has an area of 300 ha. Due to a 10 cm rainfall event over the watershed a streamflow is…
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Q: PROBLEM 2 Monthly rainfall values of 50% dependable year at a site selected for construction of…
A: In this question monthly and annual runoff volume is being asked...
Q: 1.2 The watershed at a site on a stream has 77000 ha area. The mean annual precipitation at this…
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Q: PROBLEM 2: Using the cumulative rainfall hyetagraph given below for a 150-km² watershed, determine…
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Q: Homework 2 Suppose a hypothetical watershed with an impervious surface and no losses, the maximum…
A: The total amount of rainfall can be evaluated as the sum of initial losses, infiltration, runoff,…
Q: Discuss the various factors, which affect the runoff from a basin.
A: Runoff can be defined as the portion of the precipitation that makes it's way towards rivers or…
Q: Q. Rainfall of intensity 20mm/h occurred over a watershed of area 1km² for duration of six hours. It…
A: Given Rainfall intensity I=20 mm/hArea A=1 km2duration t=6 hrsdirect runoff R=30,000 m3
Q: Calculate the peak runoff rate of the watershed whose area is 600 ha & the rainfall intensity is…
A: Given data : Watershed area (A)=600 haRainfall intensity (i)=2.5 cm/hrRunoff coefficient (C)=0.18
Q: a small watershed consists of the following: Area Land use Soil type (Donum) 12000 Residential lot…
A: For the soil type D, B, A and A the runoff coefficient is .85, .1, .2 and .25 respectively. The…
Q: A watershed 600 ha in area experienced a rainfall of uniform intensity 2.0 cm/h for duration of 8…
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Q: Knowing that the catchment area represented in the chart below is 20.3 km², calculate the volume of…
A: Area of the catchment = 20.3km2
Q: If the mean annual runoff of a drainage basin of 10000 km? is 140 m/sec, and the average annual…
A: As per the guidelines we are supposed to solve only 1 question. Kindly repost other question…
Q: The mean annual rainfall depth over a 280 km2 watershed is 725 mm. What is the mean annual volume of…
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Q: A catchment of area 250 ha has runoff coefficient of 0.6. A storm of duration larger than time of…
A: Given question require peak discharge with following given data 1 catchment area 2. Coefficient of…
Q: H.W: The drainage area of a river in a city is 12000 km2. If the mean annual runoff is determined to…
A: Given Area of river=12000km2 Mean annual runoff=140 m3/s Average annual runoff= 1m
Q: A watershed 600 ha in area experienced a rainfall of unifom intensity 2.0 cm/h for duration of 8…
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Q: A watershed 600 ha in area experienced a rainfall of uniform intensity 2.0 cm/h for duration of 8…
A: Given data Area of watershed (A) =600 ha = 600*104 m2 Uniform intensity of rainfall (i) = 2.0 cm/h…
Q: In a given year, a catchment with an area of 2500km2 received a 138cm of precipitation. The average…
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Q: Calculate mass balance for the calculation of change in storage in the reservior? Also calculate the…
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Q: A watershed 600 ha in area experienced a rainfall of uniform intensity 2.0 cm/h for duration of 8…
A: Solution- The given values are,The watershed area =600haUniform density…
Q: A catchment area of 140km2 recieve 120 cm of rainfall in a year. at the outlet of the catchment the…
A: A water catchment (also known as a "watershed") is a section of land where all of the water flows to…
Q: Average runoff from a 600 km2 catchment area was measured as 60 m3/s for a 3-hr period .lf the…
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Q: If the mean annual runoff of a drainage basin of 10,000 km2 is 140 m2/s , and the average annual…
A: Area = 10000km2Discharge = 140m2sAnnual runoff = 140m3s Change in storage, groundwater flow, and…
Q: The flow rates measured during a precipitation at the outlet of a basin with an area of 10800…
A: Surface runoff= Total flow-base flow Time(minute) Discharge (Q) Base flow surface runoff 1cm…
Q: The 1-hour unit (25mm) hydrograph for an ungauged watershed is estimated by a watershed modeler to…
A: assume BASE FLOW=0 excess rainfall=25 mm=2.5 cm
Q: For a basin area of 700 km2, a runoff depth of 40 mm, the of water required for irrigation equals 35…
A: Given data : Runoff depth=40 mmArea=700 km2Water depth required for irriagtion=35 cm
Q: Estimate the amount of depression storage for a storm occurring on a watershed with an area of 10…
A: Depression storage refers to small low points in undulating terrain that can store precipitation…
Q: Two centimetres of runoff result from a storm on a drainage area of 100 km sq. Convert this amount…
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Q: The mean annual rainfall depth over a 280 km2 Watershed is 725 mm. What is the mean annual Volume of…
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Q: For a catchment in India, the mean monthly temperatures are given. Estimate the runoff and annual…
A: Table is as shown
Q: The runoff from a drainage basin area 4320 km2 is estimated as 10000 cumec-days. What is the depth…
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Q: 4. Evaluale the peak flow for the following catchment: A=200 ha, runoff coefficient= 0.5,…
A: Given data : Runoff coefficient (C)=0.5Area (A)=200 haPrecipitation intensity (i)=1 cm/hr
Q: Q1: Find the average precipitation on the watershed area ,using : 1- Arithmetic method. 2- Thiessen…
A: We have to find Average precipitation on watershed area By using Arithmetic method and Thiessen…
Q: A watershed of area 90 hectares has a runoff coefficient of 0.4. A storm of duration larger than the…
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Q: A unit hydrograph for a watershed is triangular in shape with base period of 20 hours. The…
A: given- base period T=20 hrsarea A=500 ha=500×104 m2
Q: Assume that the average annual precipitation over a watershed is 1200 mm. if 45% of this…
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Q: In a given year, a catchment with an area of 2500 km2 received 130 cm of precipitation. The average…
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Q: For a catchment in India, the mean monthly temperatures are given. Estimate the runoff and annual…
A: For the given catchment,
Q: A catchment area of 140 km2 received 120 cm of rainfall in a year. At the outlet of the catchment…
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Q: Q1. Using the data for the following storm, determine the index for a watershed of an area of 3 km?.…
A: Given data in question Time duration Area of catchment Discharge Rainfall To find out ϕ index It…
Q: The flow rates measured during a precipitation at the outlet of a basin with an area of 32400…
A: surface runoff=Total flow-base flow Time (t) Total flow (Q) Base flow Surface runoff 1 cm…
Q: If the Kuils River has a catchment area of 200 square kilometres and receives in a year 600…
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Q: Balili watershed with 180 hectares of area received 150 millimeter of precipitation in 1 hour 30…
A: Given:- Area of watershed = 180 hectares Precipitation = 150 millimeter Time of precipitation = 1…
Q: The total rainfall in a catchment of area 1000 km² during an 8 hours storm is 24 cm, while the…
A: From the given question it is required to find the ϕindex for a storm of duration 8 hours.
Q: A catchment of are 0.25 km is subjected to a storm with the following profile: Time (hr) 1 2 3 4 5…
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Q: Problem 2 - It is necessary to maintain a constant flow of 15 million gal/month to a power plant…
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Q: 1. The 1-hr unit hydrograph for a watershed is given below. Determine the runoff for the third time…
A: Given data Abstraction rate = 0.3 in/hr
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- The ordinates of a hydrograph of surface runoff resulting from 4.5cm of rainfall excess of duration 8 hours in a catchment are as follows. Determine the ordinates of the 8h unit hydrograph for this catchment. Tabulate your solution and plot the 8H-UH.During a 6 hour storm, the total rainfall was recorded as 15 cm over an area of 900 km2. If the surface runoff determined from the hydrograph is 1x108 m3, calculate the phi-index.Average runoff from a 600 km2 catchment area was measured as 60 m3/s 3 points for a 3-hr period .If the depression storage is 10 cm and infiltration is 0.8 in what is the depth of rainfall (precipitation) in m ?
- Calculate the amount of rainfall that occurred over a catchment of 200 km2 which resulted in a runoff volume of 20 m3/s. Assume that 70% of the rainfall coverts to runoff.Rainfall intensity of a rural catchment is 50 mm/hr. The percentage contributions of catchment relief, catchment storage and ground characteristics in the calculation of runoff coefficient are 0, 5 and 30 respectively. What is the value of the S0-year ARI runoff coefficient (C) of this catchment? Write your answer correct to two decimal place.The table below shows the observed rainfall intensity on a 2.26 km? catchment area. Estimate the o index if the observed runoff is 282 097 m3.
- Estimate ∅-index for a watershed having an area 5 acres. The runoff volume caused by the rainfall is 56000 ft^3. Round off your answer to the nearest whole number. Indicate the unit. Plot the hyetograph and superimpose the final ∅-index. (1 acre = 43560 ft^2) * Using the rounded-off ∅-index, estimate the volume of infiltration losses in cubic feet. *A reservoir is to be constructed with the following characteristics: Mean Annual Runoff, MAR =50mm Catchment Area = 286km2 Coefficient of Variation CV= 110% Full Supply Capacity FSC = 8x 106m3 What is the probability that the reservoir will fill to full capacity from empty in one year assuming that the runoff data follows the Weibull distribution function? P(X-x) = 1-e^(aX/x)bThree cm of rain falls on a 20,000 hectares catchment area during a 24 hours period. If 70% of rainfall runs off, calculate the average rate of runoff in m3/s if runoff lasts for 72 hours. Show complete solution.
- The ordiantes of a 6h-UH of a watershed having a drainage area of 393 km^2 are given below. For a storm over the watershed having excess rainfall of 5cm for the first six hours and 15cm for the second six hours, compute the direct runoff hydrograph ordiantes and plot the hydrograph. (List all the DRH ordiantes in order)A triangular direct runoff hydrograph due to a storm has a time base of 90 hours. The peak flow of 60 m³/s occurs at 20 hours from the start of the storm, the area of catchment is 300 km². The rainfall excess of the storm (in cm), isIf the annual precipitation is 114 cm/yr, the land area is 13,289 m2, and the runoff coefficient is 0.4, what is the storm water runoff from this land area? (in m3/d with 2 decimal points)