The following are the ordinates of the 4-hr unit hydrograph for a watershed: 0 2 4 6 Time (hr) Discharge (m/s) 0 20 50 75 i) Derive the 2-hr Unit hydrograph. ii) What is the area of the watershed? 8 90 10 40 12 0

Q: Direct runoff hydrograph at catchment outlet is of trapezoidal shape. This DRH is due to a recorded…

A: Direct runoff hydrograph as shown-Rainfall depth of 2 cm in 2 hours,To Find-The area of catchment in…

Q: Question 2: using rational method, calculate the peak flow for an urban catchment has an area of 85…

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Q: The daily streamflow data for Fall River, Massachusetts at a site having a drainage area of 650 km2…

A: Drainage area, The time and flow rate is tabulated below.Time (days)Flow (m3/s)Time (days)Flow…

Q: Runoff values measured during a rainfall at the outlet of a watershed with the area of 96 km? are…

A: Unit hydrograph is a versatile tool for determining the hydrograph of surface runoff from any given…

Q: Question 3 A unit hydrograph for a watershed is triangular in shape with base period of 20 hours.…

A: Base period -T=20 hrsarea -A=500 ha=500×104 m2

Q: a. Derive a 2-hour Unit Hydrograph for a Watershed Area of 2600 acres. The total 2 hour rainfall was…

A: Watershed area = 2600 acres2 hr rainfall = 6 inrunoff for first two hours = 0.8 in = 2.032…

Q: Given below are the measured streamflow in cfs from a storm of 6-hour duration on a stream having a…

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Q: The annual daily mean discharge data for USGS 08057000 (Trinity Rv at Dallas, TX) is shown in the…

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Q: The following stream flow data was collected from a watershed of 280.35 acres. Plot the hydrograph…

A: Given:- The area of the watershed =  280.35 acres Discharge for a given time period is given To…

Q: WATER RESOURCES ENGINEERING: The following data was collected during a 5-hour storm event in the…

A: Given: Baseflow = 35 m3/s Also, Let area of basin = 2 km2

Q: Assuming the data follows a Normal distribution, compute and plot the probability mass function…

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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: Given below are ordinates of hydrograph, separate the base flow from direct runoff flow by using the…

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Q: Compute the runoff from a 5-in. rainfall from a watershed which has four soil groups overall and the…

A: P = 5 in Fair grass cover before urbanization

Q: A 1-hr, 1 cm unit hydrograph (UH) is presented in the table below. Time (hr) 3 4 UH (m³/s) 100 80 0…

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Q: ve Equal Marks. Q1: Given below are the flows from a storm of 1hr duration on a stream with a…

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Q: The eight-hour unit hydrograph (UH) of a watershed having a drainage area equal to 334.08 km² is as…

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Q: Determine the unit hydrograph for a basin area of 412.2 km2 using the rainfall and streamflow data…

A: Using constant slope method seperate base flow from the hydrograph :Baseflow =160m3sDirect runoff…

Q: The annual daily mean discharge data for USGS 08057000 (Trinity Rv at Dallas, TX) is shown in the…

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Unit Hydrograph

Hydrology is the science which deals with the study of water on the earth’s surface. The word Hydrograph is derived from the word hydro which means water. Hydrograph is basically a graph in which the discharge is plotted against the time interval at a specific point in a river or other channel. In a hydrograph, the discharge is plotted along the y-axis and time interval is plotted along the x-axis. Hydrograph is used to estimate the runoff. The variations in discharges with the change in time is shown by a hydrograph. It was revealed that the total discharge at an outlet increases with time by a kinematic wave model.