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The area is 20 km^2
A hydrograph for was obtained for this representative catchment and is...
2. A 10-minute unit hydrograph (UH) of a catchment is given in the table below. What...
2. A 10-minute unit hydrograph (UH) of a catchment is given in the table below. What is the catchment area? (5 marks) Time step (10 minutes) 1 2 3 4 Discharge (mº/{s.cm)) 8 18 30 10 For a storm partern given in the table below, determine and plot runoff hydrograph at a 5-minute interval using the above 10-minute UH. Determine the time of concentration of the catchment. Assume the o index value for the catchment to be 12 mm/hr, and...
6. a) The hydrograph observed at the outlet of a basin of area 160 km2 is...
6. a) The hydrograph observed at the outlet of a basin of area 160 km2 is given in a table below. It is assumed that the rainfall intensity is constant at 50 mm/hr and the infiltration index is 10 mm/hr. Derive the unit hydrograph of a basin. t(min) 30 60 90 120 150 Q (m/s) 200 800 1400 800 200 200 0 b) Please calculate the total runoff hydrograph (with baseflow) if uniform rainfall depth 2cm occurs within an hour.
A catchment is having total area of 60 hectares. The rainfall intensity relation with duration for...
A catchment is having total area of 60 hectares. The rainfall intensity relation with duration for this catchment is given by the relation I = 100/(t+20), where I is in cm/h and t is duration of rain in min. (a) Draw the graph of rainfall intensity relation with duration at 10 min interval? (b) What will be the storm water runoff from this catchment if the average imperviousness factor is 0.63, and time of concentration is 35 min? (c) If...
2. Refer to the rainfall and streamflow data tabulated below for the area of 280 [km]. Time Observed Gross hPrecipitation (GRH) [cm/h] 0.25 3.00 2.75 Time (h) Hydrograph 160 150 350 800 025 1200 4 90...
2. Refer to the rainfall and streamflow data tabulated below for the area of 280 [km]. Time Observed Gross hPrecipitation (GRH) [cm/h] 0.25 3.00 2.75 Time (h) Hydrograph 160 150 350 800 025 1200 4 900 700 550 350 250 160 140 10 (a) Obtain an Unit Hydrograph (UH) of these series. In this process, use the horizontal straight-line method to separate baseflow. [10pt] (b) Can you also transfer the UH obtained from (a) to the 6-hour UH for this...
Hydrologic analysis of a watershed Problem2: The unit hydrograph is the direct runoff generated by 1 unit (I mm in this...
Hydrologic analysis of a watershed Problem2: The unit hydrograph is the direct runoff generated by 1 unit (I mm in this problem) of excess rainfall. The one-hour unit hydrograph of a watershed is given by: 4 Time (hour) -0.9 U0.4 U0.2 0.0 0.0 U-0.6 Unit hydrograph (m/s/mm) (a) The 100-year storm over the watershed has the following excess rainfall pulses: Fromt 0 to 1 hour, P45 mm From t I to 2 hours, P20 From t = 2 to 3...
2. [20 pts] Draw the direct runoff hydrograph for a 2-hr effective rainfall that generates total...
2. [20 pts] Draw the direct runoff hydrograph for a 2-hr effective rainfall that generates total 3 inch of runoff 1-hr Unit Hydrograph 120 100 80 60 40 20 Time (hr) DRO DRO-5 tvo
Please Hw2 question asap A rainfall with a duration of 3 hrs on a 73.6 Square...
Please Hw2 question asap
A rainfall with a duration of 3 hrs on a 73.6 Square mile (190.8 square km) catchment Resulted in the following Runoff hydrograph. US UHG SIUHG Runoff hydrograph And UHG for 3-hr Storm 0.0 529.5 706.0 0.0 689.3 919.1 2527.4 232 3676.2 41.0 2757.2 307 2205.7 1470.5 16.4 919.1 689.3 0.0 15 7.7 2824.0 15 24.6 21 1129.6 706.0 529.5 0.0 12178.5 ftA3/s 1.32E+08 32 20 15 7.7 0.0 30 0.0 345.0 mA3/s 3.73E+06 DRV> 73.7...
QUESTION 4 Use the 1.h unit hydrograph tabulated below to predict the direct runoff hydrograph that...
QUESTION 4 Use the 1.h unit hydrograph tabulated below to predict the direct runoff hydrograph that would be observed as a result of a storm whose effective rainfall is also tabulated below. 2 Unit hydrograph Time 1-h UHG (h) (m3/s.cm) 1 0 18.75 65.625 150 178.125 128.125 87.5 8 53.125 25 106.25 9 Effective rainfall hyetograph Time Excess rainfall (h) (cm/h) 0-3 3-6 6 -9 1.0 2.0 1.5 1201
Question J. (2010 ) A 2-hour unit hydrograph for a drainage area is given below. a)...
Question J. (2010 ) A 2-hour unit hydrograph for a drainage area is given below. a) Derive the streamflow hydrograph for a storm that produces 0.5 in. and 1.0 in. of excess precipitation over two consecutive 2-hour periods. Assume the baseflow is negligible. b) What is the peak rate of the streamflow and time to peak? Present all steps of your calculations. UH Time (hr) (cfs) 0 12 26 12 8 0 14
3 and 4 3. Discharge rates for a flood hydrograph passing the outlet of a 600-acre...
3 and 4
3. Discharge rates for a flood hydrograph passing the outlet of a 600-acre drainage basin is given below. The flood was produced by a uniform rainfall rate of 2.75 in/hr, which started at 9 am and ended abruptly at 11 am. Time (hr)Q (cfs) 8:00 AM100 9:00 AM100 10:00 AM 300 11:00 AM 500 12:00 PM 700 1:00 PM800 2:00 PM600 3:00 PM400 4:00 PM 300 5:00 PM 6:00 PM 100 7:00 PM100 200 a) At what...
2. A 10-minute unit hydrograph (UH) of a catchment is given in the table below. What is the catchment area? (5 marks) Time step (10 minutes) 1 2 3 4 Discharge (mº/{s.cm)) 8 18 30 10 For a storm partern given in the table below, determine and plot runoff hydrograph at a 5-minute interval using the above 10-minute UH. Determine the time of concentration of the catchment. Assume the o index value for the catchment to be 12 mm/hr, and...
6. a) The hydrograph observed at the outlet of a basin of area 160 km2 is given in a table below. It is assumed that the rainfall intensity is constant at 50 mm/hr and the infiltration index is 10 mm/hr. Derive the unit hydrograph of a basin. t(min) 30 60 90 120 150 Q (m/s) 200 800 1400 800 200 200 0 b) Please calculate the total runoff hydrograph (with baseflow) if uniform rainfall depth 2cm occurs within an hour.
2. Refer to the rainfall and streamflow data tabulated below for the area of 280 [km]. Time Observed Gross hPrecipitation (GRH) [cm/h] 0.25 3.00 2.75 Time (h) Hydrograph 160 150 350 800 025 1200 4 900 700 550 350 250 160 140 10 (a) Obtain an Unit Hydrograph (UH) of these series. In this process, use the horizontal straight-line method to separate baseflow. [10pt] (b) Can you also transfer the UH obtained from (a) to the 6-hour UH for this...
Hydrologic analysis of a watershed Problem2: The unit hydrograph is the direct runoff generated by 1 unit (I mm in this problem) of excess rainfall. The one-hour unit hydrograph of a watershed is given by: 4 Time (hour) -0.9 U0.4 U0.2 0.0 0.0 U-0.6 Unit hydrograph (m/s/mm) (a) The 100-year storm over the watershed has the following excess rainfall pulses: Fromt 0 to 1 hour, P45 mm From t I to 2 hours, P20 From t = 2 to 3...
2. [20 pts] Draw the direct runoff hydrograph for a 2-hr effective rainfall that generates total 3 inch of runoff 1-hr Unit Hydrograph 120 100 80 60 40 20 Time (hr) DRO DRO-5 tvo
Please Hw2 question asap
A rainfall with a duration of 3 hrs on a 73.6 Square mile (190.8 square km) catchment Resulted in the following Runoff hydrograph. US UHG SIUHG Runoff hydrograph And UHG for 3-hr Storm 0.0 529.5 706.0 0.0 689.3 919.1 2527.4 232 3676.2 41.0 2757.2 307 2205.7 1470.5 16.4 919.1 689.3 0.0 15 7.7 2824.0 15 24.6 21 1129.6 706.0 529.5 0.0 12178.5 ftA3/s 1.32E+08 32 20 15 7.7 0.0 30 0.0 345.0 mA3/s 3.73E+06 DRV> 73.7...
QUESTION 4 Use the 1.h unit hydrograph tabulated below to predict the direct runoff hydrograph that would be observed as a result of a storm whose effective rainfall is also tabulated below. 2 Unit hydrograph Time 1-h UHG (h) (m3/s.cm) 1 0 18.75 65.625 150 178.125 128.125 87.5 8 53.125 25 106.25 9 Effective rainfall hyetograph Time Excess rainfall (h) (cm/h) 0-3 3-6 6 -9 1.0 2.0 1.5 1201
Question J. (2010 ) A 2-hour unit hydrograph for a drainage area is given below. a) Derive the streamflow hydrograph for a storm that produces 0.5 in. and 1.0 in. of excess precipitation over two consecutive 2-hour periods. Assume the baseflow is negligible. b) What is the peak rate of the streamflow and time to peak? Present all steps of your calculations. UH Time (hr) (cfs) 0 12 26 12 8 0 14
3 and 4
3. Discharge rates for a flood hydrograph passing the outlet of a 600-acre drainage basin is given below. The flood was produced by a uniform rainfall rate of 2.75 in/hr, which started at 9 am and ended abruptly at 11 am. Time (hr)Q (cfs) 8:00 AM100 9:00 AM100 10:00 AM 300 11:00 AM 500 12:00 PM 700 1:00 PM800 2:00 PM600 3:00 PM400 4:00 PM 300 5:00 PM 6:00 PM 100 7:00 PM100 200 a) At what...
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