The one-hr unit hydrograph is given in the table. Determine the 2-hr unit hydrograph. Use the...
A water resources problem. Please answer with clear steps. The 2-hr unit hydrograph is given in the table. Determine the 4-hr unit hydrograph. Use the given table. The last column of your data count as your final answer 2-hr time UH (hr) (cfs) 10 13 14
2. (20pts) The discharge rates for an 1-hr unit hydrograph are given (see Table 1). Develop a 3-hr hydrograph with 2 in prepicitation (a rough sketch is optional) Table 1. 1-hr UH Time, hr Runoff (cfs) 0 0 100 2 250 3 150 4 0 1 Working table:
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...
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
The 4-hr unit hydrograph for a watershed is given as below. Time (hr) 2 4 6 8 10 12 14 Unit hydrograph (m3/s/10 mm) A design storm has 1.5 cm/hr in first 2 hr and 1.0 cm/hr in the second 2 hr. The abstraction rate is 0.5 cm/hr. Base flow is 10 m/s. Calculate the total runofi hydrograph.
QUESTION 6 The ordinates of a 3-hour unit hydrograph for a particular basin are given be-low. Determine the ordinates of the S-curve hydrograph and therefrom the ordinates of the 6-hour unit hydrograph. Time (hr) 3- hr UH m3/s 0 0 3 1.5 6 4.5 9 8.6 12 12.0 15 9.4 18 4.6 21 2.3 24 0.8 27 0
Predict the streamflow hydrograph for the North Branch Ralston Creek (A year 7-hour design storm 3.01 mi') for the 10- SCS 10-year 7-hour Design Storm for North Branch Ralston Creek Watershed Time 11n l ime in 0.0 0.14 0.14 0.20 0.30 0.34 0.60 0.90 1.60 0.80 0.40 0.20 0.14 0.12 0.12 0.5 4.0 5.0 2.5 6.0 6.5 3.5 Assume the following basin characteristics -index is 0.50 in/hr for the storm Time of concentration: 56 minutes Use the SCS dimensionless unit...
(10 marks) 13. Determine the unit hydrograph for the 99 acre watershed that produces the following hydrograph in response to a storm with a rainfall excess duration of 1 hour. Plot the Unit Hydrograph on this page. Base flow is 100 cfs. Flow (cfs) 500 400 300 200 100 Time (hrs)
2. [10 points] Determine the 4-hr unit hydrograph using the following data for a watershed having a drainage area of 200 km, assuming a constant rainfall abstraction rate of 1 cm per time period and a constant baseflow of 20 m3's. The ordinates of the unit hydrograph are in units of m s cm Four-hour period | 1 | 2-1 3 i 41 5 6 7 8 9 10| 11 Rainfall (cm) Streamflow (m s) 20 35 60 95 130...
2. Determine the outflow hydrograph given the inflow hydrograph below. Use Muskingum routing, the storage time constant is 2 hrs and the weighting factor is 0.2 Time (hr) Inflow (m3/s) 80 110 150 240 320 430 590 570 460 405 310 240 155 80 80 80 80 80 80 80 10 12 13 15 16 18 19 20