2. (20pts) The discharge rates for an 1-hr unit hydrograph are given (see Table 1). Develop...
The one-hr unit hydrograph is given in the table. Determine the 2-hr unit hydrograph. Use the given table. The last column of your data count as your final answer 1-hr time UH (hr) (cfs) 0.5 1.5 2.5 3.5
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. 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...
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...
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
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
hydrology Have 30mins Q1) (25 Points) Discharge of total flood hydrograph is given below. Basin area is 100 km2, precipitation intensity is 80 mm/hr and the infiltration rate is 20 mm/hr. If the base flow is 100 m3/sec, then find the unit hydrograph and duration of precipitation. The total flood hydrograph is given in Table 1 and drawn below. Table 1. Total Flood Hydrograph 40 60 80 100 0 20 120 140 160 t(minutes) Q(m3/sec) 100 700 610 520 430...
The area is 20 km^2 A hydrograph for was obtained for this representative catchment and is given below. 1.Calculate the precipitation excess that would be needed to obtain this hydrograph from the unit hydrograph method. The resulting precipitation excess corresponds to a 30-min time duration. Show the unit hydrograph in table format. (2) 2.Determine the runoff hydrograph for a 30min rainfall excess of 2cm. (2) 3.Estimate the runoff hydrograph for a 50min rainfall excess of 3cm. (4) Time (hr) Runoff...
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
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.