Problem 2. A storm had 3 successive 6-hr intervals of rainfall magnitude of 3.0, 5.0 and 4.0 cm, respectively. Time from the beginning 0 3 6 9 12 18 24 30 36 48 54 60 66 42 of the storm (hr) 6-hr UH ordinates (cumecs) 0 150 250 450 600 800 700 600 450 320 200 100 50 0 a. Plot the resulting DRH due to 3 rainfall events, assuming a phi-index of 0.20 cm/hr. • Recall that the phi-index represents the rate of infiltration. • The hydrograph plots RUNOFF rates, where runoff = precipitation - losses. Note that the rainfall magnitude is reported as total rainfall depth in 6 hrs, so convert infiltration as a total for every 6 hr period. b. Assuming a baseflow of 30 m3/s, what are the ordinates of the storm hydrograph?

Q: 9.15. The IDF function for 10- yr storms in Atlanta, Georgia, is given by i 1628 (t + 8.16)0.76…

A: maximum rainfall intensity occurs at 38% of the rainfall durationDuration= 40-min

Q: Question 1: The cumulated precipitation recorded for a given event in Fairfax, VA, is shown in the…

A: solution: Time (hh:mm) PCUM (in) i Intensity 00:00 0.00 0 00:15 1.13 0.075 00:30 2.04…

Q: CE 141-2 HW2-A The mass curve of rainfall in a storm of total duration 90 minutes is given below.…

A:

Q: 10. Problema 9.16 The precipitation resulting storm in Miami, Florida is estimated to be…

A:

Q: According to the IDF curve given below, predict the precipitation intensity for a rainfall event…

A:

Q: Question- There are 16 number of rain gauge stations which gives an error of 10% while estimating…

A: Number of stations N=16, Error e=10%, To Find- The coefficient of variation of the rainfall (Cv).

Q: For a 14 hours storm, accumulated rainfall is given below. Time (hours) 02 4 6 8 10 12 14…

A: For a 14-hour storm,

Q: 2. A catchment has six rain gauge stations. In a year, the annual rainfall recorded by the gauges…

A: since the given question is multiple type therefore as per guidelines only one question will be…

Q: 9.16. The IDF function for 10- yr storms in Santa Fe, New Mexico, is given by 818 (t + 8.54)0.76…

A: Solving question firstGiven data,IDF function function for 10 yr given by maximum intensity occurs…

Q: Time (hrs) Depth (mm) of rainfall 1 5.86 2 1313 3068 4 16.79 10.53 13

A:

Q: create a hyetograph of the storm event. What is the maximum rainfall intensity? b) Plot the rainfall…

A: Area of dirt lot = 2 acretime steps = 0.5 hrrunoff coefficient =0.7time, intensity table is given…

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.