A catchment area of 140km2 recieve 120 cm of rainfall in a year. at the outlet of the catchment the flow in the stream draining sa catchment watch found to have have an average rate of 2.0 m^3 /s for 3 months 3.0 m^3 /s for 6 months and 5.0  m^3/s for 6 months and 5.0 m^3/s  for 3 months   a. what is the runoff coefficient for the catchment? b.if the afforestation of the catchment reduces of the runoff coefficient to 0.50, what is the increase in the abstraction from precipitition due to infiltration evaporation and transpiration for the same annual raindall of 120cm

Q: The following data was collected during a 5-hour storm event in the study watershed. The baseflow…

A: Given: Baseflow = 35 m3/s

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

A:

Q: stream with a flowrate of 10 m3/min and an MTBE concentration of 5 g/m3 flows into the first…

A: Inflow rate = Inflow concentration = Reservoir volume (V) = Time (t) = 1 hour = 60 minutes

Q: The daily record of rainfall over a catchment area is 0.2 million cubic meters. It has been found…

A: Given: Total rainfall over the catchment (QR) = 0.2 million cubic meter. QR = 0.2 x 106 m3 The head…

Q: The following is the hydrograph resulted from a rainfall intensity of 2 cm/hr for a duration of 2…

A: Time (hours)Q ()010140228322416510To develop:2 hours unit hydrograph

Q: Q3) The rate of rainfall in mm/hr observed over a catchment of (30) km? is as follows: 16, 20, 24,…

A: Given data in question  Rainfall intensity Area 30 km2 Phi index 22 mm/hr To find out  Volume of…

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 small watershed has an area of 3 km². The slope of the catchment is 1/150 and the maximum length…

A:

Q: If the following runoff is created by 5 hours of rainfall with a depth of 30 cm. What is the…

A: Rainfall Depth = 30 cm Duration of rainfall = 5 hours

Q: Answer question 1

A: Given data in question  Volume 125.6 m3 Base area 500 m2 To find out  Storage depth

Q: In a given year, a watershed with a drainage area of 200 km² received 1000 mm of rainfall. The…

A: It is required to depth of water at outlet. Q=VtQ=A×hthoutlet=Q×tA Here Q is the flow rate at…

Q: Reportedly one of the shortest rivers in the world at 30 m in length, the Ombla River watershed…

A: The objective of the question is to calculate the annual runoff that reached the river as discharge,…

Q: 4. Given the inlet below, with h=0.5 ft, W=1.5 ft, L=4.0 ft, and a gutter depression depth=0.33 ft,…

A: The value of "h" = 0.5 ft The value of "W" = 1.5 ft The value of "L" = 4 ft The gutter depression…

Q: A catchment has a drainage area of 0.025 km², a runoff coefficient of 0.6, an inlet time of 20…

A: This question is from Hydrology.