1. The initial infiltration capacity f0 of a watershed is estimated as 1.5 in./hr, and the time constant is taken to be 0.35 hr -1. The equilibrium capacity fc is 0.2 in./hr. Use Horton's equation to find (a) the values of fat t = 10 min, 30 min, 1 hr, 2 hr, and 6 hr, and (b) the total volume of infiltration over the 6-hr period.
1. The initial infiltration capacity f0 of a watershed is estimated as 1.5 in./hr, and the time constant is taken to be 0.35 hr -1. The equilibrium capacity fc is 0.2 in./hr. Use Horton's equation to find (a) the values of fat t = 10 min, 30 min, 1 hr, 2 hr, and 6 hr, and (b) the total volume of infiltration over the 6-hr period.
Chapter2: Loads On Structures
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Please Answer this with clear and step by step solution. I need this ASAP. Thankyou. It is Hydrology Subject.
Transcribed Image Text:1. The initial infiltration capacity f0 of a watershed is estimated as 1.5 in./hr, and
the time constant is taken to be 0.35 hr -1. The equilibrium capacity fc is 0.2
in./hr. Use Horton's equation to find (a) the values of fat t = 10 min, 30 min, 1 hr,
2 hr, and 6 hr, and (b) the total volume of infiltration over the 6-hr period.
2. In a catchment area, approximated by a circle of diameter 100 km, four rainfallI
stations are situated inside the catchment and one station is outside in its
neighbourhood. The coordinates of the center of the catchment and of the five
stations are given below. Also given are the annual precipitation recorded by the
five stations in 1980. Determine the average annual precipitation by the Thiessen
-polygon method.
Centre: (100, 100)
Distance are in km
Diameter: 100 km.
Station
1
3
4
5
(30,
80)
Coordinates
(100, 140) (130, 100)
(100, 70)
(70,
100)
Precipitation (cm)
85.0
135.2
95.3
146.4
102.2
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