A large river basin, with a watershed area of 125,000 km² is divided into six sub- basins with drainage areas of (a) 5,200 km², (b) 18,600 km², (c) 32,400 km², (d) 20,800 km², (e) 37,200 km², and (f) 10,800 km². The average annual precipitation for each subbasin is (a) 981 mm, (b) 752 mm, (c) 678 mm, (d) 495 mm, (e) 520 mm, and (f) 504 mm. What is the average annual precipitation for the overall 125,000 km² river basin?

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

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A: Given data:

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A: This question is from Hydrology.

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Q: O -index is 0.5 cm/h and the base flow at the outlet is The drainage area of a watershed is 50 km2 D…

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Q: 6-The six-hour unit hydrograph of a watershed having a drainage area equal to 393 km2 is as follows:…

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