HYDROLOGY Subject The mass curve of an isolated storm over a watershed is given below.Time from start 0 0.51.01.52.0 2.5 3.0 3.54.04.55.0(h)Cumulative0 0.20.51.11.6 2.63.5 5.7 6.5 7.3 7.7rainfall (cm)50000If the storm produced a direct runoff of 3.5 cm at the outlet of the watershed, estimate the-index of the storm and duration of rainfall excess.

Answered: Image /qna-images/answer/6a655175-9044-44bf-ab09-3bf562093997.jpg

Answered: start 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0…

start 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 0.2 0.5 1.1 1.6 2.6 3.5 5.7 5 0 0 0 0 0 0 oduced a direct runoff of 3.5 cm at the outlet of the wa storm and duration of rainfall excess.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 9P

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Question

HYDROLOGY Subject

The mass curve of an isolated storm over a watershed is given below.
Time from start 0 0.5
1.0
1.5
2.0 2.5 3.0 3.5
4.0
4.5
5.0
(h)
Cumulative
0 0.2
0.5
1.1
1.6 2.6
3.5 5.7 6.5 7.3 7.7
rainfall (cm)
5
0
0
0
0
If the storm produced a direct runoff of 3.5 cm at the outlet of the watershed, estimate the
-index of the storm and duration of rainfall excess.

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