53:078 Principles of Hydrology (Spring 2004)
Problem #17
Changing Unit Hydrograph Durations

The 2-hour unit hydrograph for a watershed is:

Time (hours)

0

1

2

3

4

5

6

7

8
UH (cfs)

0

 50

200

350

300

150

100

50

 0

Use this information to compute the following:

  1. The watershed area (mi2)
  2. The 6-hour unit hydrograph (in cfs) using method 1 (new duration is an integral multiple).
  3. The S-hydrograph (in cfs)
  4. The 5-hour unit hydrograph (in cfs) using method 2 (the S-hydrograph method).
Last changed on 03/22/04 by aab.