HOMS COMPONENT

MEASUREMENT OF PEAK DISCHARGE BY THE SLOPE-AREA METHOD

1.   Purpose and objectives

     This manual describes the application of the Manning equation to  compute peak discharge in open channels.

2.   Description

     Field and office procedures required for this method are described, selection of reaches is detailed, discharge equations are given, and a complete example of computation of a slope-area measurement is also given.

3.   Input

     A reach of stream with high-water marks from a recent flood.

4.   Output

     The computed peak discharge.

5.   Operational requirements and restrictions

     Best results will be obtained when applied by a person experienced in the method on a suitable reach with good high-water marks.

6.   Form of presentation

     Handbook in English.

7.   Operational experience

     Used in U.S. for many years.

8.   Originator and technical support

     U.S. Geological Survey.

 
9.   Availability

     From the HOMS National Reference Centre for USA.

10.  Conditions on use

     None.

Last updated: 1 SEP 87)
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