HOMS COMPONENT

COLLECTION AND PROCESSING OF HISTORICAL FLOOD DATA

1.   Purpose and objectives

     Methods for deriving flood peak levels and discharge etc. for floods which occurred before the start of the observational record.

2.   Description

     Systematic analyses are made by field survey of historical floods, and by reference to historical literature and cultural relics. Hydraulic and hydrological methods can then be used to estimate the required features of the floods.

3.   Input

     Historical information.

4.   Output

     Estimate of flood data.

5.   Operational requirements and restrictions

     Not applicable.

6.   Form of presentation

     Technical reports.

7.   Operational experience

     These methods are widely used in China.

8.   Originator and technical support

     Hydrological Centre, Yangtze Valley Planning Office Hangkow, China.

9.   Availability

     From the HOMS National Reference Centre for China.

10.  Conditions on use

     Cost of reproduction and mailing.

Last updated: 17 SEP 81)
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