|WORLD METEOROLOGICAL ORGANIZATION||
|Explanation of the criteria for classification and numbering of components||
|Explanation of the dates on the component's description|
METHODS FOR COMPUTING DESIGN FLOODS
1. Purpose and objectives
Estimation of design floods from rainfall data.
Uses rainfall data, or mapped statistics of the annual maximum rainfalls to estimate design floods for water resources projects. This component is complementary to K15.1.01.
Point storm rainfall data, or isoline maps of annual maximum rainfall statistics, model parameters.
Design flood hydrograph.
5. Operational requirements and restrictions
At least 20 years annual maximum rainfall data or alternatively maps of storm rainfall statistical parameters. Simultaneous rainfall and flow records for five or more storms and floods to determine rainfall-runoff model.
6. Form of presentation
Manual describing the technique.
7. Operational experience
Has been adopted for the "Standard for computing design floods for hydraulic structures", Ministry of Water Conservancy and Ministry of
Electric Power, China. See particularly appendices III, V and VI.
8. Originator and technical support
Institute of Water Conservancy and Hydropower Research.
10. Conditions on use
Cost of reproduction and mailing.
| Reclassified from K09.1.02 MAR 1987
(First entered: 23 JAN 81
Last updated: 09 SEP 81)