An updated reference table for extreme flood hydrology methods at UK dams

Abstract

There are several possible methods available for extreme flood estimation applicable for UK dams and reservoirs. New models continue to be released to calculate both rainfall and runoff. This paper gives a short summary of the methods that are currently recommended for use in reservoir flood studies, and the methods that have been recommended in the past. This is intended to help inform reservoir owners, panel engineers and hydrologists of current best practice and the extent of changes in methodology since historical flood studies were undertaken. A simplified approach for sensitivity testing of multiple methods is proposed.