Skip to main content


Title: Low Flow Frequency Analysis Guidelines for Best Practice
Author: M D Zaidman
Author: V Keller
Author: A R Young
Author: Environment Agency
Document Type: Monograph
Annotation: Environment Agency Project ID:EAPRJOUT_1264, Representation ID: 424, Object ID: 2474
The general issues to be considered when contemplating a frequency analysis are discussed with a strong emphasis on likely sources of error and uncertainty. In order to encourage a consistent methodology to be adopted in the UK a single parametric approach for estimating the probability of occurrence of low flow events is recommended. This approach is based on the use of L-moments with a Pearson Type III probability distribution to estimate the flow - return period relationship for annual minima of different durations.
Publisher: Environment Agency
Subject Keywords: Flow rateRiversStreamsWater levelsBest practicesProbability analysis
Extent: 40
Total file downloads: 335

Download PDF    Display PDF in separate tab