Standard Article

Hydrological Frequency Analysis

Hydrological Processes

  1. Salaheddine El Adlouni

Published Online: 15 JAN 2013

DOI: 10.1002/9780470057339.vnn039

Encyclopedia of Environmetrics

Encyclopedia of Environmetrics

How to Cite

El Adlouni, S. 2013. Hydrological Frequency Analysis. Encyclopedia of Environmetrics. 3.

Author Information

  1. Université de Moncton, Moncton, New Brunswick, Canada

Publication History

  1. Published Online: 15 JAN 2013


This article presents a detailed review on developments related to hydrological frequency analysis (HFA). All the HFA steps for hypothesis testing, probability distribution tails, and parameter estimation are discussed. These developments on HFA concern nonstationary models in order to consider the effect of covariates on extreme quantile estimation. Such an approach allows one to reduce uncertainty when estimating return period events.


  • hydrological frequency analysis;
  • hydrological extremes;
  • heavy tailed distributions;
  • generalized maximum likelihood;
  • hypothesis testing;
  • decision support systems