Articles | Volume 21, issue 3
https://doi.org/10.5194/hess-21-1651-2017
https://doi.org/10.5194/hess-21-1651-2017
Research article
 | 
21 Mar 2017
Research article |  | 21 Mar 2017

Heterogeneity measures in hydrological frequency analysis: review and new developments

Ana I. Requena, Fateh Chebana, and Taha B. M. J. Ouarda

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Short summary
The notion of a measure to quantify the degree of heterogeneity of a region from which information is required to estimate the magnitude of events at ungauged sites is introduced. These heterogeneity measures are needed to compare regions, evaluate the impact of particular sites, and rank the performance of delineating methods. A framework to define and assess their desirable properties is proposed. Several heterogeneity measures are presented and/or developed to be assessed, giving guidelines.