Wazneh, Hussein; Chebana, Fateh 
ORCID: https://orcid.org/0000-0002-3329-8179 et Ouarda, Taha B. M. J. ORCID: https://orcid.org/0000-0002-0969-063X
(2015).
Delineation of homogeneous regions for regional frequency analysis using statistical depth function.
Journal of Hydrology
, vol. 521
.
pp. 232-244.
DOI: 10.1016/j.jhydrol.2014.11.068.
Résumé
The aim of regional frequency analysis (RFA) is to estimate extreme hydrological events at sites where little or no hydrological data are available. The delineation of sub-regions and the regional estimation within these sub-regions are the two main steps of RFA. As currently practiced, the delineation step is unrobust and subjective. To overcome these limitations, the present paper aims to propose a new robust approach for delineating homogeneous sub-regions. The proposed approach is objective and based on the concept of depth function. A data set from three geographical regions in the North-West of Italy is used to apply and compare the proposed approach with a traditional one. Results indicate that the proposed depth-based approach leads to more homogeneous sub-regions in terms of H heterogeneity measure, and leading to more efficient quantile estimations in terms of relative bias and relative root mean square error, than those obtained by the traditional approach.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | ungauged basins; homogeneous sub-region; regional frequency analysis; statistical depth function; clustering analysis |
| Centre: | Centre Eau Terre Environnement |
| Date de dépôt: | 25 avr. 2018 15:12 |
| Dernière modification: | 21 févr. 2022 17:30 |
| URI: | https://espace.inrs.ca/id/eprint/3954 |
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