Dépôt numérique
RECHERCHER

Change point detection of flood events using a functional data framework.

Téléchargements

Téléchargements par mois depuis la dernière année

Plus de statistiques...

Alaya, Mohamed Ali Ben; Ternynck, Camille; Dabo-Niang, Sophie; Chebana, Fateh; Ouarda, Taha B. M. J. (2020). Change point detection of flood events using a functional data framework. Advances in Water Resources , vol. 137 . p. 103522. DOI: 10.1016/j.advwatres.2020.103522.

[img] PDF
Document sous embargo jusqu'à 28 janvier 2022.
Disponible sous licence Creative Commons Attribution Non-commercial No Derivatives.

Télécharger (1MB)

Résumé

Change point detection methods have an important role in many hydrological and hydraulic studies of river basins. These methods are very useful to characterize changes in hydrological regimes and can, therefore, lead to better understanding changes in extreme flows behavior. Flood events are generally characterized by a finite number of characteristics that may not include the entire information available in a discharge time series. The aim of the current work is to present a new approach to detect changes in flood events based on a functional data analysis framework. The use of the functional approach allows taking into account the whole information contained in the discharge time series of flood events. The presented methodology is illustrated on a flood analysis case study, from the province of Quebec, Canada. Obtained results using the proposed approach are consistent with those obtained using a traditional change point method, and demonstrate the capability of the functional framework to simultaneously consider several flood features and, therefore, presenting a comprehensive way for a better exploitation of the information contained in a discharge time series.

Type de document: Article
Mots-clés libres: functional data analysis; change point detection; hydrology; flood
Centre: Centre Eau Terre Environnement
Date de dépôt: 17 avr. 2020 18:16
Dernière modification: 17 avr. 2020 18:16
URI: http://espace.inrs.ca/id/eprint/10121

Actions (Identification requise)

Modifier la notice Modifier la notice