| Issue |
La Houille Blanche
Number 6, Décembre 2007
|
|
|---|---|---|
| Page(s) | 83 - 89 | |
| Section | 29èmes Journées de l'Hydraulique, Variations climatiques et hydrologie : Détection, l’état de la variabilité | |
| DOI | https://doi.org/10.1051/lhb:2007087 | |
| Published online | 03 January 2008 | |
Analyse régionale sur les extrêmes hydrométriques en France : détection de changements cohérents et recherche de causalité hydrologique
Regional analysis on changes in hydrological extremes in France
CEMAGREF Lyon, 3 bis quai Chauveau, 69009 Lyon
Auteur de correspondance : lang@lyon.cemagref.fr
Abstract
This paper presents a national study on the detection of climatic changes in hydrological extremes in France. A high number of changes have been detected but after an extensive criticism of data, half of these changes can be related to non-climatic factors, especially metrological issues. A regional analysis based on a reduced number of stations, whose quality can be insured, doesn’t show a consistent and generalized change in French rivers. Specific behaviours have been explained in mountainous basins, related to the increasing of temperature, and in the North of France with an increasing of both rainfall and flood peaks.
© Société Hydrotechnique de France, 2007