Investigating the impact of two decades of urbanization on the water balance of the Yzeron peri-urban catchment, France

F. Branger 1 S. Kermadi 2 P. Krause 3 M. Labbas 1 C. Jacqueminet 2 K Michel 2 I. Braud 4 S. Kralisch 3
1 UR HHLY - Hydrologie-Hydraulique
2 EVS - Environnement Ville Société
3 Friedrich-Schiller-Universität Jena
4 LTHE - Laboratoire d'étude des transferts en hydrologie et environnement
Abstract : This paper addresses the impact of 18 years of urbanization (1990-2008) on the Yzeron meso-scale peri-urban catchment (150 km²), located close to Lyon, France. A simplified version of the distributed hydrological model J2000 was used to perform long term simulations at a daily time step for several land use scenarios. These scenarios were derived from satellite SPOT images from years 1990, 1999 and 2008. The corresponding land use maps were classified into 5 classes depending on the percentage of impervious surfaces and the dominant non-impervious land use (agriculture or forest). The paper presents the methodology for the model setup and the simulation results for the main water balance components of the catchment: total runoff, runoff components, evapotranspiration and soil moisture. The results highlight the change of the catchment seasonal response from 1990 to 2008, mainly due to a change of the respective contributions of groundwater flow / surface runoff (+ 92% /-28%, respectively). Monthly mean summer discharge unexpectedly appears to be higher in summer. It is provided by intermittent surface runoff generated by summer storm events. As surface runoff generated on urban surfaces is likely to carry a wide range of contaminants, this has a potential large impact on water quality.
Keywords : hydrological modelling land use change water balance J2000 JAMS Yzeron France
Type de document :
Communication dans un congrès
International Congress on Environmental Modelling and Software Managing Resources of a Limited Planet, 2012, Leipzig, Germany
Liste complète des métadonnées

Littérature citée [14 références]  Voir  Masquer  Télécharger
https://hal-ujm.archives-ouvertes.fr/ujm-01620562
Contributeur : Christine Jacqueminet <>
Soumis le : vendredi 20 octobre 2017 - 16:59:55
Dernière modification le : jeudi 12 juillet 2018 - 01:07:22
Document(s) archivé(s) le : dimanche 21 janvier 2018 - 14:33:23

Fichier

A6_0589_Branger_et_al.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

  • HAL Id : ujm-01620562, version 1

Collections

UNIV-ST-ETIENNE | EMSE | IRSTEA | OSUG | LTHE | UGA | ENS-LYON | UNIV-LYON2 | ENTPE | INSU | EVS_UMR5600 | INSA-LYON

Citation

F. Branger, S. Kermadi, P. Krause, M. Labbas, C. Jacqueminet, et al.. Investigating the impact of two decades of urbanization on the water balance of the Yzeron peri-urban catchment, France. International Congress on Environmental Modelling and Software Managing Resources of a Limited Planet, 2012, Leipzig, Germany. 〈ujm-01620562〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

133

Téléchargements de fichiers

20

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD