Reporting of Stream-Aquifer Flow Distribution at the Regional Scale with a Distributed Process-Based Model - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Water Resources Management Année : 2015

Reporting of Stream-Aquifer Flow Distribution at the Regional Scale with a Distributed Process-Based Model

(1) , (2) , (2) , (2) , (3)
1
2
3
Alexandre Pryet
  • Fonction : Auteur
  • PersonId : 924839
Nicolas Flipo
F Saleh
  • Fonction : Auteur

Résumé

Groundwater withdrawals can reduce aquifer-to-stream flow and induce stream-to-aquifer flow. These effects involve potential threats over surface water and groundwater quantity and quality. As a result, the description of stream-aquifer flow in space and time is of high interest for water managers. In this study, the EauDyssée platform, an integrated groundwater/surface water model is extended to provide the distribution of stream-aquifer flow at the regional scale. The methodology is implemented over long periods (17 years) in the Seine river basin (76 375 km 2 , France) with a 6 481 km long simulated river network. The study scale is compatible with the scale of interest of water authorities, which is often larger than study scales of research projects. Net and gross stream-aquifer exchange flow are computed at the daily time step over the whole river network at a resolution of 1 km. Simula-tion results highlight that a major proportion of the main stream network (82 %) is supplied by groundwater. Groundwater withdrawals induce a reduction of net aquifer-to-stream flow (−19 %) at the basin scale and flow reversals in the vicinity of pumping locations. 140 Pryet et al. Such an integrated model provided at the appropriate regional scale is an essential tool provided to water managers for the implementation of the EU Water Framework Directive.
Fichier non déposé

Dates et versions

hal-01111964 , version 1 (02-02-2015)

Identifiants

Citer

Alexandre Pryet, B Labarthe, Nicolas Flipo, F Saleh, M Akopian. Reporting of Stream-Aquifer Flow Distribution at the Regional Scale with a Distributed Process-Based Model. Water Resources Management, 2015, 29, pp.139 - 159. ⟨10.1007/s11269-014-0832-7⟩. ⟨hal-01111964⟩
148 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More