Impact of the storm Alex on water exchanges between the Roya River and its alluvial aquifer

The alluvial aquifer of the transnational Roya River watershed is an important water resource for drinking water supply. Through successive European projects, a monitoring network has been implemented over the alluvial plain to improve the understanding of the functioning of this aquifer. For instan...

Full description

Saved in:
Bibliographic Details
Published inProceedings of the International Association of Hydrological Sciences Vol. 385; pp. 275 - 279
Main Authors Lanini, Sandra, Ladouche, Bernard, Dewandel, Benoit, Ibba, Melissande, Bailly-Comte, Vincent, Genevier, Marie
Format Journal Article
LanguageEnglish
Published Copernicus Publications 18.04.2024
Online AccessGet full text

Cover

More Information
Summary:The alluvial aquifer of the transnational Roya River watershed is an important water resource for drinking water supply. Through successive European projects, a monitoring network has been implemented over the alluvial plain to improve the understanding of the functioning of this aquifer. For instance, studies highlighted the predominant role of surface water in the recharge of the aquifer. Following the storm Alex and the resulting exceptional flood event in the Roya valley in October 2020, a general decrease of the piezometric levels was observed in the alluvial aquifer. Changes in the river morphology and in the granulometry of the hyporheic zone have impacted surface water – groundwater exchanges and reduced the aquifer recharge.
ISSN:2199-899X
2199-8981
2199-899X
DOI:10.5194/piahs-385-275-2024