ABHERVÉ Ronan

Researcher at INRAE / UMR SAS 1069 (Soil, Agro-hydrosystem, Spatialization) Phone: 02 23 48 52 23 Email: ronan.abherve@inrae.fr Address: INRAE Bretagne-Normandie, UMR SAS, 65 rue de St-Brieuc, CS 84215, 35042 Rennes Cedex, France Fields of expertise: hydrology-hydrogeology, critical zone sciences: climatology, geomorphology, geophysics, geochemistry, ecohydrology, etc. Keywords: numerical modeling, bedrock aquifers, headwaters, river intermittency, climate change, water resources

Current position

Researcher in hydrology
 ==> Interactions of water quantity-quality in the context of global change.

AQUA Department: https://www.inrae.fr/departements/aqua
Ressources Axis: https://umrsas.rennes.hub.inrae.fr/recherche/Axe-Ressources

Research activities

Current context

My research focuses on hydrology, specifically hydrogeology, the study of groundwater. Using hydro(geo)logical numerical models, the simulations of the water cycle at the scale of headwaters in watersheds allow to better understand the water transfers in the territories. These tools are useful to represent the dominant processes driving water quantity and quality dynamics, such as groundwater flow and the associated nutrient transport (carbon, nitrogen, phosphorus). In parallel, field data allow to both improve our understanding of the hydrological functioning of the studied system and better constrain the models. Using climatic, agricultural, and land-use scenarios, the developed models are used to explore and to integrate potential future trajectories, integrating both direct and indirect effects of climate change on water resources.

Participation in networks

French network of Critical Zone Observatories: Research and Applications: https://www.ozcar-ri.org
Association of water and waste professionals (ASTEE)
Eau du Bassin Rennais, Rennes Métropole

Main collaborations

Université de Rennes, OSERen, Géosciences Rennes UMR 6118, CNRS, Rennes, France
Université de Neuchâtel, Centre d’Hydrogéologie et de Géothermie (CHYN), Neuchâtel, Suisse
Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement, Québec, Canada
Bureau de Recherches Géologiques et Minières (BRGM)

Scientific publications

Abhervé, R., Roques, C., de Dreuzy, J.-R., Van Der Veen, T., Dumaine, L., Chatton, E., Brunner, P., Aquilina, L., and Servière, L.: Projected climate change impacts on groundwater-surface water connectivity in a compartmentalized mountain headwater bedrock aquifer. Water Resources Research, 61(10), https://doi.org/10.1029/2025WR040083, 2025.

Marti, E., Leray, S., Roques, C., Yanez, G.. Poblete, F., Abhervé, R., Tapia, F., Villela, D., and Butikofer, P.: Assessing structural geological controls on groundwater processes in mountain settings: Insights from three-dimensional numerical modeling. Water Resources Research, 61, https://doi.org/10.1029/2024WR037474, 2025.

Figueroa, R., Abhervé, R., Halloran, L., Valley, B., and Roques, C.: Impacts of stress dependent hydraulic properties on hillslope-scale groundwater flow. Geophysical Research Letters, 52, https://doi.org/10.1029/2024GL113428, 2025.

Guillaumot, L., Munier, S., Abhervé, R., Jeantet, A., Le Moigne, P., and Habets, F.: Are regional groundwater models suitable for simulating wetlands, rivers and intermittence ? The example of the French AquiFR platform. Journal of Hydrology, 644, https://doi.org/10.1016/j.jhydrol.2024.132019, 2024.

Floriancic, M. G., Abhervé, R., Bouchez, C., Martinez, J. J., and Roques, C.: Evidence of Groundwater Seepage and Mixing at the Vicinity of a Knickpoint in a Mountain Stream. Geophysical Research Letters, 51. https://doi.org/10.1029/2024GL111325, 2024.

Abhervé, R., Roques, C., de Dreuzy, J.-R., Datry, T., Brunner, P. Longuevergne, L., and Aquilina, L.: Improving calibration of groundwater flow models using headwater streamflow intermittence. Hydrological Processes, 38(6), e15167, https://doi.org/10.1002/hyp.15167, 2024.

Abhervé, R., de Dreuzy, J.-R., Gaubert, J.-Y., Geneau, L., Louaisil, S., Têtu, B., Guéguen, B., Longuevergne, L., Roques, C.,and Aquilina, L.: Intégration du changement climatique dans la gestion de la ressource en eau : exemple du bassin rennais. Techniques Sciences Méthodes (TSM) de l’Association Scientifique et Technique pour l'Eau et l'Environnement (ASTEE), 5, 79-93, https://astee-tsm.fr/numeros/tsm-5-2024/abhervé/, 2024.

Abhervé, R., Roques, C., Gauvain, A., Longuevergne, L., Louaisil, S., Aquilina, L., and de Dreuzy, J.-R.: Calibration of groundwater seepage on the spatial distribution of the stream network to assess catchment-scale hydraulic properties. Hydrological Earth System Sciences, 27(17), 3221-3229, https://doi.org/10.5194/hess-27-3221-2023, 2023.

Vautier, C., Abhervé, R., Chatton, E., Labasque, T., and de Dreuzy, J.-R.: A new method to quantify air–water gas exchanges in streams based on slug injection and semicontinuous measurement. Limnology Oceanography Methods, 18, https://doi.org/10.1002/lom3.10376, 2020.

Vautier, C., Abhervé, R., Labasque, T., Laverman, A. M., Guillou, A., Chatton, E., Dupont, P., Aquilina, L., and de Dreuzy, J.-R.: Mapping gas exchanges in headwater streams with membrane inlet mass spectrometry. Journal of Hydrology, 581, https://doi.org/10.1016/j.jhydrol.2019.124398, 2019.