ABHERVE Ronan

Scientist at INRAE / SAS 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, with an interest in associated critical zone sciences: climatology, geomorphology, geophysics, geochemistry, ecohydrology, etc. Keywords: numerical modeling, bedrock aquifers, headwaters, river intermittency, climate change, water resources

Member of the "Ressources" research group of the SAS research unit
Scientist

Activities

Research

Modeling the quantity-quality interactions of water in the context of global change.

My research focuses on hydrology, specifically hydrogeology, the study of groundwater. Using hydro(geo)logical numerical models, I simulate the water cycle at the scale of headwaters in watersheds. These tools allow to represent the dominant processes driving water quantity and quality dynamics, such as groundwater flow and the associated nutrient transfers (carbon, nitrogen, phosphorus). In parallel, field data allow me 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 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

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)

Productions

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.