PhD student
April 2025 – May 2028
Title of the thesis:
Development and sensitivity analysis of a coupled hydrogeophysical model at the watershed scale (InHyBa Project)
Supervisors:
Nolwenn Lesparre – CNRS Researcher, ITES, University of Strasbourg
Arthur Vidard – Researcher, LJK, INRIA Grenoble
Keywords:
Hydrogeophysics · Distributed hydrological modeling · Groundwater–surface water interactions · Global sensitivity analysis · Inverse modeling · Mountain catchment
Quick subject description:
My PhD is part of the InHyBa project, funded by the CNRS MITI “Prime 80” program, and contributes to the ANR CASH initiative focusing on hydrogeophysical coupling at the watershed scale.
The objective of my work is to improve the NIHM (Numerically Integrated Hydrological Model) developed at ITES to simulate coupled exchanges between the unsaturated and saturated zones. I aim to quantify how hydrological parameters influence geophysical signals such as magnetic resonance sounding (MRS) and gravimetry.
This project will apply global sensitivity analysis and inverse modeling to identify the key parameters controlling groundwater dynamics and observable geophysical responses. The model developments and analyses will be validated on the Strengbach watershed (Vosges Mountains, France) — a well-instrumented catchment belonging to the OZCAR observatory network.
My work bridges hydrology, geophysics, and data-driven modeling, integrating field observations, physical modeling, and numerical simulation to improve understanding of mountain water resources under changing climatic conditions.