Contribution of groundwater observatories to the monitoring of some key hydrodynamic and geochemical processes in the critical zone

Bruno Mougin (1) , Yvan Caballero (1) , Jean-Christophe Maréchal (1) , Nadia Amraoui (1) , Vincent Bailly-Comte (1) , Jean-Baptiste Charlier (1) , Laure Ducreux (1) , Adrien Selles (1) , Benjamin Lopez (1) , Jérôme Nicolas (1) , Jean-Jacques Seguin (1) , Anne Winckel (1)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)

Groundwater can represent a boundary condition for the dynamics of water into the critical zone. Groundwater level fluctuations influence several hydrodynamic and geochemical processes in the non-saturated zone such as, droughts and floods, rock-water interactions, surface water and soils quality, climate variability and change impacts… Several different types of groundwater observatories will be presented that allow the monitoring of some of these processes in different types of hydrogeological contexts over France, overseas and India. The data acquisition, storage and dissemination strategies and issues, and the scientific questions that can be explored using these observatories will be discussed.

Mots clés: rock-water interaction; data base; global change; Groundwater; observatories

Domaines: Planète et Univers [physics]; Sciences de la Terre; Hydrologie; Sciences de l'environnement; Milieux et Changements globaux

Bruno Mougin, Yvan Caballero, Jean-Christophe Maréchal, Nadia Amraoui, Vincent Bailly-Comte, et al.. Contribution of groundwater observatories to the monitoring of some key hydrodynamic and geochemical processes in the critical zone. The ILTER & LTER-France joint conference, Oct 2017, Nantes, France. ⟨hal-01581852⟩