Recharge processes in karst aquifers inferred from dissolved gases – impact of the vadose zone

Laïna Pérotin, Montpellier, Occitanie, France, Véronique De Montety, Hydrosciences Montpellier, Montpellier, France, Bernard Ladouche, BRGM, Water Dept., New Water Resource & Economy Unit, Montpellier, France, Vincent Bailly-Comte Sr, BRGM Montpellier, Montpellier, France, Cedric Champollion, Sarah Tweed, IRD, Montpellier, France and Jean-Luc Seidel, CNRS HydroSciences Montpellier, UMR 5569, Montpellier Cedex 5, France