SNO KARST: A French Network of Observatories for the Multidisciplinary Study of Critical Zone Processes in Karst Watersheds and Aquifers

Hervé Jourde (1, 2) , Nicolas Massei (3, 2) , Naomi Mazzilli (4, 5, 2) , Stéphane Binet (6, 7, 2) , C. Batiot-Guilhe (1, 2) , David Labat (8, 2) , Marc Steinmann (9, 2) , V. Bailly-Comte (10, 2) , J.L. Seidel (1, 2) , B. Arfib (11, 2) , Jean-Baptiste Charlier (10, 2) , V. Guinot (12, 2) , Abderrahim Jardani (3, 2) , Matthieu Fournier (3, 2) , M. Aliouache (1, 2) , M. Babic (4, 5, 2) , Catherine Bertrand (9, 2) , P. Brunet (1, 2) , J.F. Boyer (1, 2) , Jean-Pierre Bricquet (1, 2) , T. Camboulive (13, 2) , Simon Carrière (4, 5, 2) , Hélène Celle-Jeanton (9, 2) , Konstantinos Chalikakis (4, 5, 2) , N. Chen (14, 2) , Cybèle Cholet (9, 2) , V. Clauzon (1, 2) , L. Dal Soglio (5, 4, 2) , C. Danquigny (5, 4, 2) , Christian Défarge (6, 7, 2) , S. Denimal (9, 2) , C. Emblanch (5, 4, 2) , Fabrice Hernandez (1, 2) , M. Gillon (4, 5, 2) , A. Gutierrez (10, 2) , Liz Stefanny Hidalgo Sanchez (2, 15) , M. Hery (1) , N. Houillon (16, 2) , Anne Johannet (17, 2) , J. Jouves (11, 2) , N. Jozja (18, 2) , Bernard Ladouche (10, 2) , Véronique Léonardi (1, 2) , G. Lorette (16, 2) , C. Loup (9, 2) , P. Marchand (1, 2) , V. de Montety (1, 2) , Remi Müller (1, 2) , Chloé Ollivier (4, 5, 2) , V. Sivelle (19, 2) , R. Lastennet (16, 2) , N. Lecoq (3, 2) , J C Maréchal (10, 2) , L. Perotin (1, 2) , J. Perrin (10, 2) , M. A. Petre (1, 2) , N. Peyraube (16, 2) , S. Pistre (1, 2) , V. Plagnes (14, 2) , Anne Probst (13, 2) , J.L. Probst (13, 2) , R. Simler (4, 5, 2) , V. Stefani (9, 2) , D. Valdès-Lao (14, 2) , Sophie Viseur (11, 2) , X. Wang (1, 2)

1 HSM - Hydrosciences Montpellier
2 SNO Karst - Service National d'Observation sur le KARST
3 M2C - Morphodynamique Continentale et Côtière
4 AU - Avignon Université
5 EMMAH - Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes
6 ISTO - Institut des Sciences de la Terre d'Orléans - UMR7327
7 Biogéosystèmes Continentaux - UMR7327
8 GET - GET
9 LCE - Laboratoire Chrono-environnement (UMR 6249)
10 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
11 CEREGE - Centre européen de recherche et d'enseignement des géosciences de l'environnement
12 LEMON - Littoral, Environment: MOdels and Numerics
13 LEFE - Laboratoire Ecologie Fonctionnelle et Environnement
14 METIS - Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols
15 LOCEAN - Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques
16 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
17 LGEI - Laboratoire de Génie de l'Environnement Industriel
18 UO - Université d'Orléans
19 GET - Géosciences Environnement Toulouse

Karstaquifers and watersheds represent a major source of drinking water around the world. They are also known as complex and often highly vulnerable hydrosystems due to strong surface-groundwater interactions. Improving the understanding of karst functioning is thus a major issue for the efficient management of karst groundwater resources. A comprehensive understanding of the various processes can be achieved only by studying karst systems across a wide range of spatiotemporal scales under different geological, geomorphological, climatic, and soil cover settings. The objective of the French Karst National Observatory Service (SNO KARST) is to supply the international scientific community with appropriate data and tools, with the ambition of (i) facilitating the collection of long-term observations of hydrogeochemical variables in karst, and (ii) promoting knowledge sharing and developing cross-disciplinary research on karst. This paper provides an overview of the monitoring sites and collective achievements, such as the KarstMod modular modeling platform and the PaPRIKa toolbox, of SNO KARST. It also presents the research questions addressed within the framework of this network, along with major research results regarding (i) the hydrological response of karst to climate and anthropogenic changes, (ii) the influence of karst on geochemical balance of watersheds in the critical zone, and (iii) the relationships between the structure and hydrological functioning of karst aquifers and watersheds.

Mots clés: karst aquifers

Domaines: Milieux et Changements globaux; Environnement et Société; Interfaces continentales, environnement; Hydrologie

Hervé Jourde, Nicolas Massei, Naomi Mazzilli, Stéphane Binet, C. Batiot-Guilhe, et al.. SNO KARST: A French Network of Observatories for the Multidisciplinary Study of Critical Zone Processes in Karst Watersheds and Aquifers. Vadose Zone Journal, 2018, 17 (1), ⟨10.2136/vzj2018.04.0094⟩. ⟨hal-01966716⟩