Abstract
This paper presents preliminary results from two karst systems belonging to the “Jurassic Karst” observatory in the French Jura Mountains. The sites are characterized by localized and diffuse recharge. Physicochemical monitoring was performed at the karst outlet (springs), as well as in the unsaturated zone (cave and epikarstic spring). During two contrasting flood events, water level, temperature, electrical conductivity, dissolved organic carbon, turbidity, and dissolved oxygen were recorded at high frequency and compared. These preliminary results allow to propose a conceptual model for both sites. It was possible to distinguish specific autogenic and allogenic recharge mechanisms and to characterize the respective contribution of the saturated and unsaturated zones.
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Acknowledgments
This work was financed by the Région Franche-Comté and the BRGM. We thank Bruno Régent for his energy and technical expertise during the installation of the field sites, and the Speleological Group of Clerval Baume-les-Dames for their help during the instrumentation of the Fontenotte cave.
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Cholet, C., Steinmann, M., Charlier, JB., Denimal, S. (2015). Comparative Study of the Physicochemical Response of Two Karst Systems During Contrasting Flood Events in the French Jura Mountains. In: Andreo, B., Carrasco, F., Durán, J., Jiménez, P., LaMoreaux, J. (eds) Hydrogeological and Environmental Investigations in Karst Systems. Environmental Earth Sciences, vol 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17435-3_1
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DOI: https://doi.org/10.1007/978-3-642-17435-3_1
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