Rhône River Intrusion and Interflow Dispersion of Nutrients and Organic Matter in Lake Geneva (RIDLE)
The project in a nutshell:
The RIDLE project investigates the Rhône River’s influence on nutrient and organic matter distribution in Lake Geneva, focusing on the transition zone near the Rhône delta. By studying the interflow layer, the project aims to differentiate between riverine (allochthonous) and lake-internal (autochthonous) contributions to nutrient cycling. Using a multidisciplinary approach, including sampling campaigns on the LéXPLORE platform, chemical analyses, and isotopic techniques, researchers analyze key parameters such as dissolved inorganic carbon, total organic carbon, and stable isotopes. Isotopic analysis helps trace water mass origins and mixing dynamics, while meteorological data provide insights into how external conditions affect interflow depth and dispersion patterns.
Team members
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- Torsten Vennemann, Professor, Faculty of Geosciences and Environment, UNIL
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- Lucia Mottet, Master’s student, Faculty of Geosciences and Environment, UNIL
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- Samuel Lutz, Master’s student, Faculty of Geosciences and Environment, UNIL
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