1. Contribution of 3D coupled hydrodynamic-ecological modeling to assess the representativeness of a sampling protocol for lake water quality assessment
- Author
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Vincent Chanudet, Bastiaan Willem Ibelings, Yann Guénand, Dominique Trevisan, Pierre-Alain Danis, Orlane Anneville, Tristan Harmel, Damien Bouffard, Etienne Dambrine, Frédéric Soulignac, R. E. Uittenbogaard, Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL), Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Federal Insitute of Aquatic Science and Technology [Dübendorf] (EAWAG), Centre d'Ingénierie Hydraulique [Savoie Technolac] (CIH-EDF), EDF (EDF), Géosciences Environnement Toulouse (GET), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Deltares [The Netherlands], Agence Française pour la Biodiversité (AFB), French Agency for Biodiversity (AFB) 15000239European Space Agency (ESA) Scientific Exploitation of Operational Missions element (SEOM) A0/1-8216/15/I-SBoFrench Alpine Lakes Observatory International Commission for the Protection of Lake Geneva (CIPEL) AnaEE-France Department of environment, transport and agriculture (DETA) of the Geneva water ecology service, laboratoire Eau Environnement et Systèmes Urbains (LEESU), AgroParisTech-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de la Recherche Agronomique (INRA), EDF-CIH, Savoie Technolac, Pôle d'Etudes et Recherches AFB-Irstea Hydroécologie des Plans d'eau (France), Agence Française pour la Biodiversité - AFB (FRANCE), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
- Subjects
0106 biological sciences ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Aquatic Science ,Structural basin ,water quality ,01 natural sciences ,Representativeness heuristic ,lcsh:Aquaculture. Fisheries. Angling ,3D modeling ,Ecosystem model ,lakes ,water framework directive ,ddc:550 ,Lake Geneva ,phytoplankton abundance ,lac de genève ,0105 earth and related environmental sciences ,Nature and Landscape Conservation ,Water Science and Technology ,ddc:333.7-333.9 ,lcsh:SH1-691 ,[SDV.EE]Life Sciences [q-bio]/Ecology, environment ,Hydrology ,Ecology ,010604 marine biology & hydrobiology ,modèle 3d ,qualité de l'eau ,Sampling (statistics) ,6. Clean water ,Spatial heterogeneity ,Lakes ,Water quality ,Water Framework Directive ,13. Climate action ,Water framework directive ,Environmental science ,Spatial variability ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology - Abstract
This study deals with the impact of spatio-temporal heterogeneities on the assessment of lake ecological status according to the European water framework directive (WFD). A method, based on three-dimensional coupled hydrodynamic and ecological modeling, is presented to assess the variability of lake ecological status, and to locate the most representative sampling station of Lake Geneva (France/Switzerland). Five variables used in the lake ecological status evaluation were simulated by using the free software Delft3D. The numerical simulation results showed that the simulated ecological status based on chlorophyll a and total phosphorus concentrations measured at the regulatory monitoring station depend on the choice of the sampling date. Results also indicated a strong spatial heterogeneity in ecological status that varies from “poor” to “good” along an East-West gradient. Finally, the numerical simulation results showed that the most representative point of a mean theoretical ecological quality for Lake Geneva would be located in the center of the upper basin, close to the historical sampling station.
- Published
- 2019
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