In the recent years, a growing amount of plans to preserve and manage the water resources has developed all around the globe. Water quality monitoring and assessment programs are used to characterize waters, identify trends over time, recognize emerging problems, and determine effectiveness of water management programs. Complemented by remote sensing, the in-situ data from automated buoys represent an important dataset to model the ecosystem, and subsequently predict water quality. Eutrophication, cyanobacteria blooms and anoxia determine, to a large extend, the water quality issues in reservoirs. In the hydroelectric reservoir of Eguzon (France), an on-going survey has been lunched to predict water quality at short term and its evolution under climate change. An automated buoy measuring meteorological, hydro-physical and biogeochemical parameters (temperature, conductivity, turbidity, oxygen, chlorophyll a, phycocyanin) has been deployed and complemented with bi-weekly in-situ measurements in the reservoir, upstream and downstream. In addition, the coupled hydrodynamic-biogeochemical model GLM-AED2 is being implemented for the reservoir of Eguzon. The reservoir modelling will be integrated in a broader watershed model. The goal of the on-going collaborative research site of Eguzon is to bring together both researchers and stakeholders to progress in the metrology, knowledge and modelling of the water quality of reservoirs.

Primary Presenter: Javier Vidal Hurtado, EDF (javier.vidal-hurtado@edf.fr)

Authors:

Javier Vidal,   ()

Mathieu Caffin,   ()

Fabrice Zaoui,   ()

Yann Guénand,   ()

Samy Morel,   ()

Sébastien Françoise,   ()

Frédéric Hendrickx,   ()

Jean-Philippe Gac,   ()

Clara Garyga,   ()

Raphael Lamouroux,   ()