Lake Champs-sur-Marne is one the OSS-Cyano study site, where the new monitoring system can be tested in real conditions of application.
Lake Champs-sur-Marne, a former sand pit, is a small and shallow lake (0.12 km2 of surface and 2.3 m of average depth). The main water input comes from the water table of the nearby River Marne. The lake is located about 20 km east of Paris. It is part of a recreational park, owned by the county Seine-Saint-Denis (CD93). The children of this county regularly use the park for water sports (kayak, sailing, swimming) and other outdoor activities (wall climbing, soccer, camping ...). Unfortunately, swimming in the lake has been repeatedly banned in summer because of potential health risks caused by toxic cyanobacterial blooms.
Based on the data set collected in Lake Champs-sur-Marne, a 3D hydrodynamic model, using data from inlake sensors (see Figure) and from the aerial sensor is implemented in order to forecast short-term changes of the spatial dispersion of cyanobacteria in the water body.
