A stream under surveillance

The governmental research organisation CNRS has installed a hydrometric station here that measures the stream's water levels and flow rate. You can easily see the graduated vertical scale. This is complemented by a pressure probe connected to a data recording centre. This monitoring equipment is part of a series of stations in the Vallée Borgne. The data they record have shown the important role played by tancats (cf. Precious reserves) in regulating water flow. They also confirm how effective the various measures are that have been taken to rehabilitate these structures and maintain riverbank vegetation.