Invitation to tender: Automated water quality measurements upstream of the Seine estuary

The Seine-Aval GIP has a continuous measurement network of the main parameters of the water quality of the Seine. This network, since 2012, measures conductivity, temperature, dissolved oxygen concentration, turbidity and fluorescence related to chlorophyll A at 5 stations located in the estuary, between the mouth and Rouen (https://www.seine-aval.fr/synapses). This network is part of the project, funded by the CPIER Seine Valley, PHRESQUES (https://www.seine-aval.fr/phresques/).
The main objective of this contract is to install and maintain an autonomous multiparameter measurement system (power and communication) over a period of 2 years, upstream of the estuary (between Poses and Vernon).