EHP installed the stations in March 2020 to three different rivers: Tarvasjoki, Vähäjoki and Paattistenjoki. Tarvasjoki and Vähäjoki are intensely monitored and data from Paattistenjoki is used as a reference.
The monitoring stations measure water level, temperature, turbidity and conductivity. Stations are powered by solar panels and batteries and the measurements are done once in an hour. Based on EHP’s experience, installations to the river could be done so that the stations can be operated throughout the year also when the river freezes. Installation method takes into account also easy maintenance of the sensors: sensors are easy to lift from the river for regular cleaning.