Nutrient Dynamics Buoy (Ndb) Sensor Data and Calibration Report
DOI:
https://doi.org/10.47363/JEESR/2020(2)134Keywords:
Nutrient Dynamics Buoy, Sensor Data, Calibration ReportAbstract
The Nutrient Dynamics Buoy (NDB) is currently based on a multi-parameter sonde with 7 sensors and includes an integrated Nitrate Sensor and a Phosphate sensor. It also includes a reference PAR1
sensor mounted at the water surface as well as a submersible PAR1
sensor that is immersed at 2m below the water surface together with the mult-parameter sonde, Nitrate sensor and Phosphate sensor.
The multi-parameter sonde monitors the temperature, depth, conductivity, pH, turbidity, chlorophyll and dissolved oxygen. It also has an anti-fouling wiper mechanism that removes any debris that may accumulate on the sensors during extended deployment.
The immersed PAR1 sensor also has an anti-fouling wiper mechanism, while the reference PAR1 sensor at the surface has a cover that is opened just before the PAR1 measurements are made and then closed after the measurements have been taken.
The readings for these sensors were recorded by a logger mounted in the NDB at the LV1 mooring at station 750 in Lake Ontario. This test report summarizes these results for the deployment during September of 2010.
The calibration results for the sensors are included in the appendices.
1 PAR = Photosynthetically Available Radiation measured between 400nm and 700nm with a constant quanta response.
