Testing OB-5

A lot of progress was made today. All of the sensors have been attached to the mast and connected to the buoy.

 

 

With the connections made we were then able to attach the mast to the buoy.

The next step was calibrating the ozone sensor. In order to accurately interpret the ozone data the ozone sensor inside the buoy needs to be calibrated. The blue box on the deck is an ozone generator. The generator is plumbed into the ozone sensor intake port on the mast. The generator delivers a known concentration of ozone to the sensor and a value is given. Once several values are measured a calibration curve is created. This curve will be used later for data interpretation. The air cylinder is plumbed into the generator to make sure that no ozone present in the ambient air is used during the calibration. The carbon dioxide sensor has standard gases inside the buoy. In every sampling cycle one of the standard gases is sampled before the ambient air measurement. The bromine oxide sensor is calibrated prior to deployment.

If you would like to track the Louis S. St-Laurent you can click here.

 

 

 

 

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