The Undersee FerryBox is a state-of-the-art oceanographic instrument used for measurement of various water quality parameters such as temperature, salinity, dissolved oxygen,chlorophyll-a and turbidity. Recently, the Norwegian Institute for Water Research (NIVA) installed the Undersee FerryBox system at their Solbergstrand research facility to monitor the marine environment in the Oslofjord. A NIVA Norwegian Ships Of Opportunity Program (NorSOOP) FerryBox was operated alongside and validation samples and reference instruments were used as a benchmark.       This study aimed to evaluate the performance of the Undersee FerryBox system at the NIVA research facility and compare it with other oceanographic instruments with similar functions. To achieve this, we conducted multiple trials and analyzed the data obtained from the Undersee FerryBox system to determine its accuracy and reliability. Our results showed that the Undersee FerryBox system performed well and delivered reliable measurements when compared to the reference data. The calibration of the individual sensor showed the importance of regular calibration with proper reference material. Such tests will document the instrument performance and detect where to improve the system. The system worked continuously for extended periods, collecting and analyzing data from the trials. In conclusion, our study highlights the reliability and user-friendliness of the Undersee FerryBox system and graphical interface for monitoring water quality parameters in the marine environment. The system accuracy and portability make it a valuable tool for researchers and environmental managers seeking to understand and maintain the health and sustainability of the marine environment.

Primary Presenter: Tiago Cristóvão, Undersee (tiagocristovao@undersee.io)

Authors:

Kai Sørensen, NIVA  (kai.sorensen@niva.no)

Dylan Denizon, Undersee  (Dylandenizon@undersee.io)

Pedro Lopes, Undersee  (pedrolopes@undersee.io)

Pierre Jaccard, NIVA  (pierre.jaccard@niva.no)

Andrew King, NIVA  (andrew.king@niva.no)