During the morning, we held a workshop on cable sensors, exploring different technologies that make it possible to collect measurements along a subsea cable. These measurements can then be used by researchers to monitor, in real time, variables such as water temperature, pressure and salinity. Naturally, there are significant challenges associated with both data collection and measurement accuracy. Requirements are demanding, and even a hundredth of a degree can be important. The technology must also remain reliable over many years of operation.

After lunch, the vessel stopped alongside an ice floe, and it was time for another CTD cast (Conductivity, Temperature and Depth). These measurements are primarily conducted to gather information about the Arctic environment, but they are also used to calibrate the mapping tools onboard.

In connection with the CTD operation, we were given the opportunity to step out onto the ice. Only a limited number of people were allowed ashore at any one time, while the crew maintained a constant lookout for polar bears. Standing on the snow-covered Arctic Ocean was a truly magical experience.

Jonny Lundin
Member of the Polar Connect team