Student Participation in the Coordinated Arctic Acoustic Thermometry Experiment (CAATEX)

Speaker: 
Bjørnar Hallaråker Røsvik and Henrik Hellem (bachelor students in Polar Acoustics and Oceanography)
Seminar Date: 
14. February 2020 - 13:15 - 13:45
Location: 
Cinema, Ground Floor, NERSC

As part of the Ocean Technology program at the University of Bergen (UiB) we, Bjørnar Hallaråker Røsvik and Henrik Hellem, were invited by the NERSC Acoustics Group to participate in the CAATEX cruise. Our roles on board was among other to help facilitate the mooring deployments and assist in optical experiments carried out by doctorate student H. Sandven from UiB. We also participated in reporting sea ice conditions into the Arctic Shipbourne Sea Ice Standardization Tool (ASSIST) software.

In addition to this we carried out our own passive acoustic research project were we investigated the soundscape underneath the work stations on various ice flows. Further on, the data was analysed using PAMGuide. This is an analysis tool in MATLAB for acoustic habitat characterisation. We found that the collected sounds were mostly of anthropogenic origin, e.g., sound from the Coast Guard Vessel KV Svalbards engines. We were also intrigued about how well sounds carries through the ice, as we were able to hear foot steps on top of ice more than a meter thick.

This brief presentation aims to elaborate on our experiences onboard the cruice, and some of the learning outcomes + we have some cool photos from the ice.