Light, sound, and the changing Arctic Ocean
The Arctic Ocean is changing rapidly, but observing these changes beneath its ice cover is extremely difficult. Moving beyond traditional methods, optical sensing and acoustic thermometry can allow us to see how ocean temperature and marine ecosystems are changing in the Far North.
Main content
About the event (held in English)
The Arctic is the most rapidly changing region on the planet, with increasing temperatures and declining sea ice cover. Sea ice loss amplifies the temperature increase and changes the light conditions that form the foundation of marine ecosystems. But the very presence of sea ice also makes it incredibly challenging for us to use conventional methods to observe changes in marine ecosystems and ocean temperature.
The Nansen Center and UiB is leading the development of a groundbreaking underwater observation system for the Arctic Ocean together with partners in Norway, USA and Europe. The system provide observations of light, temperature, and ocean currents as well as large-scale estimates of ocean temperature and geo-positioning of autonomous platforms.
In this event, two researchers talk about how innovative optical and acoustic techniques can be used to observe changes in primary production and ocean temperature in these inhospitable and largely unexplored waters.
- How can we remotely observe marine ecosystems in the Arctic Ocean?
Håkon Sandven, Postdoctoral Fellow, Department of Physics and Technology/Bjerknes Centre for Climate Research/SEAS programme, University of Bergen - HiAOOS – An advanced underwater observation system in the Arctic
Hanne Sagen, Research Leader, Nansen Environmental and Remote Sensing Center
Date & time
November 27th, 2025, 19.00-20.00
Free and open for all!
Organisers
Ocean Science Bar is a collaboration between Statsraad Lehmkuhl, the University of Bergen, the Institute of Marine Research, NORCE, and the Nansen Center. At the Statsraaden Bar & Reception you are welcome to enjoy highlights from marine research and ocean related issues in informal and relaxing surroundings.
