Ocean Science Bar at Statsraaden Bar & Reception

Hanne Sagen from the Nansen Center and Håkon Sandven from the University of Bergen

“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.

The event is 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 is leading the development of HiAOOS, a groundbreaking observation system yielding largescale 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.

1. How can we remotely observe marine ecosystems in the Arctic Ocean?
Håkon Sandven, Postdoctoral Fellow, Department of Physics and Technology & the SEAS programme, University of Bergen, Norway
2. HiAOOS – An advanced underwater observation system in the Arctic
Hanne Sagen, Research Leader and Senior Researcher, Nansen Environmental and Remote Sensing Center, Norway
Free and open for all!

When and where?

Thursday, 27.11.25, 19:00 – 20:00.

Statsraaden Bar & Reception, Bradbenken 2, Bergen

About Ocean Science Bar

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.