Workshop on Acoustic marine observing systems in the Arctic Ocean at The Nansen Center

There are many observing systems under development for use in the Arctic. Acoustic methods are
used in several of these systems such as acoustic tomography/thermometry, transmission from
underwater platforms, communication and navigation of floats and gliders under the ice-cover.

This will be addressed in a workshop at

Nansen Environmental and Remote Sensing Center, Thormøhlensgt 47, Bergen on

March 11. at 13:00 to 16:00

Methods where acoustics is used to observe the marine environment directly will be presented as well as an infrastructure to support navigation and use of gliders and AUV operations under sea ice.

The workshop program:

13:00: Director Stein Sandven (Coordinator of the EU ACOBAR project), Introduction

13:15 : Lee Freitag, Woods Hole Oceanographic Institution, MA, US: Acoustic Communications Research at the Woods Hole Oceanographic Institution. (Nansen Guest Lecture)

14:15: Jens Abrahamsen, NAXYS AS: Subsea Leak and Condition Monitoring by Passive Acoustic Senor Arrays and Advanced Signal Processing.

14:45 – 15:00: Coffee Break

15:00-15:30: Erik Eknes, Coda Octopus 3D-mapping of Iceberg and Ridges with the Echoscope sonar.

15:30 – 16:00: Hanne Sagen, The Fram Strait acoustic system for ocean observations and navigation of gliders.

The Nansen Guest Lecture by Senior Engineer Lee Freitag from Woods Hole Oceanographic Institution will be 45 minutes. Each of the following presentations will have 20 minutes for the talk and 10 minutes for questions and discussion.

The workshop is organized under the EU ACOBAR (Acoustic technology for Observing the interior of the Arctic Ocean) project, coordinated by the Nansen Center. Further information about ACOBAR is found at: