NORBIT Subsea specialises in ultra-compact wideband multibeam sonars for subsea and surface platforms.

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Acoustic Mapping of Coastal Areas in the Arctic Zone

The ACCES project: De-icing of the Arctic coast: new challenges and opportunities!

Read as PDF HERE


Arctic coastal regions comprise 34% of the global coastline, and serve as an important breeding and foraging grounds for fish, birds and marine mammals. Providing valuable ecosystem services vulnerable to climate induced stressors are among the most threatened ecosystems globally.

The western coast of Spitsbergen is under warm Atlantic current influence, while the eastern coast is much colder with dominant Arctic waters. Monitoring of seabed morphology and habitats of both sites help to predict future scenarios of an ice-free coast.


  • NORBIT integrated wideband multibeam sonar (iWBMS) 400kHz
  • Swath coverage 5°-210°
  • Resolution 0.9°x1.9°
  • Weight 9kg
  • Power consumption 60W (might be powered with 12-24VDC)
  • POSMV antennas mounted on the pole with MBES
  • Precise and flexible integrated solution with navigation post-processing capability

Spitsbergen, exploration of the East Coast

Agardhbukta, the East Coast of Spitsbergen


Multibeam data processing and basic output layers for habitat mapping

Multibeam sonar data segmentation for Agardhbukta area1, 2019

Seabed classification results

Spitsbergen, areas mapped by NORBIT during MAKAK and ACCES