Autonomous vessels
| Name | Ran | Semla | Kringla |
| Manufacturer | Kongsberg | Kongsberg | Offshore Sensing |
| Model | AUV Hugin | Seaglider | Sailbuoy |
| Owner | University of Gothenburg, Department of Marine Sciences |
University of Gothenburg, Department of Marine Sciences |
University of Gothenburg, Department of Marine Sciences |
| Propulsion | Batteries, propeller | Battery, buoyancy | Wind, sail |
| Endurance | 24+ hours | 6+ months | 6+ months |
| Speed | 2 – 6 kn | 0.2 – 0.5 kn | 1 – 3 kn |
| Range | 500+ km | 4000+ km | 8000+ km |
| Length | 7 m | 2 m | 2 m |
| Weight | 2000 kg | 52 kg | 60 kg |
| Sensors, parameters | – Multibeam echosounder – Subbottom profiler – Sidescan sonar – Salinity, temperature, pressure, – ADCP (currents) – CO2, pH, oxygen, nitrate, florescence, turbidity, water samples |
– Salinity, temperature, pressure – Dissolved oxygen – Fluorometer/backscatter/turbidity – Photosynthetically Active Radiation (PAR) |
– Salinity, temperature – wind speed and direction, air temperature and barometric pressure |
