Sonar for Enhanced Mammal Detection23/05/2012
|Gemini SeaTec, UK, provides an early warning of the presence of marine mammals in the vicinity of marine current turbine structures. The Gemini SeaTec system has been successfully field-tested on the Marine Current Turbine (MCT) SeaGen installation in Strangford Lough, Northern Ireland, overseen and tested by the Sea Mammal Research Unit (SMRU) Ltd.|
The latest version of Gemini SeaTec system includes improved software algorithms for analysing moving marine life targets according to their size, shape and swimming behaviour. Targets are categorised using a traffic light system, indicating the probability that a moving target is a marine mammal.
‘Possible’ (green) targets are the correct size and shape; ‘Potential‘ (amber) denotes upgraded ‘Possible’ targets that also have a path that suggests the object is not moving with tidal drift. ‘Probable’ (red) targets are upgraded from ‘Potential’ when they have a high probability of being a marine mammal. Using this scheme also allows the software to eliminate a large number of false targets such as marine debris moving passively with the tide and fish that are both too small and identified as part of a group.
A visual proximity alarm can be set to alert a human observer to the presence of a target that has a high probability of being a marine mammal. This can aid in precautionary shutdown decisions, where necessary.
Reports can also be generated that reference presumed ‘marine mammals’ and display their path history and classification status at each step. These reports are cross referenced with visual log data for effective post-hoc analysis and can be used for analysing marine mammal behaviour as part of environmental impact assessments.
Gordon Hastie from SMRU Ltd, comments that the development of the Tritech Gemini has allowed the organisation to effectively measure the close range interactions between marine mammals and tidal turbines in a more efficient way than was previously possible.
Read more about:
sonar Tidal data software Current
Supplier: Tritech International Ltd
More news from this supplier:
Software Updates for StarFish Side-scan Sonar
Moog Acquires Tritech International
Tritech North America Opens
Enhanced Port Survey Operations
StarFish Aids Search and Rescue Applications
Multi-beam Sonar for DPS Offshore Vehicles
Network Subsea Data Streaming
4,000m Gemini Imaging Sonar
Tritech Strengthens Customer Support
Tritech StarFish Imaging Systems
Seatronics Invests in Sonar Equipment
Connecting To Tomorrow’s Talent
International User Group Conference in France
Network RTK Repeater Using Radio
Decom North Sea Lunch & Learn Event
Osiris Projects Names Custom Build Survey Vessel
Donizeti Carneiro to Head Brazil Operations
GeoSwath Plus Used for Inland Waterways
Rapid Environmental Assessment Exercise Collaboration
Medicine Hat Aquatic Rescue Team Completes Hummingbird Training
Demo of RIEGL Airborne Bathy Scanner in Camcopter UAV
It's not an AUV but a UAV. So an unmanned vehicle, but in the air instead of underwater. This movie shows a demonstration of the bathymetric laser scanning capabilities of the RIEGL VQ-820-GU hydrographic airborne sensor in reality. For more information on the technical side, please see the news release on Hydro International.