- On 20th May 2021
- In General, Sediment Management, Surveying
- By Izaak
Exciting news! Last month we carried out our first multi-beam bathymetry survey of 2021! This took place along the River Colne, covering approximately 28km over two days from Brightlingsea Marina to Colchester and back. This work formed part of a trial of the equipment and processing tools, brought to us by Norbit systems. The multi-beam bathymetry system was set up on our Arvor survey boat the Exo Explorer. The trial was used to determine whether this system was viable with our existing equipment and knowledge and I’m pleased to say it passed with flying colours!
What is multi-beam bathymetry?
Multi-beam bathymetry allows us to cover larger areas and in a shorter space of time in comparison to single beam bathymetry. Multi-beam uses a multi-swath echo sounder sending out acoustic ‘pings’ along a larger area than single beam systems, allowing us to see features on the waterbed much clearer and more accurately. For example, we were able to identify subtle bed forms and even some car tyres on the waterbed!
This work forms part of our long-standing relationship with Brightlingsea Harbour Commissioners (BHC) and other clients in the wider Colne estuary, aiding harbour authorities and other water users to determine the areas of sediment accumulation and develop informed dredging schedules.
We will use the experience we have gained from this trial to further implement this technology into our services, which will allow us to survey larger and more complex water bodies faster and more efficiently than when using just single beam technology.
If you need a waterbody, harbour or marina surveying then remember we are now available to conduct in situ Bathymetry and Water Quality Surveys.
And you can contact us via email (email@example.com), the form on our Contact Page or on any of our social media accounts! (Twitter, Facebook). Also, if you haven’t already, make sure you check out our YouTube channel and subscribe! We’re posting an array of videos from project updates to tutorials and more! Visit our YouTube channel here: Exo Environmental YouTube.