Multibeam Water Column Data
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On behalf of the Canadian Hydrographic Association, presented live by Jonathan Beaudoin on the 26th September 2023 12:00 EDT
Multibeam sonars have been around for a long time and technology has improved to allow for acquisition and processing of water column imagery. But what is multibeam water column imagery? How does it work and what can it be used for?
Multibeam Backscatter
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On behalf of the Canadian Hydrographic Association, presented live by Jonathan Beaudoin on the 2nd of November 2023 12:00 EDT
Nowadays it’s becoming more common that multibeam seabed imagery, aka backscatter, is a deliverable alongside bathymetry. Though multibeam seabed imagery has been a standard feature with modern multibeam systems for quite some time, there are some key differences in how you configure systems, plan and execute surveys and also how you process the data. Join us in a webinar where we review a light theoretical introduction on the topic as well as a sampling of field and processing best practices.
Accuracy in Theory and Practice
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On behalf of the Canadian Hydrographic Association, presented live by Jonathan Beaudoin on the 26th of January 2024 at 10:00am EST
It’s incredibly important as a hydrographic surveyor to understand if our measurements are fit for purpose. One key determinant of fitness of measurements is their accuracy, or uncertainty, as we hear more often. It seems, however, that there’s nothing more uncertain in surveying than the uncertainty of our measurements. We have mathematical tools that tell us the uncertainty levels we should, in theory, be able to achieve. But as is often said “In theory there is no difference between theory and practice. In practice, there is.” Just how is it that surveyors go about ensuring they are achieving desired accuracy levels in practice? Join us for a lighthearted webinar where we discuss the difference between achieving accuracy in theory and achieving it in practice.
