05/08/2026
When planning offshore wind farms, submarine cable routes, ports, or other marine infrastructure, understanding the seabed is only part of the investigation.
In many cases, engineers also need to understand what lies beneath the seabed.
That's where Sub-bottom Profilers (SBP) and Marine Magnetometers come in. While they are often mentioned together, they answer very different questions and serve different purposes during offshore site investigations.
We've put together a quick comparison to help you understand when each technology is typically used.