Marine Geophysical Survey

Bowman’s marine geophysical surveys look beneath the riverbed or seafloor to locate obstructions, including timber piles to ferrous and non-ferrous debris buried well below the mudline.

We layer multiple sensor types to detect obstructions and relict infrastructure, then determine their approximate location and depth of embedment. Whether a marine geophysical survey is needed for development work or research, Bowman has the equipment and personnel to provide an accurate subsurface picture on any timeline. Our sub-bottom profiling equipment can also locate pipelines and electrical cables, saving time and money on utility crossing surveys.

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Marine Geophysical Survey Capabilities

No single sensor captures everything beneath a riverbed or seafloor. Bowman layers sonar, magnetometry and sub-bottom profiling technology to confirm what’s really below so surprises stay out of the schedule and budget.

  • Swath Bathymetry
  • High-Resolution Imaging Sonar (Side Scan, Synthetic Aperture)
  • Marine Magnetometry & Gradiometry
  • Non-Ferrous Metal Detection
  • Sub-Bottom Profiling
  • Obstruction Location & Depth-Of-Embedment Analysis

The Equipment Behind the Data

Bowman’s marine geophysical survey vessel carries multibeam and side scan sonar for bathymetry and imaging, while a set of portable and integrated sub-bottom profiling systems handle subsurface detection, including pipelines and electrical cables buried beneath the mudline. Running this equipment together in a single deployment keeps utility crossing surveys and other subsurface investigations on schedule.

  • KingFisher 3025 GFX Autonomous Survey Vessel
  • Norbit WINGHEAD X Multibeam Sonar with Backscatter
  • EdgeTech 4025 Side Scan Sonar
  • EdgeTech 3400 Portable Sub-Bottom Sonar
  • Innomar SES-2000 Sub-Bottom Profiler
  • NORBIT iSBP Integrated Sub-Bottom Profiler

Project Highlights

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