Mapping Seabeds

Hydrographic Survey

Geosonic delivers high-resolution hydrographic surveys to map seabed topography and water depths with precision. We support engineers, port authorities, and marine contractors with bathymetric models integrated with tide and datum control, enabling safe navigation, dredging campaigns, and the design of coastal and offshore infrastructure. Our surveys provide reliable data to optimise construction planning and reduce operational risk.

Typical services provided include:

• Single-beam echo sounder (SBES) surveys
• Multibeam echo sounder (MBES) bathymetry
• Tide gauge deployment and tidal datum determination
• Coastal and nearshore bathymetric mapping
• Dredge support and post-dredge verification
• Navigation channel and port surveys
• Volume calculations for dredging and reclamation
• Digital terrain models (DTM) and surface grids
• Chart production for safe navigation
• Integration of hydrographic data with GIS/CAD deliverables