Bathymetry is the science of measuring water depths to determine the topography of the bottom. Bathymetry refers to mapping of water depth. A complete bathymetry system includes a means of measuring the water depth (echo-sounder) and a means of positioning said measurement (DGPS or RTK).
From simple single beam bathymeters to heliborne georadar and state-of-the-art swath systems, Geophysics GPR is equipped to meet all your water depth mapping requirements.
The different applications of bathymetry are as follows:
- Hydrographic Surveys for navigational safety;
- Production of Digital Terrain Models (DTM) of the bottom for engineering design (tunnels, pipelines, bridges);
- Dredging control;
- Hydro-electric projects;
- Geotechnical and engineering studies.
For more information, please contact our Marine Survey Team.
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Bathymetric sounders or bathometers operate by emitting sound vibrations, detecting their echo after bouncing on the bottom and determining the travel time. The information thus provides a horizontal profile which can be plotted as 2D plan maps/charts or gridded for 3D representations of the bottom.
A convention using color codes can map the seabed in a standardized way (General Bathymetric Chart of the Oceans or GEBCO, established under the auspices of the Intergovernmental Oceanographic Commission and the International Hydrographic Organization).