Combined Bathymetry and LIDAR model of Dee Estuary

Bathymetry

Geomatics Group operates a number of bathymetry systems, including single beam and multi beam echo sounders, which can be deployed from a range of small boats or larger vessels. This enables us to provide a scalable solution to suit any survey site, including coastal waters, estuaries, rivers, lakes and reservoirs. To discuss your survey site and specific data requirements contact us.

Bathymetry surveys of underwater depth and topography can be integrated with LIDAR elevation models for a multitude of applications including:

  • Reservoir surveys
  • Flood risk modelling
  • Maritime archaeology
  • Dredging surveys
  • Construction planning
  • Hydro-electric impact assessment
  • Environmental monitoring

To learn more about Bathymetry surveys, download our flyer.

Geomatics Group has extensive experience operating bathymetry systems and has carried out reservoir safety surveys on behalf of water authorities, to help them meet statutory requirements. To learn more about reservoir surveys …

Swath bathymetry systems can be linked with a bottom classification system and a survey grade echo sounder to provide accurate bottom topography, suitable for merging with LIDAR data. As both the LIDAR and bathymetry systems operate with reference to the Ordnance Survey National GPS Network, the data can be seamlessly merged across the water line. Side scan imagery of the water body floor can also be collected for analysis.

Specification:

  • Product is a surface of elevation points at 50cm intervals.
  • Data referenced to OS National grid, to allow full integration with other survey datasets.
  • Data map ready and provided in a range of digital formats suitable for GIS and CAD.
  • Bathymetry systems are fully integrated with survey grade positioning and motion referencing unit to allow for the vessel roll, pitch and yaw.
  • Highly accurate data, typically 5cm to 15cm relative to OS National grid.
  • Full range of products available including DTMs and 3D visualisations.
  • A number of different survey vessels available for deployment in most aquatic environments.