Surveying port and harbour environments



Michael Giese, RESON, Slangerup, Denmark


Over the years, RESON’s series of SeaBat Multibeam sonar systems have gained a worldwide reputation for their capability to provide high-resolution bathymetry and imagery data in real time for extremely detailed representation of underwater features and seabed conditions. SeaBat 8125 and 8101 have been the preferred sonar solutions among international harbour authorities for a decade. RESON have now built on this international success, and have launched the SeaBat 7000 range. These state-of the art, wide beam multi-beam sonar systems are highly sophisticated and their modular system includes true time-delay beam forming, advanced bottom detection with dynamic focusing, long range and high resolution performance. The new range of SeaBat Multibeam sonar systems are simple to operate, and offer unparalleled hydrographic survey solutions. The range of equipment enables many of the tasks necessary for the efficient operation of harbours and ports to be completed at the same time as other annual dredging or survey inspections.

Securing access to the ports

SeaBat can detect foreign objects under the water level. This is an invaluable tool in any port or harbour, as it ensures reliable data on the depth rating of the seabed – a must for any owner of large vessels entering a port. Sediment changes affect the depth of channels, so classification of sediment in our harbours and ports is essential to their smooth operation. The very nature of the ports, with constant traffic and tidal flows, will bring with it increases in the depth of sediment on the harbour bottom. Knowledge of the composition and depth of sediment is essential to ensure the safe navigation in and out of our ports and harbours.

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