The Grand Port Maritime de La Rochelle equips its new hydrographic cruiser with a multibeam system

Published on 8 June 2021
The mission & the problem

The growing needs of the Port, in particular to cope with the steady increase in its traffic, have prompted its bathymetric service to equip itself with a new hybrid propulsion cruiser and a modern multibeam bathymetry system.

This set offers many advantages:

  • Increased productivity in order to map larger areas;
  • The production of better quality data while minimizing the carbon impact of this activity.

In 2019, the Grand Port Maritime de la Rochelle, through a public market, chose the company Cadden for the supply and installation of latest generation hydrographic equipment in order to equip its new hybrid propulsion cruiser (thermal and electric).

The Cassiopée hydrographic boat in the Grand Port Maritime de La Rochelle - © Thierry Rambaud - PALR
The solution

In collaboration with the company AluMarine, selected for the construction of this new boat, Cadden was able to provide a complete multibeam bathymetry system with study, integration, installation and training services.

This system includes an R2Sonic 2022 multibeam sounder, integrated directly into the hull, an SBG Ekinox2-I Navsight inertial unit, a hull celerimeter, the Hypack Hysweep software suite for data acquisition and processing and IT (PC and 2 screens).

The equipment offered and the services provided fully corresponded to the expectations of the Port and its hydrographers.

CADDEN also supports the large port of La Rochelle also over the long term with its technical support

Une nouvelle vedette hydrographique avec système multifaisceaux pour le Grand Port Maritime de La Rochelle

In use since early 2020, the R2Sonic 2022 multibeam sounder is proving to be a tool particularly suited to the needs of the Grand Port Maritime de la Rochelle. The resolutions obtained by the multibeam system allow the production of precise bathymetric plans for its users such as the harbor master’s office, port service and dredges.

« In this, Cadden clearly identified the demand for GPMLR during the tender visit. In practice, acquisition times are reduced while data processing is ultimately simpler and safer», says Laurent Chognot, hydrographer at the Port of La Rochelle.


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