• The sea is our passion.
  • Rehabilitate and rebuild ports.
  • Innovate for expanding famous ports in France and around the world.
  • « Design & Build » : study, design, build maritime structures in France and around the world.
  • Construct modern technical solutions, from artificial reefs to latest generation marinas.
  • Manage coastal areas, preserve the coast.

Data and Surveys


Topographic surveys

ACRI-IN owns a Trimble GPS that we use to perform topographical surveys of a terrain. The data collected is used to develop a map which graphically represents the elements surveyed such as buildings, roads, vegetation, as well as variations in the level of the land (altimetry). A 3D Digital Terrain Model (DTM) can be generated from the data using software.

To get precision down to the centimeter, we use real time "RTK" surveys: a fixed GPS is placed in a reference (known x, y, and z coordinates) or unreferenced location, which continuously records its position. A mobile GPS connected by radio to the fixed GPS is used for the topographical survey. This combination gives a precision down to 1 cm horizontally and 2 cm vertically.



Bathymetric surveys

ACRI IN owns an Ohmex Sonarmite single beam echo sounder that performs precise bathymetric studies of the ocean floor. The data collected is then used to create a digital terrain model (in 3D).

Using the same principle as for the topographical survey, the sounder is connected to a mobile GPS located on a boat. This combination lets us survey depths over a working range of 0.30 m to 75 m of depth with a sounder precision of +/- 2.5 cm, and a GPS precision on the order of 1 cm horizontally and 2 cm vertically.

Marine Engineering
ACRI-IN's business is to combine R&D with numerical modeling, physical modeling, civil engineering and port engineering, coastal and river management and marine and harbor project management, and project management support. And do this based on the expertise, tools, organization and teams with different backgrounds and experience.
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Variety of skills
ACRI-IN's team has the skills to get involved around the world in areas of marine structure design, civil engineering, port engineering, physical modeling, regulatory filings, marine project management, PM support, technical expertise, implementing prototypes and pilot operations, R&D.
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