Projects - cosma subsea reality. revealed

Detecting and identifying dumped munitions at 95 m in the Baltic Sea

At 95 m in the Baltic Sea, Cosma combined photogrammetry, magnetometry and side-scan sonar to detect, locate and identify dumped munitions in one AUV survey.

Dense aggregations of Asterias rubens starfish on the seabed beneath the FLOATGEN floating wind turbine.

Seabed digital twins beneath a floating offshore wind turbine

At SEM-REV, Cosma deployed three tetherless AUVs beneath FLOATGEN to map 2.6 ha of seabed, monitor biodiversity and support AI-assisted species mapping.

High-resolution reconstruction of the subsea cable crossing rocky and coarse-sediment seabed at the OPEN-C Paimpol tidal site.

Seabed mapping in strong currents and low-visibility conditions

At OPEN-C Paimpol, Cosma used multiple AUVs in strong tidal currents and low visibility to map benthic habitats and support environmental permit renewal.

Centimetre-scale photogrammetric view of a submarine pipeline crossing the seabed at the Toulonnais site in Monaco.

Digital baseline of Monaco’s ecological restoration site and underwater heritage

Across 2.5 hectares, a centimetre-scale record makes it possible to measure infrastructure, track ecological change and revisit the same seabed over time.

Close-up photogrammetric view of Mareterra’s caisson wall showing engineered components and biodiversity enhancement structures.

High-resolution digital twins of Monaco’s vertical coastal infrastructures

Across 2.5 hectares, centimetre-scale photogrammetry captures benthic habitats, subsea infrastructure and underwater heritage to track change over time.

Cosma autonomous underwater vehicle deployed beside drifting ice during the Greenland 2026 Arctic seabed survey.

Arctic benthic habitats during the Greenland 2026 scientific expedition

At 83°N, autonomous underwater robots captured centimetre-scale views of coastal ecosystems, creating a repeatable baseline to monitor biodiversity and ecosystem change.

Marine species recorded during Cosma’s benthic survey for the Pennavel floating offshore wind farm.

Large-scale benthic mapping and AI-assisted analysis for the Pennavel floating offshore wind farm, France

Cosma acquired 380,000 georeferenced images 10–15 nautical miles offshore, at 90–100 m depth, enabling AI-assisted detection of species of interest.

High-resolution seabed imagery used by Cosma to detect the invasive seagrass Halophila stipulacea in Greece.

High-resolution digital twins to support marine protected area management in the Pagasetic Gulf

For Monaco Explorations, Cosma deployed lightweight autonomous systems to map benthic habitats and demonstrate new tools for MPA monitoring.

Close-up view of the submarine outfall surrounded by Posidonia oceanica seagrass.

High-resolution digital inspection of a submarine outfall within Posidonia seagrass meadows

At Île du Levant, Cosma combined sonar, robotics, photogrammetry and AI to inspect a submarine outfall and map nearby Posidonia oceanica habitats at centimetre scale.

Centimetre-scale orthomosaic showing abandoned ropes and a submerged mooring block within benthic habitat in Théoule-sur-Mer.

AI-assisted mapping of underwater waste for environmentally responsible marine decommissioning

Across 33 hectares in Théoule-sur-Mer, sonar, photogrammetry and AI map submerged waste and surrounding habitats to guide responsible removal decisions.