As part of the environmental monitoring programme of the Mareterra coastal extension, Cosma generated high-resolution digital twins of 678 metres of vertical caisson walls, reaching heights of up to 17 metres, together with the associated ecological infrastructures.

Beyond data acquisition, the mission formed part of the broader Monaco Explorations programme aimed at strengthening marine protected area management across the Mediterranean. During the Volos stopover, Cosma’s technology was showcased alongside other innovative monitoring solutions to researchers and marine protected area managers, demonstrating how lightweight robotic systems can rapidly generate detailed digital twins for environmental monitoring and long-term conservation planning.

Cosma deployed its lightweight underwater vehicles equipped with high-resolution optical sensors to acquire continuous georeferenced imagery of the vertical infrastructures. The resulting datasets were processed into detailed 3D hotogrammetric reconstructions, orthomosaics, georeferenced photographic databases and an interactive digital twin accessible through Cosma’s cloud platform. Artificial intelligence was trained to automatically detect and classify the numerous engineered components integrated into the caisson walls.

Beyond infrastructure inspection, the digital twins provide an unprecedented tool for monitoring the progressive colonisation of the ecological modules by marine organisms. Scientists and infrastructure managers can accurately quantify biological development, assess structural condition and compare future surveys over time using a permanent, repeatable digital reference.