Objective
Understanding the slopes instability phenomena or tectonically active areas requires the capacity to measure and monitor a set of geotechnical, geodesic and chemical parameters. Although this monitoring can be achieved on shore with conventional means, its implementation on subsea areas presents numerous difficulties. The project proposes to develop and evaluate an instrumentation set enabling this monitoring, on subsea areas of about 1 km2 during up to two years. It comprises a part devoted to improving and adapting a selection of sensors to their particular implementation conditions, a part dedicated to the networking of the sensors organized in a set of distributed subsea stations for data collection. The developed system will be implemented in the Ormen Lange oil field and Gulf of Corinth, selected for the important consequences of geohazard risks on the local population and industry.