Satellite-based seabed mapping (bathymetry) with onsite validation through autonomous robot ship
Abstract
Background: Estonia has a coastline of about 3,800 km, but more than 30% of the sea areas have not been measured according to modern standards. A large part of the data comes from the years 1951-1968, which is why the safety of shipping is not guaranteed and there is no knowledge of the state of the seabed. Surveys are important for infrastructure, navigation, shipwreck detection and environmental protection. Objectives: To develop and validate a methodology based on EO satellite data to derive bathymetric measurements of the seabed using the Copernicus Sentinel satellites (S1 and S2), combining SAR and optical data, validated by an autonomous robotic vessel.
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