Satellite-derived bathymetry for aquaculture

March 1st, 2018, Published in Articles: Vector

British engineering and scientific consultancy, BMT, is using satellite-derived bathymetry from TCarta as a critical dataset in the selection of new fish farming sites in the Arabian Gulf. It is also using the geospatial company’s Marine Habitat Maps, which differentiate the surface compositions of the seafloor around the island in waters to approximately 10 m deep.

The consultancy used the datasets to select ideal fish farming sites based on two key criteria: the chosen offshore locations must fall within certain depth thresholds to accommodate the large fish cages, and the cages must be placed in areas where water currents will continuously flush waste from the enclosures and keep the growing fish healthy. Satellite-derived bathymetry can be captured more cost-effectively than traditional marine survey data according to company, which has commercialised its proprietary process to extract seafloor depth measurements as well as seabed surface classifications from high-resolution satellite imagery. The technique uses 8-band multispectral imagery from the DigitalGlobe WorldView satellites and process it to derive the subsurface information. The resulting bathymetric data has an accuracy of 2 m to a depth of 20 m.

Contact TCarta,