Centre d’innovació i Tecnologia BARCELONATECH

Expandable seafloor observatory

OBSEA is a cabled seafloor observatory located 4 km off the coast of Vilanova i la Geltrú, 20 m below the surface in a protected fishing area. A hybrid electricity-communications cable connects the observatory to the shore to power the scientific instruments and provide broadband communication. This makes information available in real time.

The data available includes the temperature, pressure, conductivity, salinity, speed and direction of ocean currents, speed of sound, turbidity, amount of chlorophyll, and webcam images of the seabed.

As an expansion of OBSEA, a surface buoy obtains environmental data such as wind speed, temperature and pressure. The buoy and OBSEA can communicate via cable or acoustic modem.