Open-Ocean Observatory

The oceanic node [ESTOC- European Station of Time-Series in the Oceanic of Canary Islands] is located 60 nautical miles northwards of Gran Canaria over 3670 meters depth. It has been operational since 1992 for the development of long-term meteorological and oceanographic time series in the East-Central North Atlantic area. The Deep Observatory shares some facilities with coastal and extended observatories (eg surface vehicles, laboratories, e-infrastructure).

Data (Visualisation and  THREDDS service)

Surface buoy sensors

  • Atmospheric: Temperature sensors, humidity, ultrasonic and mechanical anemometers, pressure, PAR and GPS. Marine: Sensors of temperature, conductivity, dissolved oxygen, chlorophyll, turbidity, pH and CO2.

Mooring sensors

  • At 80-100m depth: CTD with dissolved oxygen, fluorometer, ADCP. At 150m depth: CTD with dissolved oxygen, nitrate sensor, current meter and hydrophone. At 1600m depth: CTD, sediment trap.


  • Argos-3 and Iridium

Unmanned Surface vehicles

Underwater vehicles

Oceanographic cruises

  • PLOCAN conducts periodic oceanographic campaigns in the open sea, supported by national research vessels. The samples are analyzed in the laboratory, in the PLOCAN ground facilities. In-situ measurements are complemented by a multivariable profiler equipped with pressure sensors, temperature, pH, DO, conductivity, sound velocity and a chlorophyll fluorometer.