Navis BGCi Autonomous Profiling Float with Integrated Biogeochemical Sensors

The Navis BGCi offers a profiling float with an integrated data stream for a suite of biogeochemical sensors.

Sea-Bird Scientific offers a full suite of sensor systems and platforms for profiling float-based biogeochemical (BGC) research.

The individually calibrated SBE 63 Optical Dissolved Oxygen sensor is integrated within the CTD flow path, providing optimal correlation with CTD measurements.

The ECOS-MCOMS optical sensor is three sensors in one, providing various combinations of Fluorescence (chlorophyll or CDOM) and Scattering (blue, green, or red) measurements. The sensor is integrated directly into the profiler float end cap and co-located with DO and physical measurements.

Scientific studies that will benefit from BGC sensors on the Navis float include:

  • Impacts of climate change on biogeochemical distributions and ecosystem dynamics
  • Net community production / respiration and changes in community structure
  • Impacts of episodic / anthropogenic events on ecosystems and biogeochemical distributions
  • Phytoplankton bloom dynamics and the resulting flux of carbon
  • Improved ocean biogeochemical and ecosystem models
  • Validation and calibration of ocean color remote sensing data products


  • SBE 41CP CTD; same CTD family as used on current Argo floats
  • Sufficient power for 250 profile cycles to 2000 dbars
  • Flexible mission sequencing, allowing for more frequent sampling in upper water column
  • Backed by Sea-Bird Scientific warranty

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