Navis BGCi Autonomous Profiling Float with Integrated Biogeochemical Sensors

The new 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 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


Please see complete details for Navis BGC Autonomous Profiling Float with Biogeochemical Sensors on the Sea-Bird Electronics website.

Customer Alert

WET Labs ECO Centroid Angles for Back Scatter Measurements

Tuesday, June 7, 2016
Product Brochure

Navis BGC Brochure

Thursday, November 26, 2015
Product Datasheet

Navis BGCi Data Sheet

Friday, November 27, 2015
Navis BGCi datasheet NOV2015.pdf
Product Datasheet

Navis Profiling Float Product Guide

Thursday, November 26, 2015

What should I use to lubricate bulkhead connectors?

WET Labs recommends keeping the connectors on your meter lubricated using a good quality silicone spray lubricant, such as 3M Silicone Spray or Loctite 8021 spray. These can be purchased at your local hardware store. Avoid silicone grease. It is messy and attracts contaminants. 

Do not use WD-40. It will destroy connectors.

What is the back scattering angle of my ECO instrument?

The WET Labs’ ECO sensors have multiple back scattering angles depending upon type of sensor. This document will describe these angles based upon the type of ECO sensor selected by the customer. [PDF]

Please see complete details for Navis BGC Autonomous Profiling Float with Biogeochemical Sensors on the Sea-Bird Electronics website.