A catalogue of instruments and sensors used to measure pCO₂ in the ocean can be found on our instruments and sensors hardware directory site: 

http://www.ioccp.org/index.php/instruments-and-sensors#pco2

US NOAA CarbonTracker CT2017

https://www.esrl.noaa.gov/gmd/ccgg/carbontracker/

CarbonTracker is a CO₂ measurement and modeling system developed by NOAA to keep track of sources (emissions to the atmosphere) and sinks (removal from the atmosphere) of carbon dioxide around the world. CarbonTracker uses atmospheric CO₂ observations from a host of collaborators and simulated atmospheric transport to estimate these surface fluxes of CO₂. The current release of CarbonTracker, CT2017, provides global estimates of surface-atmosphere fluxes of CO₂ from January 2000 through December 2016.

CO₂ system calculation tools

A number of tools accessible from our Standards & Methods page HERE. 

SOCAT Workshops & Meetings (2007-2017)

Reports in chronological order available from: https://www.socat.info/index.php/meetings/

Surface Ocean CO₂ Variability and Vulnerabilities Workshop, Paris, April 2007

IOCCP Report No. 7 available HERE.

Ocean Surface pCO₂, Data Integration and Database Development, Tsukuba, January 2004

IOCCP Report No. 2 available HERE.