Technical note: Seamless gas measurements across the land–ocean aquatic continuum – corrections and evaluation of sensor data for CO2, CH4 and O2 from field deployments in contrasting environments

Canning, Anna Rose; Fietzek, Peer; Rehder, Gregor; Körtzinger, Arne

doi:https://doi.org/10.5194/bg-18-1351-2021

Articles | Volume 18, issue 4

https://doi.org/10.5194/bg-18-1351-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-18-1351-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 4

Technical note

|

23 Feb 2021

Technical note |

| 23 Feb 2021

Technical note: Seamless gas measurements across the land–ocean aquatic continuum – corrections and evaluation of sensor data for CO₂, CH₄ and O₂ from field deployments in contrasting environments

Anna Rose Canning, Peer Fietzek, Gregor Rehder, and Arne Körtzinger

Data sets

Flow-through sensor data for pCO2, pCH4, O2, temperature and salinity from SCOR cruise 2016: Baltic Sea Anna Canning, Peer Fietzek, Gregor Rehder, and Arne Körtzinger https://doi.org/10.1594/PANGAEA.925463

High-resolution sensor data for pCO2, O2 and temperature/salinity from METEOR M133: Cape Town to the Falklands Anna Canning, Peer Fietzek, and Arne Körtzinger https://doi.org/10.1594/PANGAEA.925069

Seasonal high-resolution sensor data for pCO2, pCH4, O2 and temperature/salinity within the Danube Delta, Romania in 2017 Anna Canning, Marie-Sophie Maier, Bernhard Wehrli, and Arne Körtzinger https://doi.pangaea.de/10.1594/PANGAEA.925080

Short summary

The paper describes a novel, fully autonomous, multi-gas flow-through set-up for multiple gases that combines established, high-quality oceanographic sensors in a small and robust system designed for use across all salinities and all types of platforms. We describe the system and its performance in all relevant detail, including the corrections which improve the accuracy of these sensors, and illustrate how simultaneous multi-gas set-ups can provide an extremely high spatiotemporal resolution.