Developments in marine pCO2 measurement technology; towards sustained in situ observations.
Average rating votes
Clarke, Jennifer S.
Achterberg, Eric P.
Connelly, Douglas P.
MetadataShow full item record
The oceanic uptake of anthropogenic CO2 causes pronounced changes to the marine carbonate system. High quality pCO2 measurements with good temporal and spatial coverage are required to monitor the oceanic uptake, identify regions with pronounced carbonate system changes, and observe the effectiveness of CO2 emission mitigation strategies. There are currently several instruments available, but many are unsuitable for autonomous deployments on in situ platforms such as gliders, moorings and Argo floats.We assess currently available technology on its suitability for in situ deployment, with a focus on optode technology developments. Optodes for pCO2 measurements provide a promising new technological approach, and were successfully calibrated over the range of 280e480 matm applying modified time-domain dual lifetime referencing. A laboratory precision of 0.8 matm (n ¼ 10) and a response time (t90) of 165 s were achieved, and with further development pCO2 optodes may become as wid.....
JournalTrends in Analytical Chemistry
Best Practice TypeStandard Operating Procedure
DOI Original10.1016/j.trac.2016.12.008 0165-9936/
CitationClarke, J.S.; Achterberg, E.P.; Connelly, D.P.; Schuster, U. and Mowlem, M. (2017) Developments in marine pCO2 measurement technology; towards sustained in situ observations . Trends in Analytical Chemistry, 88, pp.53-61. DOI: 10.1016/j.trac.2016.12.008 0165-9936/.
The following license files are associated with this item: