An international instrument and methods comparison for the measurement of Dissolved Organic Carbon (DOC) in seawater has been underway since 1993. The intent of this effort is to develop coherence between laboratories on DOC measurements so that accurate global and long-term analyses of DOC data can be made and so information based on accurate DOC measurements will be consistent with other oceanographic information. Although the orientation of the intercalibration is oceanographic and especially relates to the Joint Global Ocean Flux Study, a number of aquatic analysts working in freshwater systems are also involved.

Sharp, J.H. 1995. DOC intercalibration to end soon. Oceanography 8(3):109, https://doi.org/10.5670/oceanog.1995.12.

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