Processing BGC-Argo CDOM concentration at the DAC level. Version 1.0. October 10th 2017.
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In the open ocean, Colored Dissolved Organic Matter (CDOM) is the fraction of the total Dissolved Organic Matter (DOM), composed by a mixture of chemically complex algal degradation products that interact with light. CDOM absorbs solar radiation in the UV and visible ranges (Bricaud et al., 1981) and, if illuminated, re-emits light as fluorescence (i.e., FDOM; Coble 1996). These optical measurements can be used as proxies of CDOM concentration. Whereas CDOM absorption measurements are given by the entire pool of the organic matter, FDOM measurements detect only sub-fractions. Depending on excitation and emission wavelengths of the fluorometer, FDOM can represent the fresh-material produced by microbial degradation of phytoplankton cells and/or from zooplanktonic excretion, or aged humic substances (Stedmon and Nelson, 2015; Nelson and Gauglitz, 2016). Whereas CDOM absorption measurements require laboratory facilities, FDOM detection can be easily implemented on autonomous Biogeochemica.....
PublisherIFREMER for Argo Data Management
Essential Ocean Variables (EOV)Dissolved Organic Carbon
Maturity LevelTRL 8 Actual system completed and "mission qualified" through test and demonstration in an operational environment (ground or space)
Best Practice TypeStandard Operating Procedure
CitationSchmechtig, C.; Organelli, E.; Potea, A.; Claustre, H. and D'Ortenzio, F. (2017) Processing BGC-Argo CDOM concentration at the DAC level. Version 1.0. October 10th 2017. IFREMER for Argo data management, 11pp. DOI:. http://doi.org/10.13155/54541