Articles | Volume 20, issue 22
https://doi.org/10.5194/bg-20-4591-2023
https://doi.org/10.5194/bg-20-4591-2023
Research article
 | 
24 Nov 2023
Research article |  | 24 Nov 2023

Chromophoric dissolved organic matter dynamics revealed through the optimization of an optical–biogeochemical model in the northwestern Mediterranean Sea

Eva Álvarez, Gianpiero Cossarini, Anna Teruzzi, Jorn Bruggeman, Karsten Bolding, Stefano Ciavatta, Vincenzo Vellucci, Fabrizio D'Ortenzio, David Antoine, and Paolo Lazzari

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Cited articles

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Ackleson, S. G., Balch, W. M., and Holligan, P. M.: Response of water-leaving radiance to particulate calcite and chlorophyll a concentrations: a model for Gulf of Maine coccolithophore blooms, J. Geophys. Res., 99, 7483–7500, https://doi.org/10.1029/93JC02150, 1994. 
Álvarez, E., Lazzari, P., and Cossarini, G.: Phytoplankton diversity emerging from chromatic adaptation and competition for light, Prog. Oceanogr., 204, 102789, https://doi.org/10.1016/j.pocean.2022.102789, 2022. 
Álvarez, E.: Setup of GOTM-FABM-BFM for 1D simulations at the BOUSSOLE site (v1.0.0), Zenodo [code], https://doi.org/10.5281/zenodo.10067424, 2023a. 
Álvarez, E.: Results set of GOTM-FABM-BFM 1D simulations at the BOUSSOLE site, Zenodo, [data set], https://doi.org/10.5281/zenodo.7628060, 2023b. 
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Chromophoric dissolved organic matter (CDOM) interacts with the ambient light and gives the waters of the Mediterranean Sea their colour. We propose a novel parameterization of the CDOM cycle, whose parameter values have been optimized by using the data of the monitoring site BOUSSOLE. Nutrient and light limitations for locally produced CDOM caused aCDOM(λ) to covary with chlorophyll, while the above-average CDOM concentrations observed at this site were maintained by allochthonous sources.
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