Dynamics of the deep chlorophyll maximum in the Black Sea as depicted by BGC-Argo floats

Ricour, Florian; Capet, Arthur; D'Ortenzio, Fabrizio; Delille, Bruno; Grégoire, Marilaure

doi:https://doi.org/10.5194/bg-18-755-2021

Articles | Volume 18, issue 2

https://doi.org/10.5194/bg-18-755-2021

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

https://doi.org/10.5194/bg-18-755-2021

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

Articles | Volume 18, issue 2

Research article

|

01 Feb 2021

Research article |

| 01 Feb 2021

Dynamics of the deep chlorophyll maximum in the Black Sea as depicted by BGC-Argo floats

Florian Ricour, Arthur Capet, Fabrizio D'Ortenzio, Bruno Delille, and Marilaure Grégoire

Data sets

fricour/DCM-Black-Sea-Paper: Final release of data and scripts used in the frame of the paper entitled "Dynamics of the Deep Chlorophyll Maximum in the Black Sea as depicted by BGC-Argo floats" Florian Ricour and Arthur Capet https://doi.org/10.5281/zenodo.4381774

Argo float data and metadata from Global Data Assembly Centre (Argo GDAC) Argo https://doi.org/10.17882/42182

Model code and software

fricour/DCM-Black-Sea-Paper: Final release of data and scripts used in the frame of the paper entitled "Dynamics of the Deep Chlorophyll Maximum in the Black Sea as depicted by BGC-Argo floats" Florian Ricour and Arthur Capet https://doi.org/10.5281/zenodo.4381774

Short summary

This paper addresses the phenology of the deep chlorophyll maximum (DCM) in the Black Sea (BS). We show that the DCM forms in March at a density level set by the winter mixed layer. It maintains this location until June, suggesting an influence of the DCM on light and nutrient profiles rather than mere adaptation to external factors. In summer, the DCM concentrates ~55 % of the chlorophyll in a 10 m layer at ~35 m depth and should be considered a major feature of the BS phytoplankton dynamics.