Articles | Volume 18, issue 3
https://doi.org/10.5194/bg-18-937-2021
https://doi.org/10.5194/bg-18-937-2021
Research article
 | 
10 Feb 2021
Research article |  | 10 Feb 2021

Oxygen budget of the north-western Mediterranean deep- convection region

Caroline Ulses, Claude Estournel, Marine Fourrier, Laurent Coppola, Fayçal Kessouri, Dominique Lefèvre, and Patrick Marsaleix

Data sets

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

MOOSE-GE 2013 cruise, RV Tethys II P. Testor et al. https://doi.org/10.17600/13450110

DEWEX-MERMEX 2013 LEG2 cruise, RV Le Suroit P. Conan https://doi.org/10.17600/13020030

DEWEX-MERMEX 2013 LEG1 cruise, RV Le Suroit P. Testor https://doi.org/10.17600/13020010

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Short summary
We analyse the seasonal cycle of O2 and estimate an annual O2 budget in the north-western Mediterranean deep-convection region, using a numerical model. We show that this region acts as a large sink of atmospheric O2 and as a major source of O2 for the western Mediterranean Sea. The decrease in the deep convection intensity predicted in recent projections may have important consequences on the overall uptake of O2 in the Mediterranean Sea and on the O2 exchanges with the Atlantic Ocean.
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