FN Archimer Export Format PT J TI Seasonal dynamics and annual budget of dissolved inorganic carbon in the northwestern Mediterranean deep convection region BT AF Ulses, Caroline Estournel, Claude Marsaleix, Patrick Soetaert, Karline Fourrier, Marine Coppola, Laurent Lefèvre, Dominique Touratier, Franck Goyet, Catherine Guglielmi, Véronique Kessouri, Fayçal Testor, Pierre Durrieu de Madron, Xavier AS 1:1;2:1;3:1;4:2;5:3;6:3,4;7:5;8:6;9:6;10:6;11:7;12:8;13:9; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:; C1 Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, 4400 AC Yerseke, The Netherlands Sorbonne Université, CNRS, Laboratoire d’Océanographie de Villefranche (LOV), Villefranche-sur-Mer, France Sorbonne Université, CNRS, OSU STAMAR, Paris, France Aix-Marseille Université, Mediterranean Institute of Oceanography (MIO), 13288 Marseille Cedex 9, France IMAGES_ESPACE-DEV, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France Southern California Coastal Water Research Project, Costa Mesa, CA, USA CNRS-Sorbonne Universités (UPMC Univ. Pierre et Marie Curie, Paris 06)-CNRS-IRD-MNHN, UMR 7159, Laboratoire d’Océanographie et de Climatologie (LOCEAN), Institut Pierre Simon Laplace (IPSL), Observatoire Ecce Terra, Paris, France CEFREM, CNRS-Université de Perpignan, 52 avenue Paul Alduy, 66860, Perpignan, France C2 UNIV TOULOUSE, FRANCE NIOZ, NETHERLANDS UNIV SORBONNE, FRANCE UNIV SORBONNE, FRANCE UNIV AIX MARSEILLE, FRANCE UNIV PERPIGNAN, FRANCE SCCWRP, USA CNRS, FRANCE CEFREM, FRANCE SI TOULON SE MIO IN DOAJ IF 4.9 TC 0 UR https://archimer.ifremer.fr/doc/00805/91737/97687.pdf https://archimer.ifremer.fr/doc/00805/91737/97688.pdf https://archimer.ifremer.fr/doc/00805/91737/106532.pdf https://archimer.ifremer.fr/doc/00805/91737/106533.zip LA English DT Article CR BOUSSOLE BOUSSOLE 2020 CASCADE DEWEX-MERMEX 2013 LEG1 DEWEX-MERMEX 2013 LEG2 EMSO LIGURE OUEST MOOSE-GE MOOSE-GE 2013 BO Téthys II L'Atalante Le Suroît AB Deep convection plays a key role in the circulation, thermodynamics and biogeochemical cycles in the Mediterranean Sea, considered as a hotspot of biodiversity and climate change. In the framework of the DEWEX (Dense Water Experiment) project, the seasonal cycle and annual budget of dissolved inorganic carbon in the deep convection area of the northwestern Mediterranean Sea are investigated over the period September 2012–September 2013, using a 3-dimensional coupled physical-biogeochemical-chemical modeling approach. We estimate that the northwestern Mediterranean Sea deep convection region was a moderate sink of CO2 for the atmosphere over the study period. The model results show the reduction of CO2 uptake during deep convection, and its increase during the abrupt spring phytoplankton bloom following the deep convection events. We highlight the dominant role of both biological and physical flows in the annual dissolved inorganic carbon budget. The upper layer of the northwestern deep convection region gained dissolved inorganic carbon through vertical physical supplies and, to a lesser extent, air-sea flux, and lost dissolved inorganic carbon through lateral transport and biological fluxes. The region, covering 2.5 % of the Mediterranean, acted as a source of dissolved inorganic carbon for the surface and intermediate water masses of the western and southern Western Mediterranean Sea and could contribute up to 10 and 20 % to the CO2 exchanges with the Eastern Mediterranean Sea and the Atlantic Ocean. PY 2023 PD NOV SO Biogeosciences SN 1726-4170 PU Copernicus GmbH VL 20 IS 22 UT 001168793500001 BP 4683 EP 4710 DI 10.5194/bg-20-4683-2023 ID 91737 ER EF