@article{fdi:010089678,
  title = {{T}he {O}cean's {M}eridional oxygen transport},
  author = {{P}ortela, {E}. and {K}olodziejczyk, {N}. and {G}orgues, {T}homas and {Z}ika, {J}. and {P}erruche, {C}. and {M}ignot, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{Q}uantification of oxygen uptake at the ocean surface and its surface-to-interior pathways is crucial for understanding oxygen concentration change in a warming ocean. {W}e investigate the mean meridional global oxygen transport between 1950 and 2009 using coupled physical-biogeochemical model output. {W}e introduce a streamfunction in latitude-oxygen coordinates to reduce complexity in the description of the mean meridional oxygen pathways. {T}he meridional oxygen transport occurs in two main cells: (a) the {N}orthern {C}ell, dominated by the {A}tlantic {M}eridional {O}verturning {C}irculation, is nearly adiabatic in the {N}orthern {H}emisphere, and transports well oxygenated waters equatorward; (b) {T}he {S}outhern {C}ell, strongly diabatic, is shaped by the circulation in the {I}ndo-{P}acific basin, and combines the subtropical and abyssal meridional circulation cells when represented in depth-latitude coordinates. {A}nalysis of isopycnal meridional oxygen transport shows that the northward flow from the {S}outhern {O}cean transports well oxygenated waters within intermediate and bottom layers, while oxygen-rich waters reach the {S}outhern {O}cean within deep layers (27.6 < sigma(0) < 27.9 kg m(-3)), carried by the {N}orth {A}tlantic {D}eep {W}ater ({NADW}). {T}his oxygenated {NADW} loses around 25% of its oxygen concentration along its meridional journey from the {N}orth {A}tlantic (at 55 degrees {N}) to the {S}outhern {O}cean. {T}hese insights into the oxygen dynamics as driven by the meridional overturning circulation provide a new framework for future studies on ocean deoxygenation.},
  keywords = {dissolved oxygen transport ; oxygen streamfunction ; {ATLANTIQUE} ; {OCEAN} {AUSTRAL}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {129},
  numero = {3},
  pages = {e2023{JC}020259 [15 p.]},
  ISSN = {2169-9275},
  year = {2024},
  DOI = {10.1029/2023jc020259},
  URL = {https://www.documentation.ird.fr/hor/fdi:010089678},
}