FN Archimer Export Format
PT J
TI The Ocean's Meridional Oxygen Transport
BT 
AF Portela, Esther
   Kolodziejczyk, Nicolas
   Gorgues, Thomas
   Zika, Jan
   Perruche, Coralie
   Mignot, Alexandre
AS 1:1,2;2:1;3:6;4:3,4;5:5;6:5;
FF 1:;2:;3:;4:;5:;6:;
C1 Laboratoire d’Oceanographie Physique et Spatiale (LOPS) University Brest CNRS IRD Ifremer Plouzane, France
   School of Environmental Sciences University of East Anglia Norwich, UK
   School of Mathematics and Statistics and UNSW Data Science Hub (uDASH) University of New South Wales Sydney NSW, Australia
   Australian Centre for Excellence in Antarctic Science (ACEAS) University of New South Wales Sydney NSW ,Australia
   Mercator Océan Toulouse ,France
   Laboratoire d’Oceanographie Physique et Spatiale (LOPS) University Brest CNRS IRD Ifremer Plouzane, France
C2 UBO, FRANCE
   UNIV E ANGLIA, UK
   UNIV NEW YORK, AUSTRALIA
   UNIV NEW S WALES, AUSTRALIA
   MERCATOR OCEAN, FRANCE
   IRD, FRANCE
UM LOPS
IN WOS Cotutelle UMR
   copubli-france
   copubli-europe
   copubli-int-hors-europe
IF 3.6
TC 0
UR https://archimer.ifremer.fr/doc/00880/99210/109063.pdf
   https://archimer.ifremer.fr/doc/00880/99210/109064.pdf
LA English
DT Article
DE ;dissolved oxygen transport;oxygen streamfunction
AB Quantification of oxygen uptake at the ocean surface and its surface‐to‐interior pathways is crucial for understanding oxygen concentration change in a warming ocean. We investigate the mean meridional global oxygen transport between 1950 and 2009 using coupled physical‐biogeochemical model output. We introduce a streamfunction in latitude‐oxygen coordinates to reduce complexity in the description of the mean meridional oxygen pathways. The meridional oxygen transport occurs in two main cells: (a) the Northern Cell, dominated by the Atlantic Meridional Overturning Circulation, is nearly adiabatic in the Northern Hemisphere, and transports well oxygenated waters equatorward; (b) The Southern Cell, strongly diabatic, is shaped by the circulation in the Indo‐Pacific basin, and combines the subtropical and abyssal meridional circulation cells when represented in depth‐latitude coordinates. Analysis of isopycnal meridional oxygen transport shows that the northward flow from the Southern Ocean transports well oxygenated waters within intermediate and bottom layers, while oxygen‐rich waters reach the Southern Ocean within deep layers (27.6 < σ0 < 27.9 kg m−3), carried by the North Atlantic Deep Water (NADW). This oxygenated NADW loses around 25% of its oxygen concentration along its meridional journey from the North Atlantic (at 55°N) to the Southern Ocean. These insights into the oxygen dynamics as driven by the meridional overturning circulation provide a new framework for future studies on ocean deoxygenation. 
PY 2024
PD MAR
SO Journal Of Geophysical Research-oceans
SN 2169-9275
PU American Geophysical Union (AGU)
VL 129
IS 3
UT 001179508000001
DI 10.1029/2023JC020259
ID 99210
ER

EF