FN Archimer Export Format
PT J
TI Strong sensitivity of Southern Ocean carbon uptake and nutrient cycling to wind stirring
BT 
AF RODGERS, K. B.
   AUMONT, Olivier
   FLETCHER, S. E. Mikaloff
   PLANCHEREL, Y.
   BOPP, L.
   DE BOYER MONTEGUT, Clement
   IUDICONE, D.
   KEELING, R. F.
   MADEC, Gerard
   WANNINKHOF, R.
AS 1:1;2:2;3:3;4:4;5:5;6:6;7:7;8:8;9:9,10;10:11;
FF 1:;2:;3:;4:;5:;6:PDG-ODE-LOS;7:;8:;9:PDG-DCB-SGCB-IMA-MC;10:;
C1 Princeton Univ, AOS Program, Princeton, NJ 08544 USA.
   IRD, Plouzane, France.
   NIWA, Wellington, New Zealand.
   Univ Oxford, Dept Earth Sci, Oxford OX1 3PR, England.
   UVSQ, CEA, CNRS, IPSL,LSCE, Gif Sur Yvette, France.
   IFREMER, Ctr Brest, Lab Oceanog Spatiale, Plouzane, France.
   Stn Zool Anton Dohrn, Naples, Italy.
   Univ Calif San Diego, Scripps Inst Oceanog, San Diego, CA USA.
   UPMC, MNHN, IPSL, LOCEAN,CNRS,IRD, Paris, France.
   Natl Oceanog Ctr, Southampton, Hants, England.
   NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA.
C2 UNIV PRINCETON, USA
   IRD, FRANCE
   NIWA, NEW ZEALAND
   UNIV OXFORD, UK
   UNIV VERSAILLES, FRANCE
   IFREMER, FRANCE
   STN ZOOL ANTON DOHRN, ITALY
   UNIV CALIF SAN DIEGO, USA
   UNIV PARIS 06, FRANCE
   NOC, UK
   NOAA, USA
SI BREST
SE PDG-ODE-LPO
   PDG-ODE-LOS
   PDG-DCB-SGCB-IMA-MC
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 3.978
TC 29
UR https://archimer.ifremer.fr/doc/00211/32236/30684.pdf
LA English
DT Article
AB Here we test the hypothesis that winds have an important role in determining the rate of exchange of CO2 between the atmosphere and ocean through wind stirring over the Southern Ocean. This is tested with a sensitivity study using an ad hoc parameterization of wind stirring in an ocean carbon cycle model, where the objective is to identify the way in which perturbations to the vertical density structure of the planetary boundary in the ocean impacts the carbon cycle and ocean biogeochemistry. Wind stirring leads to reduced uptake of CO2 by the Southern Ocean over the period 2000-2006, with a relative reduction with wind stirring on the order of 0.9 Pg C yr(-1) over the region south of 45 degrees S. This impacts not only the mean carbon uptake, but also the phasing of the seasonal cycle of carbon and other ocean biogeochemical tracers. Enhanced wind stirring delays the seasonal onset of stratification, and this has large impacts on both entrainment and the biological pump. It is also found that there is a strong reduction on the order of 25-30% in the concentrations of NO3 exported in Subantarctic Mode Water (SAMW) to wind stirring. This finds expression not only locally over the Southern Ocean, but also over larger scales through the impact on advected nutrients. In summary, the large sensitivity identified with the ad hoc wind stirring parameterization offers support for the importance of wind stirring for global ocean biogeochemistry through its impact over the Southern Ocean.
PY 2014
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 11
IS 15
UT 000341104400003
BP 4077
EP 4098
DI 10.5194/bg-11-4077-2014
ID 32236
ER

EF