FN Archimer Export Format
PT J
TI Lagrangian water mass tracing from pseudo-Argo, model-derived salinity, tracer and velocity data: An application to Antarctic Intermediate Water in the South Atlantic Ocean
BT 
AF BLANKE, Bruno
   SPEICH, Sabrina
   RUSCIANO, Emanuela
AS 1:1,3;2:2;3:1,2;
FF 1:;2:;3:PDG-ODE-LPO;
C1 UFR Sci & Tech, CNRS Ifremer IRD UBO, Lab Phys Oceans, UMR 6523, F-29238 Brest 03, France.
   CNRS Ecole Polytech ENS UPMC, UMR 8359, Meteorol Dynam Lab, F-75231 Paris 05, France.
   Ifremer, France
C2 UBO, FRANCE
   CNRS, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LPO
UM LOPS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 3.337
TC 1
UR https://archimer.ifremer.fr/doc/00238/34910/33219.pdf
   https://archimer.ifremer.fr/doc/00238/34910/33597.pdf
LA English
DT Article
CR MD 166 / BONUS-GOODHOPE
BO Marion Dufresne
DE ;Ocean circulation;Conservation equations;Mathematical models;Density field;Subsurface drifters;Intermediate water masses
AB We use the tracer and velocity fields of a climatological ocean model to investigate the ability of Argo-like data to estimate accurately water mass movements and transformations, in the style of analyses commonly applied to the output of ocean general circulation model. To this end, we introduce an algorithm for the reconstruction of a fully non-divergent three-dimensional velocity field from the simple knowledge of the model vertical density profiles and 1000-m horizontal velocity components. The validation of the technique consists in comparing the resulting pathways for Antarctic Intermediate Water in the South Atlantic Ocean to equivalent reference results based on the full model information available for velocity and tracers. We show that the inclusion of a wind-induced Ekman pumping and of a well-thought-out expression for vertical velocity at the level of the intermediate waters is essential for the reliable reproduction of quantitative Lagrangian analyses. Neglecting the seasonal variability of the velocity and tracer fields is not a significant source of errors, at least well below the permanent thermocline. These results give us confidence in the success of the adaptation of the algorithm to true gridded Argo data for investigating the dynamics of flows in the ocean interior.
PY 2015
PD JAN
SO Ocean Modelling
SN 1463-5003
PU Elsevier Sci Ltd
VL 85
UT 000346737500005
BP 56
EP 67
DI 10.1016/j.ocemod.2014.11.004
ID 34910
ER

EF