FN Archimer Export Format
PT J
TI Internal and forced variability along a section between Greenland and Portugal in the CLIPPER Atlantic model
BT 
AF TREGUIER, Anne-Marie
   GOURCUFF, Claire
   LHERMINIER, Pascale
   MERCIER, Herle
   BARNIER, Bernard
   MADEC, Gurvan
   MOLINES, Jean-Marc
   PENDUFF, Thierry
   CZESCHEL, Lars
   BONING, Claus
AS 1:1;2:5;3:5;4:1;5:2;6:3;7:2;8:2;9:4;10:4;
FF 1:;2:PDG-DOP-DCB-OPS-LPO;3:PDG-DOP-DCB-OPS-LPO;4:;5:;6:;7:;8:;9:;10:;
C1 CNRS, IFREMER, UBO, Lab Phys Oceans, Brest, France.
   Univ Grenoble 1, Lab Ecoulements Geophys & Ind, Grenoble, France.
   Univ Paris 06, LOCEAN, Lab Oceanog & Climat, Paris, France.
   IFM GEOMAR, Kiel, Germany.
C2 CNRS, FRANCE
   UNIV GRENOBLE, FRANCE
   LOCEAN, FRANCE
   IFM GEOMAR, GERMANY
   IFREMER, FRANCE
SI BREST
SE PDG-DOP-DCB-OPS-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 1.165
TC 14
TU Centre national de la recherche scientifique
   Institut de recherche pour le développement
   Muséum national d'histoire naturelle
   Université Pierre et Marie Curie
UR https://archimer.ifremer.fr/doc/2006/publication-2199.pdf
LA English
DT Article
CR OVIDE 1
BO Thalassa
DE ;Ocean model;Thermohaline circulation;North Atlantic;Climate variability;Oceanography
AB Numerical models are used to estimate the meridional overturning and transports along the paths of two hydrographic cruises, carried out in 1997 and 2002 from Greenland to Portugal. We have examined the influence of the different paths of the two cruises and found that it could explain 0.4 to 2 Sv of difference in overturning (the precise value is model-dependent). Models show a decrease in the overturning circulation between 1997 and 2002, with different amplitudes. The CLIPPER ATL6 model reproduces well the observed weakening of the overturning in density coordinates between the cruises; in the model, the change is due to the combination of interannual and high-frequency forcing and internal variability associated with eddies and meanders. Examination of the z-coordinate overturning reveals model-data discrepancies: the vertical structure in the models does not change as much as the observed one. The East Greenland current variability is mainly wind-forced in the ATL6 model, while fluctuations due to eddies and instabilities explain a large part of the North Atlantic Current variability. The time-residual transport of dense water and heat due to eddy correlations between currents and properties is small across this section, which is normal to the direction of the main current.
PY 2006
PD DEC
SO Ocean Dynamics
SN 1616-7341
PU Springer
VL 56
IS 5-6
UT 000243189900015
BP 568
EP 580
DI 10.1007/s10236-006-0069-y
ID 2199
ER

EF