FN Archimer Export Format
PT J
TI Temperature variability in the Bay of Biscay during the past 40 years, from an in situ analysis and a 3D global simulation
BT 
AF MICHEL, Sylvain
   TREGUIER, Anne-Marie
   VANDERMEIRSCH, Frederic
AS 1:1;2:2;3:1;
FF 1:PDG-DOP-DCB-DYNECO-PHYSED;2:;3:PDG-DOP-DCB-DYNECO-PHYSED;
C1 IFREMER, Dynam Environnement Cotier Phys Hydrodynam & Sedi, F-29280 Plouzane, France.
   IFREMER, CNRS, Lab Phys Oceans, IRD,UBO, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-DOP-DCB-DYNECO-PHYSED
   PDG-DOP-DCB-OPS-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 2.183
TC 30
UR https://archimer.ifremer.fr/doc/2009/publication-6680.pdf
LA English
DT Article
DE ;Ocean circulation model;Air sea flux;Heat budget;Climatic change;Interannual temperature variability;Bay of Biscay
AB A global in situ analysis and a global ocean simulation are used jointly to study interannual to decadal variability of temperature in the Bay of Biscay, from 1965 to 2003. A strong cooling is obtained at all depths until the mid-1970's, followed by a sustained warming over similar to 30 years. Strong interannual fluctuations are superimposed on this slow evolution. The fluctuations are intensified at the surface and are weakest at similar to 500 m. A good agreement is found between the observed and simulated temperatures, in terms of mean values, interannual variability and time correlations. Only the decadal trend is significantly underestimated in the simulation. A comparison to satellite sea surface temperature (SST) data over the last 20 years is also presented. The first mode of interannual variability exhibits a quasi-uniform structure and is related to the inverse winter North Atlantic Oscillation (NAO) index. Regarding the vertical structure, most cool and warm anomalies are generated at the surface, with the strongest ones penetrating down to 700 m and lasting up to 5 years. The complete heat budget from 1965 to 2004 is presented, including the contributions of vertical transport, freshwater flux and surface elevation. Interannual anomalies are mainly generated by the surface heat flux, while oceanic transports may become more important at longer time scales. (C) 2009 Elsevier Ltd. All rights reserved.
PY 2009
PD APR
SO Continental Shelf Research
SN 0278-4343
PU Elsevier
VL 29
IS 8
UT 000266057100013
BP 1070
EP 1087
DI 10.1016/j.csr.2008.11.019
ID 6680
ER

EF