FN Archimer Export Format
PT J
TI Uncoupled transport of chlorofluorocarbons and anthropogenic carbon in the subpolar North Atlantic
BT 
AF ALVAREZ, Marta
   GOURCUFF, Claire
AS 1:1;2:2;
FF 1:;2:;
C1 IMEDEA CSIC UIB, Esporles 07190, Spain.
   IFREMER, CNES, Plouzane, France.
C2 IMEDEA, SPAIN
   CNES, FRANCE
IF 2.372
TC 3
UR https://archimer.ifremer.fr/doc/00009/11994/9039.pdf
LA English
DT Article
CR OVIDE
DE ;Anthropogenic carbon;CFC;Advective transports;Subpolar North Atlantic
AB Chlorofluorocarbon (CFC) 11 and 12 transports across the transoceanic World Ocean Circulation Experiment (WOCE) A25 section in the subpolar North Atlantic are derived from an inverse model using hydrographic and ADCP data (Lherminier et al., 2007). CFC and anthropogenic carbon (C-ANT) advective transports contrary to expected are uncoupled: C-ANT is transported northeastwards (82 +/- 39 kmol s(-1)) mainly within the overturning circulation, while CFC-11 and CFC-12 are transported southwestwards (-24 +/- 4 and -11 +/- 2 mol s(-1), respectively) as part of the large-scale horizontal circulation. The main reason for this uncoupled behaviour is the complex CFC vs. C-ANT relation in the ocean, which stems from the contrasting temperature relation for both tracers: more C-ANT dissolves in warmer waters with a low Revel le factor, while CFC's solubility is higher in cold waters. These results point to C-ANT and CFC having different routes of uptake, accumulation and transport within the ocean, and hence: C-ANT transport would be more sensitive to changes in the overturning circulation strength, while CFC to changes in the East Greenland Current and Labrador Sea Water formation in the Irminger Sea. Additionally, C-ANT and CFCs would have different sensitivities to circulation and climate changes derived from global warming as the slowdown of the overturning circulation, increase stratification due to warming and changes in wind stress.
PY 2010
PD JUN
SO Deep-sea Research Part I-oceanographic Research Papers
SN 0967-0637
PU Pergamon-elsevier Science Ltd
VL 57
IS 7
UT 000279576600003
BP 860
EP 868
DI 10.1016/j.dsr.2010.03.009
ID 11994
ER

EF