FN Archimer Export Format PT J TI Low-frequency thermohaline variability in the Subtropical South Atlantic pycnocline during 2002-2013 BT AF KOLODZIEJCZYK, Nicolas REVERDIN, Gilles GAILLARD, Fabienne LAZAR, Alban AS 1:1;2:1;3:2;4:1; FF 1:;2:;3:PDG-ODE-LPO;4:; C1 Univ Paris 06, CNRS, Univ Paris 04, IRD,MNHN,LOCEAN Lab, Paris, France. IFREMER, Lab Phys Oceans, UMR 6523, CNRS,IRD,UBO, Plouzane, France. C2 UNIV PARIS 06, FRANCE IFREMER, FRANCE SI BREST SE PDG-ODE-LPO IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 4.196 TC 12 UR https://archimer.ifremer.fr/doc/00212/32310/30756.pdf LA English DT Article AB Low-frequency variability of spiciness is observed in the Subtropical South Atlantic over the period 2002–2013 with the Argo gridded product In Situ Analysis System. Within the pycnocline, spiciness anomalies propagate at a mean speed of 0.04 ± 0.02 m s−1, the same speed as the gyre mean circulation, from the Agulhas Retroflection region off South Africa (~35°S–20°E) toward the South American coast (~18°S–35°W). After 2010, propagation is still found, but stationary local spiciness generation is also found over the Subtropical South Atlantic. This spiciness increase is associated with high values of vertical Turner angle below the mixed layer base during late winter. This suggests spice injection resulting from penetrative convective mixing due to air-sea buoyancy loss. These features may have an impact on the low-frequency warm and salty signal produced by the Agulhas leakage in Subtropical South Atlantic and the upper branch of the Atlantic Meridional Overturning Circulation. PY 2014 PD SEP SO Geophysical Research Letters SN 0094-8276 PU Amer Geophysical Union VL 41 IS 18 UT 000344913700021 BP 6468 EP 6475 DI 10.1002/2014GL061160 ID 32310 ER EF