TY - JOUR
T1 - Surface salinity in the North Atlantic subtropical gyre
T2 - During the STRASSE/SPURS summer 2012 cruise
AU - Reverdin, Gilles
AU - Morisset, Simon
AU - Marié, Louis
AU - Bourras, Denis
AU - Sutherland, Graigory
AU - Ward, Brian
AU - Salvador, Joaquín
AU - Font, Jordi
AU - Cuypers, Yannis
AU - Centurioni, Luca
AU - Hormann, Verena
AU - Koldziejczyk, Nicolas
AU - Boutin, Jacqueline
AU - D’Ovidio, Francesco
AU - Nencioli, Francesco
AU - Martin, Nicolas
AU - Diverres, Denis
AU - Alory, Gaël
AU - Lumpkin, Rick
N1 - Publisher Copyright:
© 2015 by The Oceanography Society. All rights reserved.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - We investigated a 100 × 100 km high-salinity region of the North Atlantic subtropical gyre during the Sub-Tropical Atlantic Surface Salinity Experiment/Salinity Processes in the Upper-ocean Regional Study (STRASSE/SPURS) cruise from August 21, 2012, to September 9, 2012. Results showed great variability in sea surface salinity (SSS; over 0.3 psu) in the mesoscale, over 7 cm of total evaporation, and little diapycnal mixing below 36 m depth, the deepest mixed layers encountered. Strong currents in the southwestern part of the domain, and the penetration of freshwater, suggest that advection contributed greatly to salinity evolution. However, it was further observed that a smaller cyclonic structure tucked between the high SSS band and the strongest currents contributed to the transport of high SSS water along a narrow front. Cross-frontal transport by mixing is also a possible cause of summertime reduction of SSS. The observed structure was also responsible for significant southward salt transport over more than 200 km.
AB - We investigated a 100 × 100 km high-salinity region of the North Atlantic subtropical gyre during the Sub-Tropical Atlantic Surface Salinity Experiment/Salinity Processes in the Upper-ocean Regional Study (STRASSE/SPURS) cruise from August 21, 2012, to September 9, 2012. Results showed great variability in sea surface salinity (SSS; over 0.3 psu) in the mesoscale, over 7 cm of total evaporation, and little diapycnal mixing below 36 m depth, the deepest mixed layers encountered. Strong currents in the southwestern part of the domain, and the penetration of freshwater, suggest that advection contributed greatly to salinity evolution. However, it was further observed that a smaller cyclonic structure tucked between the high SSS band and the strongest currents contributed to the transport of high SSS water along a narrow front. Cross-frontal transport by mixing is also a possible cause of summertime reduction of SSS. The observed structure was also responsible for significant southward salt transport over more than 200 km.
UR - https://www.scopus.com/pages/publications/84925331496
U2 - 10.5670/oceanog.2015.09
DO - 10.5670/oceanog.2015.09
M3 - Article
SN - 1042-8275
VL - 28
SP - 114
EP - 123
JO - Oceanography
JF - Oceanography
IS - 1
ER -