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| Kersalé, Marion; Perez, Renellys C.; Speich, Sabrina; Meinen, Christopher S.; Lamont, Tarron; Le Hénaff, Matthieu; Van Den Berg, Marcel A.; Majumder, Sudip; Ansorge, Isabelle J.; Dong, Shenfu; Schmid, Claudia; Terre, Thierry; Garzoli, Silvia L.. |
| The first in situ continuous full‐water‐column observations of the Eastern Boundary Currents (EBCs) at 34.5°S in the South Atlantic are obtained using 23 months of data from a line of Current and Pressure recording Inverted Echo Sounders (CPIES) spanning the Cape Basin. The CPIES are used to evaluate the mean structure of the EBC, the associated water masses, and the volume transport variability. The estimated northward time‐mean Benguela Current absolute geostrophic transport is 24 Sv, with a temporal standard deviation of 17 Sv. Beneath this current the time‐mean transport is southward, indicating the presence of a deep‐EBC (DEBC), with a time‐mean transport of 12 Sv, and a standard deviation of 17 Sv. Offshore of these currents, the shallow and deep... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00479/59022/61644.pdf |
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| Kersale, Marion; Lamont, Tarron; Speich, Sabrina; Terre, Thierry; Laxenaire, Remi; Roberts, Mike J.; Van Den Berg, Marcel A.; Ansorge, Isabelle J.. |
| The eastern side of the South Atlantic Meridional overturning circulation Basin-wide Array (SAMBA) along 34.5 degrees S is used to assess the nonlinear, mesoscale dynamics of the Cape Basin. This array presently consists of current meter moorings and bottom mounted Current and Pressure recording Inverted Echo Sounders (CPIES) deployed across the continental slope. These data, available from September 2014 to December 2015, combined with satellite altimetry allow us to investigate the characteristics and the impact of mesoscale dynamics on local water mass distribution and cross-validate the different data sets. We demonstrate that the moorings are affected by the complex dynamics of the Cape Basin involving Agulhas rings, cyclonic eddies and anticyclonic... |
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| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00456/56806/58671.pdf |
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