Antarctic Circumpolar Current (ACC) - fronts product
Types of dataset: Front products
DOI: 10.24400/527896/a01-2023.004 - more metadata
Contents: 3 files containing variables to monitor the weekly position of the three main fronts of the Antarctic Circumpolar Current (ACC) - the Polar Front (PF), and the northern and southern branches of the Subantarctic Front (SAF-N and SAF).
Use: Ocean large-scale circulation, climate
Description: The original technique, developed by Sallée et al. (2008), assumes that iso-contours of satellite absolute dynamic topography (ADT) can be proxies for the traditional sub-surface hydrographic definition of the main Southern Ocean fronts. A recent version includes updates with the following definitions :
- Polar Front (PF) is associated with the -0.30 m ADT contour;
- Southern (main) branch of the Subantarctic Front (SAF) with the -0.10 m ADT contour;
- Northern branch of the Subantarctic Front (SAF-N) with the 0 m ADT contour.
Tool: handbook ACC fronts
Geographic coverage: Antarctic Circumpolar Current (ACC)
Distribution media: Authenticated FTP, Thredds Data Server (TDS)
Condition of access: These are standard products as stated in the licence agreement.
Citation: When using the Antarctic Circumpolar Current (ACC) - fronts product, please cite “The Antarctic Circumpolar Current (ACC) - fronts product DOI: 10.24400/527896/a01-2023.004 was produced by CTOH/LEGOS and distributed by AVISO (https://www.aviso.altimetry.fr/) with support from CNES [Data set] (v2.0).”
Copyright: 1993-2025 Cnes-CTOH/LEGOS
Reference:
- Sallée, J. B., K. Speer, and R. Morrow, 2008: Response of the Antarctic Circumpolar Current to Atmospheric Variability. J. Climate, 21, 3020–3039, https://doi.org/10.1175/2007JCLI1702.1
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Antarctic Circumpolar Current (ACC) - fronts product
| Products | Version | Authenticated access service | Data period | Format | File weight |
|---|---|---|---|---|---|
| Polar Front (PF) | 1.0 | CNES AVISO FTP/SFTP access (with AVISO+ credentials):
CNES AVISO THREDDS Data Server access (with AVISO+ credentials): | 1993-2023 | 3 files for the weekly positions of the 3 polar fronts | 40 MB |
| Southern branch of the Subantarctic Front (SAF) | 46 MB | ||||
| Northern branch of the Subantarctic Front (SAF-N) | 46 MB | ||||
| Polar Front (PF) | 2.0 | 1993-2025 | 40 MB | ||
| Southern branch of the Subantarctic Front (SAF) | 46 MB | ||||
| Northern branch of the Subantarctic Front (SAF-N) | 46 MB |
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