Title | Long-term observations of hourly currents at SAMBA Mooring 10 (October 2018 - October 2020) |
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Project | South Atlantic Meridional Overturning Circulation (SAMOC-SA) |
Authors |
Tarron Lamont Marcel van den Berg |
Publisher | Department of Forestry, Fisheries and the Environment (2023) |
Contributors |
Contact Person: Tarron Lamont Contact Person: Marcel van den Berg |
Abstract | Here we present processed magnitude and direction of hourly currents in the upper part of the water column (56.13 - 440.13 m) from an Acoustic Doppler Current Profiler (ADCP) located at a depth of 465m at M10 (34.5000°S; 14.7038°E) along the South Atlantic Meridional Overturning Circulation (MOC) Basin-scale Array (SAMBA) transect in the Cape Basin region of the South Atlantic Ocean, between 17 October 2018 and 07 October 2020. The South African component of the international South Atlantic Meridional Overturning Circulation project (SAMOC-SA) aims to characterise the time-mean and time-varying components of the SAMOC in the South Atlantic Ocean and monitor the variability of the main Southern Ocean frontal systems associated with the Antarctic Circumpolar Current (ACC), south of Africa. |
Methods | A subsurface-mounted, upward-looking, 75 kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was configured with a bin size of 16m and a blanking distance of 7m, and deployed at a depth of 465m at location M10 (34.5000°S; 14.7038°E), along the South Atlantic Meridional Overturning Circulation Basin-scale Array (SAMBA) transect in the Cape Basin region of the South Atlantic Ocean. The instrument measured hourly magnitude and direction in the upper part of the water column (56.13 - 440.13m) between 17 October 2018 10h00 and 07 October 2020 05h00. These hourly values were corrected for magnetic declination, and only hourly values which showed ≥ 75% good beam data were used. |
Data | |
Temporal extent | 17 Oct 2018 – 07 Oct 2020 |
Geographic extent |
Cape Basin, South Atlantic Ocean
North: -32.0 |
Vertical extent |
Max: -440.13 m Min: -56.13 m |
Keywords | Acoustic Doppler Current Profilers, ADCP, currents, moorings, SAMBA transect, SOUTH ATLANTIC OCEAN |
Related resources |
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