Long-term observations of hourly currents along the SAMBA transect at SAMBA Mooring 4, December 2015 - April 2017 ...

The South African component of the international South Atlantic Meridional Overturning Circulation project (SAMOC-SA) aims to characterize 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 associa...

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Bibliographic Details
Main Authors: Tarron Lamont, Marcel van den Berg
Format: Dataset
Language:English
Published: Department of Forestry, Fisheries and the Environment 2021
Subjects:
-26.39
-290.39
m
Mean sea level
completed
license
oceans
South Atlantic Meridional Overturning Circulation SAMOC-SA
SOUTH ATLANTIC OCEAN
ADCP
South Atlantic Meridional Overturning Circulation Basin-wide Array
SAMBA
South Atlantic Ocean
Cape Basin
moorings
currents
WGS 84
textTable
Antarc*
Antarctic
Southern Ocean
Online Access:https://dx.doi.org/10.15493/dea.mims.20210319
https://api.odp.saeon.ac.za/catalog/MIMS/go/10.15493/DEA.MIMS.20210319
Description
Summary:The South African component of the international South Atlantic Meridional Overturning Circulation project (SAMOC-SA) aims to characterize 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. Here we present processed magnitude and direction of hourly currents in the upper part of the water column (26.39 - 290.39m) from an ADCP located at a depth of 312m at Mooring 4 (34.29465°S; 17.8803°E) along the South Atlantic MOC Basin-scale Array (SAMBA) transect in the Cape Basin region of the South Atlantic Ocean, between 30 November 2015 and 05 April 2017. ... : A subsurface-mounted, upward-looking, 150 kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was configured with a bin size of 8m and a blanking distance of 3.52m, and deployed at a depth of 312m at location M4 (34.29465°S; 17.8803°E), along the South Atlantic MOC 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 (26.39 - 290.39m) between 30 November 2015 20h00 and 05 April 2017 04h00. These hourly values were corrected for magnetic declination, and only hourly values which showed ≥ 75% good beam data were used. ...

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