Name: Long-term observations of daily currents measured by DVS at SAMBA Mooring 9 (October 2018 - October 2020)
License: https://creativecommons.org/licenses/by-sa/4.0/legalcode

DOI: 10.15493/DEA.MIMS.01652023

Title	Long-term observations of daily currents measured by DVS at SAMBA Mooring 9 (October 2018 - October 2020)
Project	South Atlantic Meridional Overturning Circulation (SAMOC-SA)
Authors	Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientist; contact details: email: tlamont@dffe.gov.za Marcel van den Berg Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientific Technician; contact details: email: mvdberg@dffe.gov.za
Publisher	Department of Forestry, Fisheries and the Environment (2023)
Contributors	Contact Person: Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientist; contact details: email: tarron.lamont@gmail.com Contact Person: Marcel van den Berg Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientific Technician; contact details: email: mvandenberg.dea@gmail.com
Abstract	Here we present processed magnitude and direction of daily currents in the water column (1766 - 2862m) from Doppler Volume Sampler (DVS) instruments located at M9 (34.50295°S; 17.1242°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 16 October 2018 and 05 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, 2400 kHz RD Instruments Doppler Volume Samplers (DVS) were configured with a bin size of 0.8m and a blanking distance of 0.3m, and deployed in the water column (1766 - 2862m) at location M9 (34.50295°S; 17.1242°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 water column between 16 October 2018 and 05 October 2020. These hourly values were corrected for magnetic declination, and then averaged to daily means for each depth bin. Only hourly values which showed ≥ 75% good beam data were used, and daily values were only generated for days on which there were 75% or more hourly readings.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.01652023 Style Terms of use These data are made available with the express understanding that any such use will properly acknowledge the originator(s) and publisher and cite the accession numbers and/or associated Digital Object Identifiers. Anyone wishing to use these data should properly cite and attribute the data providers listed as authors in the metadata provided with each dataset. It is expected that all the conditions of the data license will be strictly honoured. Use of any material herein should be properly cited using the dataset’s persistent identifiers such as accession numbers and DOIs. I agree to the terms of use
Temporal extent	16 Oct 2018 – 05 Oct 2020
Geographic extent	Cape Basin, South Atlantic Ocean North: -32.0 South: -36.0 West: 0.0 East: 19.0
Vertical extent	Max: -2862 m Min: -1766 m
Keywords	currents, Doppler Volume Sampler, DVS, moorings, SAMBA transect, SOUTH ATLANTIC OCEAN
Related resources	This digital object continues Long-term observations of daily currents measured by DVS at SAMBA Mooring 9 (December 2015 - April 2017) (10.15493/DEA.MIMS.26052087) This digital object is new version of Raw Acoustic Doppler Current Profiler (ADCP) data from long-term observations of currents at SAMBA Mooring 9 (October 2018 - October 2020) (10.15493/DEA.MIMS.01562023) This digital object is part of Long-term moored observations from the eastern part of the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) (10.15493/DEA.MIMS.26052050)

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