Name: Long-term observations of daily currents measured by DVS at SAMBA Mooring 9 (April 2017 - May 2018)
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.26052091

Title	Long-term observations of daily currents measured by DVS at SAMBA Mooring 9 (April 2017 - May 2018)
Project	South Atlantic Meridional Overturning Circulation (SAMOC-SA)
Authors	Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa Marine Scientist 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, tlamont@environment.gov.za Marcel van den Berg Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa Marine Scientific Technician 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, mvdberg@environment.gov.za
Publisher	Department of Forestry, Fisheries and the Environment (2020)
Contributors	Contact Person: Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa Marine Scientist 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, tarron.lamont@gmail.com
Abstract	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. Here we present processed magnitude and direction of daily currents in the water column (1522 - 2622m) from Doppler Volume Sampler (DVS) instruments located at M9 (34.5011°S; 17.1395°E) along the South Atlantic MOC Basin-wide Array (SAMBA) transect in the Cape Basin region of the South Atlantic Ocean, between 11 April 2017 and 18 May 2018
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 ( 1522 - 2622m) at location M9 (34.5011°S; 17.1395°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 water column between 11 April 2017 and 18 may 2018. 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. The data were then formatted in a .txt file with data values separated by commas.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.26052091 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	11 Apr 2017 – 18 May 2018
Geographic extent	Cape Basin, South Atlantic Ocean Lat: -34.5011 Lon: 17.1395
Vertical extent	Max: -1522.0 m Min: -2622.0 m
Keywords	Cape Basin, currents, 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 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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