Name: Short-term observations of daily currents on the continental slope off Natal Bight, along the east coast of South Africa at location Dbn03 (April 2009 - September 2009)
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.82072024

Title	Short-term observations of daily currents on the continental slope off Natal Bight, along the east coast of South Africa at location Dbn03 (April 2009 - September 2009)
Project	African Coelacanth Ecosystem Programme (ACEP)
Authors	Gavin Louw Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientific Technician; contact details: email: glouw@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 Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientist; contact details: email: tlamont@dffe.gov.za
Publisher	Department of Forestry, Fisheries and the Environment (2024)
Contributors	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	Between 2009 and 2013, multiple short-term mooring deployments were conducted to determine the oceanographic characteristics and variability along the KwaZulu-Natal (KZN) Bight, along the east coast of South Africa. One mooring (Sez01) was deployed off Sezela, about 79km south of Durban, at a depth of 30m, between June 2009 and July 2010. Three moorings (Dbn01, Dbn02, and Dbn03) were deployed off Durban at depths of 50m, 420m, and 570m, respectively, between January 2009 and September 2010, and two moorings (RiB01 and RiB02) were deployed off Richards Bay at depths of 30m and 580m, respectively, between February 2009 and September 2010. These moorings measured currents, as well as sub-surface and bottom temperatures across the continental shelf and along the continental slope of the KZN Bight. Here we present processed magnitude and direction of daily currents throughout the water column (44.35 - 524.35m) from an Acoustic Doppler Current Profiler (ADCP) at location Dbn03 (29.99°S; 31.49°E) on the continental slope off Durban, between April 2009-September 2009.
Methods	A bottom-mounted, upward-looking, 75kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was configured with a bin size of 16m and a blanking distance of 5m, and deployed at location Dbn03 (29.99°S; 31.49°E), on the continental slope of Durban. The instrument measured hourly magnitude and direction throughout the water column (44.35 - 524.35m) between 01 April 2009 and 27 September 2009. 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.82072024 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	01 Apr 2009 – 27 Sep 2009
Geographic extent	KwaZulu-Natal, South Africa North: -29.0 South: -31.0 West: 31.0 East: 33.0
Vertical extent	Max: -524.35 m Min: -44.35 m
Keywords	ACEP III - Ecosystem Processes in the KwaZulu-Natal Bight, ADCP, currents, INDIAN OCEAN, moorings, temperature
Related resources	This digital object is new version of Raw ADCP data for short-term observations of currents on the continental slope off Natal Bight, along the east coast of South Africa at location Dbn03 (April 2009 - September 2009) (10.15493/DEA.MIMS.136072024) This digital object is part of Short-term observations of currents and sub-surface temperatures on the continental shelf and slope along the KwaZulu-Natal Bight, along the east coast of South Africa (project period 2009-2013) (10.15493/DEA.MIMS.78072024)

Cite 10.15493/DEA.MIMS.82072024

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