Title Short-term observations of hourly sub-surface temperatures on the continental shelf and slope off Port Edward, along the east coast of South Africa at location P6 (July 2011 - December 2011)
Project Shelf Circulation Patterns off Port Edward
Authors

Gavin Louw
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientific Technician 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, glouw@environment.gov.za

Marcel van den Berg
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientific Technician 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, mvdberg@environment.gov.za

Tarron Lamont
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientist 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, tlamont@environment.gov.za

Publisher Department of Forestry, Fisheries and the Environment (2020)
Contributors

Contact Person: Gavin Louw
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientific Technician 2nd Floor, Foretrust Building, Martin Hammerschlag Way, Cape Town, South Africa, mrgavinl@gmail.com

Abstract Between 2005 and 2015, multiple short-term studies were conducted to determine the characteristics of moorings deployed in a region heavily influenced by the strong Agulhas Current, and to examine circulation patterns across the continental shelf and slope off Port Edward, along the east coast of South Africa. Three moorings (P1, P2, and P3) were deployed, just south of Port Edward at depths of 36m, 64m, and 162m, respectively, between September 2005 and September 2006, to measure currents and bottom temperatures across the inner shelf. A further three moorings (P4, P5, and P6) were deployed off Port Edward over the period September 2010 to June 2015, at depths of 217m, 1060m, and 2000m, to measure currents and sub-surface temperatures across the outer shelf and slope. Here we present hourly sub-surface temperatures from two ADCPs at depths of 496 m and 510 m at location P6 (31.1914°S; 30.4499°E) on the outer shelf and slope off Port Edward, between 21 July 2011 and 04 December 2011.
Methods A sub-surface, upward-looking, 75 kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was deployed at location P6 (31.1914°S; 30.4499°E), on the outer shelf and slope of Port Edward, along the east coast of South Africa. A temperature sensor on the instrument measured hourly temperature readings between 21 July 2011 12h00 and 04 December 07h00, at depth of 496m and 510 m.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 21 Jul 2011 – 04 Dec 2011
Geographic extent

Port Edward, South Africa

Lat: -31.1914
Lon: 30.4499

Vertical extent Max: -496.0 m
Min: -510.0 m
Keywords ADCP, continental shelf, continental slope, INDIAN OCEAN, moorings, Port Edward, temperature
Related resources
  • This digital object is part of Short-term observations of currents and sub-surface temperatures on the continental shelf and slope off Port Edward, along the east coast of South Africa (10.15493/dea.mims.26052103)