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 P5 (July 2014 - June 2015)
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 493m and 499m at location P5 (31.1243°S; 30.3361°E) on the outer shelf and slope off Port Edward, between 16 July 2014 and 19 June 2015.
Methods A sub-surface, upward-looking, 75 kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was deployed at location P5 (31.1243°S; 30.3361°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 16 July 2014 09h50 and 19 June 2015 06h50, at depths of 493m and 499m.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 16 Jul 2014 – 19 Jun 2015
Geographic extent

Port Edward, South Africa

Lat: -31.1243
Lon: 30.3361

Vertical extent Max: -493.0 m
Min: -499.0 m
Keywords ADCP, continental shelf, continental slope, INDIAN OCEAN, moorings, Port Edward, temperature
Related resources
  • This digital object continues 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 P5 (May 2011 - December 2011) (10.15493/dea.mims.26052140)
  • 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)