Title Short-term observations of daily bottom temperatures on the continental shelf and slope off Port Edward, along the east coast of South Africa at location P2 (April 2006 - September 2006)
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 processed daily bottom temperatures from an ADCP at a depth of 64m at location P2 (31.19728°S; 30.17488°E) on the inner shelf off Port Edward, between 11 April 2006 and 08 September 2006.
Methods A bottom-mounted, upward-looking, 600 kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was deployed at location P2 (31.19728°S; 30.17488°E), on the inner shelf just south of Port Edward, along the east coast of South Africa. A temperature sensor on the instrument measured hourly temperature readings between 11 April 2006 and 08 September 2006, at a depth of 64m. These hourly values were averaged to daily means. 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)
Temporal extent 11 Apr 2006 – 08 Sep 2006
Geographic extent

Port Edward, South Africa

Lat: -31.19728
Lon: 30.17488

Vertical extent Max: -64.0 m
Min: -64.0 m
Keywords ADCP, continental shelf, continental slope, INDIAN OCEAN, moorings, Port Edward, temperature
Related resources
  • This digital object continues Short-term observations of daily bottom temperatures on the continental shelf and slope off Port Edward, along the east coast of South Africa at location P2 (December 2005 - April 2006) (10.15493/dea.mims.26052125)
  • 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)