Title Processed CTD continuous observations from the Africana Voyage 006, February 1983
Authors

Gavin Tutt
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientific Technician 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, Gtutt@environment.gov.za

Tarron Lamont
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientist 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, tlamont@environment.gov.za

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

Contact Person: Gavin Tutt
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE) Marine Scientific Technician 2nd Floor, Foretrust Building, 1 Martin Hammerschlag Way, Cape Town, South Africa, gtsglider@gmail.com

Abstract Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Here, we present processed downcast CTD continuous data collected between 22 February 1983 and 28 February 1983 during Voyage 006 on the Africana in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa.
Methods Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during Department of Environment, Forestry and Fisheries (DEFF) research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 22 Feb 1983 – 27 Feb 1983
Geographic extent

Benguela Current Large Marine Ecosystem (BLMCE), west coast of South Africa

North: -32.0
South: -34.0
West: 16.0
East: 19.0

Vertical extent Max: -0.9 m
Min: -1336.2 m
Keywords Africana, Africana 006, conductivity, continuous, CTD, Neil Brown CTD, pressure, salinity, SOUTH ATLANTIC OCEAN, temperature
Related resources