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Title Processed CTD continuous observations from the Demersal South Coast Biomass Survey on the Africana Voyage 129, April 1995
Authors

Tutt, Gavin
Department of Forestry, Fisheries and the Environment

Lamont, Tarron
Department of Forestry, Fisheries and the Environment

Publisher Department of Forestry, Fisheries and the Environment (2026)
Contributors

Contact Person: Tutt, Gavin
Department of Forestry, Fisheries and the Environment, email: Gtutt@dffe.gov.za

Abstract Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 23 April 1995 and 15 May 1995, during the Demersal South Coast Biomass Survey on the Africana Voyage 129, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa. The main objective of the cruise was to survey demersal fish stocks and collect hydrological data.
Methods 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. 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 erroneous values resulting from problems including electronic spikes, data collection in air, and inadequate flow through the conductivity cell were removed.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 23 Apr 1995 – 15 May 1995
Geographic extent

Agulhas Current Large Marine Ecosystem

North: -33.5
South: -36.5
West: 20.0
East: 27.0

Keywords completed , CTD , DENSITY , INDIAN OCEAN , Ocean salinity , OCEAN TEMPERATURE , OCEANS , SALINITY , Subsurface salinity , Subsurface temperature , textTable , WGS 84
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