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Title Processed CTD discrete observations from the Pelagic Fish Spawner Biomass Survey on the Africana Voyage 126, November 1994
Authors

Makhetha, Mbulelo
Department of Forestry, Fisheries and the Environment

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 Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 11 November and 07 December 1994, during Voyage 126 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) on the west coast of Southern Africa and in the Agulhas Current Large Marine ecosystem (ACLME) on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
Methods 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 14 Nov 1994 – 30 Nov 1994
Geographic extent

Benguela Current Large Marine Ecosystem, Agulhas Large Marine Ecosystem

North: -31.5
South: -35.5
West: 16.5
East: 25.5

Keywords CTD , Data status: completed , INDIAN OCEAN , OCEAN PRESSURE , OCEAN TEMPERATURE , OCEANS , Pelagic Biomass Survey , SOUTH ATLANTIC OCEAN , Subsurface temperature , textTable , WGS84
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