| Title | Processed CTD discrete observations from the West Coast Hake Biomass Survey on the Africana Voyage 109, January 1993 |
|---|---|
| Project | West Coast Hake Biomass |
| Authors |
Makhetha, Mbulelo Tutt, Gavin Lamont, Tarron |
| Publisher | Department of Forestry, Fisheries and the Environment (2024) |
| Contributors |
Contact Person: Tutt, Gavin |
| Abstract | Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 19 January and 08 February 1993, during voyage 109 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west 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 | 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 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 | |
| Temporal extent | 20 Jan 1993 – 06 Feb 1993 |
| Geographic extent |
Benguela Current Large Marine Ecosystem (BCLME)
North: -28.5 |
| Vertical extent |
Max: -520.0 m Min: -1.0 m |
| Keywords | Africana , Africana 109 , Conductivity , CTD , Depth , EOV: Physics > Subsurface salinity , EOV: Physics > Subsurface temperature , Neil Brown CTD , SOUTH ATLANTIC OCEAN , Temperature |
| Related resources |
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