Title Raw underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 060, November 2023
Authors

Leon Jacobs
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa; role: Marine Scientific Technician; contact details: email: LJacobs@dffe.gov.za

Marcel van den Berg
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa; role: Marine Scientific Technician; contact details: email: mvdberg@dffe.gov.za

Tarron Lamont
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa; role: Marine Scientist; contact details: email: tlamont@dffe.gov.za

Publisher Department of Forestry, Fisheries and the Environment (2024)
Contributors

Contact Person: Leon Jacobs
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa; role: Marine Scientific Technician; contact details: email: leon5134@gmail.com

Abstract Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 10 November and 29 November 2023 on the SA Agulhas II Voyage 060. A SeaBird SBE45 TSG is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).
Methods The SeaBird SBE45 Thermosalinograph (TSG) is used on the SA Agulhas II for the collection of underway near-surface temperature and conductivity measurements. The underway seawater is obtained from a depth of 5m below the surface and pumped through the TSG. Data is collected using the most recent SeaBird (SBE) SeaSave software and processed using the most recent SBE Data Processing software. The software was set to record data at 6 second intervals for the duration of the cruise, between 10 November and 29 November 2023. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region; the Agulhas Current Large Marine Ecosystem (ACLME) and Southern Ocean.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 10 Nov 2023 – 29 Nov 2023
Geographic extent

Benguela Current Large Marine Ecosystem (BLMCE); Agulhas Current Large Marine Ecosystem (ACLME)

North: -32.0
South: -50.0
West: 17.0
East: 40.0

Vertical extent Max: -5.0 m
Min: -5.0 m
Keywords INDIAN OCEAN, SA Agulhas II, SA Agulhas II 060, SOUTH ATLANTIC OCEAN, THERMOSALINOGRAPH, TSG
Related resources
  • This digital object is previous version of Processed underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 060, November 2023 (10.15493/DEA.MIMS.13622023)