Title Raw underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 262, August 2019
Project Integrated Ecosystem Programme: Southern Benguela (IEP: SB)
Authors

Franklin Frantz
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Research Assistant; contact details: email: FFrantz@dffe.gov.za

Darrell Anders
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientific Technician; contact details: email: DAnders@dffe.gov.za

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

Publisher Department of Forestry, Fisheries and the Environment (2023)
Contributors

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

Abstract Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between between 13 August and 19 August 2019 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 262. 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). The programme is a multi-disciplinary, multi-institutional platform undertaking relevant science in the Southern Benguela; it also functions as a platform for collaboration and learning. All projects aim to develop an ecosystem indicator that can be used to effectively monitor and understand the Southern Benguela. These include physical, chemical, planktonic, microbial, seabird and benthic ecosystem indicators, used for ecosystem-based management.
Methods The SeaBird SBE45 Thermosalinograph (TSG) is used on the RS Algoa 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 13 August and 19 August 2019. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 13 Aug 2019 – 19 Aug 2019
Geographic extent

Benguela Current Large Marine Ecosystem (BLMCE)

North: -29.0
South: -35.0
West: 14.0
East: 19.0

Vertical extent Max: -5.0 m
Min: -5.0 m
Keywords Algoa, Algoa 262, SOUTH ATLANTIC OCEAN, THERMOSALINOGRAPH, TSG
Related resources
  • This digital object is part of Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 262, August 2019 (10.15493/dea.mims.26500007)
  • This digital object is previous version of Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 262, August 2019 (10.15493/DEA.MIMS.09942023)