Title Raw underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 032, June 2018 - July 2018
Project International Indian Ocean Expedition 2 (IIOE2)
Authors

Jacobs, Leon
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician;

Frantz, Franklin
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment; role: Marine Research Assistant;

van den Berg, Marcel
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician;

Lamont, Tarron
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment; role: Marine Scientist;

Publisher Department of Forestry, Fisheries and the Environment (2025)
Contributors

Contact Person: van den Berg, Marcel
Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician; email: mvandenberg.dea@gmail.com

Abstract Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected, between 10 June 2018 and 13 July 2018, during voyage 032 on the SA Agulhas II. A SeaBird SBE45 Thermosalinograph (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 7m 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 Dataprocessing software. The software was set to record data at 6 second intervals for the duration of the cruise, between 10 June and 13 July 2018. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region and in the Agulhas Current Large Marine Ecosystem (ACLME) region.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 10 Jun 2018 – 13 Jul 2018
Geographic extent
1000 km
Leaflet Tiles © Esri — Source: Esri, DeLorme, NAVTEQ, USGS, Intermap, iPC, NRCAN, Esri Japan, METI, Esri China (Hong Kong), Esri (Thailand), TomTom, 2012

Benguela Current Large Marine Ecosystem (BCLME), Agulhas Current Large Marine Ecosystem (ACLME)

North: 0.0
South: -36.0
West: 17.0
East: 46.0

Vertical extent Max: -7.0 m
Min: -7.0 m
Keywords conductivity, EOV: Physics > Sea surface salinity, EOV: Physics > Sea surface temperature, INDIAN OCEAN, near-surface, salinity, SBE45 Thermosalinograph (TSG), SOUTH ATLANTIC OCEAN, SST, temperature, THERMOSALINOGRAPH
Related resources
  • This digital object is part of International Indian Ocean Expedition 2 (IIOE2) cruise on SA Agulhas II Voyage 032, June 2018 (10.15493/dea.mims.26052268)
  • This digital object is previous version of Processed underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 032, June 2018 - July 2018 (10.15493/DEA.MIMS.17042025)