Name: Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 232, November 2016
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.38062025

Title	Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 232, November 2016
Project	Integrated Ecosystem Programme: Southern Benguela (IEP:SB)
Authors	Frantz, Franklin Department of Forestry, Fisheries and the Environment; role: Marine Research Assistant Anders, Darrel Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician Jacobs, Leon Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician van den Berg, Marcel Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician Lamont, Tarron 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 Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician; email: mvdberg@dffe.gov.za
Abstract	Here we present the 6-second resolution processed TSG data collected between 18 November 2016 and 24 November 2016, during Voyage 232 on the Algoa. 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 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 Dataprocessing software. The software was set to record data at 6 second intervals for the duration of the cruise, between 18 November 2016 and 24 November 2016. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region. Unreliable TSG measurements can result from a variety of problems encountered during the cruises, including insufficient water flow, extreme air bubbling during severely adverse weather conditions, debris trapped in the system, or a variety of electronic failures. Detailed visual inspection of the ship trajectory and TSG measurements, as well as comparisons with other concurrent and historical near-surface measurements, and expert knowledge of local conditions, were used to identify and remove all unreliable data.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.38062025 Style Terms of use These data are made available with the express understanding that any such use will properly acknowledge the originator(s) and publisher and cite the accession numbers and/or associated Digital Object Identifiers. Anyone wishing to use these data should properly cite and attribute the data providers listed as authors in the metadata provided with each dataset. It is expected that all the conditions of the data license will be strictly honoured. Use of any material herein should be properly cited using the dataset’s persistent identifiers such as accession numbers and DOIs. I agree to the terms of use
Temporal extent	18 Nov 2016 – 24 Nov 2016
Geographic extent	300 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 (BLMCE) and shelf region on the west coast of South Africa North: -29.0 South: -35.0 West: 14.0 East: 20.0
Vertical extent	Max: -5.0 m Min: -5.0 m
Keywords	Algoa, Algoa 232, EOV: Physics > Sea surface salinity, EOV: Physics > Sea surface temperature, SDG Goal 14. Conserve and sustainably use the oceans, seas and marine resources for sustainable development, SOUTH ATLANTIC OCEAN, THERMOSALINOGRAPH, TSG
Related resources	This digital object is new version of Raw underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 232, November 2016 (10.15493/DEA.MIMS.39062025) This digital object is part of Integrated Ecosystem Programme cruise: Southern Benguela (IEP:SB) on the Algoa Voyage 232, November 2016 (10.15493/dea.mims.26052241)

Cite 10.15493/DEA.MIMS.38062025

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