Name: Raw underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 283, August 2022
License: https://creativecommons.org/licenses/by-sa/4.0/legalcode

DOI: 10.15493/DEA.MIMS.01282023

Title	Raw underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 283, August 2022
Project	Integrated Ecosystem Programme: Southern Benguela (IEP: SB)
Authors	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: LJacobs@dffe.gov.za Contact Person: Marcel van den Berg Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientific Technician; contact details: email: mvandenberg.dea@gmail.com Contact Person: Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE); role: Marine Scientist; contact details: email: tarron.lamont@gmail.com
Abstract	Here we present the 6-second resolution raw TSG data collected on the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 283 between 10 August and 17 August 2022. 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). The IEP:SB in 2013 consolidated a long-term, multi-decadal time-series (from 1951 onward) of information for this important region and has continued monitoring in the form of the IEP:SB. The programme is a multi-disciplinary, collaborative and capacity building platform undertaking relevant science, including updating technology, with the aim to develop ecosystem indicators that can be used to effectively monitor and understand the Southern Benguela. These include physical, chemical, planktonic, microbial, seabird, marine mammal, benthic and pollution (plastic) ecosystem indicators as required by ecosystem-based management regarding the following priorities: ocean warming, ocean acidification, trophic functioning, pollution and water quality. It is on-going monitoring programme.
Methods	The SeaBird SBE45 Thermosalinograph (TSG) is used on the 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. The software was set to record data at 6 second intervals for the duration of the cruise, between 10 August 2022 and 17 August 2022. 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) Cite 10.15493/DEA.MIMS.01282023 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	10 Aug 2022 – 17 Aug 2022
Geographic extent	Benguela Current Large Marine Ecosystem (BLMCE); shelf region on the west coast of South Africa 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 283, SOUTH ATLANTIC OCEAN, THERMOSALINOGRAPH, TSG
Related resources	This digital object is part of Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 283, August 2022 (10.15493/DEA.MIMS.23112022) 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 283, August 2022 (10.15493/DEA.MIMS.01272023)

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