cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15493/dea.mims.25010014
title: Processed underway Thermosalinograph (TSG) observations from the SA Agulhas II Voyage 042, April 2020

description: SA Agulhas II Voyage 042
description: 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). Here we present the 10-second resolution processed TSG data collected, between 21 April 2020 and 15 May 2020, during Voyage 042 on the SA Agulhas II.
description: 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 Data Processing Software. The software was set to record data at 10 second intervals for the duration of the cruise, between 21 April 2020 and 15 May 2020. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, and in the Southern Ocean. Unreliable TSG measurements can result from a variety of problems encountered during the cruises, including insufficient water flow, extreme air bubbling during severly 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.
DOI: 10.15493/dea.mims.25010011
title: South African National Antarctic Expedition (SANAE) on the SA Agulhas II Voyage 041, December 2019

description: The South African National Antarctic Expedition (SANAE) is an annual cruise undertaken by the Department of Environment, Forestry and Fisheries (DEFF) to change the overwintering teams in Antarctica and to replenish the supplies at the SANAE IV Research base. This voyage was to deliver the SANAE 59 team to the island and return with the SANAE 58 team. The cruise was undertaken on the SA Agulhas II Voyage 041 between 12 December 2019 and 27 February 2020 with a full scientific complement.
DOI: 10.15493/dea.mims.20210419
title: Agulhas System Climate Array (ASCA) cruise on SA Agulhas II Voyage 037, July 2019

description: The Agulhas System Climate Array (ASCA) is a mooring array and is designed to provide long-term observations of the Agulhas Current's volume, heat and salt transport and its variability from mesoscale (eddies), through seasonal to interannual timescales. The ASCA shelf and tall moorings extend 200 km offshore along decending TOPEX/Jason satellite ground track # 96, through the core of the Agulhas Current, with CPIES measurements extending the array to 300km offshore of Port Elizabeth. The data collected during the ASCA project have been obtained from various oceanographic instrumentation. This data was collected during the ASCA cruise on the SA Agulhas II Voyage 037 between 01 and 16 July 2019.
DOI: 10.15493/dea.mims.25010009
title: Processed underway Thermosalinograph (TSG) observations from the SA Agulhas II Voyage 036, April 2019

description: SA Agulhas II Voyage 036
description: 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). Here we present the 10-second resolution processed TSG data collected, between 10 April 2019 and 14 May 2019, during Voyage 036 on the SA Agulhas II.
description: 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 Data Processing Software. The software was set to record data at 10 second intervals for the duration of the cruise, between 10 April 2019 and 14 May 2019. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, and in the Southern Ocean. 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.
DOI: 10.15493/dea.mims.20210421
title: Raw underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 037, July 2019

description: Agulhas System Climate Array (ASCA)
description: 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). Here we present the 10-second resolution raw TSG data collected between 01 July 2019 and 11 July 2019, during Voyage 037 on the SA Agulhas II.
description: 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. The software was set to record data at 10 second intervals for the duration of the cruise, between 01 July 2019 and 11 July 2017. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, in the eastern part of the South Atlantic Ocean, and in the Southern Ocean.
DOI: 10.15493/dea.mims.25010008
title: Raw underway Thermosalinograph (TSG) observations from the SA Agulhas II Voyage 035, November 2018

description: SA Agulhas II Voyage 035
description: 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). Here we present the 6-second resolution raw TSG data collected, between 30 November 2018 and 14 March 2019, during Voyage 035 on the SA Agulhas II.
description: 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. The software was set to record data at 6 second intervals for the duration of the cruise, between 30 November 2018 and 14 March 2019. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, in the eastern part of the South Atlantic Ocean, and in the Southern Ocean.
DOI: 10.15493/dea.mims.25010015
title: Raw underway Thermosalinograph (TSG) observations from the SA Agulhas II Voyage 042, April 2020

description: SA Agulhas II Voyage 042
description: 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). Here we present the 10-second resolution raw TSG data collected, between 21 April 2020 and 15 May 2020, during Voyage 042 on the SA Agulhas II.
description: 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. The software was set to record data at 10 second intervals for the duration of the cruise, between 21 April 2020 and 15 May 2020. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, and in the Southern Ocean.
DOI: 10.15493/dea.mims.26052267
title: Marion Island Relief Voyage on the SA Agulhas II Voyage 030, April 2018

description: The Marion Island Relief Voyage was conducted on the SA Agulhas II Voyage 030 from 13 April to 28 April 2018. The 2018 Marion Relief Voyage 030 offered the 6th opportunity to conduct multi-disciplinary, shipbased marine research focusing on links and interactions between air and sea, ocean physics, chemistry, biogeochemistry and biology, including microbial and planktic communities on board South Africa’s polar research and supply vessel MV SA Agulhas II en route to, and around, the sub-Antarctic Prince Edward archipelago. The overall aim was to continue contributing to an oceanographic observation and monitoring system directed by South African research institutions in support of South Africa’s needs – and where possible, in support of global requirements of inter alia the Global Oceans Observing System (GOOS), the Southern Ocean Observing System (SOOS), the Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), and the Agreement on the Conservation of Albatrosses and Petrels (ACAP).
DOI: 10.15493/dea.mims.01412023
title: Raw near-surface underway temperature and salinity (TSG) observations from the SEAmester and ASCA Scientific Cruise on the SA Agulhas II Voyage 052, June 2022

description: SA Agulhas II Voyage 052
description: Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected on the SEAmester and Agulhas System Climate Array (ASCA) Scientific Cruise on the SA Agulhas II Voyage 052 between 27 June and 07 July 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 objective of the SEAmester cruise was to undertake the ASCA transect across the Agulhas Current and sample the 20 CTD stations done previously. In addition, SEAmester shallow (200 m) CTD training stations would take place each day at 10am and 4pm for the students. Due to the change of plans requested of the SEAmester team to undertake a medical evacuation at Marion Island, the science team opted to instead study a trapped lee-edge cyclonic eddy formed due to an early retroflection of the Agulhas Current. The timing of the cruise provided a unique opportunity to study a phenomena rarely occurring, and the placement allowed the vessel to be positioned closer to Marion Island when weather allowed for the medical evacuation from Marion Island.
description: 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. The software was set to record data at 6 second intervals for the duration of the cruise, between 27 June 2022 and 07 July 2022. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, the Agulhas Current Large Marine Ecosystem (ACLME), on the south and east coast of South Africa, and in the Southern Ocean.
DOI: 10.15493/dea.mims.09992023
title: Raw underway Thermosalinograph (TSG) observations from the Southern Ocean Seasonal Experiment 2022 on the SA Agulhas II Voyage 053, July 2022

description: 6-second resolution raw Thermosalinograph (TSG) data collected between 12 July and 30 July 2022 on the SA Agulhas II Voyage 053.
description: Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 12 July and 30 July 2022 on the SA Agulhas II Voyage 053. 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). This cruise was included as a final component of the SCALE programme (Southern oCean seAsonaL Experiment, https://scale.org.za), a bottom-up endeavour of the SA scientific community to address the limited multidisciplinary knowledge on the seasonal cycle of the Southern Ocean. The seasonal cycle is an important mode of variability that couples the physical mechanisms of climate forcing to ecosystem response in phytoplankton diversity, primary production, and carbon export. Model simulations of the Southern Hemisphere tend to misestimate the magnitude and miss the timing of the Southern Ocean seasonal cycle both in terms of the seasonality of surface ocean warming and cooling, sea ice advancement/retreat, carbon dioxide exchanges and simulated primary production. Our capability to predict the ongoing shifts and future responses is therefore limited. This drives the need for more physical and biogeochemical data sets that address the problem of knowledge and model biases; firstly, to identify them, and secondly to characterise the associated mechanisms that will allow improved projections.
description: 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 data processing software. The software was set to record data at 6 second intervals for the duration of the cruise, between 12 July and 30 July 2022. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region and in the Southern Oceans.
DOI: 10.15493/dea.mims.01422023
title: Raw Expendable Bathythermograph (XBT) casts collected during the 2022 Marion Relief Voyage on the SA Agulhas II Voyage 051, May 2022

description: SA Agulhas II Voyage 051
description: Here we present 49 raw Expendable Bathythermograph (XBT) casts collected in the South West Indian Ridge area and along the Crossroads Transect, between 18 May 2022 and 21 May 2022, during the 2022 Marion Relief Voyage on the SA Agulhas II Voyage 051. The South African component of the international South Atlantic Meridional Overturning Circulation project (SAMOC-SA) aims to characterise the time-mean and time-varying components of the SAMOC in the South Atlantic Ocean and monitor the variability of the main Southern Ocean frontal systems associated with the Antarctic Circumpolar Current (ACC), south of Africa. The Crossroads monitoring line, directly under the altimetry track N198, is sampled annually during the Marion Relief voyages, using a combination of Conductivity, Temperature, Depth (CTD) stations and XBT casts, where the XBT casts are done, at set intervals, between CTD stations to complement the CTD data. The 2022 Marion Relief Voyage 051 offered the 10th opportunity to conduct multi-disciplinary, ship-based oceanographic research on board the SA Agulhas II en route to, from, and around, the sub-Antarctic Prince Edward Islands (PEI’s). 
description: Sippican WinMK21 Data Acquisition and Post-Processing Software is used for data collection of T7 Deep Blue XBT probes. The data is collected in *.bin format and then converted to *.txt files using software. The *.txt files contain some metadata at the top of file, but not always fully completed by operators. There is no editing done to the data in the acquisition software and so the bottom readings, where the XBT loses signal, have not been removed for the 49 XBT casts.
DOI: 10.15493/dea.mims.01122023
title: Marion Island Relief Voyage on the SA Agulhas II Voyage 051, March 2022

description: The Marion Island Relief Voyage was conducted on the SA Agulhas II Voyage 051 from 31 March to 23 May 2022. The 2022 Marion Relief Voyage 051 offered the 10th opportunity to conduct multi-disciplinary, ship-based oceanographic research on board the SA Agulhas II en route to, from, and around, the sub-Antarctic Prince Edward Islands (PEI’s). For the first time since the start of the global pandemic, 17 berths were allocated for ship-based scientists, but due to the helicopter logistics still being ship-based no additional research time was allocated and ship-based research was capped to 13 days before the voyage. This meant 10 days of research was allocated to the area around the PEI’s and 3 days allocated to the return leg to Cape Town, to enable the sampling of the Crossroads Transect. Thus, not all the approved NRF-funded SANAP projects could be accommodated. Similarly, annual ship-based research and long-term monitoring conducted by the Oceans & Coasts Research Branch of the Department of Forestry, Fisheries and the Environment (DFFE) was substantially reduced. The ship-based research was conducted as a joint multi-institutional, multidisciplinary effort with scientists, research technicians, interns and students from the Department of Forestry, Fisheries and the Environment: Oceans and Coasts Research (DFFE-OCR), the University of Cape Town (UCT), the South African Environmental Observation Network (SAEON) and the University of Pretoria (UP) all collaborating to achieve a variety of research and monitoring project objectives.
DOI: 10.15493/dea.mims.01352023
title: Processed near-surface underway temperature and salinity (TSG) observations from SA Agulhas II Voyage 049, December 2021

description: SA Agulhas II Voyage 049
description: Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 03 December 2021 and 28 January 2022 during the South African National Antarctic Expedition (SANAE) cruise on the SA Agulhas II Voyage 049. 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 South African National Antarctic Expedition (SANAE) is an annual voyage undertaken by the Department of Forestry, Fisheries and the Environment (DFFE) to change the overwintering teams in Antarctica and to replenish the supplies at the SANAE IV Research base. This voyage was to deliver the SANAE 61 over wintering team to the research base and return with the SANAE 60 team.
description: 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 data processing software. The software was set to record data at 6 second intervals for the duration of the cruise, between 03 December 2021 to 28 January 2022. Data was collected in the southern part of the Benguela Current Large Marine Ecosystem (BCLME) region, on the west and south coasts of South Africa, in the eastern part of the South Atlantic Ocean, and in the Southern Ocean. 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.