DOI: 10.15493/dea.mims.26052151
Processed Expendable Bathythermograph (XBT) casts collected during the 2014 Marion Relief Voyage on SA Agulhas Voyage 011

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,...

(No DOI)
Preliminary processed CTD discrete observations from the Algoa Voyage 246, February 2018

SeaBird CTD Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column. During some cruises additional instruments for oxygen, fluorescence, Photosynthetically Available Radiation (PAR), Surface PAR (SPAR), turbidity, beam attenuation, beam transmission measurements were connected to the CTD unit. Here we present preliminary processed CTD discrete data from the upcast collected between 15 February 2018 and 22 February...

DOI: 10.15493/dea.mims.25010001
Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 268, February - March 2020

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...

DOI: 10.15493/DEA.MIMS.01202023
Raw underway Thermosalinograph (TSG) observations from the SAMBA Monitoring Line cruise on the Algoa Voyage 275, September 2021

Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected on the Algoa Voyage 275 on the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean, between 13 September and 3 October 2021. 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...

(No DOI)
Preliminary processed CTD data from SANAE on SA Agulhas II Voyage 022, November 2016

The South African National Antarctic Expedition (SANAE) is an annual cruise undertaken by the Department of Environmental Affairs (DEA) 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 56 team to the island and return with the SANAE 55 team. The cruise was undertaken between 30 November 2016 and 07 February 2017 with a full scientific complement. This processed Conductivity, Temperature, Depth...

DOI: 10.15493/dea.mims.26052266
International Indian Ocean Expedition 2 (IIOE2) cruise on SA Agulhas II Voyage 028, October 2017

The International Indian Ocean Expedition 2 is a collaborative regional cruise to build capacity and strength within Africa. The focus will be on developing students in the region in the areas of physical oceanography, chemistry, biological oceanography, benthic biodiversity, marine top predators and marine plastics.

(No DOI)
Raw CTD data from SANAE on SA Agulhas II Voyage 022, November 2016

The South African National Antarctic Expedition (SANAE) is an annual cruise undertaken by the Department of Environmental Affairs (DEA) 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 56 team to the island and return with the SANAE 55 team. The cruise was undertaken between 30 November 2016 and 07 February 2017 with a full scientific complement. This raw Conductivity, Temperature, Depth (CTD)...

(No DOI)
Processed PCO2 data from the International Indian Ocean Expedition 2 cruise on the SA Agulhas II Voyage 028, October 2017

This is processed PCO2 data from the International Indian Ocean Expedition 2 (IIOE2) cruise on SA Agulhas II Voyage 028 in October 2017. The IIOE2 is a collaborative regional cruise to build capacity and strength within Africa. The focus will be on developing students in the region in the areas of physical oceanography, chemistry, biological oceanography, benthic biodiversity, marine top predators and marine plastics.

DOI: 10.15493/dea.mims.26052157
Processed Expendable Bathythermograph (XBT) casts collected during the 2017 Marion Relief Voyage on SA Agulhas Voyage 024

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,...

DOI: 10.15493/dea.mims.26500005
Processed Dissolved Inorganic Carbon (DIC) and Total Alkalinity (TA) data from the International Indian Ocean Expedition 2 (IIOE2) cruise on SA Agulhas II Voyage 032, June 2018

This is processed Dissolved Inorganic Carbon (DIC) and Total Alkalinity (TA) data from the IIOE2 cruise on SA Agulhas II Voyage 032, between 18 June and 30 June 2018. The International Indian Ocean Expedition 2 is a collaborative regional cruise to build capacity and strength within Africa. The focus will be on developing students in the region in the areas of physical oceanography, chemistry, biological oceanography, benthic biodiversity, marine top predators and marine plastics.

DOI: 10.15493/dea.mims.26052162
Processed Expendable Bathythermograph (XBT) casts collected during the 2020 Marion Relief Voyage on SA Agulhas Voyage 042

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,...

(No DOI)
Hybrid Coordinate Ocean Model (HYCOM) EnOI Version 1.1 Raw (L3R) Regional Agulhas 10km Ocean State Estimate 2009

The greater Agulhas Current is one of the most energetic current systems in the global ocean. It plays a fundamental role in determining the mean state and variability of the regional marine environment, affecting its resources and ecosystem, the regional weather and the global climate on a broad range of temporal and spatial scales. In the absence of a coherent in-situ and satellite-based observing system in region, modelling and data assimilation techniques play a crucial role in both...

DOI: 10.15493/DEA.MIMS.26052101
Bottom-mounted Acoustic Doppler Current Profilers (ADCP) from three nearshore moorings in St Helena Bay, South Africa, Feb-Apr 2011

Concurrent nearshore measurements of current velocity from three moorings offshore of Elands Bay, within St Helena Bay, Southern Benguela, in water depths of ~22 m (mooring 3), ~50 m (mooring 2) and ~62 m (mooring 1). The data were originally presented in "Lucas, A. J., Pitcher, G. C., Probyn, T. A., & Kudela, R. M. (2014, March). The influence of diurnal winds on phytoplankton dynamics in a coastal upwelling system off south-western Africa. Deep Sea Research Part II: Topical Studies in...

DOI: 10.15493/dea.mims.26052158
Raw Expendable Bathythermograph (XBT) casts collected during the 2019 Marion Relief Voyage on SA Agulhas Voyage 036

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,...

DOI: 10.15493/dea.mims.25010014
Processed underway Thermosalinograph (TSG) observations from the SA Agulhas II Voyage 042, April 2020

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...

DOI: 10.15493/dea.mims.25010015
Raw underway Thermosalinograph (TSG) observations from the SA Agulhas II Voyage 042, April 2020

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...

DOI: 10.15493/DEA.MIMS.01352023
Processed near-surface underway temperature and salinity (TSG) observations from SA Agulhas II Voyage 049, December 2021

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...

DOI: 10.15493/DEA.MIMS.12652023
Cape Canyon Suspended Particulate Matter CTD water sample

The Cape Canyon, situated on the western continental shelf of South Africa, stands as the country's largest bathymetric feature. Despite its prominence, understanding of the food web dynamics within the system and the significance of the benthic community for higher trophic levels remains incomplete. In response to this knowledge gap, the DFFE: Oceans and Coasts launched a multidisciplinary expedition aboard the RV Algoa. The expedition aimed to characterise the physical environment and...

(No DOI)
Processed and Corrected CTD data from Gough Island Relief / Tristan da Cunha on SA Agulhas II Voyage 009, September 2013

This is processed and corrected Conductivity, Temperature, Depth (CTD) data from the Gough Island Relief / Tristan da Cunha cruise on the SA Agulhas II, Voyage 009 from 5 September to 10 October, 2013. This dataset was processed using older standards which may not align with international best practices and the standards currently adhered to by the Department of Forestry, Fisheries and the Environment (DFFE). The Department is re-processing and replacing data to ensure everything has the...

DOI: 10.15493/dea.mims.26052199
Marion Island Relief Voyage on the SA Agulhas II Voyage 015, April 2015

The Marion Island Relief Voyage was conducted on the SA Agulhas II Voyage 015 from 9 April to 15 May, 2015. The 2015 Marion Relief Voyage on board South Africa’s polar research and supply vessel MV SA Agulhas II offered yet another opportunity to conduct multi-disciplinary ship-based oceanographic research focusing on links and interactions between air and sea, ocean physics, chemistry, biogeochemistry and biology, including microbial, planktic and benthic communities. The overall aim was to...

DOI: 10.15493/DEA.MIMS.09852023
Southern Ocean Seasonal Experiment 2022 (SCALE-WIN22) on the SA Agulhas II Voyage 053, July 2022

This cruise, conducted on the SA Agulhas II Voyage 053 in July 2022, 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,...

DOI: 10.15493/DEA.MIMS.01322023
Raw near-surface underway temperature and salinity (TSG) observations from the Marion Island Relief Voyage on the SA Agulhas II Voyage 051, March 2022

Here we present the 6-second resolution raw Thermosalinograph (TSG) data collected between 16 April 2022 and 22 May 2022 on the Marion Island Relief Voyage was conducted on the SA Agulhas II Voyage 051. 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...

DOI: 10.15493/DEA.MIMS.07122024
Raw Expendable Bathythermograph (XBT) casts from the Marion Island Relief Voyage on the SA Agulhas II Voyage 062, May 2024

Here we present 59 raw Expendable Bathythermograph (XBT) casts collected along the Crossroads Transect, between 13 May 2024 and 15 May 2024, during the 2024 Marion Relief Voyage on the SA Agulhas II Voyage 062. 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...

DOI: 10.15493/DEA.MIMS.11782023
Processed CTD discrete observations from the West Coast Hake Biomass on the Africana Voyage 079, January 1990

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 04 January and 29 January 1990, during Voyage 079 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/dea.mims.20210420
Processed underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 037, July 2019

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...

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

Temporal extent