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,...

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...

DOI: 10.15493/dea.mims.26052227
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 210, September 2014

The South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean was conducted on the Algoa Voyage 210, 15 to 29 September, 2014. This cruise had a primary scientific objective of extending the SAMBA mooring line, the offshore section of the Cape Point long-term monitoring line, and deploying the four offshore tall moorings. Four tall moorings were recovered, serviced and re-deployed on the SAMBA transect, incorporating ADCP’s...

DOI: 10.15493/dea.mims.26500009
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 268, February 2020

The Integrated Ecosystem Programme: Southern Benguela (IEP:SB) was conducted on the Algoa Voyage 286, February 2020. Multi-disciplinary, multi-institutional platform to undertake relevant science in the Southern Benguela; also functioning as a platform for collaboration and learning. All projects aim to develop an ecosystem indicator that can be used to effectively monitor and understand the Southern Benguela i.e physical, chemical, planktonic, microbial, seabird and benthic ecosystem...

DOI: 10.15493/dea.mims.26052228
West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 211, October 2014

The West Coast Cetacean Distribution and Abundance Survey was conducted on the Algoa Voyage 211, 28 October to 10 November 2014. The cruise operated on the shelf and slope regions off the West Coast of South Africa, between Dassen Island and Groenriviermond. The major objective of this cruise was to survey the abundance and distribution of cetaceans, in particular humpback whales, within the study area on the west coast. This objective, along with the research aims and proposed...

DOI: 10.15493/dea.mims.26052256
South African National Antarctic Expedition (SANAE) on the SA Agulhas II Voyage 005, December 2012

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 52 team to the island and return with the SANAE 51 team. The cruise was undertaken between 06 December 2012 and 19 February 2013 with full scientific complement.

DOI: 10.15493/dea.mims.26052217
St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 195, March 2013

The St Helena Bay Monitoring Line, which now falls under the Integrated Ecosystem Programme: Southern Benguela, was conducted on the Algoa Voyage 195, 4 to 8 March, 2013. The St Helena Bay Monitoring Line was initiated as a BENEFIT-driven project on "shipboard monitoring" which linked with similar lines run in Namibia and Angola. The aims are to obtain seasonal and interannual information on the hydrology and productivity of the area. Data on harmful algal blooms, low oxygen water and...

DOI: 10.15493/DEA.MIMS.11882023
Pelagic Fish Biomass Survey on the Africana Voyage 078, November 1989

The Pelagic Fish Biomass Survey was conducted on the Africana Voyage 078 from 7 - 30 November 1989. The objectives of the cruise were to conduct an estimation of the biomass and population structure of anchovy, pilchard and round herring off South Africa by means of echo-integration and midwater trawling; to conduct an estimation of anchovy biomass by means of the egg production method; to describe the distribution and behaviour patterns of commercially harvested epi-pelagic and meso-pelagic...

DOI: 10.15493/DEA.MIMS.11832023
South-east Atlantic Expedition on the Africana Voyage 071, April 1989

The South-east Atlantic Expedition was conducted on the Africana Voyage 071 from 4 April - 2 May 1989. The South-east Atlantic Expedition had as its main objectives the investigation of the distribution and abundance of phyllosoma larvae of Jasus in the Cape Basin, a comparative study of larval recruitment of Jasus tristani and Jasus lalandii, and the investigation of the circulation in, and ventilation of, the south western Cape Basin. The work was aimed at improving the understanding of...

DOI: 10.15493/DEA.MIMS.11842023
Anchovy Recruitment Survey on the Africana Voyage 073, June 1989

The Anchovy Recruitment Survey was conducted on the Africana Voyage 073 from 8 - 22 June 1989. The survey objectives were to assess anchovy recruitment strength in South African waters in order to recommend a final quota for the 1989 RSA anchovy fishing season; to collect data for the determination of the target strength of anchovy and other pelagic and mesopelagic species; to collect data on shoaling behaviour of pelagic fish, specifically anchovy, pilchard and red-eye; to investigate...

DOI: 10.15493/DEA.MIMS.20112022
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 277, November 2021

This Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise was conducted on the Algoa Voyage 277 in November 2021. This is a long-term monitoring line conducted off the coast of Kleinsee, Namaqualand, Elands/St Helena Bay and Scarborough on the west coast of South Africa. 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...

DOI: 10.15493/DEA.MIMS.11822023
Physical-Chemical Oceanography Cruise on the Africana Voyage 070, March 1989

The Physical-Chemical Oceanography Cruise was conducted on the Africana Voyage 070 from 2 - 11 March 1989. The objectives of the cruise were to retrieve six acoustic current meters deployed in September 1988; to recover and redeploy the sequentially sampling sediment trap and the two Anderaa current meters incorporated on the array at a position 90 miles west of Walvis Bay; to repeat a line of Conductivity-Temperature-Depth (CTD) stations running at right angles to the shelf from the 4000m...

DOI: 10.15493/DEA.MIMS.11852023
South West African Pilchard and Anchovy Biomass Survey on the Africana Voyage 074, June 1989

The South West African Pilchard and Anchovy Biomass Survey was conducted on the Africana Voyage 074 from 22 June - 4 July 1989. The objectives of the survey were to undertake an acoustic / trawling survey of the pilchard stock off SWA and arrive at a stock estimate; to survey the horse-mackerel and anchovy stocks off South West Africa (SWA) and obtain stock estimates if possible and to collect the environmental information on the habitat of the above species primarily by means of...

DOI: 10.15493/dea.mims.20210217
Physical Oceanography Cruise on the Africana Voyage 014, December 1983

The Physical Oceanography Cruise was on the Africana Voyage 014 between the 5th and 15th of December 1983. Research was conducted from Cape Point to Chamais Bay along the south-west coast of South Africa. This cruise was aimed primarily at current profiling along the west coast.

DOI: 10.15493/dea.mims.26052267
Marion Island Relief Voyage on the SA Agulhas II Voyage 030, April 2018

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...

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)
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...

(No DOI)
Processed Conductivity Temperature Depth (CTD) data collection from the International Indian Ocean Expedition 2 (IIOE2) cruise on SA Agulhas II Voyage 028, October 2017

This is processed Conductivity, Temperature, Depth (CTD) data from the IIOE2 on SA Agulhas II Voyage 028 from October - November, 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.

DOI: 10.15493/dea.mims.26052246
Leg 1 of the African Coelacanth Ecosystem Programme (ACEP) II on the Algoa Voyage 177, July 2010

The Algoa sailed from Durban on 16 July 2010 to conduct a hydrographic survey of the Natal Bight as part of the winter African Coelacanth Ecosystem Programme (ACEP) II. A total of 16 shore-normal transects were occupied between Scottburgh and St. Lucia. The aim of the synoptic survey was to determine the nutrient sources of the Natal Bight ecosystem, and to characterise the focus sites across the Bight.

DOI: 10.15493/dea.mims.26052361
West Coast Physical Oceanography Cruise on the Africana Voyage 006, February 1983

The West Coast Physical Oceanography Cruise on the Africana Voyage 006 was held between 21 February and 02 March 1983. Research was conducted in St Helena Bay, Table Bay and Olifantsbos on the south-west coast of South Africa. This cruise was aimed primarily at current profiling and studies of the thermohaline structure of the shelf and slope zones.

(No DOI)
Raw Shipboard Acoustic Doppler Current Profiler (SADCP) data from the International Indian Ocean Expedition 2 (IIOE2) cruise on SA Agulhas II Voyage 028, October 2017

This is raw Shipboard Acoustic Doppler Current Profiler (SADCP) data from the IIOE2 cruise on SA Agulhas II Voyage 028 in 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)
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,...