739 datasets found Page 19 of 30
DOI: 10.15493/DEA.MIMS.14932023
Processed CTD discrete observations from the student training and acoustic trials on the Africana Voyage 115, July 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 13 July and 16 July 1993 during Voyage 115 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.14922023
Processed CTD continuous observations from the student training and acoustic trials on the Africana Voyage 115, July 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 13 July and 16 July 1993 during Voyage 115 on the FRS Africana, in the Benguela Current Large Marine Ecosysten (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.38062025
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP: SB) cruise on the Algoa Voyage 232, November 2016

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).

DOI: 10.15493/DEA.MIMS.41062025
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP: SB) cruise on the Algoa Voyage 236, March 2017

Here we present the 6-second resolution processed TSG data collected between 06 March 2017 and 26 March 2017, during Voyage 236 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).

DOI: 10.15493/DEA.MIMS.43062025
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP: SB) cruise on the Algoa Voyage 237, April 2017

Here we present the 6-second resolution processed TSG data collected between 04 April 2017 and 12 April 2017, during Voyage 237 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).

DOI: 10.15493/dea.mims.26000003
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St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 234, July 2007

This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Africana Voyage 234 in July 2007. This is a long-term monitoring line conducted off the coast of Elands/St Helena Bay on the west coast of South Africa. SHBML started in 2000 as a BENEFIT-driven project on "shipboard monitoring" which linked with similar lines run in Namibia and Angola. The aims were to obtain seasonal and interannual information on the hydrology and productivity of the area. It was incorporated under the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) in 2013 consolidating 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...

DOI: 10.15493/DEA.MIMS.605201
Analysed Particulate Organic Matter data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 235, February 2017

Particulate Organic Matter data (stable isotope) for the Integrated Ecosystem Programme: Southern Benguela (IEP:SB): Feb 2017. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterns. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South Africans can benefit from a healthy and well-functioning ocean environment. The overarching objective is to enhance understanding in process studies by assessing the importance, timing and magnitude of mechanisms and processes that influence the Southern Benguela ecosystem structure and functioning, including the climate variability.

(No DOI)
SDS 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 Scientific Data System (SDS) data is from the SANAE oboard the SA Agulhas II voyage 022, between 30 November 2016 and 07 February 2017.

DOI: 10.15493/dea.mims.20210309
Processed CTD continuous observations from the Africana Voyage 011, August 1983

Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Here we present processed downcast CTD continuous data collected between 13 and 24 August 1983, during Voyage 011 on the Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa.

DOI: 10.15493/dea.mims.20210219
Processed CTD discrete observations from the Africana Voyage 014, December 1983

Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Here we present processed CTD discrete data from the upcast collected between 05 and 15 December 1983, during Voyage 014 on the Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa.

DOI: 10.15493/DEA.MIMS.26112022
Processed CTD discrete observations from the West Coast Hake Biomass Survey on the Africana Voyage 015, January 1984

This is processed CTD discrete data from the upcast collected during the West Coast Hake Biomass Survey on the Africana Voyage 015 from 05 - 31 January 1984. The cruise operated in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of South Africa. The purpose of this cruise was to survey by means of trawling the abundance of recruiting and adult hake between the Orange River and longitude 20° E. The objectives also included investigating the diurnal cycle of hake and other demersal species, to compare the trawling results of R.S. Africana with those of M.F.V. Chicha Touza, the Spanish trawler used for similar surveys, to investigate the environment of hake and other demersal species and to carry out acoustic target identification of mesopelagic species using RMT 8 nets.

DOI: 10.15493/dea.mims.26052214
African Coelecanth Ecology Programme (ACEP) Cruise on the Algoa Voyage 130, July 2004

The African Coelecanth Ecology Programme (ACEP) Cruise was on the Algoa Voyage 130, July 2004. The area covered includes the Western Indian Ocean; South African East Coast; Delago Bight - Mozambique; Tanzanian Coast; Comoros.

DOI: 10.15493/DEA.MIMS.58072024
Processed CTD continuous observations from the South Coast Demersal Biomass Survey on the Africana Voyage 102, April 1992

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 31 March and 21 April 1992, during voyage 102 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south 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.57072024
South Coast Demersal Biomass Survey on the Africana Voyage 102, April 1992

The South Coast Demersal Biomass Survey was conducted on the Africana Voyage 102 from 31 March to 21 April 1992. The objectives of the cruise were to conduct a random stratified bottom trawl survey to assess the biomass, abundance, and distribution of hake, sole, horse mackerel, squid and other trawl species; to investigate the hydrology and current profiles of the South Coast and to relate this to the distribution of the major demersal trawl species. This included five transects extending from specified areas on the South Coast and approximately perpendicular to the coastline outwards toward the main stream of the Agulhas Current; to survey acoustically the major squid spawning grounds to determine the extent of aggregation of squid shoals at the time of the year; to do a selected number of mid-water trawls to test for the abundance of kingklip and hake and other demersal species as close as possible to the bottom and in midwater over grounds normally inaccessible to bottom trawl...

DOI: 10.15493/DEA.MIMS.59072024
Processed CTD discrete observations from the South Coast Demersal Biomass Survey on the Africana Voyage 102, April 1992

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected between 31 March and 21 April 1992, during voyage 102 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south 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.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 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...

(No DOI)
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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.

DOI: 10.15493/dea.mims.25010003
South African National Antarctic Expedition (SANAE) on the SA Agulhas II Voyage 029, December 2017

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 57 team to the island and return with the SANAE 56 team. The cruise was undertaken on the SA Agulhas II Voyage 029 between 07 December 2017 and 14 February 2018 with a full scientific complement.

DOI: 10.15493/DEA.MIMS.15082023
Processed CTD continuous observations from the Anchovy and Pilchard Recruitment Survey on the Africana Voyage 121, May 1994

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 03 May and 27 May 1994, during Voyage 121 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) 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.

(No DOI)
Processed CTD continuous observations from the Algoa Voyage 241, July 2017

SeaBird SBE911 plus Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises from 2000. Here we present processed downcast CTD continuous data collected, between 12 July and 14 August 2017, during voyage 241 on the RV Algoa, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of South Africa.

(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 same format and is of the same quality and datasets will be marked as obsoleted once that is done. As such the user assumes the entire risk related to the use of these data in its current state and format. DFFE disclaims all warranties of the data whether expressed or implied, including without limitation, any warranties of merchantability or fitness for a particular purpose. For any concerns regarding the data, the user may decide to liaise with the listed PIs who will share their insight on 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 continue contributing to the establishment of an oceanographic observation and monitoring system directed by South African research institutions in support of South Africa’s needs – and where possible, the global requirements of the Global Oceans Observing System (GOOS), the Southern Ocean Observing System (SOOS), the Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), the Agreement on the Conservation of Albatrosses and Petrels (ACAP), etc. With the declaration in...

DOI: 10.15493/DEA.MIMS.15122023
Processed CTD continuous observations from the South Coast Inshore Demersal Biomass and Horse Mackerel Acoustic Survey on the Africana Voyage 125, September 1994

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 21 September and 18 October 1994, during Voyage 125 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south 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.40042026
Processed CTD discrete observations from the West Coast Demersal Biomass Survey on the Africana Voyage 139, January 1997

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the downcast collected between 9 January and 30 January 1997, during voyage 139 on the Africana, in the Benguela Current Large Marine Ecosystem (BCLME) 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.14552023
Processed Dissolved Inorganic Carbon (DIC) and Total Alkalinity (TA) data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 220, November 2015

This is processed Dissolved Inorganic Carbon (DIC) and Total Alkalinity (TA) data from the Integrated Ecosystem Programme cruise in the Southern Benguela (IEP-SB). The cruise took place from 19 to 23 November 2015 aboard the RV Algoa. A total of 31 stations were occupied along three transect lines on the west coast of South Africa. Ten Conductivity, Temperature, Depth (CTD) stations were occupied along the Kleinsee Monitoring Line (KML) of Kleinsee, nine along the Namaqua Monitoring Line (NML) of Namaqua and twelve stations along the St Helena Bay Monitoring Line (SHBML). Discrete water samples were collected in 500ml Certified Reference Materials (CRM) bottles from Niskin bottles and spiked with 0,02% of Mercuric chloride before being stored in the dark at room temperature for later analysis in the laboratory ashore using a Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity (VINDTA). The purpose of the observations was to characterise...

739 datasets found Page 19 of 30

Geographic extent

Temporal extent