739 datasets found Page 17 of 30
(No DOI)
Chl-a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 212, November 2014

First look at Chl-a data from a survey of the West Coast of South Africa as part of the Integrated Ecosystem Programme: Southern Benguela on the Algoa Voyage 212, 12 to 26 November, 2014. The Integrated Ecosystem Programme: Southern Benguela is a 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 indicators, used for ecosystem-based management.

DOI: 10.15493/dea.mims.26052149
Processed Expendable Bathythermograph (XBT) casts collected during the 2013 Marion Relief Voyage on SA Agulhas Voyage 007

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 CTD stations and XBT casts, where the XBT casts are done, at set intervals, between CTD stations to complement the CTD data. Here we present 33 processed XBT casts collected along the Crossroads Transect, between 10 May 2013 and 15 May 2013, during the 2013 Marion Relief Voyage.

(No DOI)
Raw CTD data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 220, November 2015

This is raw Conductivity, Temperature, Depth (CTD) data from the Integrated Ecosystem Programme: Southern Benguela on Algoa Voyage 220, 18 - 25 November 2015. The Integrated Ecosystem Programme: Southern Benguela is a 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 indicators, used for ecosystem-based management.

(No DOI)
Raw SDS data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on Algoa Voyage 220, November 2015

This is Scientific Data System (SDS) data from the Integrated Ecosystem Programme: Southern Benguela on Algoa Voyage 220, 18 - 25 November 2015. The Integrated Ecosystem Programme: Southern Benguela is a 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 indicators, used for ecosystem-based management.

DOI: 10.15493/dea.mims.26500000
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St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 269, January 2011

This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Africana Voyage 269 in January 2011. 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.26052219
Port St Johns Conductivity Temperature Depth (CTD) and Bathymetry Survey on Algoa Voyage 198, May 2013

The Port St Johns Conductivity, Temperature, Depth (CTD) and Bathymetry Survey was conducted on the Algoa Voyage 198, 8 May - 13 May, 2013. This cruise has two scientific objectives: (1) to investigate the dynamics of the Port St. Johns eddy and biological implications and (2) to investigate the existence of mesoscale eddies in the Agulhas Current. In the case of the former, Oceans and Coasts was asked to provide input to the recent spate of shark attacks off Port St. Johns. Very little is known about the oceanography except that Roberts et al (2010) discovered during a cruise a lee-trapped cyclonic eddy off Port St. Johns that caused substantial slope upwelling. The cold upwelled water is nutrient-rich and appears to provide a biological pump to the local ecosystem. This cruise will deploy an ADCP in a depth of approximately 80 m to determine the frequency of appearance of this eddy coupled with Conductivity, Temperature, Depth (CTD) lines to measure the biological implications....

DOI: 10.15493/dea.mims.26000012
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St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 271, February 2011

This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Africana Voyage 271 in February 2011. 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.250121-8
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St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 192, April 2004

This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Africana Voyage 192 in April 2004. 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...

(No DOI)
No Download
SDS data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 219, October 2015

This is Scientific Data System (SDS) data from the West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 219, 28 October to 06 November 2015. The cruise operated on the shelf and slope regions off the west coast of South Africa, between Dassen Island and Groenriviermond.This cruise was undertaken for data collection as part of a collaborative project led by the Department of Environmental Affairs (DEA) in collaboration with the Whale Unit, Mammal Research Institute of the University of Pretoria, Department of Agriculture, Forestry and Fisheries (DAFF), National Oceanic and Atmospheric Administration (USA), Aqualie Institute (Brazil) and Oregon State University (USA). The greater programme is titled "The ecology of Humpback whales Megaptera novaeangliae in South Africa" and has two components, the east coast and west coast components. This cruise focused on the west coast humpback whales.

(No DOI)
Raw SDS data from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 221, November 2015

This is Scientific Data System (SDS) data from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 221, 30 November to 14 December, 2015. SAMBA forms part of the South African component of the International South Atlantic Meridional Overturning Circulation project (SAMOC-SA), which 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.

(No DOI)
Raw South African Weather Service (SAWS) data from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 221, November 2015

This is South African Weather Service (SAWS) data from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean on Algoa Voyage 221, 30 November to 14 December, 2015. SAMBA forms part of the South African component of the International South Atlantic Meridional Overturning Circulation project (SAMOC-SA), which 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.

DOI: 10.15493/DEA.MIMS.55072024
Processed CTD continuous observations from the Pelagic Pre-Recruit Mesopelagic Biomass Survey on the Africana Voyage 101, March 1992

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 11 and 23 March 1992, during voyage 101 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.

(No DOI)
Oxygen calibration data from the Integrated Ecosystem Programme cruise: Southern Benguela (IEP:SB) on the Algoa Voyage 232, November 2016

This is oxygen calibration data from the Integrated Ecosystem Programme (IEP) cruise: Southern Benguela on the Algoa 232, 15 - 26 November, 2016. The Integrated Ecosystem Programme is a 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 indicators, used for ecosystem-based management.

DOI: 10.15493/DEA.MIMS.03122022
Shoal Ecology on the Africana Voyage 018, April 1984

The objectives of this cruise were to obtain a broad picture of pelagic fish shoal distribution in relation to the prevailing mesoscale environmental features; to investigate intensively the diel shoal behaviour pattern of anchovy, pilchard and round herring, with particular reference to their feeding behaviour in relation to food supply. If time permitted the plan was to carry the investigation out in two areas of contrasting environmental features ie St Helena Bay and off Saldanha Bay. Shoals of fish close to strong environmental gradients (in a horizontal plane) will be surveyed to investigate the effect, if any, upon diel behaviour patterns on either side of the gradient. A number of extended lines, traversing the gradient will be steamed with plankton and fish being sampled on an ad hoc basis. It could well be that this investigation would be given a higher priority than the intensive survey off Saldanha.

DOI: 10.15493/DEA.MIMS.01212023
Processed underway Thermosalinograph (TSG) observations from the Benguela Air-Sea CO2 and Heat Flux Experiment on the Algoa Voyage 278, December 2021

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 06 December and 19 December 2021 during the Benguela Air-Sea CO2 and Heat Flux Experiment cruise on the Algoa Voyage 278. 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 cruise operated on the West Coast of South Africa at a fixed location between Station 4 and 5 of the St. Helena Bay monitoring line (SHBML) with the ship's bow into the...

(No DOI)
Raw CTD data from the St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 194, February 2013

This is raw Conductivity, Temperature, Depth (CTD) data from the St Helena Bay Monitoring Line February 2013 cruise (now under the Integrated Ecosystem Programme: Southern Benguela). 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 intrusions of Agulhas Bank water along the west coast will also be collected. A long-term, multi-decadel time-series (from 1951 onward) of information already exists for this important region and has continued in the form of the IEP:SB to detect long-term changes in the hydrology and the plankton, which are important for the detection of regime shifts.

(No DOI)
Raw NDS data from the St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 195, March 2013

This is raw Network Data System (NDS) data from the St Helena Bay Monitoring Line, which now falls under the Integrated Ecosystem Programme: Southern Benguela, on the Algoa Voyage 196, 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 intrusions of Agulhas Bank water along the west coast will also be collected. A long-term, multi-decadel time-series (from 1951 onward) of information already exists for this important region and has continued in the form of the IEP:SB to detect long-term changes in the hydrology and the plankton, which are important for the detection of regime shifts.

(No DOI)
Raw SDS data from Gough Island Relief / Tristan da Cunha on SA Agulhas II Voyage 009, September 2013

This is raw Scientific Data System (SDS) (1 minute) data from the Gough Island Relief / Tristan da Cunha cruise on the SA Agulhas II, Voyage 009 from 5 September to 10 October, 2013.

DOI: 10.15493/DEA.MIMS.48112024
Processed CTD discrete observations from the Current Meter and Sediment Trap Recovery Shelf Chemistry on the Africa Voyage 114, June 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 21 June and 30 June 1993, during voyage 114 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.20210218
Processed CTD continuous 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 downcast CTD continuous data 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

(No DOI)
Raw SDS data from the Moorings and Monitoring Lines Cruise: Cape Point and Port St Johns on the Algoa Voyage 204, November 2013

This is raw Scientific Data System (SDS) data from the Moorings and Monitoring Lines Cruise: Cape Point and Port St Johns on the Algoa Voyage 204, 25 November to 6 December, 2013. The South Coast Mooring Cruise had two scientific objectives: (1) Service, maintain and extend the in situ operational oceanography network currently deployed around South Africa and (2) to investigate the dynamics of the Port St Johns eddy and biological implications.

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.

(No DOI)
Processed XBT data from the Winter Shakedown Cruise on SA Agulhas II Voyage 003, July 2012

This is processed Expendable Bathythermograph (XBT) data from the Winter Shakedown Cruise on SA Agulhas II, Voyage 003, 9 July to 6 August, 2012. The cruise started in Cape Town and went down to the GoodHope Line then up to the Prince Edward Islands, on to Port Elizabeth and then back to Cape Town. After the arrival of SA Agulhas II back to South Africa, an inaugural Southern Ocean cruise was undertaken, which included a multidisciplinary program to measure oceanographic and biological parameters that characterise the state of the Southern Ocean in the region of interest to South Africa, along with the ecosystem properties of the major gyres, frontal systems and shelf and plateau areas. Additionally, land-based research on marine mammals and seabirds was undertaken at South Africa’s Prince Edward Islands (PEIs). The aim of the cruise was to test the research vessels capability and its equipment and to increase our understanding with regard to the influences of oceanographic...

(No DOI)
Pre-processed chlorophyll a data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 209, August 2014

This is pre-processed chlorophyll a data from the Integrated Ecosystem Programme: Southern Benguela on the Algoa Voyage 209, 5 to 15 August, 2014. The Integrated Ecosystem Programme: Southern Benguela (IEP:SB) is a 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 indicators, used for ecosystem-based management. 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 patterms. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and...

(No DOI)
SDS data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 209, August 2014

This is Scientific Data System (SDS) data from the Integrated Ecosystem Programme: Southern Benguela on the Algoa Voyage 209, 5 to 15 August, 2014. The Integrated Ecosystem Programme: Southern Benguela (IEP:SB) is a 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 indicators, used for ecosystem-based management. 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 patterms. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and...

739 datasets found Page 17 of 30

Geographic extent

Temporal extent