Please note that this is a staging site.
887 datasets found Page 20 of 36
DOI: 10.15493/DEA.MIMS.01142023
Benguela Air-Sea CO2 and Heat Flux Experiment on the Algoa Voyage 278, December 2021

The Benguela Air-Sea CO2 and Heat Flux Experiment was conducted on the Algoa Voyage 278 from 6 to 19 December 2021. 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 wind. The objectives of the cruise were to examine, using high-resolution Eddy Co-Variance (EcV) and in situ observations, the role of the ocean “cool skin” on the air-sea flux of CO2 and heat; to examine, through high-resolution observations, the impact of the vertical temperature gradient in the upper 10m of the water column on the estimation of the air-sea flux; to examine the sensitivity of 1 and 2 under a wide range of diurnal and synoptic wind stress and surface layer mixing conditions; to link the variability in the temperature gradients and pCO2 to mixed layer dynamics in response to the interaction of wind-linked mixing and heat-linked stratification; to understand the synoptic scale...

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...

DOI: 10.15493/DEA.MIMS.10562023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP: SB) on the Algoa Voyage 277, November 2021

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 15 November and 23 November 2021 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 277. 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 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...

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 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 Benguela. These include physical, chemical, planktonic, microbial, seabird, marine mammal, benthic and pollution (plastic) ecosystem indicators as required by ecosystem-based management regarding the following priorities: ocean warming, ocean acidification, trophic...

DOI: 10.15493/DEA.MIMS.01112023
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line cruise on the Algoa Voyage 275, September 2021

The South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean was conducted on the Algoa Voyage 275 from 13 September to 7 October 2021. The cruise operated from Cape Town towards Slangkop and westwards to 0° E, in an easterly direction in the South Atlantic Ocean along the SAMBA Monitoring Line (34.5°S). The objectives of the cruise were to recover, service and deploy 10 CPIES/PIES on the SAMBA transect; attempt to locate and recover DFFE current meter mooring (M7), that could not be recovered during 2020 cruise; undertake full depth Conductivity, Temperature, Depth (CTD) casts along the SAMBA transect (37 stations) using containerised winch system; undertake chlorophyll, oxygen, nutrient and Dissolved Inorganic Carbon (DIC) sampling at CTD stations and underway along SAMBA transect; collect under-way Thermosalinograph (TSG); Surface Photosynthetically Active Radiation (SPAR) and Ship-mounted Acoustic Doppler...

DOI: 10.15493/DEA.MIMS.01192023
Processed underway Thermosalinograph (TSG) observations from the SAMBA Monitoring Line cruise on the Algoa Voyage 275, September 2021

Here we present the 6-second resolution processed 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 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 from Cape Town towards Slangkop and westwards to 0° E, in an easterly direction in the...

DOI: 10.15493/DEA.MIMS.19112022
Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 274, August 2021

This Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise was conducted on the Algoa Voyage 274 in August 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 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 Benguela. These include physical, chemical, planktonic, microbial, seabird, marine mammal, benthic and pollution (plastic) ecosystem indicators as required by ecosystem-based management regarding the following priorities: ocean warming, ocean acidification, trophic...

DOI: 10.15493/DEA.MIMS.24112022
West Coast Hake Biomass on the Africana Voyage 015, January 1984

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.09962023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 274, August 2021

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 22 August and 30 August 2021 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 274. 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 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...

DOI: 10.15493/DEA.MIMS.01172023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 272, May 2021

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 14 May and 21 May 2021 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 272. 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 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...

DOI: 10.15493/DEA.MIMS.07532023
Processed underway Thermosalinograph (TSG) observations from the Algoa Voyage 271, March 2021

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 08 March and 15 March 2021, during Voyage 271 on the RS Algoa. 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).

DOI: 10.15493/dea.mims.20210409
Processed underway Thermosalinograph (TSG) observations from the Algoa Voyage 269, October 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 conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C). Here we present the 6-second resolution processed TSG data collected between 03 October 2020 and 16 October 2020, during Voyage 269 on the Algoa.

DOI: 10.15493/dea.mims.20210408
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) cruise on the Algoa Voyage 269, September - October 2020

Servicing and re-deployment of scientific equipment along the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean. Algoa Voyage 269 operated from Slangkop, off Cape Town, westwards to 11° E, in the South Atlantic Ocean along the SAMBA transect and south of Hondeklipbaai on the West coast, between 21 September 2020 and 16 October 2020.

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 indicators, used for ecosystem-based management.

DOI: 10.15493/dea.mims.25010001
Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 268, February 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 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 25 February 2020 and 04 March 2020, during Voyage 268 on the Algoa.

DOI: 10.15493/DEA.MIMS.14842023
West Coast Cetacean Distribution and Abundance Survey on the Algoa Voyage 266, November 2019

The West Coast Cetacean Distribution and Abundance Survey was conducted on Algoa Voyage 266, from 04 November to 15 November 2019. The cruise operated along the shelf and slope regions of the West Coast of South Africa, spanning from Dassen Island to Groenriviermond. The primary objective was to assess the distribution and abundance of cetaceans, particularly humpback whales, in the study area. This work adhered to internationally accepted protocols and provided practical experience in addressing logistical and technical challenges associated with dedicated cetacean research cruises.

DOI: 10.15493/DEA.MIMS.09042025
Processed underway Thermosalinograph (TSG) observations from RS Algoa Voyage 266, November 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 04 November and 14 November 2019, during voyage 266 on the RS 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.16042024
South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line cruise on the Algoa Voyage 265, September 2019

The South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) Monitoring Line in the South-East Atlantic Ocean was conducted on the Algoa Voyage 265 from 30 September 2019 to 16 October 2019. The cruise operated from Slangkop, off Cape Town, westwards to 0° E, in the South Atlantic Ocean along the SAMBA transect. The objectives of the cruise were to recover, service and re-deploy six (6) Pressure Inverted Echosounders (PIES); complete 37 Conductivity, Temperature, Depth (CTD) full depth casts (using the containerised winch) along the SAMBA transect; undertake Chlorophyll and Oxygen sampling at CTD stations and underway along SAMBA transect; collect underway Thermosalinograph (TSG); Surface Photosynthetically Active Radiation (SPAR) and Ship-mounted Acoustic Doppler Current Profilers (S-ADCP) data and provide training to newly employed Department of Forestry, Fisheries and the Environment (DFFE) personnel and interns.

DOI: 10.15493/DEA.MIMS.13482023
Processed underway Thermosalinograph (TSG) observations from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) on Algoa Voyage 265, September 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 30 September 2019 and 16 October 2019 during the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) cruise on the RS Algoa Voyage 265. 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).

DOI: 10.15493/DEA.MIMS.09942023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 262, August 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data between 13 August 2019 and 19 August 2019 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 262. 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). The programme is a multi-disciplinary, multi-institutional platform undertaking relevant science in the Southern Benguela; it also functions as a platform for collaboration and learning. All...

DOI: 10.15493/DEA.MIMS.09922023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 259, May 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 20 May 2019 and 27 May 2019 collected during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 259. 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). The programme is a multi-disciplinary, multi-institutional platform undertaking relevant science in the Southern Benguela; it also functions as a platform for collaboration and...

DOI: 10.15493/DEA.MIMS.09902023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the Algoa Voyage 258, February 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 28 February 2019 and 07 March 2019 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 258. 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 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...

DOI: 10.15493/DEA.MIMS.09882023
Processed underway Thermosalinograph (TSG) observations from the Algoa Voyage 257, January 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 08 January 2019 and 25 January 2019 on the RS Algoa Voyage 257. 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).

DOI: 10.15493/DEA.MIMS.10542023
Processed underway Thermosalinograph (TSG) observations from the Integrated Ecosystem Programme: Southern Benguela (IEP: SB) on the Algoa Voyage 255, November 2018

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected between 20 November and 28 November 2018 during the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) on the RS Algoa Voyage 255. 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 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...

DOI: 10.15493/DEA.MIMS.07502023
West Coast Whale Cruise - In-depth sampling of humpback whale feeding super-groups on the Algoa Voyage 254, November 2018

The West Coast Whale Cruise was conducted on the Algoa Voyage 254 between 1 and 14 November 2018. The cruise operated between the shelf, slope and offshore regions (<2000m depth) off the west coast of South Africa, between Cape Point (-34.36.111, 18.38064) and Groenriviermond (-30.8277, 17.52061). 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 'Large whale research - genetic relatedness, stock identification, abundance, feeding and migratory behaviours' and has two components, the east coast and west coast components. This cruise focused on the west coast humpback whales.

887 datasets found Page 20 of 36

Geographic extent

Temporal extent