Please note that this is a staging site.

INDIAN OCEAN (50)

SOUTH ATLANTIC OCEAN (258) ✕

CTD (256)

258 datasets found Page 11 of 11
DOI: 10.15493/DEA.MIMS.25112022
Processed CTD continuous observations from the West Coast Hake Biomass Survey on the Africana Voyage 015, January 1984

This is processed downcast CTD continuous data from 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.25112022
Processed CTD continuous observations from the West Coast Hake Biomass Survey on the Africana Voyage 015, January 1984

This is processed downcast CTD continuous data from 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.

(No DOI)
Processed CTD data from the South Coast Mooring Cruise on the Algoa Voyage 208, July 2014

This is processed Conductivity, Temperature, Depth (CTD) data collected on the South Coast Mooring Cruise on the Algoa Voyage 208, 9 to 24 July 2014. 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. Between 1988 and 2011, environmental and plankton sampling was conducted every summer along the South Coast during the annual pelagic spawner biomass surveys. Data collected during these cruises has provided valuable insight into environmental change in this region. There has been significant decline in copepod biomass on both the western and central Agulhas Bank over the past two decades, as well as a decline in the proportion of the large dominant species Calanus agulhensis, resulting in a shift towards a smaller copepod-dominated community. These changes are thought...

(No DOI)
Processed CTD data from the South Coast Mooring Cruise on the Algoa Voyage 208, July 2014

This is processed Conductivity, Temperature, Depth (CTD) data collected on the South Coast Mooring Cruise on the Algoa Voyage 208, 9 to 24 July 2014. 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. Between 1988 and 2011, environmental and plankton sampling was conducted every summer along the South Coast during the annual pelagic spawner biomass surveys. Data collected during these cruises has provided valuable insight into environmental change in this region. There has been significant decline in copepod biomass on both the western and central Agulhas Bank over the past two decades, as well as a decline in the proportion of the large dominant species Calanus agulhensis, resulting in a shift towards a smaller copepod-dominated community. These changes are thought...

(No DOI)
Raw CTD data from the St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 193, January 2013

This is raw Conductivity, Temperature, Depth (CTD) data from the St Helena Bay Monitoring Line January 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 CTD data from the St Helena Bay Monitoring Line (SHBML) on the Algoa Voyage 193, January 2013

This is raw Conductivity, Temperature, Depth (CTD) data from the St Helena Bay Monitoring Line January 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.

DOI: 10.15493/DEA.MIMS.26052100
Wirewalker wave-powered profilers from three nearshore moorings in St Helena Bay, South Africa, Feb-Apr 2011

Concurrent nearshore measurements of temperature, salinity, and chlorophyll fluorescence 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 Oceanography,101,50–62. doi: 10.1016/j.dsr2.2013.01.016", and were further investigated in "Fearon, G., Herbette, S., Veitch, J., Cambon, G., Lucas, A. J., Lemarié, F., & Vichi, M. (2020). Enhanced vertical mixing in coastal upwelling systems driven by diurnal‐inertial resonance: Numerical experiments. Journal of Geophysical Research: Oceans, 125, e2020JC016208. https://doi.org/10.1029/2020JC016208".

DOI: 10.15493/DEA.MIMS.26052100
Wirewalker wave-powered profilers from three nearshore moorings in St Helena Bay, South Africa, Feb-Apr 2011

Concurrent nearshore measurements of temperature, salinity, and chlorophyll fluorescence 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 Oceanography,101,50–62. doi: 10.1016/j.dsr2.2013.01.016", and were further investigated in "Fearon, G., Herbette, S., Veitch, J., Cambon, G., Lucas, A. J., Lemarié, F., & Vichi, M. (2020). Enhanced vertical mixing in coastal upwelling systems driven by diurnal‐inertial resonance: Numerical experiments. Journal of Geophysical Research: Oceans, 125, e2020JC016208. https://doi.org/10.1029/2020JC016208".

258 datasets found Page 11 of 11

Geographic extent

Temporal extent