Please note that this is a staging site.

Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) (822) ✕

822 datasets found Page 33 of 33
DOI: 10.15493/dea.mims.26500012
Compilation of validated and processed data (deck, flow and count) from the St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 181, August 2003

Compilation of processed and validated data of mesozooplankton along the St Helena Bay Monitoring Line (SHBML) (now under the Integrated Ecosystem Programme: Southern Benguela (IEP:SB)) on the Africana, Voyage 181, from 12 to 13 August 2003. This includes the validated flow, processed counts and validated ship`s information. This is ready for analysis by a user. 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 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...

DOI: 10.15493/dea.mims.26500003
Compilation of validated and processed data (deck, flow and count) from the St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 269, January 2011

Compilation of processed and validated data of mesozooplankton along the St Helena Bay Monitoring Line (SHBML) (now under the Integrated Ecosystem Programme: Southern Benguela) on the Africana, Voyage 269, from 11 to 13 January 2011. This includes the validated flow, processed counts and validated ship`s information. This is ready for analysis by a user. 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 are also 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...

DOI: 10.15493/dea.mims.26052310
Port Nolloth weather station data

Weather station data from Port Nolloth measuring the rainfall, temperature, humidity, and wind speed. Coastal, land based automatic weather stations situated in the West Coast of South Africa (Cape Columbine, Elands Bay and Port Nolloth have been actively collecting data for various project since 1982 until today at different locations. These instruments provide useful meteorological information for understanding coastal dynamics such as upwelling, ocean current movements and air sea exchange.

DOI: 10.15493/dea.mims.26052307
Elands Bay weather station data

Weather station data from Elands bay measuring the rainfall, temperature, humidity, and wind speed. Coastal, land based automatic weather stations situated in the West Coast of South Africa (Cape Columbine, Elands Bay and Port Nolloth have been actively collecting data for various project since 1982 until today at different locations. These instruments provide useful meteorological information for understanding coastal dynamics such as upwelling, ocean current movements and air sea exchange.

DOI: 10.15493/dea.mims.26052304
Columbine weather station data

Weather station data from Columbine measuring the rainfall, temperature, humidity, and wind speed. Coastal, land based automatic weather stations situated in the West Coast of South Africa (Cape Columbine, Elands Bay and Port Nolloth have been actively collecting data for various project since 1982 until today at different locations. These instruments provide useful meteorological information for understanding coastal dynamics such as upwelling, ocean current movements and air sea exchange.

DOI: 10.15493/DEA.MIMS.15712023
Simulated advection patterns of Engraulis encrasicolus and Sardinops sagax larvae across South Africa's inshore Marine Protected Areas

Larval anchovy and sardine dispersal patterns in South Africa's exclusive economic zone (2010 - 2014) by Rasehlomi et al. (2025), published in Frontiers in Marine Science, investigates the dispersal of larval anchovy and sardine (https://doi.org/10.3389/fmars.2024.1508479). We simulated larval dispersal patterns using a simplified model within the Java-based ICHTHYOP particle tracking tool. This model compared outputs from the 3km grid resolution CROCO model and the 8km-resolution Global Ocean Reanalyses (GLORYS). Virtual particles were released from the surface of 14 inshore Marine Protected Areas (MPAs), from iSimangaliso MPA (on the east coast) including the Agulhas Bank (on the south) to Childs Bank MPA (on the west coast). Releases occurred on October 1st for five consecutive years, starting in 2010. These particles drifted for 30 days, with their positions recorded every 30 minutes. Particles that exited the model's boundaries or became stranded on beaches were excluded from...

DOI: 10.15493/DEA.MIMS.12652023
Cape Canyon Suspended Particulate Matter CTD water sample

The Cape Canyon, situated on the western continental shelf of South Africa, stands as the country's largest bathymetric feature. Despite its prominence, understanding of the food web dynamics within the system and the significance of the benthic community for higher trophic levels remains incomplete. In response to this knowledge gap, the DFFE: Oceans and Coasts launched a multidisciplinary expedition aboard the RV Algoa. The expedition aimed to characterise the physical environment and investigate food web connections in the vicinity of the Cape Canyon by analysing isotopic signatures in suspended particulate matter (SPM) relative to those found in benthic tissue samples. Prior to dredge operations, conductivity, temperature, and depth (CTD) water samples were collected at each dredge station. However, due to the inherent challenges associated with sampling in canyon systems, not all dredge operations were successful in obtaining samples, resulting in an unbalanced design where...

DOI: 10.15493/DEA.MIMS.05322023
Benthic invertebrate presence data, in and around the Cape Canyon (Southern Benguela Upwelling region)

Canyon research is still an emergent field in South Africa and the true potential of canyons as biodiversity hotspots has seldom been studied in an integrated context. In response to this, the Department of Forestry, Fisheries and the Environment: Oceans and Coasts collected benthic data to better understand benthic species profiles within and around the Cape Canyon. This equated to 39 stations (whereby 13 were canyon and 26 non-canyon) and yielded 180 species.

(No DOI)
Hybrid Coordinate Ocean Model (HYCOM) EnOI Version 1.1 Raw (L3R) Regional Agulhas 10km Ocean State Estimate 2009

The greater Agulhas Current is one of the most energetic current systems in the global ocean. It plays a fundamental role in determining the mean state and variability of the regional marine environment, affecting its resources and ecosystem, the regional weather and the global climate on a broad range of temporal and spatial scales. In the absence of a coherent in-situ and satellite-based observing system in region, modelling and data assimilation techniques play a crucial role in both furthering and quantitative understanding and proving better forecasts of this complicated western boundary current system.

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.26052101
Bottom-mounted Acoustic Doppler Current Profilers (ADCP) from three nearshore moorings in St Helena Bay, South Africa, Feb-Apr 2011

Concurrent nearshore measurements of current velocity 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.26052102
A stand alone 1D-vertical version of the Coastal and Regional Ocean COmmunity model (CROCO)

A 1D-vertical model originally developed by Florian Lemarie to test different vertical mixing parameterisations implemented in the full version of the CROCO source code. The model is run as a python script, simplifying the setup and testing of different 1D model configurations. The python script loops through time and calls a 1D version of the CROCO Fortran code at each time-step. A description of the input variables and how to implement the code is provided in scm_oce.pdf. Some examples of how the model has been used to benchmark oceanic vertical mixing parameterization against standard test cases is provided in comodo_params.pdf. The provided example configuration is described 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".

(No DOI)
Raw SPAR data from the Transkei Shelf Oceanography Cruise on the Algoa 241, July 2017

This is raw Surface Photosynthetically Active Radiation (SPAR) data from the Transkei Shelf Oceanography Cruise on the Algoa 241, 12 July to 11 August, 2017. The area covered includes the Transkei shelf and continental slope (20m to 1000m), of the Eastern Cape, between Cape St Francis and Port Shepstone in the South-West Indian Ocean.Our knowledge of the distribution of offshore benthic biodiversity on the Transkei shelf is very limited. The region between Algoa Bay and Port Edward is not only important for understanding the functioning of existing Marine Protected Areas (MPAs) such as Pondoland, Dwesa-Cwebe, and the Amathole, but is of particular relevance to the new Operation Phakisa proposed MPA network that will potentially include additional MPAs such as the Protea Banks, Amathole Expansion, and the proposed Addo MPA. In addition, further knowledge is needed to support decision-making about the offshore extent of the Dwesa-Cwebe MPA. The oceanography in the form of water...

DOI: 10.15493/SAEON.EGAGASINI.10000003
No Download
Shelf Agulhas Glider Experiment data

In this proposed pilot project, interactions between the Agulhas Current and coastal and shelf regions are investigated using data collected from two autonomous Seagliders (autonomous robotic platfoms). The Seagliders are set to profile the water column within the 100m and 1000m depths contours, in the oceanic shelf regions of Algoa Bay and St Francis Bay. The Seagliders measure a wide range of seawater variables (temperature, salinity, pressure, dissolved oxygen, light, bio-optics) that are then communicated back via satellite in real-time to land or ship-based users for analysis. The two Seagliders were deployed between the 16th and 24th of April 2015 from the M.V. Algoa as part of the one of the activity of the ASCA deployment cruise.

(No DOI)
Processed SADCP data from 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. 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...

(No DOI)
Processed CTD data from African Coelacanth Ecosystem Programme (ACEP) from Algoa Voyage 176, January 2010

The Algoa sailed from Durban on 22 January 2010 to conduct a hydrographic survey of the Natal Bight as part of the African Coelacanth Ecosystem Programme (ACEP) II. A total of 16 shore-normal transects were occupied between Scottburgh and St. Lucia.The sampling locations are indicated in Figure 1 of the Cruise Report. 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. Unfortunately, due to instrument failure, a planned ADCP transect between St. Lucia and Durban could not be completed. 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...

(No DOI)
Processed CTD data from 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. 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...

(No DOI)
Raw Conductivity Temperature Depth (CTD) data from the African Coelecanth Ecology Programme (ACEP) Cruise on the Algoa Voyage 130, July 2004

This is raw Conductivity, Temperature, Depth (CTD) data from the African Coelecanth Ecology Programme (ACEP) Cruise 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.10000015
Agulhas Bank shelf total cumulative upwelling index, 1997 to 2018

Seasonal mean total cumulative upwelling in the Agulhas Bank (33.3-37.5°S;18.5-27°E) shelf region during austral summer, autumn, winter, and spring.

DOI: 10.15493/DEA.MIMS.10000014
Southern Benguela shelf total cumulative upwelling index, 1997 to 2018

Seasonal mean total cumulative upwelling in the Southern Benguela (29-34.3°S;12-18.5°E) shelf region during austral summer, autumn, winter, and spring.

DOI: 10.15493/DEA.MIMS.10000013
Northern Benguela shelf total cumulative upwelling index, 1997 to 2018

Seasonal mean total cumulative upwelling in the Northern Benguela (15-29°S;8-16.8°E) shelf region during austral summer, autumn, winter, and spring.

(No DOI)
Data from the pre-operational pilot phase of the Elands Bay data buoy deployment

Hourly weather station data from the pre-operational pilot phase of the Elands Bay data buoy deployment measuring the rainfall, temperature, humidity, and wind speed.

822 datasets found Page 33 of 33

Geographic extent

Temporal extent