by Ria Olivier | Feb 3, 2025 | Announcement, Geomorphology, Important Dates, Research, SANAP, SANAP Student, Science
The International Conference on Geomorphology (ICG) 2025 is set to take place in breathtaking New Zealand, a land renowned for its dynamic landscapes and geological wonders. This global gathering of geomorphologists will provide a platform for cutting-edge discussions on landform processes, climate interactions, and Earth surface dynamics. We invite researchers, early-career scientists, and professionals to contribute to this exciting event by submitting abstracts to the special session:
Geomorphological Insights from the Sub-Antarctic
Description: Sub-Antarctic islands, situated in the remote Southern Ocean, offer a unique geomorphological perspective due to their distinct geographical setting. These cold islands, characterized by both glacial and periglacial processes, provide crucial insights into the historical and ongoing changes in oceanic and atmospheric circulation patterns within the southern hemisphere mid-latitudes. Unlike their northern hemisphere counterparts, these islands experienced a different Last Glacial Maximum (LGM) and complex deglaciation, leading to unique geomorphological features and processes. The landforms of these islands serve as invaluable proxies for understanding landscape responses to climate change. Palaeo-climatic shifts have profoundly influenced geomorphological and cryogenic dynamics, shaping landforms and influencing ecosystem processes. Contemporary climatic changes, such as rising temperatures, moisture fluctuations, and increased frequency of extreme events, pose significant threats to these delicate geomorphological systems. These changes have the potential to push landscape and ecosystem processes beyond their existing environmental thresholds, impacting landforms and biodiversity. This session aims to explore the geomorphological significance of Sub-Antarctic islands and their role as indicators of environmental change. We invite contributions that highlight the geomorphological processes and dynamics that shape the landscape of these Sub- Antarctic Islands. Research focusing on the region’s geomorphological responses to past and present climatic conditions and the possible implications for ecosystem processes are particularly welcome. Emerging researchers are encouraged to submit their work to advance our understanding of these critical sentinel landscapes.
Who Should Submit?
We strongly encourage early-career researchers, postgraduate students, and experienced scientists to contribute their work. This is an excellent opportunity to showcase your research to an international audience, gain valuable feedback, and network with leading experts in the field.
Abstract Submission Deadline: 31 May 2025!!
Don’t miss your chance to be part of ICG 2025 and contribute to this vital discussion on the evolving landscapes of the Sub-Antarctic.
Message from Prof Werner Nel:
“Dear Friends and Colleagues, We are putting a session together for the International Conference on Geomorphology that will be held in Christchurch in February 2026. As you can see the session description is very open, so we can really put a nice diverse session together. We would like to ask you to consider submitting an abstract to the session.
Hope to see you there. All the best.” Werner Nel
by Ria Olivier | Oct 11, 2024 | Announcement, Jobs, Marion Island, News, Overwintering Team, Research, SANAP, Science, Southern Ocean, Stations, sub-Antarctic, Team member
The following positions are available on the sub-Antarctic, Marion Island for the overwintering period (April 2025 to May 2026)
Environmental Officer Assistant Environmental Officer
Communications Engineer Diesel Mechanic Electrical Engineer Medical Orderly
Senior Meteorological Technician Assistant Meteorological Technician
2 X Field Assistants – Sea Birds
Closing Date: 28 OCTOBER
Click here: View all positions
by Ria Olivier | Jul 1, 2024 | Geomorphology, Marion Island, Research, SANAP, Science
Twenty‐thousand‐year gap between deglaciation and peat formation on sub‐Antarctic Marion Island attributed to climate and sea level change
Article published by Werner Nel, Dominic Hodgson, David Hedding, Alex Whittle and Elizabeth Rudolph
Full Article Available Here
Radiocarbon dating of basal peats has been a key factor in determining minimum ages for deglaciation on sub‐Antarctic islands. On Marion Island, peat bogs dominate the landscape below 300m a.s.l., and palynological assessments of peat cores have been used to assess the vegetation history and succession rates as well as the sensitivity of the indigenous flora to climatic change. Initiation of peat on the sub‐Antarctic islands signifies a major landscape change which has previously been linked to the retreat of glaciers. Here we test this hypothesis by comparing previously published and new basal peat ages from Marion Island with cosmogenic isotope dates for deglaciation, and local and regional palaeo‐environmental changes. Results show that, in common with other sub‐Antarctic islands, peat initiation occurred after the Antarctic Cold Reversal (15–13 ka) and through the early Holocene climate optimum. This substantially postdates cosmogenic isotope evidence for deglaciation from the basalts which shows that the areas where the peatlands dominate were ice‐free from the start of Marine Isotope Stage (MIS) 2 (~31 ka). This suggests that environmental conditions controlled peat initiation rather than deglaciation. Regional climatic proxies show that during and after MIS 2, extremely low temperatures, extensive sea ice conditions and depressed sea surface temperatures together with lower sea levels at an island scale could have maintained conditions unfavourable for peat initiation at their current locations. On Marion Island, the significant gap of ~20 000 years between the timing of deglaciation and peat formation indicates that the use of peat basal ages as a proxy for the minimum age of deglaciation in the sub‐Antarctic should be used with extreme caution.
Left( Werner Nel, David Hedding and Elizabeth Rudolph)
© 2024 The Author(s). Journal of Quaternary Science Published by John Wiley & Sons Ltd.
by Ria Olivier | Mar 8, 2024 | Research, SANAP, SANAP Student, Science
During the 6th SANAP symposium, time was allocated for the presentation of governance issues, and this was done on the first day during the opening ceremony. Dr Gilbert Siko , the Director of Marine & Polar Research at the Department of Science and Innovation gave the first presentation. His role within the Research Development and Support Programme it is to promote the development of research, the production of scientific knowledge, and human capital development in science areas in which South Africa enjoys a geographic advantage, that includes Antarctic and marine research. Dr Siko highlighted the strategic importance of the research conducted through the South African National Antarctic Programme.
Dr Siko was followed by Tracy Klarenbeek, Director of Knowledge Advancement and Support of the National Research Foundation (NRF). She highlighted that create innovative funding instruments such as SANAP serve to transform the scientific landscape and inspire a representative research community to aspire to global competitiveness. She shared the outcomes of the 2023 SANAP Call for Proposals for funding cycle 2024 – 2026 with the community. She also mentioned that mentorship initiatives for unsuccessful applicants would be implemented via SAPRI.(right)
Dr Siko was followed by Tracy Klarenbeek, Director of Knowledge Advancement and Support of the National Research Foundation (NRF). She highlighted that create innovative funding instruments such as SANAP serve to transform the scientific landscape and inspire a representative research community to aspire to global competitiveness. She shared the outcomes of the 2023 SANAP Call for Proposals for funding cycle 2024 – 2026 with the community. She also mentioned that mentorship initiatives for unsuccessful applicants would be implemented via SAPRI.
Prof Bettine van Vuuren (right), Chair of the South African National Committee for SCAR gave feedback on the committee meeting. She also highlighted the function and activities of SCAR and the importance to be informed of these activities, and to be aware of scholarship opportunities. She encouraged early career researchers to become involved in SCAR committees and action scholarships.
The highlight of the Symposium was the international Antarctic day celebrations where Tracy Klarenbeek (left)addressed all attendees during the closing ceremony with a heartfelt talk. All participants, old and new, were thanked for their participation in the Symposium and their dedication to the SANAP programme. Tracy Klarenbeek talk gave a personal perspective of administering the SANAP programme:
“by facilitating Antarctic and Southern Ocean research, and awarding student bursaries, it is evident that the work I do changes lives”.
The opportunity to access the Southern Ocean, Antarctica and the sub-Antarctic islands (Gough and the Prince Edward Islands) is limited to the lucky few, and the work of the National Research Foundation makes this a reality for researchers and students alike.
A printed Map of Antarctica was signed by everyone on International Antarctica Day 1st December 2023 at Houw Hoek Hotel!
Speakers photos: credit Anche Louw – SA Polar Research Infrastructure/Antarctic Legacy of SA
by Ria Olivier | Feb 19, 2024 | Oceanography, Research, SANAP, SANAP Student, Science, Southern Ocean, Uncategorised
MARIS started the first session on Southern Ocean research within SANAP with focus on SEA ICE. Above: Rutger Marquart, Magata Mangatane, Dylan White, Anand Nair, Wayne de Jager, Leila Nefdt, Safiyyah Moos, Tokoloho Rampai, Marcello Vichi, Robyn Verrinder, Hayley Swait, Riesna Audh, James van Niekerk. (Photo Credit: MARIS)
The first ocean session covered the Antarctic sea ice research field led by the Sea Ice Team from the Marine and Antarctic Research for Innovation and Sustainability (MARiS). The research themes covered in this session were innovation and development, oceans and marine eco-systems under global change and earth systems observations. The presentations and posters under these research theme covered a diverse range of projects from large-scale sea ice observations, tracking and measurements to the small-scale sea ice dynamics, properties and biogeochemistry. Antarctic sea ice research has received a comparatively limited focus compared to its Arctic counterpart. The MARiS sea ice team is constituted of the departments of Oceanography, Electrical and Chemical Engineering at the University of Cape Town, with projects aimed to contribute new insights and push the boundaries within this research domain. The presentation within this session were on a variety of earth system observations models, simulations of sea ice wave interactions, innovative tool development for lab-based experiments and field-based work investigating sea ice dynamics and properties and the ecological impacts of algae and their biogeochemical significance. The session under the MARS theme; Oceans and marine ecosystems under global change was chaired by Principal investigator Tokoloho Rampai and it included an overview of Maris by Robyn Verrinder. The session was done in round table fashion and included posters and oral presentations. Tokoloho concluded the session with a closing statement
Oral presentations:
- Robyn Verrinder – Overview of MARIS.
- Rutger Marquart – Numerical modelling of sea ice dynamics and thermodynamics in the Antarctic marginal ice zone. (abstract)
- Anand Nair – Three-Dimensional Computational Fluid Dynamics Modelling of Pancake Ice on Waves. (abstract)
- Safiyyah Moos – Investigating the dynamics and exchanges across the ice-ocean interface in artificial sea ice. (abstract)
- Hayley Swait – Investigating Brine and Air Porosity in Sea Ice from the Eastern Antarctic Marginal Ice Zone. (abstract)
Poster Presentations were displayed in the venue during the symposium and presenters gave a quick introduction to their posters during the round-table session.
- Wayne De Jager – Sub-daily Antarctic sea-ice variability estimates using swath-based retrieval methods. (abstract)
- Dylan White – Discussion on the Premise of, and Challenges in, the Development of a Ship-Based Radar System for the in-situ Measurement of Sea Ice Thickness. (abstract)
- Magata Mangatane – Antarctic sea-ice thickness reconstruction. (abstract)
- Marcello Vichi – Wind- and wave-driven free-drift dynamics in Antarctic Sea ice.(abstract)
- Tokoloho Rampai – Sea ice growth dynamics and their influence on the physical, structural and mechanical properties-A discussion on innovation in in situ testing. (abstract)
- James van Niekerk – Investigation of the Interactions Between Sea Ice Algae from the Marginal Ice Zone of Antarctica and Artificial Sea Ice. (abstract)
- Riesna Audh – Winter biogeochemical activity is enhanced by rafting in growing Antarctic Sea ice. (abstract)
After the session the group took pictures (Credit: Leila Nefdt)
by Ria Olivier | Feb 16, 2024 | Data Management, Marion Island, Prince Edward Island, Research, SA Agulhas II, Science, Uncategorised
During the 6th Symposium sessions were allocated to cross cutting disciplines and it led to great presentations and discussions. 12- 16 February is International Love Data Week with the theme “My Kind of Data” and this is about the data presentations at the SANAP Symposium “the SANAP community kind of data.”
Data Management
Anne Treasure(right) South Africa’s representative at Standing Committee on Data Management(SCADM) at SCAR and Data Products and Society Manager of the South African Polar Institute(SAPRI) chaired the main session on data management. This session included very interesting presentations from various science disciplines.
Above(l-r): Leigh McGaughey, JP Barnard, Bjorn Boyes
- First Presentation was by Leigh McGaughey on “Ecosystem modelling to explore ecosystem dynamics at the Prince Edward Islands.” (abstract)
- Data management with JP Barnard delivering a presentation on “Management of Recorded Voyage Data for the SA Agulhas II.” and discuss intricate models to ensure vessel data is manage correctly. (Abstract)
- Bjorn Boyes had everyone listening to his talk ” on how to digitally construct sub-Antarctic Marion Island. (Abstract)
On the 30th November more data presentations was given in an ad hoc session chaired by Christel Hansen. Above(l-r): David Hedding, Christel Hansen, Pierre Cilliers
- David Hedding: A geospatial database for the sub-Antarctic Prince Edward Islands (Abstract) Read more here and see the dataset
Christel Hansen delivered a presentation on “Consistent mapping and geospatial information representation in the Antarctic and sub-Antarctic: why South Africans should care.” (Abstract)- During the last research theme session chaired by Stefan Lotz of SANSA, Pierre Cilliers delivered a presentation on ” The long-term variation of the geomagnetic field in Antarctica as measured in Hermanus, Maitri and at SANAE-IV since 2007.” (Abstract)
