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03 November 2022 | Story Leonie Bolleurs | Photo Supplied
Dr Liezel Rudolph
Dr Liezel Rudolph, a lecturer in the Department of Geography, recently returned from an expedition to Gough Island in the South Atlantic Ocean, where she was involved in research that aims to better understand the landscape evolution of some subantarctic islands and their response to long-term climate change.

A study of subantarctic islands tells us that, in general, the Southern Hemisphere is experiencing a rise in temperature, with an increase in rainfall in some locations, and other areas becoming drier. The annual temperature and rainfall average remain the same in some places, but there is a change in seasonality and synoptic weather events.

This is according to Dr Liezel Rudolph, a lecturer in the Department of Geography at the University of the Free State (UFS). She recently returned from an expedition to Gough Island in the South Atlantic Ocean, supported by the South African National Department of Forestry, Fisheries and the Environment, the National Research Foundation, and the Royal Society for the Protection of Birds.

This teacher of modules on Process Geomorphology and fieldwork techniques at the UFS, says the objective of her work on the island was to do a geomorphological survey of the island and explore the suitability of geochronological dating techniques on the island’s substrate. 

She explains that with geochronological methods one can determine the age of rock material as well as the rate of landscape change on the island. “In other words, dating when the volcano was formed and determining how long it takes for weathering to break down the rock material, and erosional processes to remove soil material.”
 
The research she is involved in, forms part of a SANAP-NRF-funded project, Sub-Antarctic Landscape Climate Interactions, which aims to better understand the landscape evolution of some subantarctic Islands and their response to long-term climate change. 

Studying the past to understand the present

According to her, studying landscape change enables one to better understand climate change over a long period of time. 

She states that the more regions are investigated, the clearer the picture of climate change will become. “The Earth is a large, complex system. By studying climate change in one location, one cannot simply assume that the same type and rate of change is occurring everywhere else. It would be like imaging a 1 000-piece puzzle by building with 10 pieces. The Southern Hemisphere is predominantly ocean, which makes it difficult to pin down land-atmosphere interactions – but the subantarctic islands give us the opportunity to create data points for the Southern Hemisphere, which would otherwise be a very large missing piece of the puzzle,” explains Dr Rudolph.

She says the interaction between ocean, atmosphere, and land remains complex and it is important to study the entire picture in order to fully understand how this is happening. Especially since the climate is changing at a drastic rate.

Dr Rudolph, whose research at the UFS is focused on constraining the last glaciation of subantarctic Marion Island though various proxies and dating techniques, says the subantarctic islands are very sensitive to changes in climate. 

A clearer picture of climate change

She was part of previous expeditions to the island. Although all these expeditions had different goals, according to her, they all aimed to answer the same questions, which are how the island’s landscape has developed throughout history and what the climatic drivers were during its evolution. 

“The landscape responds to changes in temperature and precipitation. Under colder, wetter conditions – when the island’s surface is subject to a freeze-thaw process – a range of peri-glacial landforms will develop. These landforms will still be evident in the landscape years later under a different climate, for example, warmer or drier conditions. We can study these landforms in real-time and establish whether they are actively forming or are relict features that formed under different climatic environments,” remarks Dr Rudolph.

The research, which is taking place in collaboration with the British Antarctic Survey, is co-led by Prof Werner Nel from the University of Fort Hare, and Prof David Hedding from the University of South Africa. 

• Dr Rudolph is grateful to the Government of Tristan da Cunha, which is responsible for managing the conservation of Gough Island, for permitting them to do scientific work on the island. 

News Archive

UFS Faculty of Health Sciences opens student residence in Trompsburg
2017-07-06

Description: Trompsburg read more Tags: Trompsburg read more

Official unveiling of the memorial plaque by
Prof Gert van Zyl, Dean of the Faculty of Health Sciences,
and Prof Francis Petersen, Rector and Vice-Chancellor
of the University of the Free State.
Photo: Charl Devenish

The University of the Free State’s (UFS) Faculty of Health Sciences has, as part of its commitment to student and community development, established a student residence in the town of Trompsburg in the Kopanong Local Municipality. The faculty officially opened the Rural Community Initiative and student residence in June 2017. The newly developed student residence has 10 apartments which could each accommodate six individuals.  A housemaster resides on the premises and acts as manager of the facility.  All areas of the residence are Wi-Fi covered and it has a 24-hour security service.

Importance of the residence
The goal of the Kopanang le fodise – Unite to heal programme is to develop a community-centred collaborative framework for sustainable, holistic healthcare and social development which is incorporated in the curricula of the faculty. During 2016, a total of 324 fourth-year students have each spent at least a week in primary healthcare facilities on a Community Based Education and Inter-Professional Education platform in Trompsburg and Springfontein in the Kopanong Municipality.

“This programme was commissioned to fulfil a specific goal. We are connecting our students with the community. The support of everyone coming together caused this to move from being just a spark, to a blaze. This is all our project,” said Dr René Botha, coordinator for Community-based Education and Rural Health in the faculty.

Community outreach a priority
“This is an innovative project that has been able to bring health and health-related issues to the community. One of the UFS’ three focus areas is community engagement. This project is primarily focused on serving the community, but also on the academic element, which is student development,” said Prof Francis Petersen, Rector and Vice-Chancellor of the UFS.

Prof Petersen commended the project on being the first of its kind in the South African Health Sciences sector. The platform will also be used for research purposes that will enrich the sector. Prof Petersen challenged the Kopanong community to give their input by answering two questions: What is the UFS good at? What is the UFS good for?

Reaching for the stars
“I am a dreamer and I have to reach, and if I reach, I reach for the stars. Today we are very lucky, because we have grabbed that star,” said Prof Gert van Zyl, Dean of the UFS Faculty of Health Sciences.

Prof Van Zyl reminded the audience that they possess the power to change challenges into stars by approaching them with careful thought, planning, and motivation. Prof Van Zyl concluded by stating that the rural community initiative is for the community, and that the faculty is just the facilitators.

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