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Landscape change studies bring better understanding of climate change

03 November 2022 | Story Leonie Bolleurs | Photo Supplied

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 awards honorary doctorates during its centenary week

2004-10-07

The University of the Free State (UFS) will award 12 honorary doctorates on Thursday 14 October 2004 to a diverse group of outstanding South Africans and international experts.

This will be the last in a group of 18 honorary doctorates that the UFS will be awarding in its centenary year.

The awards comprise of a number of well-known language experts and writers, experts in higher education, first-time awards in community service and development studies, as well as music.

“This reflects quality and also diversity, a spectrum of convictions as well as the recognition of persons who played a major role in changing society in the last couple of decades, “ says Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS.

The awards can be grouped in the following categories:

Language and literature:

Mr Karel Schoeman (D Litt (hc)) – well-known Afrikaans author and former student of the UFS. Some of the awards he has received include the Hertzog prize for prose (1970, 1986 and 1995), the CNA prize (1972 and 1994), the Old Mutual prize (1985 and 1991), the SABC prize for best television drama in 1990, the M Net book prize in 1997 and the State President award (former President Nelson Mandela: Order for Excellent Service – silver) in 1999. It is an honor for the UFS to have this gifted and creative person among its former students. This conferment is a fitting recognition of his status as leading South African writer.

Ms Antjie Krog (D Litt (hc)) – well-known South African poet and former student of the UFS. Her popularity as poet is evident in her piercing honesty and unequalled power of expression. Some of the awards she has received include the Eugéne Marais prize in 1973, the Rapport prize in 1987, the Hertzog prize in 1990 and the RAU prize in 2000. Her writing has been translated into seven languages. She has also received numerous honors for her involvement in and journalistic documentation of the Truth and Reconciliation Commission’s (TRC) proceedings. It is therefore an exceptional privilege for her alma mater to honor her with an honorary doctorate.

Prof Jaap Steyn (D Litt (et phil) (hc)) – recently, Prof Steyn again distinguished himself as biographer whose thorough research is apparent in the published biographies of illustrious writers such as NP van Wyk Louw and MER. The numerous awards, among which the Stals prize from the South African Academy of Science and Art for the Van Wyk publication, are a matter of record. He conducted the research for this great prize-winning work as honorary professor at the UFS.

Prof Jakes Gerwel (D Phil (hc)) – Chancellor of the University of Rhodes and Director of Naspers, Old Mutual, Gold Fields and Brimstone. His doctoral thesis was published in The Netherlands under the title Literatuur en apartheid. Konsepsies van “gekleurdes” in die Afrikaanse roman tot 1948 (1983). He received an honorary doctorate from Clark College ( Atlanta), the City University of New York and Missouri in the USA, the University of the Western Cape, the University of Cape Town, the University of Natal, Rhodes University, the University of Stellenbosch and the University of the Witwatersrand. He is also outstanding professor in the Humanities at the University of the Western Cape, honorary professor in the Humanities at the University of Pretoria, and was the chairman of the Human Sciences Research Council (HSRC).

Development Studies:

Dr Frederick van Zyl Slabbert (D Phil (hc)) – for his academic achievements, his endeavors for bringing about a peaceful transition in South Africa and his demonstration of the social investment role of the corporate sector. Dr Van Zyl Slabbert has received honorary degrees from the University of Natal and the Simon Fraser University in Canada. He has published seven books and various academic articles.

Community Service:

Prof Robert G Bringle (D Phil (hc)) – from the Indiana University-Purdue University Indianapolis (IUPUI) in the USA. He is currently Chancellor’s Professor of Psychology and Philanthropic Studies at the IUPUI and also Director of the IUPUI’s Centre for Service Learning. He is honored for his exceptional contribution to several of the UFS’s community service projects as well as his role in the advancement of a multi- and inter-disciplinary approach to academic development and the integration of service learning within the faculties of the UFS. He has also made a valuable contribution to the conceptual framework of the UFS’s unique community service policy and more recently to the advancement of a research culture regarding community service.

Higher education:

Dr Khotso Mokhele (D Phil (hc)), President of the National Research Foundation (NRF) is honored for his contribution to the South African higher education sector. He has also made a substantial contribution to the development of the research capacity of universities and technikons in South Africa. Dr Mokhele was born in Bloemfontein and matriculated at the Moroka High School in Thaba Nchu.

Prof Saleem Badat (D Phil (hc)), the Chief Executive Officer of the Council on Higher Education (CHE). Prof Badat has devoted himself to transforming and building South African higher education, and has constantly challenged the higher education sector to retain the moral basis of higher education and tackle its challenges with intellectual honesty, ingenuity, creativity and courage. He is honored for his intellectual leadership in the development of a equitable, just and quality higher education system in South Africa.

Law:

Prof HA (Boelie) Wessels (D Legum (hc)) – for his contribution to the fields of Roman Law, Legal History at the UFS. He is currently a part-time lecturer at the UFS’s Faculty of Law.

Medicine:

Prof CJC Nel (D Phil (hc) Posthumous) – for the way in which he strived for the advancement of excellent medical education in the country. Prof Nel also did pioneering work in the field of transformation in higher education. Under his guidance the School of Medicine at the UFS became one of the first medical schools to adopt a parallel-medium system of instruction.

Music:

Prof Leo Quayle (D Mus (hc)) – for the significant contributions he has made to the development of music – not only in Bloemfontein, but also on national level and abroad. His initiative, enthusiasm and dedication contributed to the eventual founding of the Free State Musicon, as well as the first symphony orchestra and the first string quartet in Bloemfontein. Prof Quayle is a former head of the Department of Music at the UFS.

Prof Jack de Wet (D Mus (hc)) – well-known for his exceptional contribution to violin tuition in South Africa. As pedagogue of international stature, he still moulds violinists who compete at national and international level. At an advanced stage of his career, he still actively conveys his knowledge, experience and distinctive insight in his field of speciality to yet another new generation of young violin teachers. Today the symphony orchestras in Bloemfontein and Port Elizabeth also stand on the foundations laid by him.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
7 October 2004

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