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14 December 2020
Prof Abdon Atangana
Prof Abdon Atangana is known for his work in developing a new fractional operator used to model real-world problems arising in the fields of science, technology, and engineering. He was recently awarded the TWAS Mohammad A. Hamdan Award by The World Academy of Sciences.

Prof Abdon Atangana, Professor of Applied Mathematics in the Institute for Groundwater Studies at the University of the Free State (UFS), was awarded the TWAS Mohammad A. Hamdan Award by The World Academy of Sciences for the advancement of science in developing countries.

It is the first time that the TWAS Mohammad A. Hamdan Award was bestowed. According to a statement issued by TWAS, this award is given for outstanding mathematical work carried out by a scientist working and living in Africa or the Arab region. It states that the award can be given for work in pure mathematics, applied mathematics, probability, or statistics. Prof Atangana received the award for his contribution to fractal mathematics and partial differential equations.

Making a difference in society

He is known for his research in developing a new fractional operator, the Atangana-Baleanu operator, which is used to model real-world problems. With this operator, he not only describes the rate at which something will change, but also account for disrupting factors that will help to produce better projections.

His work can be applied to make complicated predictions in the fields of science, technology, and engineering. His models can, for instance, help to predict the spread of infectious diseases among people in a settlement, forecasting the number of people who will be infected each day, the number of people who will recover, and the number of people who will die.

Prof Atangana’s models can also help to advise people drilling for water by predicting how groundwater is flowing in a complex geological formation. These are only two examples of how his work can be applied to make a difference in society.

The award from TWAS is the third prestigious commendation he has received in the past month. He was recently named as one of the top 1% scientists on the global Clarivate Web of Science list. His name also appeared on a global list of leading scientists published by Stanford University in the United States. The list is the result of a study published in PLOS Biology, a peer-reviewed open-access journal.

World’s most accomplished scientists

Honours awarded by TWAS and its partners are among the most prestigious for research in the developing world. They recognise outstanding achievements and contributions to science and acknowledge the best work by scientists from the global South.

TWAS, founded in 1983 by a group of scientists under the leadership of Pakistani physicist and Nobel laureate, Abdus Salam, believes that developing nations – by growing strength in science and engineering – will be able to address challenges such as hunger, disease, and poverty, through their knowledge and skills.

TWAS is represented in 100 countries, and of the more than a thousand elected fellows, 14 are Nobel laureates. Eighty-four percent of these fellows are from developing nations. TWAS fellows are also some of the world’s most accomplished scientists.

News Archive

Fracking in the Karoo has advantages and disadvantages
2012-05-25

 

Dr Danie Vermeulen
Photo: Leatitia Pienaar
25 May 2012

Fracking for shale gas in the Karoo was laid bare during a public lecture by Dr Danie Vermeulen, Director of the Institute for Groundwater Studies (IGS). He shared facts, figures and research with his audience. No “yes” or “no” vote was cast. The audience was left to decide for itself.

The exploitation of shale gas in the pristine Karoo has probably been one of the most debated issues in South Africa since 2011.
 
Dr Vermeulen’s lecture, “The shale gas story in the Karoo: both sides of the coin”, was the first in a series presented by the Faculty of Natural and Agricultural Science under the theme “Sustainability”. Dr Vermeulen is a trained geo-hydrologist and geologist. He has been involved in fracking in South Africa since the debate started. He went on a study tour to the USA in 2011 to learn more about fracking and he visited the USA to further his investigation in May 2012.
 
Some of the information he shared, includes:

- It is estimated that South Africa has the fifth-largest shale-gas reserves in the world, following on China, the USA, Argentina and Mexico.
- Flow-back water is stored in sealed tanks and not in flow-back dams.
- Fracturing will not contaminate the water in an area, as the drilling of the wells will go far deeper than the groundwater aquifers. Every well has four steel casings – one within the other – with the gaps between them sealed with cement.
- More than a million hydraulic fracturing simulations took place in the USA without compromising fresh groundwater. The surface activities can cause problems because that is where man-made and managerial operations could cause pollution.
- Water use for shale-gas exploration is lower than for other kinds of energy, but the fact that the Karoo is an arid region makes the use of groundwater a sensitive issue. Dr Vermeulen highlighted this aspect as his major concern regarding shale-gas exploration.
- The cost to develop is a quarter of the cost for an oil well in the Gulf of Mexico.
- Dolerite intrusions in the Karoo are an unresearched concern. Dolerite is unique to the South African situation. Dolerite intrusion temperatures exceed 900 °C.

He also addressed the shale-gas footprint, well decommissioning and site reclamation, radio activity in the shale and the low possibility of seismic events.
 
Dr Vermeulen said South Africa is a net importer of energy. About 90% of its power supply is coal-based. For continued economic growth, South Africa needs a stable energy supply. It is also forecast that energy demand in South Africa is growing faster than the average global demand.
 
Unknowns to be addressed in research and exploration are the gas reserves and gas needs of South Africa. Do we have enough water? What will be the visual and social impact? Who must do the exploration?
 
“Only exploration will give us these answers,” Dr Vermeulen said.

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