Dr Abraham Steyn
Position
Lecturer
Department
Soil Crop and Climate Sciences
Telephone
0514019249
Office
AGRICULTURE BUILDING: BLOCK 1 1.228
Short CV

Qualifications:

PhD (Agrometeorology) from UFS; MSc (Agrometeorology) from UFS; BSc Hons. (Applied Sciences: Meteorology) from UP; BSc (Atmospheric Sciences: Meteorology) from UP

 

Career:

• Since 2003 – Lecturer in Agrometeorology (University of the Free State)

• 1998 – 2003 Weather Forecaster (South African Weather Service)

 

Current Projects:

• Climate change and variability related impacts in agriculture

Publications

PEER REVIEWED JOURNAL ARTICLES

Mengistu, A.G., Tesfuhuney, W.A., Woyessa, Y.E. and Steyn, A.S., 2023. Potential distribution of selected invasive alien plants under current and future climate change scenarios in South Africa. Heliyon 9, e19867. doi:10.1016/j.heliyon.2023.e19867.

Tharaga, P.C., Steyn, A.S., Coetzer, G.M., 2021. Climate change impacts on temperature and chill unit trends for apple (Malus domestica) production in Ceres, South Africa. Atmosphere 12, 740. doi:10.3390/atmos12060740.

Tesfuhuney, W.A., Walker, S., Van Rensburg, L.D. and Steyn, A.S., 2016. Micrometeorological measurements and vapour pressure deficit relations under in-field rainwater harvesting. Physics and Chemistry of the Earth 94, 196-206. doi:10.1016/j.pce.2016.03.001.

Tharaga, P.C., Steyn, A.S. and Coetzer, G.M., 2016. Impacts of climate change on accumulated chill units at selected fruit production sites in South Africa. Acta Horticulturae 1130, 63-70. doi:10.17660/ActaHortic.2016.1130.9.

Steyn, A.S. and Walker, S., 2010. Die afskaling van globale sirkulasiemodelvoorspellings na daaglikse reënval oor die Bo-Olifantsrivieropvanggebied. South African Journal of Science and Technology 29(3): 163-164.

 

PEER REVIEWED CONFERENCE PAPERS:

Steyn, A.S., Engelbrecht, C.J. and Franke, A.C., 2023. Synoptic weather patterns related to increased fire danger over the central grassland biome of South Africa. Proceedings of the annual combined conference of the Soil Science Society of South Africa, South African Society of Crop Production, Southern African Weed Science Society and Southern African Society for Horticultural Sciences, 21 - 24 January 2023, Pretoria, South Africa.

De Wet, L. and Steyn, A.S., 2014. Frost trends on a citrus farm in Limpopo, South Africa. Proceedings of the 30th annual conference of the South African Society for Atmospheric Sciences, 1 - 2 October, Potchefstroom, South Africa.

Tharaga, P.C., Steyn, A.S. and Coetzer, G.M., 2014. Impacts of climate change on accumulated chill units at selected fruit production sites in South Africa. Proceedings of the 29th International Horticultural Congress, 17 - 22 August 2014, Brisbane, Australia. p 1612.

Masupha, E.T. and Steyn, A.S., 2013. Assessment of chill accumulation for sweet cherries at the main production sites in South Africa. Proceedings of the 29th annual conference of the South African Society for Atmospheric Sciences, 26 - 27 September, Durban, South Africa.

Odendaal, C. and Steyn, A.S., 2012. Statistical comparison between two air temperature and wind speed datasets. Proceedings of the 28th annual conference of the South African Society for Atmospheric Sciences, 26 - 27 September, Cape Town, South Africa. p 19-20.

Snyman, P.E. and Steyn, A.S. 2011. Monitoring the 2D Bloemfontein urban heat island. Proceedings of the 27th annual conference of the South African Society for Atmospheric Sciences, 22 - 23 September, Hartbeespoort, South Africa. p 61-62.

Odendaal, C. and Steyn, A.S. 2010. Accounting for Coriolis force in atmospheric motion on various planetary bodies. Proceedings of the 26th annual conference of the South African Society for Atmospheric Sciences, 20 - 22 September, Gariep Dam, South Africa. p 84-85.

Steyn, A.S., Walker, S. and Engelbrecht, F.A., 2009. Downscaling of climate change projections to daily rainfall over the upper Olifants River catchment. Proceedings of the 25th annual conference of the South African Society for Atmospheric Sciences, 9 - 10 September 2009, Tulbach, South Africa. p 46-47.


Research

Research:

Climate change and variability related impacts in agrculture.
Area(s) of Interest

• Weather analysis and forecasting • Synoptic meteorology • Fire weather • Climate change impacts in agriculture • Remote sensing in meteorology

Expertise
• Weather analysis and forecasting • Fire weather • Climate change impacts in agriculture
Courses Presented

AGRI1554: Physical and mechanised principles in Agriculture

CLIM2614: Fundamentals of Agrometeorology

SCCS3724: Research methodologies in Soil, Crop and Climate Sciences

CLIM3724: Climate change and variability

CLIM4834 / 6834: Physics and dynamics of the atmosphere

CLIM4844 / 6844: Weather analysis and forecasting

CLIM4864 / 6864: Tropical meteorology

CCSA7910: Climate change and variability

CCSC7900: Climate modelling and analysis

IWRM5820: Integrated water resources science

SOIL7904: Land Evaluation

 

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BLOEMFONTEIN CAMPUS FACULTY CONTACT

Elfrieda van den Berg (Marketing Manager)
T: +27 51 401 2531
E:vdberge@ufs.ac.za

QWAQWA CAMPUS FACULTY CONTACT

Dilahlwane Mohono (Faculty Officer)
T: +27 58 718 5284
E:naturalscienceqq@ufs.ac.za

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