Christel Hansen

email:                christel.hansen@up.ac.za
Tel:                    +27 (0) 12 420 4255
Office:               Geography Building 1-18
Consultation:     Tuesdays 09:00-12:00
 

Research profile

Christel is a senior lecturer in the Department of Geography, Geoinformatics and Meteorology at the University of Pretoria, South Africa. A geomorphologist and GIS specialist by training, her research interests include cold-climate geomorphology, Antarctic landscapes and ecosystems, active layer and permafrost dynamics, landscape and process studies, desert environmental studies, and remote sensing. Recently, she has focused more on the applied use of GISc in various fields. This has led to collaborations with individuals from engineering, renewable energy science, archaeologists, hazard / risk modellers, ecologists, zoologists, and remote sensing specialists. She also has extensive fieldwork experience, having spent 4 summer seasons in western Dronning Maud Land of Antarctica, one season on sub-Antarctic Marion Island, and having completed numerous fieldwork trips to the High Drakensberg of South Africa. Christel has also done fieldwork in the Altai Mountains of Russia.

Her technical expertise is focused on GISc, in particular geospatial statistical analyses, terrain analyses, and spatial MCDA, as well as (related to geomorphology), ground temperature and moisture dynamics, textural-fraction related work, and morphometrics. To read about her most recent research project, please click here.

Through her involvement in APECS and APECSSA, Christel has also helped organise numerous workshops, meetings, and webinars, and served as President of the Southern African Association of Geomorphologists (SAAG) 2019-2021. She is currently a member of the South African National Committee to the Scientific Committee on Antarctic Research (SCAR), and represents South Africa on the Standing Committee on Antarctic Geographic Information (SAGI). She is also a Geomatics Professional (GPr GISc1194) with the South African Geomatics Council (SAGC).

Qualifications

  • BSc Geoinformatics - Cum Laude, University of Pretoria (2009)
  • BSc (Hons) Environmental Analysis and Management - Cum Laude, University of Pretoria (2010)​
  • MSc (Geography) - Cum Laude, Rhodes University (2012)
  • PhD (Geography) - Rhodes Unversity (2018)
  • GPr GISc1194 (SA)

Courses presented

  • GIS 220 - Geographic data analysis (2018)
  • GIS 310 - Geographic Information Systems (2019-present)
  • GIS 708 - Advanced Geographic Information Systems (2020-present)
  • GGY 166 - Southern African geomorphology  (2016)
  • GGY 252 - Process geomorphology (2017)
  • GGY 265 - Geomorphology of the built environment (2017)
  • GGY 283 - Introductory Geographic Information Systems (2018)
  • GMC 110 - Cartography (2021-present)

Current research project

Christel, together with her Masters student Melandrie Smit, is currently working on using GISc to model energy expenditure along paths we, as humans, traverse. This is used in conjunction with modelling a path's distance, estimated time to walk along, and difficulty level. Her study sites are the nature reserves of the City of Tshwane (CoT). For more on this project, please visit the project page here.

National & international involvement

Postgraduate students

  • Boihang, L.M. 2020. Historical gully erosion growth in the Lower Thina Catchment, Eastern Cape. MSc. Supervisor: Hansen, C.D. Co-supervisor: Anderson, R.
  • Mahamba, N. 2022. Developing a hydropower atlas for South Africa. MSc. Supervisor: Hansen, C.D.
  • Mapuru. M.J. 2022. Understanding the two-way interactions between aardvark (Orycteropus afer) burrowing and the surrounding landscape characteristics at Rietvlei Nature Reserve, South Africa. MSc. Supervisor: Haussmann, N. Co-supervisor: Hansen, C.D.
  • Sadiki, M.M. 2022. Predicting mire distribution using species distribution models (SDMs) and GISc: a case study of the Prince Edward Islands (PEIs). MSc. Supervisor: Hansen, C.D. Co-supervisor: Greve, M.
  • Savy, J.D. 2023. MSc. Using free resources for the creation of digital elevation and geographic data: the case study of Rodrigues Island. MSc. Supervisor: Hansen, C.D. Co-supervisor: Munghemezulu, C.

Current postgraduate students

  • Goso, L. Using geospatial information systems to type river ecosystems in the SADC. Main supervisors: Heidi van Deventer, Co-supervisor: Lindie Smith-Adao, co-supervisor: Christel Hansen. MSc.
  • Ndlovu, N. TBC. Main supervisor: Heidi van Deventer. Co-supervisor: Christel Hansen. MSc.
  • Sadiki, M.M. Title to be decided. Main supervisor: Heidi van Deventer, Co-supervisor: Christel Hansen. PhD.
  • Simelane, S. Evaluating urban expansion and land use change in Mbabane, Eswatini, from 1997 to 2017 by using Landsat imagery. PhD.
  • Smit, M. Using GISc for energy expenditure modelling in human health, well-being, and a well-informed public. MSc

Research publications (journals)

  • Hansen, C.D. & Smit, M. 2023. Using GISc for modelling energy expenditure when traversing paths in nature reserves of the City of Tshwane, South Africa. Abstracts of the International Cartographic Association, 6, 85, doi.org/10.5194/ica-abs-6-85-202
    Hrbacek, F., Oliva, M., Hansen, C., Balks, M., O’Neill, T., de Pablo, M.A., Pontis, S., Ramos, M., Vieira, G., Abramov, A., Pastirikova, L.K., Guglielmin, M., Goyanes, G., Francellino, M., Schaefer, C., Lacelle, D. 2023. Active layer and permafrost thermal regimes in the ice-free areas of Antarctica, Earth Science Reviews, 104458, ISSN 0012-8252,
    doi.org/10.1016/j.earscirev.2023.104458
  • Bekker, A., van Dijk, M., Niebuhr, C.M., Hansen, C.D., 2021. Framework development for the evaluation of conduit hydropower within water distribution systems: A South African case study. Journal of Cleaner Production. 283: 10 February 2021, 125326. DOI: 10.1016/j.jclepro.2020.125326
  • Nel, W., Boelhouwers, J.C., Borg, C.-J., Cotrina, J.H., Hansen, C.D., Haussmann, N.S., Hedding, D.W., Nguna, A.A., Meiklejohn, K.I., Rudolph, E.M., Sinuka, S.S., Sumner, P.D. 2021. Earth science research on Marion Island (1996-2020): A synthesis and new findings. South African Geographical Journal. 103(1): 22-42. DOI: 10.1080/03736245.2020.1786445
  • Simelane, S.P., Hansen, C.D., Munghemezulu, C., 2021. The Use of Remote Sensing and GIS for Land Use and Land Cover Mapping in Eswatini: A Review. South African Journal of Geomatics, 10(2): 181-206. DOI10.4314/sajg.v10i2.13
  • Hedding, D.W., Erofeev, A.A., Hansen, C.D., Khon, A.V., Abbasov, Z.R. 2020. Geomorphological processes and landforms of glacier forelands in the upper Aktru River basin (Gornyi Altai), Russia: evidence for rapid recent retreat and paraglacial adjustment. Journal of Mountain Science. 17 (4): 824-837. DOI: 10.1007/s11629-019-5845-5.
  • Rudolph, E.M., Meiklejohn, K.I., Hansen, C.D., Hedding, D.W., Nel, W. 2018. Rock glaciers in the Jutulsessen, Dronning Maud Land, East  Antarctica. Polish Polar Research, 39 (1), 1-17. DOI: 10.24425/118736
  • Hedding D.W., Hansen C.D., Nel W., Loubser M.J., Le Roux J.J., Meiklejohn K.I. (2016). Rock mass loss on a nunatak in Western Dronning Maud Land, Antarctica. Arctic, Antarctic and Alpine Research, 48 (1), 1-8. DOI: 10.1657/AAAR0015-005
  • Hansen C.D., Meiklejohn K.I., Nel W, Loubser M.J., van der Merwe B.J. (2013). Aspect-controlled weathering observed on a blockfield in Dronning Maud land, Antarctica. Geografiska Annaler Series A: Physical Geography, 95, 305-313. DOI: 10.1111/geoa.12025

Other publications (book chapters, research reports, theses, popular articles)

Conference presentations (regional & international)

  • Goso, L., van Deventer, H., Smith-Adao, L. & Hansen, C.D. 2023. Using Geographic Information Systems (GIS) to assess the biodiversity and protection levels of Africa’s rivers. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Hogsback, South Africa. 
  • Hansen, C.D. & Smit, M. 2023. Using GISc for modelling energy expenditure when traversing paths in nature reserves of the City of Tshwane, South Africa. International Cartographic Conference, Cape Town, South Africa.
  • Hansen, C.D. & Smit, M. 2023. Using GISc for modelling energy expenditure when traversing paths in nature reserves of the City of Tshwane, South Africa. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Hogsback, South Africa. 
  • Loubser, M.J. & Hansen, C.D. 2023. The use of VR technology as an alternative to real-world field trips: a study in the geomorphology classroom. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Hogsback, South Africa. 
  • Ndlovu, N.B., van Deventer, H., Hansen, C.D. & Landman, W. 2023. Assessing changes in the hydrological regime of lacustrine wetlands on the Maputaland Coastal Plain, South Africa. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Hogsback, South Africa. 
  • Hansen, C.D. & Beckedahl, H. 2021. Applied geomorphology and its context in southern Africa. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Online.
  • Hansen, C.D. 2021. Cold versus warm arid climes: insights into ground thermal and moisture dynamics. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Online.
  • Mapuru, M.J, Haussmann, N.K. & Hansen, C.D. 2021. Exploring determinants of aardvark burrow locations at Rietvlei Nature Reserve, South Africa. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Online.
  • Xakayi, Z.P., van Deventer, H., Smith-Adao, L. & Hansen, C.D. 2021. Using geospatial information systems to type river ecosystems in the SADC. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Online. 
  • Meiklejohn, K.I. & Hansen, C.D. 2020. The Development of Blockfields in Western Dronning Maud Land: A New Model. Scientific Committee on Antarctic Research (SCAR) 36th Biennial Open Science Conference (OSC), Online.
  • Hansen, C.D. 2019. Topography, efficiency & GIS - what path is best? Southern African Association of Geomorphologists (SAAG) Biennial Conference, Chintsa East, South Africa.
  • Boihang, L.M. & Hansen, C.D. 2019.Historical gully erosion growth in the Lower Thina Catchment, Eastern Cape. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Chintsa East, South Africa.
  • Sadiki, M.M., Hansen, C.D. & Greve, M. 2019. Quantifying changes in surface water bodies in response to climate change on Marion Island. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Chintsa East, South Africa.
  • Hansen, C.D. & Meiklejohn, K.I. 2017. Delineating Dronning Maud Land based on biotic and abiotic factors. 1st International ANTPAS Workshop, Varese, Italy, 4-5 October 2017.
  • Hansen, C.D. & Meiklejohn, K.I. 2017. Short-term and high-frequency diurnal frost observations for Vesleskarvet, Antarctica. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Kwaluseni, Eswatini.
  • Hansen, C.D., Knox, J.T. & Wilmot. N. 2017. Communicating Polar Research in South Africa. 3rd APECS International Online Conference.
  • Hansen, C.D. & Meiklejohn, K.I. 2016. Seasonal and diurnal frost environments in western Dronning Maud Land: Preliminary observations. Scientific Committee on Antarctic Research (SCAR) 34th Biennial Open Science Conference (OSC), Kuala Lumpur, Malaysia.
  • Hansen, C.D., Meiklejohn, K.I. & Nel, W. 2016. Investigations into the ground thermal regime near Troll station, in the Jutulsessen of Antarctica: 2007- 2016. 11th International Conference on Permafrost (ICOP), Potsdam, Germany.
  • Meiklejohn, K.I., Kotzé, C. & Hansen, C.D. 2016. Active layer monitoring in Western Dronning Maud Land, Antarctica since 2007. 11th International Conference on Permafrost (ICOP), Potsdam, Germany.
  • Hansen, C.D., Meiklejohn, K.I. & Nel, W. 2015. An evaluation of thermal temperature regimes for three sites from Dronning Maud Land, Antarctica: Nonshøgda, Vesleskarvet and Robertskollen. 12th International Symposium on Antarctic Earth Science (ISAES), Goa, India.
  • Hansen, C.D., Meiklejohn, K.I. & Nel, W. 2015. Topographic and climatic forcing observed on ground surface temperatures. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Sani Pass, Lesotho.
  • Hedding, D.W., Hansen, C.D., Nel, W., Loubser, M. J., le Roux, J.J. & Meiklejohn, K.I. 2015. Rock mass loss on a nunatak in Western Dronning Maud Land, Antarctica: implications for periglacial landform development and habitat facilitation. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Sani Pass, Lesotho.
  • Meiklejohn, K.I., Nel, W., Hansen, C.D., Lee, J.E., Matcher, G.R., Dwight, R.A., Scott, D.A., Kotze, C., Rudolph, E.M., Ayres, G.A., Rosenfels, J.A., Hedding, D.W., Loubser, M.J., van der Merwe, B., le Roux, J.J., & Davis, J. 2015. Landscape processes in Antarctic ecosystems. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Sani Pass, Lesotho.
  • Dwight, R.A., Meiklejohn, K.I., Lee, J.E., Hansen, C.D. & Matcher, G.R. 2014. Geomorphic-biological interactions in the Ahlmannryggen and Jutulsessen areas of Western Dronning Dronning Maud Land. Scientific Committee on Antarctic Research (SCAR) 13th Biennial Open Science Conference (OSC), Auckland, New Zealand.
  • Meiklejohn, K.I., Davis, J., Dwight, R.A., Hansen, C.D., Hedding, D.W., le Roux, J.J., Lee, J.E., Loubser, M.J., Matcher, G.R., Nel, W., Rudolph, E.M., Scott, D.A. & van der Merwe, B. 2014. Landscape processes and the active layer environment in Western Dronning Maud Land. Scientific Committee on Antarctic Research (SCAR) 13th Biennial Open Science Conference (OSC), Auckland, New Zealand.
  • Meiklejohn, K.I., Dwight, R.A., Hansen, C.D., Scott, D.A. & Lee, J.E. 2013. Characteristics and development of an autochthonous blockfield, Western Dronning Maud Land, Antarctica. 8th International Conference on Geomorphology, Paris, France.
  • Hansen, C.D., Meiklejohn, K.I. & Nel, W. 2012. Aspect control on weathering observed on a blockfield in Dronning Maud Land, Antarctica. Southern African Association of Geomorphologists (SAAG) Biennial Conference, Gobabeb, Namibia.

Copyright © University of Pretoria 2024. All rights reserved.

COVID-19 Corona Virus South African Resource Portal

To contact the University during the COVID-19 lockdown, please send an email to [email protected]

FAQ's Email Us Virtual Campus Share Cookie Preferences