RSRU – Publications

2008

Pillay D.L. and Sebitloane T. Assessing and quantitatively understanding organisational capabilities in earth observation: a case study of the CSIR. African Skies (2008).

Van Den Bergh F. and Vieira R. Measuring the change in porosity of breakwater armour unit configurations. Parliamentary Grant report 15 March 2008.

Wessels K.J., Prince S.D., Reshef I. Mapping land degradation by comparison of vegetation production to spatially derived estimates of potential production. Journal of Arid Environments, Vol. 72(10) pp.1940-1949, October 2008.

Udahemuka G., Van Wyk B.J., Van wyk M.A., and Van Den Bergh F. Robust fitting of diurnal brightness temperature cycles South African Computer Journal Vol. 40, pp. 31-36, June 2008.

Olivier J.C., Wessels K.J., Araya S. Detection of land cover change using an artificial neural network within a temporal sliding window on MODIS time series data. IEEE International GeoSciences and Remote Sensing Society (IGARSS) Symposium. Boston, Massachusetts, U.S.A., 6-11 July 2008.

Abeigne Ella L.P., Van Den Bergh F., Van Wyk B.J., Van Wyk M.A. A comparison of texture feature algorithms for urban settlement classification. IEEE International GeoSciences and Remote Sensing Symposium (IGARSS), Boston, Massachusetts, U.S.A., 6-11 July 2008.

Steenkamp K. Wessels K.J., Archibald S.A., Von Maltitz G. Long-term phenology and variability of Southern African vegetation. IEEE International GeoSciences and Remote Sensing Society (IGARSS) Symposium. Boston, Massachusetts, U.S.A., 6-11 July 2008.

Steenkamp K., Wessels K.J., Archibald S.A., Von Maltitz G., Long-term phenology and variability of Southern African vegetation. CSIR Outcomes Conference. Pretoria, South Africa, November 2008.

Bachoo A., Van Den Bergh F., Gazendam A.D. A comparison of data file and storage configurations for efficient temporal access of satellite image data. Free and Open Source Software for Geospatial Conference, FOSS4G, Cape Town, South Africa, 29 September-3 October 2008

Vieira R., Van Den Bergh F., Van Wyk B.J. Fiducial-based monocular 3D displacement measurement of breakwater armour unit models. Nineteenth Annual Symposium of the Pattern Recognition Association of South Africa (PRASA 2008). Cape Town, South Africa, 27 - 28 November 2008.

Van Den Bergh F., Holloway J.P., Pienaar M., Koen R., Elphinstone C.D., Woodborne S. A comparison of various modelling approaches applied to cholera case data. Orion: Journal of the Operations Research Society of South Africa, Vol. 24(1) pp. 17-36, June 2008.

Toudjeu I.T., Van Wyk B.J., Van Wyk M.A., Van Den Bergh F. Global image feature extraction using slope pattern spectra. 5th International Conference on Image Analysis and Recognition (ICIAR), Povoa de Varzim, Portugal, 25-27 June 2008.

2007

P Frost and R Scholes (2007) Advanced fire Information system In: The Full Picture. Edited by Group on Earth Observations (GEO) Secretariat. ISBN 978-92-990047-0-8

Wessels, K. and Prince, S. (2007) Monitoring land degradation with long-term satellite data in South Africa. In: The Full Picture. Edited by Group on Earth Observations (GEO) Secretariat. ISBN 978-92-990047-0-8

B.J. van Wyk, M.A. van Wyk, F. van den Bergh, Difference spectra: A new tool for global image feature extraction, SAIEE Africa Research Journal, Vol. 98(2), pp. 66-67, 2007.

F. van den Bergh, M.A. van Wyk, B.J. van Wyk, G. Udahemuka. A comparison of data-driven and model-driven approaches to brightness temperature diurnal cycle interpolation, SAIEE Africa Research Journal, Vol. 98(3), pp. 81-86, 2007.

Roy, D.P., Trigg, S.N., Bhima, R., Brockett, B., Dube, O., Frost, P., Govender, N., Landmann, T., Le Roux, J., Lepono, T., Macuacua, J., Mbow, C., Mhwandangara, K., Mosepele, B., Mutanga, O., Neo-Mahupeleng, G., Norman, M., Virgilo, S., 2006, The utility of satellite fire product accuracy information - perspectives and recommendations from the southern Africa fire network, IEEE Transactions on Geoscience and Remote Sensing, 44:1928-1930. ISSN: 0196-2892

Brits R, Engelbrecht AP, van den Bergh F. Locating multiple optima using particle swarm optimization, APPLIED MATHEMATICS AND COMPUTATION 189 (2): 1859-1883 JUN 15 2007

Wessels K.J., Prince S.D., Malherebe J., Small J. and P.E. Frost (2007) Can human-induced land degradation be distinguished from the effects of rainfall variability? A case study in South Africa. Journal of Arid Environments, 68, 271-297.

Prince S.D., Wessels K.J. Tucker C.J. and Nicholson S.E. (2007) Desertification in the Sahel: a reinterpretation of a reinterpretation. Global Change Biology.13, 1308-1313.

Wessel K.J., Prince S.D., M. Carroll and J. Malherbe (2007) Relevance of rangeland degradation in semi-arid Northeastern South Africa to the non-equilibrium theory. Ecological Applications. 17, 815-827

Abeigne Ella LP, Van Wyk BJ, and Van Wyk MA, Van den Bergh F, “Extraction and classification of objects and features from satellite images”, PRASA 2007: Eighteenth Annual Symposium of the Pattern Recognition Association of South Africa, Pietermaritzburg, Kwazulu-Natal, South Africa, 28-30 November 2007, p. 166.

Udahemuka G, Van Den Bergh F, Van Wyk M.A. (2007), Robust fitting of diurnal brightness temperature cycle. Pattern Recognition Association of South Africa (PRASA). Pietermaritzburg.

Olivier J.C., Araya, S.T. and Wessels, K.J. (2007), Detection of land cover change using an Artificial Neural Network on a time-series of MODIS satellite data. Pattern Recognition Association of South Africa (PRASA). Pietermaritzburg.

F. van den Bergh, K. J. Wessels, S. Archibald, A. K. Bachoo, K. Steenkamp. European Association of Remote Sensing Laboratories (Earsel) - Time Series workshop poster: “Time-series Analysis of Hyper-temporal satellite data using High Performance Computing”. June 2007 Bolzano, Itally

K.J. Wessels and S.D. Prince “Monitoring desertification’s impact on vegetation production in South Africa using long-term AVHRR and MODIS data: A test of the non-equilibrium rangeland theory.” 32nd International Symposium on Remote Sensing of Environment Sustainable Development through Global Earth Observations June 25-29, 2007, San Jose, Costa Rica ISBN: 978-0-932913-12-8

AK Bachoo and Sally Archibald, “Influence of using date-specific values when extracting phenological metrics from 8-day composite NDVI data”, Proceedings of Multi Temp 2007, ISBN 1-4244-0846-6 (Peer-reviewed)

P.E. Frost, H. Vosloo, D. Davis, S. Kumar, J. Decloites, & J. Schmaltz (2005)Development of an Advanced Fire Information System for Southern Africa

De la Riva, J., Pérez-Cabello, F. & Chuvieco, E. (Eds) 2005 Proceedings of the 5th International Workshop on Remote Sensing and GIS Applications to Forest Fire Management: Fire Effects Assessment: 161-166 Universidad de Zaragoza. ISBN: 84-96214-52-4

Frost, P. and Vosloo, H. (2006). “Providing Satellite-based Early Warnings of Fires to Reduce Fire Flashovers on South African Transmission Lines”, 10th Biennial Australasian Bushfire Conference (Bushfire-2006), Brisbane, Australia. http://www.fireandbiodiversity.org.au/ ISBN: 1-84628-826-6

Frost, Philip; Annegarn, Harold, Providing satellite-based early warnings of fires to reduce fire flashovers on South Africa’s transmission lines, Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International Date: 23-28 July 2007, Pages: 2443 - 2446 Digital Object Identifier 10.1109/IGARSS.2007.4423336

P.E. Frost, H. Vosloo and H. Annegarn, Providing Satellite based early warnings of fires to reduce fire flashovers on South Africa’s transmission lines, International Union of Geodesy and Geophysics (IUGG) 2 -13 July 2007, Perugia, Italy Invited Speaker

Van den Bergh F; Parbhoo C; Tchangou I, Urban settlement classification: A multi-sensor study, CSIR Tech. Rep., March 2007. Pta Gen 143594

Dechlan Pillay, Determining Spatial Growth Patterns in South African Cities., Position IT, Jan / Feb 2007

2006

R. Brits, A. P. Engelbrecht and F. van den Bergh, Particle swarm niching, Applied Mathematics and Computation, in press. (Accepted December 2006).

Van Den Bergh F; Van Wyk MA; Van Wyk BJ, A comparison of data-driven and model-driven approaches to brightness temperature diurnal cycle interpolation, 17th Annual Symposium of the Pattern Recognition Association of South Africa, Parys, South Africa, 29 Nov - 1 Dec 2006. GWDMS - PTA General No 143168

Hauptfleisch AC; Van Den Bergh F; Bachoo AK; Engelbrecht AP, A comparison of canny and V1 neural network based edge detectors applied to road extraction, 17th Annual Symposium of the Pattern Recognition Association of South Africa, Parys, South Africa, 29 Nov - 1 Dec 2006. GWDMS - PTA General No 143020

Hauptfleisch AC; Van Den Bergh F; Bachoo AK; Engelbrecht AP, A comparison of canny and V1 neural network based edge detectors applied to road extraction, 17th Annual Symposium of the Pattern Recognition Association of South Africa, Parys, South Africa, 29 Nov - 1 Dec 2006. GWDMS - PTA General No 143020

P Frost, H Vosloo, Protecting Transmission, Quest: Science for South Africa, Volume 2, Nr 3, 2006, p 6-7

P Frost, H Vosloo, Fighting fire with technology, Afgriland, July/August, 2006, Vol 50 Nr 4.

P. Frost, H. Vosloo, Providing satellite-based early warning of fires to reduce fire flashovers on South Africa’s transmission lines. Life in a fire-prone environment: translating science into practice. Proceedings of the 10th Biennial Australasian Bushfire Conference 2006. Brisbane, 6-9 June 2006. Brisbane: Griffith University

Van Den Bergh F; Engelbrecht AP, A study of particle swarm optimization particle trajectories, Information Sciences, Vol. 176, Pages: 937–971, Apr 2006. Pta Gen 135072

Asheer Kasar Bachoo and Frederic Claudel, Open Source Software (OSS) and high speed satellite image registration, GIS Development Africa, Volume: 1, Issue: 1, 2006

Dechlan Pillay, Satellite imagery and related content information provided., Oxford Successful Social Sciences Grade 9 Learners Book, ISBN: 0195763246, 2006

Dechlan Pillay, Two Satellite images (Carla -Eastern Cape and Ladysmith –KZN) were provided with the relevant theor., Geography for all Grade 12 Learners Book, ISBN: 085320036 X, 2006

Dechlan Pillay, Provision of Landsat ETM satellite imagery over Kimberley depicting the Kimberley mining hole., Lets explore: Interactive Atlas and map Skills for the Senior Phase, ISBN: 0636064263, 2006

2004

Wessels K.J., S.D. Prince, Frost P.E., van Zyl D. (2004) Assessing the effects of human-induced land degradation in the former homelands of northern South Africa with a 1km AVHRR NDVI time-series. Remote Sensing of Environment, 91, 47-67.

Wessels K.J., DeFries, R., Anderson L.O., Hansen A.J., Powell, S.L. and Moran E.F. (2004) Mapping regional land cover with MODIS data for biological conservation: Examples from the Greater Yellowstone Ecosystem, USA and Pará State, Brazil. Remote Sensing of Environment 92, 67-83.

2003

Wessels K.J., Reyers B., Van Jaarsveld A.S. and Rutherford M.C. (2003) Identification of potential conflict areas between land transformation and biodiversity conservation in north-eastern South Africa. Agriculture, Ecosystems and Environment 95, 157-178.

McCarthy J.M., Gumbricht T., McCarthy T., Frost P.E., Wessels K.J. and Seidel F. (2003) Flooding Patterns of the Okavango Wetland in Botswana between 1972 and 2000. Ambio, 32, 453-457

2002

Gumbricht T., McCarthy T.S., McCarthy J.M., Roy D., Frost P.E., Wessels K.J. (2002) Remote sensing to detect sub-surface peat fires and peat fire scars in the Okavango delta, Botswana. South African Journal of Science 98, 351-358.

Reyers B., Wessels K.J. and van Jaarsveld A.S (2002) An assessment of biodiversity surrogacy options in the Limpopo Province of South Africa. African Zoology 37, 185-195.

Erasmus B.F.N., Van Jaarsveld A.S. Chown S.L.., Kshatriya M. and Wessels K.J. (2002) Vulnerability of South African animal taxa to climate change. Global Change Biology 8, 679-693.

Reyers B., Fairbanks D.H.K., Wessels K.J., and Van Jaarsveld A.S. (2002) A multicriteria approach to reserve selection: Addressing long-term biodiversity maintenance. Biodiversity and Conservation 11, 769-793.

2000

Wessels K.J., Reyers B. and Van Jaarsveld A.S. (2000) Incorporating land cover information into regional biodiversity assessments in South Africa. Animal Conservation 3, 67-79.