Publications
Laister G. (2002) Prediction, Management and Control of Odour from landfill sites.
Submitted in fulfilment of the requirements for the degree of Master of Science in Engineering, University of Natal, Durban, South Africa. Abstract: Due to the spread of urbanisation and increased environmental awareness, odour has become a major problem in...
Stretch D.D., Laister G., Strachan L.J., Saner M. (2001) Odour trails from landfills. Proceedings of the Eighth International waste management and landfill Syposium, Sardinia
This paper won the Kriton Curi award for best conference paper. Abstract: The emission of offensive odour from landfill sites is a nuisance that generates public opposition to the existence of these facilities. The aim of our research is to develop technology for an...
Laister G., Stretch D.D., Strachan L.J. (2001) On Odour trails from landfills. Proceedings of the 1st IWA International Conference on Odour and VOC’s: Measurement, Regulation and Control Techniques, Sydney, Australia
Abstract: Odour emissions from landfill sites generate public opposition to the existence of landfills. Our research aims to develop technology for an effective management and decision support system for landfill operations that will minimise the negative impacts of...
Laister G., Stretch D.D., Strachan L.J. (2002) Managing landfill odour using community feedback. Proceedings of Wastecon 2002, Bienniel Conference & Exhibition, Durban, South Africa
Abstract: An “Odour Management System” (OMS) has been developed to generate graphical predictions of dilution of gas from emission sources on a “real-time” basis. Particular focus has been on odour from the open working face at landfills. An OMS has been implemented...
Clothier A.N. and Pegram G.G.S. (2001). The “String of Beads” model: Incorporating radar and raingauge data. WRC Report No. 1010/1/01. Report to the Water Research Commission, Pretoria, South Africa
Executive Summary: What is this new version of the String of Beads Model? Weather radar measures rainfall rates over a large area in fine spatial detail and very frequently. This translates into a circular area up to 200km across with 1km resolution every 5 minutes....
Pegram G.G.S. and Clothier A.N. (2001). High Resolution Space-Time Modelling of Rainfall: The “String of Beads” Model. Journal of Hydrology, Vol 241. pp26-41
Abstract: A stochastic space-time model of rainfall is proposed, which is defined by a small number of parameters and models rainfall intensity images measured by radar. It is a phenomenological (rather than a physically based) model which provides sequences of...
Pegram G.G.S. and Clothier A.N. (2001) Downscaling Rainfields in Space and time using the String of Beads Model in Causal Mode. Hydrology and Earth System Sciences. Vol 5(2). pp 175-186
Abstract: The String of Beads model is a space-time model of rainfields measured by weather radar. It is here driven by two auto-regressive time series models, one at the image scale, the other at the pixel scale, to model the temporal correlation structure of the...
Pegram G.G.S. and Clothier A.N. (1999). High Resolution Space-Time Modelling of Rainfall: The “String of Beads” model. WRC Report No. 752/1/99. Report to the Water Research Commission, Pretoria, South Africa
Executive Summary: What is the background to this research? A valuable measure of the country’s potentially available water resources is through rainfall measurements. These measurements help with the quantitative definition of drought and possible climatic change,...
Pegram G.G.S. and Clothier A.N. (1999). The String of Beads Rainfall Model and its Application in Simulation and Forecasting. Proceedings 9th SA National Hydrology Symposium, University of the Western Cape, South Africa, November
Pegram G.G.S. and Clothier A.N. (1999). The String of Beads Rainfall Model and its Application in Simulation and Forecasting. Proceedings 9th SA National Hydrology Symposium, University of the Western Cape, South Africa, November.
Laister G., Stretch D.D., Strachan L.J. (2000) Odour trails from landfills. Proceedings of Wastecon 2000, Bienniel Conference & Exhibition, Cape Town, South Africa
Abstract: Odour emissions from landfill sites generate public opposition to the existence of landfills. Our research aims to develop technology for an effective management and decision support system for landfill operations that will minimise the negative impacts of...