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Analysis of wildfires in South Africa : emphasising disaster prevention and preparedness

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dc.contributor.advisor Marjanovic P en
dc.contributor.author Ndaba N en
dc.date.accessioned 2016-09-22T11:18:04Z
dc.date.available 2016-09-22T11:18:04Z
dc.date.created 2000 en
dc.date.submitted 2004 en
dc.identifier.uri http://hdl.handle.net/20.500.11892/109358
dc.description.abstract Among the many disasters that occur in South Africa, wildfires are raising serious concerns. These wildfires have profound effects on land use, land cover, local economies, global trace gas emissions, and health. The urgent need for improved disaster management techniques at a local level can therefore not be questioned. In order to achieve this, a better understanding of the wildfire hazard including the vulnerability of people and environments is required. In this research, the wildfire hazard is studied and analysed. The practical applicability of Advanced Very High Resolution Radiometer (AVHRR)-derived Normalised Difference Vegetation Index (NDVI) as a tool in wildfire hazard prediction and hence disaster prevention and preparedness at study areas is investigated. For selected local areas, 10-day composites of AVHRR-derived NDVI images were input into a Geographic Information System (arcview 3.2) and analysed. The NDVI trends were compared with the rainfall data over the same time period, to determine the correlation and significance between them. The applicability of NDVI as a tool in prediction of wildfire occurrence was tested by comparing the results of the NDVI analysis with actual fire occurrence data. The results of this study show that AVHRR-derived NDVI data on its own cannot be used as a practical tool for predicting wildfire occurrence in the study areas. Furthermore, data and information needs for computing a wildfire vulnerability analysis were identified. Combining hazard and vulnerability analyses would make firmer predictions of fire occurrence at a local level, and this would improve our wildfire disaster management strategies (specifically pre-disaster planning). Further research is needed to address concerns raised from this study. The study improved our understanding of the wildfire hazard and identified gaps to be filled both for the preparation of a national disaster vulnerability atlas and local disaster management. en
dc.language English en
dc.title Analysis of wildfires in South Africa : emphasising disaster prevention and preparedness en
dc.type Masters degree en
dc.description.degree MSc (Civ Eng) en

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