Conference paper
Review and framework development for addressing flash flood potential using GIS assisted spatial-hydrologic modelling
Papers and Presentations of Queensland Surveying and Spatial Conference 2012, pp.1-16
Queensland Surveying and Spatial Conference (QSSC): The future of surveying and spatial science is Open, 2012 (Brisbane, Australia, 13-Sep-2012–14-Sep-2012)
Spatial Sciences Institute
2012
Abstract
One of the major implications of La Nina meteorological variability is the increase in frequency of extreme meteorological events, especially rainfall. In 2011 and 2012, southeast Queensland endured several extreme weather events, which resulted in major flood events in Brisbane, Toowoomba, Lockyer Valley and areas of the Sunshine Coast. These events prompted an inquiry into flood management practices associated with extreme rainfall. The recommendations from the Flood Inquiry Commission Report included the need for improved modelling of flood behaviour, especially for local areas. As a result, local authorities have now been given responsibility for forecasting flash floods. Accordingly, a project is being undertaken to develop a methodology for deriving a flash flood index using GIS data sets. This study proposes utilisation of high-resolution digital elevation models, land use maps, and derived catchment characteristics. Integrating these data with hydrological and meteorological data and by utilizing commercial and open-source hydrological and GIS tools, the project will derive an index of flash flooding potential. It is envisaged the mapping of a flash flood index will be beneficial to urban and infrastructure planners, risk managers and disaster response or emergency services personnel during extreme and intense rainfall events. This paper presents a preliminary review of available datasets and tools that have the potential to contribute towards deriving the flash flooding index. This paper proposes a number of available spatial and meteorological datasets that open source hydrological models can utilise for the derivation of an integrated spatial hydrological framework to determine a flash flood index for a given catchment or location.
Details
- Title
- Review and framework development for addressing flash flood potential using GIS assisted spatial-hydrologic modelling
- Authors
- Deidre Pincott-Miller (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringDamian McGarry (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringHelen Fairweather (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringSanjeev K Srivastava (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
- Publication details
- Papers and Presentations of Queensland Surveying and Spatial Conference 2012, pp.1-16
- Conference details
- Queensland Surveying and Spatial Conference (QSSC): The future of surveying and spatial science is Open, 2012 (Brisbane, Australia, 13-Sep-2012–14-Sep-2012)
- Publisher
- Spatial Sciences Institute
- Date published
- 2012
- Copyright note
- Copyright © 2012 The Authors. Reproduced here with permission of the copyright holder.
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Sustainability Research Cluster
- Language
- English
- Record Identifier
- 99450234702621
- Output Type
- Conference paper
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