Identifying how the strategies used to evaluate flood damage can - PowerPoint PPT Presentation

Identifying how the strategies used to evaluate flood damage can affect the results of the evaluation Julian ELEUTERIO (1)(2) Anne ROZAN ( 1 ) , Robert MOSE (2) (1) UMR Cemagref/ENGEES Management of Public Utilities, France (2) UMR CNRS/UdS/ ENGEES Mechanical Institute of Fluids and Solids – UTR Urban Hydraulics, Strasbourg, France

Context Objectives Methodology Results & Perspectives Summary • Context • Objetives • Methodolody • Results and Perspectives J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 2 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives Context J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 3 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Generalities on flood risk – Flood risk management (reduction of overall losses) – Decision-making process: cost/ benefit and multi-criteria analysis... • Flood damages in France – 1/3 of municipalities concerned. – flood losses represent 80 % of damages associated to natural hazards ( 250 M€ per year in average) – Absence of national standard methods to evaluate damages of future floods (forecasting) J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 4 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluation of future flood damages in practice – Great majority of studies consider only part of total damages caused by floods (ex. buildings and contents) – Methods, models are generally determined in function of budget restriction and data availability . – Uncertainty rarely discussed and studied J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 5 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives Objectives J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 6 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Scientific: – Develop a research framework to analyze the impact of different strategies used to evaluate flood damages on the feasibility of the evaluation and on the accuracy of its results • Practical: – Support the application of future flood damage assessment methods J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 7 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives Methodology J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 8 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluating future floods damage potential Future Flood damage Pre-study EVALUATION PROCESS J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 9 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluating future floods damage potential Future Flood damage Pre-study EVALUATION PROCESS J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 10 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Pre-study Flood damage 4 2 Past damages data and damage 1 Flooding phenomenon data functions Definition of objective Urban system Flood system 3 Land-use and vulnerability data J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 11 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Pre-study Flood damages Determine damage-functions for Estimate the area for direct 7 5 each asset type damage evaluation 4 2 1 Definition of objectives Urban system Flood system 3 6 Determine types of damage and the area for indirect damage evaluation J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 12 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Pre-study Determine strategies to Determine data storage and model flood hazard Flood processing software 10 damage 8 7 5 4 2 1 Definition of objectives Urban system Flood system 3 6 9 Determine strategies to assess assets vulnerability to floods J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 13 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Perspectives • Pre-study ( 3C method ) Determine strategies to Determine data storage and model flood hazard Flood processing software 10 damage 8 Determine damage-functions for Estimate the area for direct 7 5 each asset type damage evaluation 4 2 Past damages data and damage 1 Flooding phenomenon data functions Definition of objectives Urban system Flood system 3 Land-use and vulnerability data 6 Determine types of damage and the area for indirect damage evaluation 9 Determine strategies to assess assets vulnerability to floods J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 14 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Perspectives • Evaluating future floods damage potential Future Flood damage Pre-study EVALUATION PROCESS Uncertainties • Based on the evaluation objectives & data availability : • Typology of damage • Scale of evaluation • Required data assessment methods • Models and methods to be used J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 15 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluating future floods damage potential Future Flood damage Pre-study EVALUATION PROCESS J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 16 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluation process •1 st STEP J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 17 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluation process •2 nd STEP •1 st STEP J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 18 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluation process •2 nd STEP 3 rd STEP •1 st STEP J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 19 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluation process PRE-STUDY Accuracy of DATA •2 nd STEP 3 rd STEP •1 st STEP J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 20 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Evaluation methodology Buildings and Hydrologic contents vulnerability Hydraulic Networks Geospatial vulnerability Flood system GIS-based Urban system HAZARD analysis VULNERABILITY Flood damage J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 21 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Correlating feasibility with uncertainty potential Buildings and Hydrologic contents vulnerability Change Hydraulic strategies Networks Geospatial vulnerability Flood system GIS-based Urban system HAZARD analysis VULNERABILITY Flood damage J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 22 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation

Context Objectives Methodology Results & Perspectives • Correlating feasibility with uncertainty potential Buildings and Hydrologic contents vulnerability Change Hydraulic strategies Networks Geospatial vulnerability Flood system GIS-based Urban system HAZARD analysis VULNERABILITY Measure Measure variability variability Flood damage J. ELEUTERIO et al. E-mail: JULIAN.ELEUTERIO@ENGEES.UNISTRA.FR 23 Identifying how the strategies used to evaluate flood damages can affect the results of the evaluation