Flood Inundation Modeling and Hazard Mapping under Uncertainty in the Sungai Johor Basin Malaysia 1st Edition by Anuar Ali 0429889488 9780429889486

1 Introduction

1.1 Background

1.2 Problem statement

1.3 Flood mapping

1.4 Uncertainty in flood hazard mapping

1.5 Research questions

1.6 Aim and research objective

1.7 Dissertation Structure

2 Literature Review

2.1 What is floods

2.2 Types of flood

2.3 Flood prone areas

2.4 Hazard and flood hazard

2.4.1 Definition

2.5 Flood modelling

2.5.1 Mathematical model application

2.5.2 GIS environment

2.5.3 Input data for flood modelling

2.6 Uncertainty in flood modelling and mapping

2.6.1 Definition of uncertainty

2.6.2 Types of uncertainty

2.6.3 Sources of uncertainty

2.7 Flood mapping

2.7.1 Types and content of flood map

2.7.2 Use of flood maps

2.7.3 Flood hazard map in Malaysia

3 Study area and data availability

3.1 Study area

3.1.1 Administrative

3.1.2 River systems

3.1.3 Climate

3.1.4 Land use

3.1.5 Floodissues

3.2 Data Availability

3.2.1 Hydrological data

3.2.2 Topography data

4 1-D hydraulic modelling: the role of cross‐sections spacing

4.1 Introduction

4.2 Methodology

4.2.1 Hydraulic Modelling

4.2.2 Cross‐section spacing

4.3 Results and Discussion

4.3.1 Model performance

4.3.2 Comparing flood water profiles and inundation maps

4.3.3 Representation of bridge structures in the model

4.4 Concluding remarks

5 2-D hydraulic modelling: the role of digital elevation models

5.1 Introduction

5.2 Differentiation of DEMs re‐sampling technique

5.3 Results

5.3.1 Model Calibration and validation

5.3.2 Flood simulation

5.4 Conclusions

6 1-D hydraulic modelling: the role of digital elevation models

6.1 Introduction

6.2 Available data

6.2.1 Hydraulic Modelling

6.2.2 Digital Elevation Model

6.3 Methodology

6.3.1 Evaluating the DEMs quality

6.3.2 Model calibration and validation

6.3.3 Quantifying the effect of the topographic data source on the water surface elevation and inundation area (sensitivity analysis)

6.3.4 Uncertainty Estimation‐ GLUE analysis

6.4 Results and discussion

6.4.1 Quality of DEMs compared with the reference points

6.4.2 Model calibration and validation

6.4.3 Quantifying the effect of the topographic data source on the water surface elevation and inundation area

6.5 Conclusions

7 Uncertainty in simulating design flood profiles and inundation maps on the Johor River, Malaysia

7.1 Introduction

7.2 Methodology

7.2.1 Model calibration and validation

7.2.2 Estimation of design flood profile

7.2.3 Simulation of flood inundation maps

7.3 Results and discussion

7.3.1 Calibration and validation

7.3.2 Estimation of design flood profile

7.3.3 Simulation of flood inundation map

7.4 Conclusions

8 Conclusions and Recommendations

8.1 Conclusion

8.1.1 Summary of contributions