Natural and Nature-based Flood Risk Management:
A Knowledge Map

STAGE 1: PRELIMINARY ANALYSIS AND ASSESSMENT

Step 1: Understand the watershed and social context

Step 2: Understand the risk and climate uncertanities

Process Step: Set preliminary flood risk management objectives

STAGE 2: METHOD IDENTIFICATION

Step 1: Identify suitable methods

Step 2: Compare the methods

Process Step: Review and revise the flood risk management objectives

STAGE 3: METHODS SELECTION AND DESIGN

Step 1: Consider preliminary specifications, management issues and cost estimates

Step 2: Combine the methods

Step 3: Review the selected methods

Process Step: Conduct feasibility studies, environmental assessments and review designs

FLOOD GREEN GUIDE FRAMEWORK AND STEPS
STAGE 4: OPERATION AND MONITORING

Step 1: Develop detailed operation plans

Step 2: Develop detailed monitoring plans

Process Step: Prepare evaluations

STAGE 5 : PROJECT EVALUATION

Step 1: Periodically evaluate the methods and the projects as a whole

Process Step: Evaluate with exprets and proceed to closure or project revision

Stage 01 - Preliminary analysis and risk assessment
  1. Understanding Context
    1. Watershed
      1. Geomorphology
      2. Eco-hyrdology
      3. Hydraulics / Hydraulic Engineering
      4. Hydrology and Hydroclimatology
    2. Social/institutional context
      1. Institutional analysis
      2. Socio-economic surveys
      3. Stakeholder analysis
  2. Understanding Risk
    1. Hazards, vulnerabilities and risk
      1. Flood Risk Assessment
      2. Flood loss assessments/ Fragility
      3. Vulnerability analysis
      4. Community mapping
      5. Hazard modelling, mapping and flood forecasting
    2. Uncertainties and climate change
  1. Overarching concepts for objective setting
    1. Trans-boundary flood management
    2. Flood insurance/risk sharing
    3. Community Engagement
    4. Urban flooding
    5. Climate Change Adaptation and Mitigation
    6. Disaster Resilience
    7. DRR/EBDRR/ CBDRR
    8. Climate Resilience
    9. IWRM
    10. Integrated Flood Management
    11. Watershed Management
    12. Ecosystem Services
    13. Sustainable development
  2. Method identification and comparison
    1. Soil and watershed protection legislation
    2. Flood governance
    3. Flood monitoring and early warning systems
    4. Flood preparedness
    5. Building flood proofing
    6. Land-use planning and zoning
    7. Green roof/walls, Blue roofs
    8. Rainwater harvesting
    9. Riparian management
    10. Coastal and Reef Conservation
    11. Wetland conservation
    12. Soil conservation/bio-engineering
    13. Swales and Infiltration Devices
    14. Natural drainage-path restoration and Removal of barriers
    15. Storm water engineering
    16. Flood control engineering
  1. Preliminary methods selection
    1. Costing methods
    2. Standards and directives
    3. Method specification (technical, material, operations)
  2. Method combination and final selection
    1. Strategic Environmental Assessment
    2. Environmental Impact studies
    3. Optimisation methods
    4. SWOT analysis
    5. Project appraisal and feasibility studies
  3. Design
    1. Design guidelines and codes
  1. Construction/Implementation
    1. Flood governance and standing orders
    2. Operation and maintenance of engineering head works
    3. Procurement management
    4. Contract administration
    5. Project planning and scheduling
    6. Costing, budgeting and cost-management
    7. Project management
  2. Project operation and Maintenance
  1. Monitoring
  2. Project Evaluation

Trans-boundary flood management