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Watershed Planning within a Quantitative Scenario Analysis Framework
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Published on: July 24, 2016

Flood vulnerability indices at varying spatial scales.

S F Balica1, N Douben, N G Wright

  • 1UNESCO-IHE Institute for Water Education, Delft, The Netherlands. s.balica@unesco-ihe.org

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|November 20, 2009
PubMed
Summary

This study introduces a Flood Vulnerability Index to assess flood damage risks across river basins, sub-catchments, and urban areas. The index quantifies vulnerability, aiding targeted flood risk management and local decision-making.

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Area of Science:

  • Environmental Science
  • Hydrology
  • Risk Management

Background:

  • Increasing frequency of natural disasters due to climate variability and human development.
  • Global populations face significant vulnerability to natural disasters, particularly floods.
  • Need for advanced tools to assess and manage flood risks at multiple spatial scales.

Purpose of the Study:

  • To develop a methodology for a Flood Vulnerability Index (FVI).
  • To assess conditions influencing flood damage at river basin, sub-catchment, and urban scales.
  • To enable in-depth analysis and identification of local flood vulnerability hotspots.

Main Methods:

  • Development of a methodology using indicators to compute a Flood Vulnerability Index.
  • Distinguishing characteristics at different spatial scales (river basin, sub-catchment, urban area).
  • Application of the methodology to various case studies across different spatial scales.

Main Results:

  • A standardized Flood Vulnerability Index (0-1) was computed, indicating comparative vulnerability.
  • Methodology allows for in-depth analysis and identification of local flood vulnerability hotspots.
  • Observed varying relationships between flood vulnerability across different spatial scales.

Conclusions:

  • The Flood Vulnerability Index provides a quantifiable measure for assessing flood risk.
  • The index supports international organizations and local decision-makers in developing targeted flood management strategies.
  • Findings highlight the importance of scale-specific analysis in understanding and mitigating flood vulnerability.