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Flood risk assessments at different spatial scales.

H de Moel1, B Jongman1, H Kreibich2

  • 1Institute for Environmental Studies, VU University, Amsterdam, Netherlands.

Mitigation and Adaptation Strategies for Global Change
|September 11, 2018
PubMed
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Flood risk assessments are crucial for global change adaptation. This review highlights scale-dependent needs for better flood management, emphasizing data harmonization and validation for improved flood risk models.

Keywords:
AdaptationFlood riskRisk assessmentSpatial scales

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Area of Science:

  • Environmental Science
  • Risk Management
  • Climate Change Adaptation

Background:

  • Flood risk management is vital for adapting to global change.
  • A priori flood risk assessments are integral to modern flood management.
  • Existing methodologies vary across different spatial scales.

Purpose of the Study:

  • To review differences in flood risk assessment methodologies across spatial scales.
  • To identify research needs for improving flood risk assessments at various scales.
  • To enhance the understanding of flood risk management strategies.

Main Methods:

  • Comparative analysis of flood risk assessment frameworks.
  • Literature review of methodologies and their applications.
  • Identification of scale-specific challenges and research gaps.

Main Results:

  • Global/continental scales require harmonized flood defense data and indirect economic effect inclusion.
  • Meso-/micro-scales need better understanding of flood impacts on critical infrastructure.
  • Validation of flood risk assessments is limited across all scales, necessitating more post-disaster data.

Conclusions:

  • Future research should focus on scale-specific data needs and validation improvements.
  • Enhanced understanding of indirect economic impacts and infrastructure vulnerability is critical.
  • Improved calibration and validation of flood risk models are essential for effective flood management.