• River flooding is one of the most common natural hazards worldwide.
• Frequency is projected to increase in the near future.
• Climate change further intensifies this hazard.
• Flood risk analysis (FRA) can be performed at both large and small scales.
• Catchment-scale analyses are valuable, but accuracy needs careful consideration.
To develop a methodology to assess catchment-scale flood risk.
The FRA is conducted through a three-step procedure that includes:
(1) Determination of need for assessment
(2) Hazard level assessment
(3) Exposure level assessment