Risk mapping

By mapping only water depth and inundation areas, no decision support for flood resilience related planning is possible. Risk maps include the consequences of flood events in monetary values combined with return period as weighting factor and provide in this way a basis for sustainable planning.

Distinguish between two different user groups for publishing risk maps:

  • water related engineers or administrative working people
  • inhabitants who are affected by flood

When risk maps are presented in public, a clear plain risk zoning is necessary. High consternation will occur in areas with high damage potential, which are located near to the river.

In Europe exists no unique method for risk mapping at present. Some approaches determine risk based on water depths or combination of velocity and return periods.


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Module
Flood Risk Assessment
Source

TUHH

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