Annual exceedance probability (AEP)
Chance an event will be equalled/exceeded in any year (e.g., 1% AEP ≈ 1-in-100 year).
Example Usage
"We report thresholds in both AEP and return period to avoid misinterpretation."
Typical Units & Data
% per year
Related Keywords
Related Terms
Flood hazard
The likelihood and physical characteristics of flooding at a location (extent, depth, velocity), without considering impacts..
Risk, Governance & ResilienceFlood risk
Flood hazard combined with the potential for harm to people, assets, operations or the environment..
Risk, Governance & ResilienceExposure
People, assets or services located in areas that could be flooded..
Risk, Governance & ResilienceVulnerability
How susceptible exposed receptors are to damage at a given flood intensity (depth/velocity/duration)..
Risk, Governance & ResilienceConsequence (impact)
The resulting effects if flooding occurs (safety, financial loss, service disruption, environmental harm)..
Risk, Governance & ResilienceFlood Risk Assessment (FRA)
A structured assessment of flood sources, pathways and impacts for a site/development, with mitigation measures..
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