Flood Zone 3a

Key term for Edexcel GCSE Geography B, used in River Fieldwork.

Definition

Land with a 1% or greater annual probability of river flooding.

Exam Context

Flood Zone 3a appears in Edexcel GCSE Geography B revision content for Geographical Investigations, especially River Fieldwork and Secondary data sources.

Geographical Investigations River Fieldwork Secondary data sources

Found in Revision Notes

Geographical Investigations

Secondary data sources

River Fieldwork • Secondary data sources

Revise note

Related Key Terms

1 in 1000 year flood 1 in 100 year flood Accuracy Annotation

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Annual Exceedance Probability (AEP)

Anomalous weather

Antecedent rainfall

Attribute