Hazard Zone of a PPRN: Flood and Landslide Risk Areas in Agenais and Confluents

Agenais and Confluents municipalities contain areas exposed to one or more natural hazards, as defined by the hazard map used for risk analysis of the Risk Prevention Plan (PPR). The dataset, produced by the Bureau de Recherches Géologiques et Minières (BRGM), represents a synthesis of calculated, modeled, or observed hazard data. It was last updated in June 2018.

Use Cases

• Delineate high-risk zones for construction permits based on hazard intensity and probability.
• Model potential damage from natural events based on graduated hazard zoning.
• Assess the adequacy of existing protective structures against hazards.
• Identify areas of 'no or insignificant hazard' for development planning.

Strengths

• Synthesizes multiple sources of hazard data (calculated, modeled, observed) into developed zones.
• Explicitly includes areas behind protective structures, accounting for failure scenarios.
• Defines 'no or insignificant hazard zones' where the hazard has been studied and found nil.

Limitations

• Last updated in June 2018; freshness should be verified for current risk assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial resolution are unknown, which may limit suitability assessment.

Provenance

Source

BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

Collection Method

Synthesis of hazard studies assessing intensity and probability of dangerous phenomena.

Freshness

Last updated 2021-06-10 00:00:00

Geography

Municipalities regulated by a PPR terrain movements in Agenais and Confluents regions.