Flood Risk Perimeters for Chaniers Commune, Charente-Maritime, France

Official flood risk perimeters for the commune of Chaniers in Charente-Maritime, France, managed by the Bureau de Recherches Géologiques et Minières. The dataset delineates boundaries at different stages of the PPRN (Natural Risk Prevention Plan) development process, each with a defined legal status and effective date. It was last updated on September 17, 2021.

Use Cases

• Assess land development restrictions based on regulated risk exposure perimeters.
• Track the evolution of flood hazard studies based on the scope of study envelope.
• Verify compliance with planning regulations using the prescribed scope from the official order.
• Model flood risk zones for the Charente river overflow based on the approved regulatory perimeters.

Strengths

• Boundaries are linked to official legal acts with specified effective dates.
• Data is provided by a national geological research organization (BRGM).
• Distinguishes between three distinct regulatory and study phases of risk planning.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Last updated 2021-09-17 00:00:00; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

Freshness

2021-09-17

Geography

Commune of Chaniers, Charente-Maritime, France