PPRN Risk Zones for La Rochelle Municipality, Erosion and Submersion Hazards

La Rochelle municipality's plan for the prevention of natural hazards (PPRN), approved in October 2019. The dataset contains geospatial layers defining the scope of exposure and restricted areas for erosion and submersion risks. It was published by the Bureau de Recherches Géologiques et Minières (BRGM) and last updated in September 2021.

Use Cases

• Map areas exposed to coastal erosion and submersion based on the defined risk scope.
• Identify land-use restrictions for development within the PPRN restricted zones.
• Analyze municipal-level hazard planning for the Île d'Aix and La Rochelle area.
• Support regulatory compliance and zoning decisions using the approved plan layers.

Strengths

• Data is based on an officially approved plan (prefectural decree of 04/10/19).
• Provides specific geospatial layers for risk scope and restricted areas.
• Originates from a recognized geological and mining research organization (BRGM).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2021-09-17 00:00:00; freshness should be verified.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES (BRGM)

Collection Method

Likely created as part of regulatory hazard planning and mapping.

Time Range

Plan approved October 2019.

Freshness

Last updated 2021-09 17 00:00:00; static regulatory document.

Geography

Municipality of La Rochelle (Île d'Aix), Charente-Maritime, France.