Flood Hazard Zones for the Charente River in Crazannes, France

A 2021 geospatial dataset from the French Geological Survey (BRGM) delineating areas exposed to flood hazards from the Charente River in the commune of Crazannes, Charente-Maritime. It represents hazard zones used for regulatory risk prevention plans (PPR), based on a synthesis of calculated, modeled, or observed hazard data. The dataset includes areas protected by structures, which are considered subject to hazard.

Use Cases

• Land-use planning and zoning based on flood hazard levels.
• Risk analysis for infrastructure projects using the hazard intensity and probability data.
• Visualizing flood exposure for community awareness and emergency preparedness.
• Integrating hazard zones with other geospatial data for multi-hazard risk assessment.

Strengths

• Produced by the authoritative French Geological Survey (BRGM).
• Based on a synthesis of multiple hazard data sources, as described.
• Includes areas behind protective structures, accounting for potential failure.

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 spatial scale are unknown, which may limit suitability assessment.

Provenance

Source

BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

Collection Method

Synthesis of multiple sources of calculated, modelled or observed hazard data for regulatory risk prevention plans (PPR).

Freshness

Last updated 2021-09-17 00:00:00

Geography

Commune of Crazannes, Charente-Maritime, France, focusing on the Charente River overflow hazard.