The Bureau de Recherches Géologiques et Minières provides a dataset representing areas exposed to flooding hazards used for risk analysis in the Plan de Prévention des Risques (PPR) in the Orne department. Hazard zones are delineated based on a study assessing the probability and intensity of dangerous phenomena, with data validity dated September 2, 2021. The dataset likely contains graduated zoning codes for multi-hazard areas and includes areas protected by structures considered subject to hazard.
Use Cases
- Risk assessment modeling based on hazard intensity and probability gradations described in the hazard study.
- Land-use planning and regulatory zoning based on the delineated hazard areas and prescribing zones.
- Comparative analysis of hazard exposure for areas protected by structures versus unprotected zones.
- Validation of flood hazard models using the synthesized hazard data from multiple sources.
Strengths
- Hazard zones are based on a formal study assessing probability and intensity, providing a methodological foundation.
- Includes areas protected by structures, accounting for potential breakage or inadequacy.
- Data validity is explicitly stated as September 2, 2021.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Bureau de Recherches Géologiques et Minières
- Collection Method
- Synthesis using multiple sources of calculated, modelled, or observed hazard data from a hazard study.
- Freshness
- Last updated 2021-09-03 00:00:00; freshness should be verified.
- Geography
- Department of Orne, France