Boundary data for different development stages of a Natural Risk Prevention Plan (PPRN) concerning flooding by overflow of the Boutonne river sector in the commune of St-Jean-d’Angély, France. The dataset includes prescribed, approved, and study perimeters, each with legal significance tied to official acts and effective dates. The data is provided by the Bureau de Recherches Géologiques et Minières and was last updated in September 2021.
Use Cases
- Assessing regulatory land-use restrictions based on approved flood risk exposure perimeters.
- Tracking the evolution of flood hazard studies based on the defined study envelope.
- Analyzing the legal and administrative timeline of a risk prevention plan based on prescribed and effective perimeters.
Strengths
- Data is tied to official legal acts and effective dates, providing a formal basis for regulation.
- Distinguishes between three key planning stages: prescribed, approved, and study perimeters.
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
- Last updated 2021-09-17.
- Geography
- Commune of St-Jean-d’Angély, Charente-Maritime, France