The Hazard zone of a PPRN dataset from the Bureau de Recherches Géologiques et Minières delineates areas exposed to natural hazards for risk analysis. It represents graduated zoning based on hazard intensity and probability, synthesized from multiple calculated, modelled, or observed hazard data sources. The dataset was updated in June 2018 and covers municipalities regulated by Risk Prevention Plans (PPR) for terrain movements in Agenais and Confluents.
Use Cases
- Modeling flood or landslide risk exposure based on hazard intensity zoning.
- Assessing land suitability for development based on hazard probability and intensity.
- Integrating hazard zones into regional Risk Prevention Plans (PPR) for regulatory compliance.
- Analyzing the effectiveness of protective structures represented within hazard zones.
Strengths
- Hazard zones are defined using a graduated zoning method specific to each hazard type.
- The dataset includes areas protected by structures, considering scenarios of breakage or inadequacy.
- The hazard map is a synthesis from multiple sources of calculated, modelled, or observed hazard data.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Last updated 2021-06-10; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
Provenance
- Source
- Bureau de Recherches Géologiques et Minières
- Collection Method
- Synthesis from multiple sources of calculated, modelled, or observed hazard data.
- Freshness
- Last updated 2021-06-10 00:00:00
- Geography
- Municipalities regulated by a PPR for terrain movements in Agenais and Confluents.