Hazard Areas of the Natural Risk Prevention Plan for Tethieu, Landes

Hazard zones are defined by a graduated zoning system based on the probability and intensity of dangerous phenomena. The dataset, produced by the Bureau de Recherches Géologiques et Minières and last updated in September 2021, represents areas exposed to one or more hazards for the commune of Tethieu in the Landes department of France. It includes areas protected by structures, which are considered subject to hazard, while zones of no or insignificant hazard are excluded from this representation.

Use Cases

• Modeling flood or erosion risk for land development based on the graduated hazard zoning.
• Assessing the adequacy of protective structures for communities based on their inclusion as hazard zones.
• Informing regulatory zoning and building prescriptions based on the synthesized hazard data.
• Conducting regional comparative risk analysis based on hazard intensity and probability mapping.

Strengths

• Data is based on a formal hazard study evaluating intensity and probability for specific hazard types.
• Includes areas behind protective structures, acknowledging their potential failure, as mandated for PPRNs.
• Represents a synthesis of multiple calculated, modeled, or observed hazard data sources.

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 extent are unknown, which may limit suitability assessment.

Provenance

Source

BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

Collection Method

Synthesis of multiple hazard data sources, likely involving calculation, modeling, and observation specific to each hazard type.

Freshness

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

Geography

Tethieu commune, Landes department (40), France.