Map visualisation service (WMS) of the dataset: Assembling the hazard zones of PPRNs (flooding or field movements) in Charente.

Assembling surface objects in areas exposed to the hazards of PPRNs and used for risk analysis of plans to prevent natural hazards (floods or field movements) in Charente. The hazard study evaluates the intensity of each hazard at any point in the study area and leads to the delimitation of a graduated zoning on the study perimeter according to the level of the hazard. The assignment of a hazard level at a given point in the territory takes into account the probability of occurrence of the dangerous phenomenon and its degree of intensity. For multi-random PPRNs, each zone is usually identified on the hazard map by a code for each hazard to which it is exposed. Hazard zones can be described as elaborated data to the extent that they result from a synthesis using several calculated, modelled or observed hazard data sources.