Map visualisation service (WMS) of the dataset: PPRL Pays des Olonnes — Current reference rates for flood and marine submersion risks of the Pays des Olonnes — Vendée
Description
The reference rating corresponds to the altitude of the body of water modeled at the right of an existing project or construction.
It is displayed in m NGF-IGN 69, i.e. in meters in the official grading network in metropolitan France which is attached to the Marseille tide gauge.
The reference rating therefore does not correspond to a water height but rather to the altimetry of the water body.
The water height corresponds to the difference between the reference rating and the altimetry rating of the natural terrain.
Resources
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https://ogc.geo-ide.developpement-durable.gouv.fr/wxs?map=/opt/data/carto/geoide-catalogue/1.4/org_38110/b0696301-93ea-4ab1-a1fe-1415ed039e95.internet.map |