PPRL Presqu’île Guérandaise — Saint-Nazaire: Reference ratings for the Xynthia event + 60 cm (event due 2100), in Loire-Atlantique

The data in this layer correspond to the reference ratings reached by water, in m NGF/IGN 69, by sector, for the event at maturity 2100 (Xynthia + 60 cm). This rating should be considered for the enforcement of the regulations of the Coastal Risk Prevention Plan (LPP). These data form an annex to the regulations of the PPRL Presqu'Île Guérandaise — Saint-Nazaire en Loire-Atlantique. __Origine__ These data are derived from hydraulic modelling that calculates water height at any point in the territory for a submersion corresponding to marine levels for the 100-year event (Xynthia + 60 cm). __ Partner Organisations__ DDTM Loire-Atlantique __Links annexes__ * [XML view of metadata](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-c2726c6e-2480-4ac9-ba30-5a2cc31e3380) * [the PPRL of the Presqu’Île Guérandaise — Saint-Nazaire on the Portal of Services of the State of Loire-Atlantique](http://www.loire-atlantique.gouv.fr/Politiques-publiques/Risques-naturels-et-technologiques/Prevention-des-risques-naturels/Plans-Prevention-Risques-Naturels-Previsibles/Les-Plans-de-Prevention-des-Risques-Littoraux-en-Loire-Atlantique/Le-PPRL-de-la-Presqu-ile-Guerandaise-Saint-Nazaire) [See this sheet on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/0738b330de8cf379d1e8a106afd3cac5141fd907)