PPRL Guérandaise Presqu’île — Saint-Nazaire: Reference odds for Xynthia + 20 cm (reference event), in Loire-Atlantique

The data for this layer correspond to the reference odds reached by l'water, in m NGF/IGN 69, by sector, for the reference event (Xynthia + 20 cm). This rating should be considered for the application of the regulatory provisions of the Coastal Risk Prevention Plan (LRP). These data form an annex to the regulations of PPRL Presqu' Guérandaise — Saint-Nazaire Island in Loire-Atlantique. __Origin__ These data are derived from hydraulic modelling, which allows to calculate the height of water at any point in the territory for a submersion corresponding to the marine levels of l' reference event (Xynthia + 20 cm). __Partner organisations__ DDTM Loire-Atlantique __Links annexes__ * [HTML view of metadata on the Internet](http://catalogue.geo-ide.developpement-durable.gouv.fr/catalogue/srv/fre/catalog.search#/metadata/fr-120066022-jdd-316c01ec-25c4-461f-a22b-2b076fd4bc23) * [XML metadata view](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-316c01ec-25c4-461f-a22b-2b076fd4bc23) * [the PPRL of the Guérandaise Presqu’île — Saint-Nazaire on the Portal of Services of l’' State in 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) * [basic URL of wms/wfs services on the Internet](http://ogc.geo-ide.developpement-durable.gouv.fr/wxs?map=/opt/data/carto/geoide-catalogue/1.4/org_38030/b9c7556d-d73a-45a2-b951-bb1a7c8da10f.internet.map) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/5aa2217a2bd899d552e135319aa9f8fe6380cdfe)