The reference ratings correspond to the water heights retained in a hypothesis of
centennial type flood. These ratings are specified on the IGN 69 zoning plan.
Between two reference ratings, the applicable rating will be calculated by interpolation between the two known odds.
__Origin__
The GIS layers are produced by the office of SERN/DDTM85, the entry repository is the PCI
__Partner organisations__
DDTM Vendée
__Links annexes__
* [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-dbd6749a-053b-4277-948d-cc8fb498786a)
* [complete approved file](http://www.vendee.gouv.fr/approbation-du-pprl-pays-talmondais-du-30-mars-a2337.html)
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/b3f46e3b954f6b3d5efdd0b9acff01776f322036)
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