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- BD TOPO® – SURFACE_EAU_BZH_2016 – Edition avril 2016 (source IGN)
- BD TOPO® – TRONCON_COURS_EAU_BZH_2016 – Edition avril 2016 (source IGN)

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                           <gmd:phone>
                              <gmd:CI_Telephone>
                                 <gmd:voice gco:nilReason="missing">
                                    <gco:CharacterString/>
                                 </gmd:voice>
                                 <gmd:facsimile gco:nilReason="missing">
                                    <gco:CharacterString/>
                                 </gmd:facsimile>
                              </gmd:CI_Telephone>
                           </gmd:phone>
                           <gmd:address>
                              <gmd:CI_Address>
                                 <gmd:deliveryPoint>
                                    <gco:CharacterString>65 rue de Saint Brieuc - CS 84215</gco:CharacterString>
                                 </gmd:deliveryPoint>
                                 <gmd:city>
                                    <gco:CharacterString>Rennes</gco:CharacterString>
                                 </gmd:city>
                                 <gmd:administrativeArea>
                                    <gco:CharacterString>cedex</gco:CharacterString>
                                 </gmd:administrativeArea>
                                 <gmd:postalCode>
                                    <gco:CharacterString>35042</gco:CharacterString>
                                 </gmd:postalCode>
                                 <gmd:country>
                                    <gco:CharacterString>France</gco:CharacterString>
                                 </gmd:country>
                                 <gmd:electronicMailAddress>
                                    <gco:CharacterString>geosas_adm@framalistes.org</gco:CharacterString>
                                 </gmd:electronicMailAddress>
                              </gmd:CI_Address>
                           </gmd:address>
                        </gmd:CI_Contact>
                     </gmd:contactInfo>
                     <gmd:role>
                        <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_RoleCode"
                                         codeListValue="distributor"/>
                     </gmd:role>
                  </gmd:CI_ResponsibleParty>
               </gmd:distributorContact>
            </gmd:MD_Distributor>
         </gmd:distributor>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://geosas.fr/geoserver/epandage/ows?service=WMS&amp;request=GetCapabilities</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>OGC:WMS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name>
                        <gco:CharacterString>zonage_pente_bretagne</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>Visualiser le zonage des pentes à 100m des cours d'eau et des surfaces en eau en Bretagne, réalisée par Agrocampus Ouest - Rennes.</gco:CharacterString>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://geosas.fr/geoserver/epandage/ows?service=WFS&amp;Version=2.0.0&amp;request=GetFeature&amp;typeName=zonage_pente_bretagne&amp;outputFormat=SHAPE-ZIP</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>WWW:DOWNLOAD-1.0-http--download</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name>
                        <gmx:MimeFileType xmlns:gmx="http://www.isotc211.org/2005/gmx" type=""/>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>Ficher vecteur au format ESRI-ShapeFile</gco:CharacterString>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://geowww.agrocampus-ouest.fr/sviewer/?lb=2&amp;wmc=http://geowww.agrocampus-ouest.fr/wmc/zonage_pente_bretagne.wmc</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name>
                        <gco:CharacterString>Carte dynamique</gco:CharacterString>
                     </gmd:name>
                     <gmd:description gco:nilReason="missing">
                        <gco:CharacterString/>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
      </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
      <gmd:DQ_DataQuality>
         <gmd:scope>
            <gmd:DQ_Scope>
               <gmd:level>
                  <gmd:MD_ScopeCode codeListValue="dataset"
                                    codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#MD_ScopeCode"/>
               </gmd:level>
            </gmd:DQ_Scope>
         </gmd:scope>
         <gmd:lineage>
            <gmd:LI_Lineage>
               <gmd:statement>
                  <gco:CharacterString>La couche est générée dynamiquement à partir d'une série de traitements géomatiques. Cette chaîne de traitement est implémentée dans un service OGC de calcul (WPS).
Les couches utilisées en entrée du traitement s’étendent sur la région de Bretagne et sont les suivantes:

- BD ALTI® V2 – Edition février 2014 (source IGN)
- BD TOPO® – SURFACE_EAU_BZH_2016 – Edition avril 2016 (source IGN)
- BD TOPO® – TRONCON_COURS_EAU_BZH_2016 – Edition avril 2016 (source IGN)
Les principaux algorithmes utilisés pour générer cette couche sont les algorithmes du logiciel GRASS-GIS 7.1.svn.
L'ordre et le temps de chaque traitement sont décrits dans le tableau ci-dessous.

Etapes du traitement / Temps (hh:mm:ss):
- Import des deux couches vecteur (BD TOPO) sur GRASS: 0:01:48
- Buffer de 100m des deux vecteur: 0:36:12
- Union des deux couches: 2:05:38
- Dissolve de la couche "union": 1:00:24
- Import du la couche raster MNT (BD ALTI): 0:00:03
- Rééchantillonage du raster "MNT" à 5m (méthode: bcubic): 0:08:40
- Rasterisation du vecteur "union" afin de l'utiliser comme masque: 0:03:42
- Calcul des pentes sur le MNT à 5m masqué: 0:09:57
- Classification en 3 classes* du raster "pentes": 0:00:00,542
- Vectorisation du raster "classification": 0:42:50
- Néttoyage/suppression des zones de moins de 1ha de ce vecteur: 0:11:32
- Simplification à 6m (méthode; réduction): 0:44:50
Temps total de traitement: 5:49:02

*Les 3 classes sont des seuils de pentes en pourcentage:
 1 : de 7 à 9.99%
 2 : de 10 à 14.99%
 3 : plus de 15%</gco:CharacterString>
               </gmd:statement>
            </gmd:LI_Lineage>
         </gmd:lineage>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>