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Cette couche a permis de créer le modèle d'évolution urbaine des villes ligériennes présenté dans l'article scientifique suivant :

Andrieu D et Nowik L « La dynamique du peuplement dans le Centre-Ouest de la France : quel rôle joue encore la Loire ? ». Espace populations sociétés, nᵒ 2011/3 (31 décembre 2011): 603‑16.

http://0-eps.revues.org.sso.scd.univ-tours.fr/4735</gco:CharacterString>
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         </gmd:characterSet>
         <gmd:topicCategory>
            <gmd:MD_TopicCategoryCode>society</gmd:MD_TopicCategoryCode>
         </gmd:topicCategory>
         <gmd:topicCategory>
            <gmd:MD_TopicCategoryCode>planningCadastre</gmd:MD_TopicCategoryCode>
         </gmd:topicCategory>
         <gmd:extent>
            <gmd:EX_Extent>
               <gmd:description>
                  <gco:CharacterString>Val de Loire</gco:CharacterString>
               </gmd:description>
               <gmd:geographicElement>
                  <gmd:EX_GeographicBoundingBox>
                     <gmd:westBoundLongitude>
                        <gco:Decimal>-1.46</gco:Decimal>
                     </gmd:westBoundLongitude>
                     <gmd:eastBoundLongitude>
                        <gco:Decimal>3.238</gco:Decimal>
                     </gmd:eastBoundLongitude>
                     <gmd:southBoundLatitude>
                        <gco:Decimal>46.851</gco:Decimal>
                     </gmd:southBoundLatitude>
                     <gmd:northBoundLatitude>
                        <gco:Decimal>47.968</gco:Decimal>
                     </gmd:northBoundLatitude>
                  </gmd:EX_GeographicBoundingBox>
               </gmd:geographicElement>
            </gmd:EX_Extent>
         </gmd:extent>
      </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:distributionInfo xmlns:srv="http://www.isotc211.org/2005/srv"
                         xmlns:date="http://exslt.org/dates-and-times">
      <gmd:MD_Distribution>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>ESRI Shapefile</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>1</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://catalogue.doterr.fr/geonetwork/srv/en/resources.get?id=5476&amp;fname=Val_de_Loire_Evol_Urba_1946_2005.zip&amp;access=private</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>WWW:DOWNLOAD-1.0-http--download</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name>
                        <gmx:MimeFileType type="application/x-compressed">Val_de_Loire_Evol_Urba_1946_2005.zip</gmx:MimeFileType>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString/>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://catalogue.doterr.fr/geosource/panierDownloadFrontalParametrage?LAYERIDTS=5476</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>WWW:DOWNLOAD-1.0-http--download</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name>
                        <gco:CharacterString>Accès au téléchargement des données</gco:CharacterString>
                     </gmd:name>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://catalogue.doterr.fr/geosource/consultationWMS?IDT=5476</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name>
                        <gco:CharacterString>Accès à la visualisation des données</gco:CharacterString>
                     </gmd:name>
                     <gmd:applicationProfile>
                        <gco:CharacterString>MAP</gco:CharacterString>
                     </gmd:applicationProfile>
                  </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"/>
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            </gmd:DQ_Scope>
         </gmd:scope>
         <gmd:report>
            <gmd:DQ_DomainConsistency>
               <gmd:result>
                  <gmd:DQ_ConformanceResult>
                     <gmd:specification>
                        <gmd:CI_Citation>
                           <gmd:title>
                              <gco:CharacterString>-- Titre d'une spécification à laquelle la série de données est conforme ou non --</gco:CharacterString>
                           </gmd:title>
                           <gmd:date>
                              <gmd:CI_Date>
                                 <gmd:date>
                                    <gco:Date>2000-01-01</gco:Date>
                                 </gmd:date>
                                 <gmd:dateType>
                                    <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_DateTypeCode"
                                                         codeListValue="publication"/>
                                 </gmd:dateType>
                              </gmd:CI_Date>
                           </gmd:date>
                        </gmd:CI_Citation>
                     </gmd:specification>
                     <gmd:explanation>
                        <gco:CharacterString>-- Information sur l'évaluation de la conformité (non INSPIRE) --</gco:CharacterString>
                     </gmd:explanation>
                     <gmd:pass>
                        <gco:Boolean>1</gco:Boolean>
                     </gmd:pass>
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         </gmd:report>
         <gmd:lineage>
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                  <gco:CharacterString>La source définissant l'extension urbaine à 4 dates est composée de scans de cartes imprimées éditées en 1946 (unique série au 1/50 000 et photocopiées par l'IGN), en 1960 (feuilles aplats de la bibliothèque de Géographie de l'Université de Tours), de 1985 (séries vertes pliées) et 2005 (SCAN 100 de l'IGN)

Les polygones circonscrivant l'urbanisation sur les communes coupant la vallée de la Loire de Nervers aux portes de Nantes sont renseignés par un champs Date avec les occurrences suivantes :

- 0 : absence d'urbanisation

- 1946 : état de l'urbanisation interprétée sur les cartes au 1/50 000 de 1946

- 1960, 1985 et 2005 : extension de l'urbanisation constatée sur les cartes à la date indiquée.

Ainsi par exemple l'état de l'urbanisation en 1985 est le regroupement des polygones attribués des dates 1946, 1960 et 1985.

L'urbanisation a été unie avec le périmètre de la zone inondable et les limites communales permettant des agrégation à ces niveaux d'information.</gco:CharacterString>
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            </gmd:LI_Lineage>
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      </gmd:DQ_DataQuality>
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                        xmlns:skos="http://www.w3.org/2004/02/skos/core#">
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            <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:report>
            <gmd:DQ_DomainConsistency>
               <gmd:result>
                  <gmd:DQ_ConformanceResult>
                     <gmd:specification>
                        <gmd:CI_Citation>
                           <gmd:title>
                              <gco:CharacterString>INSPIRE Implementing rules</gco:CharacterString>
                           </gmd:title>
                           <gmd:date>
                              <gmd:CI_Date>
                                 <gmd:date>
                                    <gco:Date>2015-06-23</gco:Date>
                                 </gmd:date>
                                 <gmd:dateType>
                                    <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_DateTypeCode"
                                                         codeListValue="publication"/>
                                 </gmd:dateType>
                              </gmd:CI_Date>
                           </gmd:date>
                        </gmd:CI_Citation>
                     </gmd:specification>
                     <gmd:explanation>
                        <gco:CharacterString>See the referenced specification</gco:CharacterString>
                     </gmd:explanation>
                     <gmd:pass>
                        <gco:Boolean>0</gco:Boolean>
                     </gmd:pass>
                  </gmd:DQ_ConformanceResult>
               </gmd:result>
            </gmd:DQ_DomainConsistency>
         </gmd:report>
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  <gmd:dataQualityInfo xmlns:srv="http://www.isotc211.org/2005/srv"
                        xmlns:skos="http://www.w3.org/2004/02/skos/core#">
      <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:report>
            <gmd:DQ_DomainConsistency>
               <gmd:result>
                  <gmd:DQ_ConformanceResult>
                     <gmd:specification>
                        <gmd:CI_Citation>
                           <gmd:title>
                              <gco:CharacterString>COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services</gco:CharacterString>
                           </gmd:title>
                           <gmd:date>
                              <gmd:CI_Date>
                                 <gmd:date>
                                    <gco:Date>2010-10-23</gco:Date>
                                 </gmd:date>
                                 <gmd:dateType>
                                    <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_DateTypeCode"
                                                         codeListValue="publication"/>
                                 </gmd:dateType>
                              </gmd:CI_Date>
                           </gmd:date>
                        </gmd:CI_Citation>
                     </gmd:specification>
                     <gmd:explanation>
                        <gco:CharacterString>See the referenced specification</gco:CharacterString>
                     </gmd:explanation>
                     <gmd:pass>
                        <gco:Boolean>0</gco:Boolean>
                     </gmd:pass>
                  </gmd:DQ_ConformanceResult>
               </gmd:result>
            </gmd:DQ_DomainConsistency>
         </gmd:report>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>