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Le fichier obstacles.zip contient les couches géographiques (vecteur) suivantes : 
- CER_OBSTACLES_P_44.shp : obstacles à l'écoulement des eaux en cours d'eau, issus du référentiel ROE de l'OFB ;
- CER_OBSTACLES_S_44.shp : hiérarchisation des points de conflits entre les continuités écologiques et les infrastructures linéaires de transport (réseau routier et ferré).

Le répertoire temp_obstacles_qml.zip contient les fichiers de styles (format QML - QGis) :
- CER_OBSTACLES_S_44_style.qml : couche de style associée à la couche CER_OBSTACLES_S_44.shp.

Le dossier note_methodo.zip contient une note méthodologique sur la manière dont les données ont été constituées ainsi que la description des champs de chacune des données.</gco:CharacterString>
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                            <gmd:protocol>
                                <gco:CharacterString>WWW:DOWNLOAD-1.0-http--download</gco:CharacterString>
                            </gmd:protocol>
                        </gmd:CI_OnlineResource>
                    </gmd:onLine>
                    <gmd:onLine>
                        <gmd:CI_OnlineResource>
                            <gmd:linkage>
                                <gmd:URL>https://ftp.datagrandest.fr/opendata/tvb-grand-est/obstacle_gpkg.7z</gmd:URL>
                            </gmd:linkage>
                            <gmd:description>
                                <gco:CharacterString>Données vecteur GeoPackage des obstacles de la nouvelle Trame Verte et Bleue</gco:CharacterString>
                            </gmd:description>
                            <gmd:name>
                                <gco:CharacterString>Données vecteur GeoPackage des obstacles de la nouvelle Trame Verte et Bleue</gco:CharacterString>
                            </gmd:name>
                            <gmd:protocol>
                                <gco:CharacterString>WWW:DOWNLOAD-1.0-http--download</gco:CharacterString>
                            </gmd:protocol>
                        </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/gmxCodelists.xml#MD_ScopeCode">dataset</gmd: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>CNIG</gco:CharacterString>
                                    </gmd:title>
                                    <gmd:date>
                                        <gmd:CI_Date>
                                            <gmd:dateType>
                                                <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/ML_gmxCodelists.xml#CI_DateTypeCode"/>
                                            </gmd:dateType>
                                        </gmd:CI_Date>
                                    </gmd:date>
                                </gmd:CI_Citation>
                            </gmd:specification>
                        </gmd:DQ_ConformanceResult>
                    </gmd:result>
                </gmd:DQ_DomainConsistency>
            </gmd:report>
            <gmd:lineage>
                <gmd:LI_Lineage>
                    <gmd:statement>
                        <gco:CharacterString>Les obstacles liés aux ILT ont été hiérarchisés sur la base d'un système de notation prenant en compte différents critères : 
- nature et importance des infrastructures ;
- présence d'ouvrages d'art permettant la traversée de l'ILT (sur la base de la bibliographie et de complément de photo-interprétation ; aucune vérification de terrain n'a été effectuée). 
- nombre de guildes d'espèces concernées par le tronçon;
- présence d'un réservoir de biodiversité ;
- présence d'un écopont, tunnel ou viaduc dans un rayon de 250m. 

Les obstacles à la sous-trame aquatique se basent sur le Référentiel des Obstacles à l’Écoulement (ROE), donnée produite par l’OFB. Il s’agit des ouvrages liés à l’eau qui sont à l’origine d’une modification de l’écoulement des eaux de surface, dans les lits mineurs et majeurs des cours d’eau.</gco:CharacterString>
                    </gmd:statement>
                </gmd:LI_Lineage>
            </gmd:lineage>
        </gmd:DQ_DataQuality>
    </gmd:dataQualityInfo>
</gmd:MD_Metadata>