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    </gmd:address>                  <gmd:onlineResource>                    <gmd:CI_OnlineResource>                      <gmd:linkage>                        <gmd:URL>https://webgis.adbpo.it</gmd:URL>                      </gmd:linkage>                    </gmd:CI_OnlineResource>                  </gmd:onlineResource>                </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="pointOfContact">pointOfContact</gmd:CI_RoleCode>              </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://webgis.adbpo.it/catalogue/#/dataset/1840</gmd:URL>              </gmd:linkage>              <gmd:protocol>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceCategory/humanCatalogueViewer">Visualizzatore del catalogo [NON UFFICIALE]</gmx:Anchor>              </gmd:protocol>              <gmd:applicationProfile>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/other">Altri servizi</gmx:Anchor>              </gmd:applicationProfile>              <gmd:description>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>              </gmd:description>            </gmd:CI_OnlineResource>          </gmd:onLine>          <gmd:onLine>            <gmd:CI_OnlineResource>              <gmd:linkage>                <gmd:URL>https://webgis.adbpo.it/geoserver/ows</gmd:URL>              </gmd:linkage>              <gmd:protocol>                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">OGC Web Map Service</gmx:Anchor>              </gmd:protocol>              <gmd:applicationProfile>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>              </gmd:applicationProfile>              <gmd:name>                <gco:CharacterString>geonode:DTM_Po_2003-2004_adbpo</gco:CharacterString>              </gmd:name>              <gmd:description>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>              </gmd:description>            </gmd:CI_OnlineResource>          </gmd:onLine>          <gmd:onLine>            <gmd:CI_OnlineResource>              <gmd:linkage>                <gmd:URL>https://webgis.adbpo.it/geoserver/ows</gmd:URL>              </gmd:linkage>              <gmd:protocol>                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wcs">OGC Web Coverage Service</gmx:Anchor>              </gmd:protocol>              <gmd:applicationProfile>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/download">Servizio di scaricamento</gmx:Anchor>              </gmd:applicationProfile>              <gmd:name>                <gco:CharacterString>geonode:DTM_Po_2003-2004_adbpo</gco:CharacterString>              </gmd:name>              <gmd:description>                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>              </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 codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>          </gmd:level>        </gmd:DQ_Scope>      </gmd:scope>      <gmd:report>        <gmd:DQ_AbsoluteExternalPositionalAccuracy>          <gmd:result>            <gmd:DQ_QuantitativeResult>              <gmd:valueUnit>                <gml:BaseUnit gml:id="UD1">                  <gml:identifier codeSpace="http://www.bipm.org/en/si/base_units">m</gml:identifier>                  <gml:unitsSystem xlink:href="http://www.bipm.org/en/si"/>                </gml:BaseUnit>              </gmd:valueUnit>              <gmd:value>                <gco:Record>                  <gco:Real>0.75</gco:Real>                </gco:Record>              </gmd:value>            </gmd:DQ_QuantitativeResult>          </gmd:result>        </gmd:DQ_AbsoluteExternalPositionalAccuracy>      </gmd:report>      <gmd:report>        <gmd:DQ_DomainConsistency>          <gmd:result>            <gmd:DQ_ConformanceResult>              <gmd:specification>                <gmd:CI_Citation>                  <gmd:title>                    <gco:CharacterString>REGOLAMENTO (UE) N. 1089/2010 DELLA COMMISSIONE del 23 novembre 2010 recante attuazione della direttiva 2007/2/CE del Parlamento europeo e del Consiglio per quanto riguarda l'interoperabilità dei set di dati territoriali e dei servizi di dati territoriali</gco:CharacterString>                  </gmd:title>                  <gmd:date>                    <gmd:CI_Date>                      <gmd:date>                        <gco:Date>2010-12-08</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">publication</gmd:CI_DateTypeCode>                      </gmd:dateType>                    </gmd:CI_Date>                  </gmd:date>                </gmd:CI_Citation>              </gmd:specification>              <gmd:explanation>                <gco:CharacterString>non valutato</gco:CharacterString>              </gmd:explanation>              <gmd:pass><gco:Boolean>true</gco:Boolean></gmd:pass>            </gmd:DQ_ConformanceResult>          </gmd:result>        </gmd:DQ_DomainConsistency>      </gmd:report>      <gmd:lineage>        <gmd:LI_Lineage>          <gmd:statement>            <gco:CharacterString>L’azienda esecutrice ha effettuato il rilievo tra il 08/12/2003 e il 25/03/2004 tramite piattaforma aerea che ha volato alla quota di 1500 metri. ed ha eseguito strisciate tra loro parallele con un interasse di circa 700 metri. È stato utilizzato un angolo di scansione di 40 gradi per cui la fascia di sovrapposizione dei dati è larga mediamente 200-240 metri. La distanza media tra i punti sul terreno è di 1,6 metri. I dati grezzi così ottenuti, sono caricati nel software TERRASCAN di proprietà TERRASOLID e divisi in tavolette di 2 km x 2 km. I dati grezzi sono espressi nel sistema UTM WGS84 fuso 32 e quota ellissoidica. Per produrre l’elaborato DTM, a seguito dell’eliminazione della vegetazione e degli edifici, si utilizzano tutti i punti classificati come terreno, strutture sovramontanti e strutture sottomontanti. La consegna è una maglia di punti regolare di 2 metri per 2 metri che descrive il terreno nudo. Alla fine della registrazione del DTM si procede alla trasformazione delle quote ellissoidiche a geoidiche e dal sistema UTM WGS84 fuso 32. A questo scopo è stato utilizzato il programma ConVerto, che utilizza le griglie dell’IGM dell’epoca (ITALGEO099) e un file (Po.par) con i 7 parametri di rototraslazione determinati con i 37 punti IGM95 di cui erano note sia le quote ellissoidiche sia le quote ortometriche; pertanto, si è utilizzato un geoide locale. Il modello risultante dall’acquisizione è costituito da celle quadrate della dimensione di 2 metri per lato e, conformemente alle specifiche, presenta un’accuratezza altimetrica corrispondente a +/- 20 cm, mentre l’accuratezza planimetrica è di +/- 75 cm. La ditta esecutrice ha consegnato 263 files rappresentanti il modello in formato *.asc. Tutti i file sono prodotti nel sistema di riferimento identificato dal codice EPSG 32632. Le tavolette sono state mosaicate, dall’Autorità di bacino distrettuale del fiume Po, in un unico file in formato *.tiff (geotiff) imponendo come sistema di riferimento lo stesso di origine (EPSG:32632) ed assegnando come valore “no data” il valore -9999. Il file raster risultante è stato ottimizzato attraverso compressione (deflate), tiling (blocchi di 512x512) e creazione delle overview interne (resample nearest neighbour).</gco:CharacterString>          </gmd:statement>        </gmd:LI_Lineage>      </gmd:lineage>    </gmd:DQ_DataQuality>  </gmd:dataQualityInfo>
</gmd:MD_Metadata>