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Ce MNT a été réalisé à partir d'un fichier grille (4x4m) regroupant des données Lidar et bathymétrie. Les données Lidar ont été acquises le 13 février 2013 par Aerodata. Les données bathymétriques ont été acquises du 25 février au 05 avril 2013 par Geoxyz. Les données ont été transmises par le PNR du Marais Poitevin. 
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L’emprise couvre toute l'Anse de l'Aiguillon.
Le système de coordonnées et de projection est RGF Lambert 93 (ESPG : 2154). 
La précision des données est estimée par le prestataire :
x et y : 25 cm.
z : 10 cm.</gco:CharacterString>
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                        <gco:Integer>1000</gco:Integer>
                     </gmd:denominator>
                  </gmd:MD_RepresentativeFraction>
               </gmd:equivalentScale>
            </gmd:MD_Resolution>
         </gmd:spatialResolution>
         <gmd:spatialResolution>
            <gmd:MD_Resolution>
               <gmd:distance>
                  <gco:Distance uom=""/>
               </gmd:distance>
            </gmd:MD_Resolution>
         </gmd:spatialResolution>
         <gmd:spatialResolution>
            <gmd:MD_Resolution>
               <gmd:distance>
                  <gco:Distance uom=""/>
               </gmd:distance>
            </gmd:MD_Resolution>
         </gmd:spatialResolution>
         <gmd:language>
            <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/" codeListValue="fre"/>
         </gmd:language>
         <gmd:characterSet>
            <gmd:MD_CharacterSetCode codeList="http://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_CharacterSetCode"
                                     codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>
         </gmd:characterSet>
         <gmd:topicCategory>
            <gmd:MD_TopicCategoryCode>elevation</gmd:MD_TopicCategoryCode>
         </gmd:topicCategory>
         <gmd:extent>
            <gmd:EX_Extent>
               <gmd:geographicElement>
                  <gmd:EX_GeographicBoundingBox>
                     <gmd:westBoundLongitude>
                        <gco:Decimal>-1.2134206295013426</gco:Decimal>
                     </gmd:westBoundLongitude>
                     <gmd:eastBoundLongitude>
                        <gco:Decimal>-1.1111104488372803</gco:Decimal>
                     </gmd:eastBoundLongitude>
                     <gmd:southBoundLatitude>
                        <gco:Decimal>46.23400287862253</gco:Decimal>
                     </gmd:southBoundLatitude>
                     <gmd:northBoundLatitude>
                        <gco:Decimal>46.32464579703594</gco:Decimal>
                     </gmd:northBoundLatitude>
                  </gmd:EX_GeographicBoundingBox>
               </gmd:geographicElement>
               <gmd:temporalElement>
                  <gmd:EX_TemporalExtent>
                     <gmd:extent>
                        <gml:TimePeriod gml:id="d9997172e370a1051934">
                           <gml:beginPosition>2010-07-15T01:00:00</gml:beginPosition>
                           <gml:endPosition indeterminatePosition="before">2010-07-18T01:00:00</gml:endPosition>
                        </gml:TimePeriod>
                     </gmd:extent>
                  </gmd:EX_TemporalExtent>
               </gmd:temporalElement>
            </gmd:EX_Extent>
         </gmd:extent>
      </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:distributionInfo>
      <gmd:MD_Distribution>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>TIFF</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>1</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
      </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/iso/19115/resources/Codelists/cat/codelists.xml#MD_ScopeCode"
                                    codeListValue="series"/>
               </gmd:level>
            </gmd:DQ_Scope>
         </gmd:scope>
         <gmd:lineage>
            <gmd:LI_Lineage>
               <gmd:statement>
                  <gco:CharacterString>MNT créé à partir de données Lidar à l'UMR 7266 LIENSs par Jonathan Blanloeil au cours d'un stage de M2 (2017). 

Provenance des données :
- PNR du Marais Poitevin ( Prestataires : Aerodata (Lidar) et Geoxyz (Bathy)).

Précision des données en entré : 
- x et y : 25 cm.
- z : 10 cm.

Altitude est en m NGF ( zéro hydro = -3.503 m NGF ).

A noter : Ce MNT a été généré en vu de le comparer à celui de 2010 et celui de 2016 pour quantifier les évolutions sédimentaires sur ces deux périodes.</gco:CharacterString>
               </gmd:statement>
            </gmd:LI_Lineage>
         </gmd:lineage>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>