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                     <gmd:westBoundLongitude>
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                        <gco:Decimal>10.25</gco:Decimal>
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                     <gmd:southBoundLatitude>
                        <gco:Decimal>40.087</gco:Decimal>
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                        <gco:Decimal>51.56</gco:Decimal>
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         <gmd:supplementalInformation>
            <gco:CharacterString>Maître d'ouvrage :
SHOM
Maître d'œuvre :
SHOM
Financeur(s) :
SHOM</gco:CharacterString>
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      <gmd:MD_Distribution>
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         <gmd:report>
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               <gmd:dateTime/>
               <gmd:result>
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                        <gmd:CI_Citation>
                           <gmd:title>
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                           <gmd:date>
                              <gmd:CI_Date>
                                 <gmd:date>
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            </gmd:DQ_AbsoluteExternalPositionalAccuracy>
         </gmd:report>
         <gmd:lineage>
            <gmd:LI_Lineage>
               <gmd:statement>
                  <gco:CharacterString>1988 : Initiation de la BDSS de données ponctuelles
1994 : Remplacement de la BDSS 2ème génération
2001 : Intégration des données surfaciques

Nombre de points d'observation ou de mesure : 
Pour la DBSS1D
Plomb suiffé : 774 638
Bennes 13 431
Points epaisseur par sismique 6451
Carottes 135
Roches 463
Pour la BDSS2D
Cartes de nature de fond 176
Cartes de structures sédimentaires (mosaiques d"imagerie interprétées) 128
Cartes de CaCO3 24
Cartes d'isopaques 15
Cartes de faciès acoustiques 2

Méthodes de collecte : 
http://www.shom.fr/les-activites/activites-scientifiques/sedimentologie/prelevements-et-analyses/
http://www.shom.fr/les-activites/activites-scientifiques/sedimentologie/imagerie-acoustique/</gco:CharacterString>
               </gmd:statement>
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                        <gco:CharacterString>Type de données  :Hydrographie	
Géologie	
Précision sur le type de donnée : 
Bathymétrie
Sédimentologie par prélèvements
Sédimentologie surfacique 

Paramètre(s) observé(s) ou mesuré(s) : 
Profondeur d’eau
- Description visuelle
- Granulométrie
- Teneur en CaCO3
- Densité
- Composition des sédiments (% vase)
- Couleur des sédiments
Epaisseur des sédiments
- Figures sédimentaires
- Echofaciès (sondeur de sédiments)
- Faciès acoustique



Résolution du (ou des) paramètre(s) : 
Variable selon l’époque et le système d’acquisition mis en œuvre
Variable selon l’époque et le système d’acquisition mis en œuvre


Fréquence d'actualisation : Continue, informations datées et référencées
Fréquence d'observation :  Variable selon les caractéristiques des zones géographiques</gco:CharacterString>
                     </gmd:description>
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               <gmd:processStep>
                  <gmd:LI_ProcessStep>
                     <gmd:description>
                        <gco:CharacterString>Plan(s) d'échantillonnage : 
Spatial</gco:CharacterString>
                     </gmd:description>
                  </gmd:LI_ProcessStep>
               </gmd:processStep>
            </gmd:LI_Lineage>
         </gmd:lineage>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>