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            <gco:CharacterString>The Annual Minimum Snow and Ice (MSI) Extent of the Atlas of Canada National Scale Data, are data sets compiled containing annual data from 2000 to present.  The data sets were derived from research published by the Canada Centre for Remote Sensing which classified satellite imagery over Canada and neighbouring regions for the continued presence or absence of snow and ice from April 1 to September 20 each year.  The Atlas of Canada MSI products consist of a vector dataset and a raster time-series animation application.

VECTOR DATASET
The vector dataset has been generalized to display at the scale of 1:1,000,000.

TIME-SERIES ANIMATION APPLICATION
The time-series animation application has not been generalized from its original scale (250 m pixels).

The application is disseminated through the Data Cube Platform, implemented by the Canada Centre for Mapping and Earth Observation, Natural Resources Canada using geospatial big data management techniques.  These technologies enable the rapid and efficient visualization of high-resolution geospatial data and allow for the rapid generation of dynamically derived products.  The time-series is also available as a Web Map Service (WMS) and Web Coverage Service (WCS).

CREDIT
Source data provided by Alexander P. Trishchenko, Canada Centre for Remote Sensing, Natural Resources Canada 
Metadata record: https://open.canada.ca/data/en/dataset/808b84a1-6356-4103-a8e9-db46d5c20fcf</gco:CharacterString>
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                  <gmd:LocalisedCharacterString xmlns="" locale="#fra">Les données sur l'étendue minimale annuelle de neige et de glace (MNG) de l'Atlas du Canada à l'échelle nationale sont des ensembles de données compilées contenant des données annuelles de 2000 à aujourd'hui.  Les ensembles de données sont dérivés d'une recherche publiée par le Centre canadien de télédétection qui se basait sur de l’imagerie satellitaire du Canada et des régions avoisinantes classée selon la présence ou l'absence continue de neige et de glace du 1er avril au 20 septembre de chaque année.  Les produits MNG de l'Atlas du Canada consistent en un jeu de données vectorielles et une application d'animation de séries chronologiques matricielles. 

Jeu de données vectorielles 
Le jeu de données vectorielles a été généralisé pour être affiché à l'échelle de 1:1 000 000. 

Application d'animation de séries temporelles 
L'application d'animation de séries chronologiques n'a pas été généralisée à partir de son échelle originale (250 m pixels). 

L'application est diffusée par la plateforme Cube de données, mise en place par le Centre canadien de cartographie et d'observation de la Terre de Ressources naturelles Canada, qui utilise des techniques de gestion de données géospatiales massives.  Ces technologies permettent la visualisation rapide et efficace de données géospatiales à haute résolution et permettent la génération rapide de produits dérivés dynamiques.  La série chronologique est également disponible en tant que service de carte Web (WMS) et service de couverture Web (WCS). 

Reconnaissance
Données sources fournies par Alexander P. Trishchenko, Centre canadien de télédétection, Ressources naturelles Canada.  
Enregistrement de métadonnées : https://open.canada.ca/data/fr/dataset/808b84a1-6356-4103-a8e9-db46d5c20fcf</gmd:LocalisedCharacterString>
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            <gco:CharacterString>The Atlas of Canada National Scale Data 1:1,000,000 Series was compiled to be used for atlas large scale (1:1,000,000 to 1:4,000,000) mapping.  The MSI vectors were originally created to validate glacier layers at 1:1,000,000 based on Randolph Glacier Inventory 5.0 (https://www.glims.org/RGI/) .  The processing power of the data cube was used to create a time-series animation based on the original raster files.</gco:CharacterString>
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                  <gmd:LocalisedCharacterString xmlns="" locale="#fra">La série de données 1:1 000 000 à l’échelle nationale de l’Atlas du Canada a été compilée pour être utilisée pour la cartographie d’atlas à grande échelle (de 1:1 000 000 à 1:4 000 000). Les vecteurs MNG ont été initialement créés pour valider les couches de glaciers à l’échelle 1:1 000 000 selon l’inventaire des glaciers Randolph 5.0 (https://www.glims.org/RGI/ [en anglais seulement]). La puissance de traitement du cube de données a été utilisée pour créer une animation de séries temporelles basée sur les fichiers raster originaux.</gmd:LocalisedCharacterString>
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            <gco:CharacterString>Source data provided by Alexander P. Trishchenko, Canada Centre for Remote Sensing, Natural Resources Canada

Metadata record: https://open.canada.ca/data/en/dataset/808b84a1-6356-4103-a8e9-db46d5c20fcf</gco:CharacterString>
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                  <gmd:LocalisedCharacterString xmlns="" locale="#fra">Données sources fournies par Alexander P. Trishchenko, Centre canadien de télédétection, Ressources naturelles Canada.  
Enregistrement de métadonnées : https://open.canada.ca/data/fr/dataset/808b84a1-6356-4103-a8e9-db46d5c20fcf</gmd:LocalisedCharacterString>
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               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Climate change</gco:CharacterString>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra">Changement climatique</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:keyword>
               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Ice</gco:CharacterString>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra">Glace</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:keyword>
               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Snow</gco:CharacterString>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra">Neige</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:keyword>
               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Ice caps</gco:CharacterString>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra">Calotte glaciaire</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:keyword>
               <gmd:keyword xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Glaciers</gco:CharacterString>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra">Glacier</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:keyword>
               <gmd:type>
                  <gmd:MD_KeywordTypeCode xmlns=""
                                          codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_101"
                                          codeListValue="RI_528">theme; thème</gmd:MD_KeywordTypeCode>
               </gmd:type>
               <gmd:thesaurusName>
                  <gmd:CI_Citation>
                     <gmd:title xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Government of Canada Core Subject Thesaurus</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Thésaurus des sujets de base du gouvernement du Canada</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:title>
                     <gmd:date>
                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2004</gco:Date>
                           </gmd:date>
                           <gmd:dateType>
                              <gmd:CI_DateTypeCode xmlns=""
                                                   codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_87"
                                                   codeListValue="RI_366">creation; création</gmd:CI_DateTypeCode>
                           </gmd:dateType>
                        </gmd:CI_Date>
                     </gmd:date>
                     <gmd:date>
                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2016-07-04</gco:Date>
                           </gmd:date>
                           <gmd:dateType>
                              <gmd:CI_DateTypeCode xmlns=""
                                                   codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_87"
                                                   codeListValue="RI_367">publication; publication</gmd:CI_DateTypeCode>
                           </gmd:dateType>
                        </gmd:CI_Date>
                     </gmd:date>
                     <gmd:citedResponsibleParty>
                        <gmd:CI_ResponsibleParty>
                           <gmd:organisationName xsi:type="gmd:PT_FreeText_PropertyType">
                              <gco:CharacterString>Government of Canada; Library and Archives Canada</gco:CharacterString>
                              <gmd:PT_FreeText>
                                 <gmd:textGroup>
                                    <gmd:LocalisedCharacterString xmlns="" locale="#fra">Gouvernement du Canada; Bibliothèque et Archives Canada</gmd:LocalisedCharacterString>
                                 </gmd:textGroup>
                              </gmd:PT_FreeText>
                           </gmd:organisationName>
                           <gmd:role>
                              <gmd:CI_RoleCode xmlns=""
                                               codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_90"
                                               codeListValue="RI_409">custodian; conservateur</gmd:CI_RoleCode>
                           </gmd:role>
                        </gmd:CI_ResponsibleParty>
                     </gmd:citedResponsibleParty>
                  </gmd:CI_Citation>
               </gmd:thesaurusName>
            </gmd:MD_Keywords>
         </gmd:descriptiveKeywords>
         <gmd:resourceConstraints>
            <gmd:MD_LegalConstraints>
               <gmd:useLimitation xsi:type="gmd:PT_FreeText_PropertyType">
                  <gco:CharacterString>Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)</gco:CharacterString>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra">Licence du gouvernement ouvert - Canada (http://ouvert.canada.ca/fr/licence-du-gouvernement-ouvert-canada)</gmd:LocalisedCharacterString>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:useLimitation>
               <gmd:accessConstraints>
                  <gmd:MD_RestrictionCode xmlns=""
                                          codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_107"
                                          codeListValue="RI_606">license; licence</gmd:MD_RestrictionCode>
               </gmd:accessConstraints>
               <gmd:useConstraints>
                  <gmd:MD_RestrictionCode xmlns=""
                                          codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_107"
                                          codeListValue="RI_606">license; licence</gmd:MD_RestrictionCode>
               </gmd:useConstraints>
               <gmd:otherConstraints xsi:type="gmd:PT_FreeText_PropertyType" gco:nilReason="missing">
                  <gco:CharacterString/>
                  <gmd:PT_FreeText>
                     <gmd:textGroup>
                        <gmd:LocalisedCharacterString xmlns="" locale="#fra"/>
                     </gmd:textGroup>
                  </gmd:PT_FreeText>
               </gmd:otherConstraints>
            </gmd:MD_LegalConstraints>
         </gmd:resourceConstraints>
         <gmd:spatialRepresentationType>
            <gmd:MD_SpatialRepresentationTypeCode xmlns=""
                                                  codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_109"
                                                  codeListValue="RI_635">vector; vecteur</gmd:MD_SpatialRepresentationTypeCode>
         </gmd:spatialRepresentationType>
         <gmd:language>
            <gco:CharacterString>eng; CAN</gco:CharacterString>
         </gmd:language>
         <gmd:language>
            <gco:CharacterString>fra</gco:CharacterString>
         </gmd:language>
         <gmd:characterSet>
            <gmd:MD_CharacterSetCode xmlns=""
                                     codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_95"
                                     codeListValue=""/>
         </gmd:characterSet>
         <gmd:topicCategory>
            <gmd:MD_TopicCategoryCode>climatologyMeteorologyAtmosphere</gmd:MD_TopicCategoryCode>
         </gmd:topicCategory>
         <gmd:environmentDescription gco:nilReason="missing">
            <gco:CharacterString/>
         </gmd:environmentDescription>
         <gmd:extent>
            <gmd:EX_Extent>
               <gmd:temporalElement>
                  <gmd:EX_TemporalExtent>
                     <gmd:extent>
                        <gml:TimePeriod gml:id="d117179e655">
                           <gml:beginPosition>2000-04</gml:beginPosition>
                           <gml:endPosition>2023-08</gml:endPosition>
                        </gml:TimePeriod>
                     </gmd:extent>
                  </gmd:EX_TemporalExtent>
               </gmd:temporalElement>
            </gmd:EX_Extent>
         </gmd:extent>
         <gmd:extent>
            <gmd:EX_Extent>
               <gmd:geographicElement>
                  <gmd:EX_GeographicBoundingBox>
                     <gmd:westBoundLongitude>
                        <gco:Decimal>-141.00</gco:Decimal>
                     </gmd:westBoundLongitude>
                     <gmd:eastBoundLongitude>
                        <gco:Decimal>-52.62</gco:Decimal>
                     </gmd:eastBoundLongitude>
                     <gmd:southBoundLatitude>
                        <gco:Decimal>41.68</gco:Decimal>
                     </gmd:southBoundLatitude>
                     <gmd:northBoundLatitude>
                        <gco:Decimal>83.11</gco:Decimal>
                     </gmd:northBoundLatitude>
                  </gmd:EX_GeographicBoundingBox>
               </gmd:geographicElement>
            </gmd:EX_Extent>
         </gmd:extent>
         <gmd:supplementalInformation gco:nilReason="missing">
            <gco:CharacterString/>
         </gmd:supplementalInformation>
      </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:distributionInfo>
      <gmd:MD_Distribution>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>SHP</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>Unknown</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>FGDB/GDB</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>10</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>WMS</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>1.3.0</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>WCS</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>1.1.1</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>Web App</gco:CharacterString>
               </gmd:name>
               <gmd:version>
                  <gco:CharacterString>unknown</gco:CharacterString>
               </gmd:version>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:distributor>
            <gmd:MD_Distributor>
               <gmd:distributorContact>
                  <gmd:CI_ResponsibleParty>
                     <gmd:individualName gco:nilReason="missing">
                        <gco:CharacterString/>
                     </gmd:individualName>
                     <gmd:organisationName xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Gouvernement du Canada; Ressources naturelles Canada; Secteur de la politique stratégique et innovation</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:organisationName>
                     <gmd:positionName gco:nilReason="missing">
                        <gco:CharacterString/>
                     </gmd:positionName>
                     <gmd:contactInfo>
                        <gmd:CI_Contact>
                           <gmd:phone>
                              <gmd:CI_Telephone>
                                 <gmd:voice xsi:type="gmd:PT_FreeText_PropertyType">
                                    <gco:CharacterString>voice; 1 (819) 564-4857</gco:CharacterString>
                                    <gmd:PT_FreeText>
                                       <gmd:textGroup>
                                          <gmd:LocalisedCharacterString xmlns="" locale="#fra">voix; 1 (819) 564-4857</gmd:LocalisedCharacterString>
                                       </gmd:textGroup>
                                    </gmd:PT_FreeText>
                                 </gmd:voice>
                                 <gmd:facsimile gco:nilReason="missing">
                                    <gco:CharacterString/>
                                 </gmd:facsimile>
                              </gmd:CI_Telephone>
                           </gmd:phone>
                           <gmd:address>
                              <gmd:CI_Address>
                                 <gmd:deliveryPoint xsi:type="gmd:PT_FreeText_PropertyType" gco:nilReason="missing">
                                    <gco:CharacterString/>
                                    <gmd:PT_FreeText>
                                       <gmd:textGroup>
                                          <gmd:LocalisedCharacterString xmlns="" locale="#fra"/>
                                       </gmd:textGroup>
                                    </gmd:PT_FreeText>
                                 </gmd:deliveryPoint>
                                 <gmd:city gco:nilReason="missing">
                                    <gco:CharacterString/>
                                 </gmd:city>
                                 <gmd:administrativeArea xsi:type="gmd:PT_FreeText_PropertyType" gco:nilReason="missing">
                                    <gco:CharacterString/>
                                    <gmd:PT_FreeText>
                                       <gmd:textGroup>
                                          <gmd:LocalisedCharacterString xmlns="" locale="#fra"/>
                                       </gmd:textGroup>
                                    </gmd:PT_FreeText>
                                 </gmd:administrativeArea>
                                 <gmd:postalCode gco:nilReason="missing">
                                    <gco:CharacterString/>
                                 </gmd:postalCode>
                                 <gmd:country xsi:type="gmd:PT_FreeText_PropertyType" gco:nilReason="missing">
                                    <gco:CharacterString/>
                                    <gmd:PT_FreeText>
                                       <gmd:textGroup>
                                          <gmd:LocalisedCharacterString xmlns="" locale="#fra"/>
                                       </gmd:textGroup>
                                    </gmd:PT_FreeText>
                                 </gmd:country>
                                 <gmd:electronicMailAddress xsi:type="gmd:PT_FreeText_PropertyType">
                                    <gco:CharacterString>geoinfo@canada.ca</gco:CharacterString>
                                    <gmd:PT_FreeText>
                                       <gmd:textGroup>
                                          <gmd:LocalisedCharacterString xmlns="" locale="#fra">geoinfo@canada.ca</gmd:LocalisedCharacterString>
                                       </gmd:textGroup>
                                    </gmd:PT_FreeText>
                                 </gmd:electronicMailAddress>
                              </gmd:CI_Address>
                           </gmd:address>
                           <gmd:onlineResource>
                              <gmd:CI_OnlineResource>
                                 <gmd:linkage gco:nilReason="missing">
                                    <gmd:URL/>
                                 </gmd:linkage>
                                 <gmd:protocol>
                                    <gco:CharacterString>http</gco:CharacterString>
                                 </gmd:protocol>
                              </gmd:CI_OnlineResource>
                           </gmd:onlineResource>
                           <gmd:hoursOfService xsi:type="gmd:PT_FreeText_PropertyType" gco:nilReason="missing">
                              <gco:CharacterString/>
                              <gmd:PT_FreeText>
                                 <gmd:textGroup>
                                    <gmd:LocalisedCharacterString xmlns="" locale="#fra"/>
                                 </gmd:textGroup>
                              </gmd:PT_FreeText>
                           </gmd:hoursOfService>
                        </gmd:CI_Contact>
                     </gmd:contactInfo>
                     <gmd:role>
                        <gmd:CI_RoleCode xmlns=""
                                         codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_90"
                                         codeListValue="RI_412">distributor; distributeur</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://datacube.services.geo.ca/en/viewer/eo4ce/msi/index.html</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>MSI Time Series Application 2000 - 2023</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Application séries temporelles MNG 2000 à 2023</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Application;Web App;eng</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Application;Web App;eng</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://datacube.services.geo.ca/fr/viewer/eo4ce/msi/index.html</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>MSI Time Series Application 2000 - 2023</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Application séries temporelles MNG 2000 à 2023</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Application;Web App;fra</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Application;Web App;fra</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://datacube.services.geo.ca/ows/msi?service=wms&amp;request=GetCapabilities</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>WMS - MSI Time Series 2000 - 2023</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">WMS - Application séries temporelles MNG 2000 à 2023</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Web Service;WMS;eng,fra</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Service Web;WMS;eng,fra</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://datacube.services.geo.ca/ows/msi?service=wcs&amp;request=GetCapabilities</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>WCS - MSI Time Series 2000 - 2023</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">WCS - Application séries temporelles MNG 2000 à 2023</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Web Service;WCS;eng,fra</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Service Web;WCS;eng,fra</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://ftp.maps.canada.ca/pub/nrcan_rncan/vector/framework_cadre/Atlas_of_Canada_MSI_TimeSeries</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTP</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>MSI vectors 2000-2019 Download ZIP (gdb, shp) through HTTP</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">MNG vecteurs 2000 à 2019 Télécharger le fichier en format ZIP (gdb, shp) via HTTP</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Dataset;ZIP;eng,fra</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Données;ZIP;eng,fra</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://publications.gc.ca/site/eng/9.837267/publication.html?wbdisable=false</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTP</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Initial validation of Randolph Glacier inventory: version 5.0 data over Canada using 250 m MODIS-derived annual minimum snow/ice extent (English only)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Initial validation of Randolph Glacier inventory: version 5.0 data over Canada using 250 m MODIS-derived annual minimum snow/ice extent (en anglais seulement)</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Supporting Document;PDF;eng</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Document de soutien;PDF;eng</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://datacube.services.geo.ca/api/collections/msi/items</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>SpatioTemporal Asset Catalog (STAC) Application Programming Interface (API)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Interface de programmation (API) pour SpatioTemporal Asset Catalog (STAC)</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>API;JSON;zxx</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">API;JSON;zxx</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine xlink:role="urn:xml:lang:eng-CAN">
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://datacube.services.geo.ca/web/msi.xml?request=GetCapabilities&amp;service=WMS&amp;version=1.3.0&amp;layers=msi-94-or-more&amp;legend_format=image%2Fpng&amp;feature_info_type=text%2Fxml</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>OGC:WMS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Probability of permanent snow and ice (94% or more)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Probabilité de neige et glace permanente (94% ou plus)</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Web Service;WMS;eng</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Service Web;WMS;eng</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
               <gmd:onLine xlink:role="urn:xml:lang:fra-CAN">
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://datacube.services.geo.ca/web/msi.xml?request=GetCapabilities&amp;service=WMS&amp;version=1.3.0&amp;layers=msi-94-or-more&amp;legend_format=image%2Fpng&amp;feature_info_type=text%2Fxml</gmd:URL>
                     </gmd:linkage>
                     <gmd:protocol>
                        <gco:CharacterString>OGC:WMS</gco:CharacterString>
                     </gmd:protocol>
                     <gmd:name xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Probability of permanent snow and ice (94% or more)</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Probabilité de neige et glace permanente (94% ou plus)</gmd:LocalisedCharacterString>
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                     </gmd:name>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Web Service;WMS;fra</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Service Web;WMS;fra</gmd:LocalisedCharacterString>
                           </gmd:textGroup>
                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
      </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo/>
  <gmd:dataQualityInfo>
      <gmd:DQ_DataQuality>
         <gmd:scope>
            <gmd:DQ_Scope>
               <gmd:level>
                  <gmd:MD_ScopeCode xmlns=""
                                    codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_108"
                                    codeListValue="RI_631">service; service</gmd:MD_ScopeCode>
               </gmd:level>
            </gmd:DQ_Scope>
         </gmd:scope>
         <gmd:lineage>
            <gmd:LI_Lineage>
               <gmd:processStep>
                  <gmd:LI_ProcessStep>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Time Series
The web application and the WMS, WCS services present the MSI V4 data from the Trishchenko et al. research (see credits). For the layer Permanent snow/ice  (prob. 94% or more), a threshold of 94% is dynamically applied to the original image. Probability equal to 94% (i.e., 16 or 17 points of snow/ice) was originally chosen as the threshold value for "permanent" snow/ice cover in Trishchenko et al. (2016).</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Séries temporelles 
L’application web et les services WMS, WCS et STAC API présentent les données de la recherche de Trishchenko et coll. (voir les références). Pour la couche Neige et glace permanente (probabilité de 94 % ou plus), un seuil de 94 % est appliqué dynamiquement sur l’image originale. La probabilité égale à 94 % (c’est-à-dire 16 ou 17 points de neige/glace) a été initialement choisie comme valeur seuil pour une couverture de neige/glace « permanente » selon Trishchenko et coll. (2016).</gmd:LocalisedCharacterString>
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                        </gmd:PT_FreeText>
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                  </gmd:LI_ProcessStep>
               </gmd:processStep>
            </gmd:LI_Lineage>
         </gmd:lineage>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:dataQualityInfo>
      <gmd:DQ_DataQuality>
         <gmd:scope>
            <gmd:DQ_Scope>
               <gmd:level>
                  <gmd:MD_ScopeCode xmlns=""
                                    codeList="http://nap.geogratis.gc.ca/metadata/register/napMetadataRegister.xml#IC_108"
                                    codeListValue="RI_622">dataset; jeuDonnées</gmd:MD_ScopeCode>
               </gmd:level>
            </gmd:DQ_Scope>
         </gmd:scope>
         <gmd:lineage>
            <gmd:LI_Lineage>
               <gmd:processStep>
                  <gmd:LI_ProcessStep>
                     <gmd:description xsi:type="gmd:PT_FreeText_PropertyType">
                        <gco:CharacterString>Vector Dataset
The 1:1 million Annual Minimum Snow and Ice (MSI) layers were produced from the MSI raster data (see credits). 
  
The raster cells for each year that met the threshold (greater or equal to 194) were selected and converted into vectors.  This threshold represents a 94% probability of the consistent presence of snow or ice over a particular pixel location.  Once the selected raster cells were converted into a vector layer, polygons were generated for all holes within each polygon and attributes were assigned to identify MSI and hole features.  The area for each polygon was also assigned to a new field so it could be used for selection purposes.  Once this initial layer was generated,  MSI polygons (500,000 m2) and holes polygons (100,000 m2) were selected based on a size threshold.  Polygons below the threshold were removed and holes below the threshold were dissolved and merged with the MSI polygons.  These features were then smoothed using the PAEK (Polynomial Approximation with Exponential Kernel) algorithm and simplified (removes extra vertices).  The polygon layer was then dissolved to remove any overlap and erroneous small polygons were removed creating the final MSI layer. 
 
For the period 2000-2016 the data used is from MSI V3 derived from MODIS/Terra Collection 5 surface level data.  For the period 2017-2019 the data used is from MSI V4 top-of-atmosphere (TOA) clear-sky composites generated from MODIS Collection 6.  Since there is no significant statistical difference between V3 and V4, the vector data for the period 2000-2016 was not reprocessed for V4. August 15th is used as the approximate average date for MSI for each year.</gco:CharacterString>
                        <gmd:PT_FreeText>
                           <gmd:textGroup>
                              <gmd:LocalisedCharacterString xmlns="" locale="#fra">Ensemble de données vectorielles 
Les couches à 1:1 million de neige et de glace minimales annuelles (MNG) ont été produites à partir des données matricielles MNG (voir les références).  
  
Les cellules matricielles de chaque année qui ont atteint le seuil (supérieur ou égal à 194) ont été sélectionnées et converties en vecteurs. Ce seuil représente une probabilité de 94 % de la présence constante de neige ou de glace sur l’emplacement d’un pixel particulier. Une fois que les cellules matricielles sélectionnées ont été converties en couche vectorielle, des polygones ont été générés pour tous les trous retrouvés dans chaque polygone et des attributs ont été assignés pour identifier les caractéristiques des MNG et des trous. La superficie de chaque polygone a également été attribuée à un nouveau champ afin qu’elle puisse être utilisée à des fins de sélection. Une fois cette couche initiale générée, les polygones de MNG (500 000 m²) et les polygones de trous (100 000 m²) ont été sélectionnés en fonction d’un seuil de taille. Les polygones inférieurs au seuil ont été supprimés et les trous inférieurs au seuil ont été dissous et fusionnés avec les polygones MNG. Ces caractéristiques ont ensuite été lissées à l’aide de l’algorithme PAEK (approximation polynomiale avec noyau exponentiel) et simplifiées (suppression des sommets supplémentaires). La couche de polygones a ensuite été dissoute afin de supprimer tout chevauchement et les petits polygones erronés ont été supprimés, créant ainsi la couche MNG finale.  
  
Pour la période 2000-2016, les données utilisées proviennent de MNG V3 dérivées des données de niveau de surface de MODIS/Terra Collection 5. Pour la période 2017-2019, les données utilisées proviennent de composites de ciel clair au sommet de l’atmosphère (TOA) MNG V4 générés à partir de la collection 6 de MODIS. Comme il n’y a pas de différence statistique significative entre V3 et V4, les données vectorielles de la période 2000-2016 n’ont pas été retraitées pour V4.  Le 15 août est utilisé comme date moyenne approximative du MNG pour chaque année.</gmd:LocalisedCharacterString>
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                        </gmd:PT_FreeText>
                     </gmd:description>
                  </gmd:LI_ProcessStep>
               </gmd:processStep>
            </gmd:LI_Lineage>
         </gmd:lineage>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>