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The High Resolution Digital Elevation Model (HRDEM) product used is derived from airborne LiDAR data (mainly in the south) and satellite images in the north. The mosaic is available for both the Digital Terrain Model (DTM) and the Digital Surface Model (DSM) from web mapping services. It is part of the CanElevation Series created to support the National Elevation Data Strategy implemented by NRCan. This strategy aims to increase Canada's coverage of high-resolution elevation data and increase the accessibility of the products.\\n\\nUnlike the HRDEM product in the same series, which is distributed by acquisition project without integration between projects, the mosaic is created to provide a single, continuous representation of strategy data. The most recent datasets for a given territory are used to generate the mosaic. This mosaic is disseminated through the Data Cube Platform, implemented by NRCan using geospatial big data management technologies. These technologies enable the rapid and efficient visualization of high-resolution geospatial data and allow for the rapid generation of dynamically derived products. The mosaic is available from Web Map Services (WMS), Web Coverage Services (WCS) and SpatioTemporal Asset Catalog (STAC) collections. Accessible data includes the Digital Terrain Model (DTM), the Digital Surface Model (DSM) and derived products such as shaded relief and slope.\\n\\nThe mosaic is referenced to the Canadian Height Reference System 2013 (CGVD2013) which is the reference standard for orthometric heights across Canada.\\n\\nSource data for HRDEM datasets used to create the mosaic is acquired through multiple projects with different partners.\\n\\nCollaboration is a key factor to the success of the National Elevation Strategy. Refer to the \u201cSupporting Document\u201d section to access the list of the different partners including links to their respective data.", "description_fr": "La Mosa\u00efque de mod\u00e8le num\u00e9rique d\u2019\u00e9l\u00e9vation de haute r\u00e9solution offre une repr\u00e9sentation unique et continue des donn\u00e9es d\u2019\u00e9l\u00e9vation haute r\u00e9solution disponibles au pays. Le produit Mod\u00e8le num\u00e9rique d'\u00e9l\u00e9vation de haute r\u00e9solution (MNEHR) utilis\u00e9 est d\u00e9riv\u00e9 de donn\u00e9es LiDAR a\u00e9roport\u00e9 (principalement au sud) et d'images satellitaires au nord. La mosa\u00efque est disponible pour le mod\u00e8le num\u00e9rique de terrain (MNT) et le mod\u00e8le num\u00e9rique de surface (MNS) \u00e0 partir de services de cartographie web. Elle fait partie de la S\u00e9rie Can\u00c9l\u00e9vation cr\u00e9\u00e9e pour appuyer la Strat\u00e9gie nationale de donn\u00e9es d\u2019\u00e9l\u00e9vation mise en oeuvre par RNCan. Cette strat\u00e9gie vise \u00e0 accro\u00eetre la couverture du Canada en donn\u00e9es d\u2019\u00e9l\u00e9vation de haute r\u00e9solution et \u00e0 augmenter l\u2019accessibilit\u00e9 des produits.\\n\\nContrairement au produit MNEHR de la m\u00eame s\u00e9rie qui est distribu\u00e9 par projet d\u2019acquisition sans int\u00e9gration entre les projets, la mosa\u00efque est cr\u00e9\u00e9e dans le but de fournir une repr\u00e9sentation unique et continue des donn\u00e9es de la strat\u00e9gie. Les jeux de donn\u00e9es les plus r\u00e9cents pour un territoire donn\u00e9 sont utilis\u00e9s pour g\u00e9n\u00e9rer la mosa\u00efque. Cette mosa\u00efque est diffus\u00e9e gr\u00e2ce \u00e0 la Plateforme de cube de donn\u00e9es, mis en place par RNCan et qui utilise des technologies de gestion de m\u00e9gadonn\u00e9es g\u00e9ospatiales. Ces technologies permettent une visualisation rapide et efficace de donn\u00e9es g\u00e9ospatiales \u00e0 haute r\u00e9solution et permettent de g\u00e9n\u00e9rer rapidement des produits d\u00e9riv\u00e9s dynamiquement. La mosa\u00efque est disponible \u00e0 partir de services web cartographiques Web Map Services (WMS), Web Map Coverage (WCS) et collections SpatioTemporal Asset Catalog (STAC). Les donn\u00e9es accessibles comprennent le mod\u00e8le num\u00e9rique de terrain (MNT), le mod\u00e8le num\u00e9rique de surface (MNS) ainsi que des produits d\u00e9riv\u00e9s tels que le relief ombrag\u00e9 et la pente.\\n\\nLa mosa\u00efque est r\u00e9f\u00e9renc\u00e9e au Syst\u00e8me canadien de r\u00e9f\u00e9rence altim\u00e9trique de 2013 (CGVD2013) qui est le standard de r\u00e9f\u00e9rence pour les altitudes orthom\u00e9triques \u00e0 travers le Canada.\\n\\nLes donn\u00e9es sources du produit MNEHR ayant servi \u00e0 cr\u00e9er la mosa\u00efque sont acquises par des projets multiples de diff\u00e9rents partenaires.\\n\\nLa collaboration est un facteur cl\u00e9 dans le succ\u00e8s de la Strat\u00e9gie nationale d'\u00e9l\u00e9vation. R\u00e9f\u00e9rez-vous \u00e0 la section \u00ab Document de soutien \u00bb pour acc\u00e9der \u00e0 la liste des diff\u00e9rents partenaires incluant des liens \u00e0 leurs donn\u00e9es respectives.", "published": "2025-03-07", "keywords_en": ["Digital Elevation Model", "Digital Surface Model", "Digital Terrain Model", "LiDAR", "Shaded Relief", "Color Shaded Relief", "Slope Map", "Aspect Map", "Mosaic", "ArcticSDI_DEM", "Digital elevation data"], "keywords_fr": ["Mod\u00e8le num\u00e9rique d'\u00e9l\u00e9vation", "Mod\u00e8le num\u00e9rique de surface", "Mod\u00e8le num\u00e9rique de terrain", "LiDAR", "Relief ombr\u00e9", "Relief ombr\u00e9 couleur", "Carte de pente", "Carte d'aspect", "Mosa\u00efque", "IDS-Arctique_MNE", "Donn\u00e9es num\u00e9riques d'\u00e9l\u00e9vation"], "options": [{"url": "https://datacube.services.geo.ca/ows/elevation?service=wms&request=GetCapabilities", "protocol": "HTTPS", "name": {"en": "HRDEM Mosaic Web Map Service (WMS)", "fr": "Service de cartographie web (WMS) de la mosa\u00efque MNEHR"}, "description": {"en": "Web Service;WMS;zxx", "fr": "Service Web;WMS;zxx"}}, {"url": "https://datacube.services.geo.ca/ows/elevation?service=wcs&request=GetCapabilities", "protocol": "HTTPS", "name": {"en": "HRDEM Mosaic Web Coverage Service (WCS)", "fr": "Service de couverture web (WCS) de la mosa\u00efque MNEHR"}, "description": {"en": "Web Service;WCS;zxx", "fr": "Service Web;WCS;zxx"}}, {"url": "https://ftp.maps.canada.ca/pub/elevation/dem_mne/HRDEMmosaic_mosaiqueMNEHR/Metadata_HRDEMmosaic_mosaiqueMNEHR_DSM_MNS.gdb.zip", "protocol": "FTP", "name": {"en": "HRDEM Mosaic DSM Metadata", "fr": "M\u00e9tadonn\u00e9e du MNS de la mosa\u00efque MNEHR"}, "description": {"en": "Dataset;FGDB/GDB;eng,fra", "fr": "Donn\u00e9es;FGDB/GDB;eng,fra"}}, {"url": "https://ftp.maps.canada.ca/pub/elevation/dem_mne/HRDEMmosaic_mosaiqueMNEHR/Metadata_HRDEMmosaic_mosaiqueMNEHR_DTM_MNT.gdb.zip", "protocol": "FTP", "name": {"en": "HRDEM Mosaic DTM Metadata", "fr": "M\u00e9tadonn\u00e9e du MNT de la mosa\u00efque MNEHR"}, "description": {"en": "Dataset;FGDB/GDB;eng,fra", "fr": "Donn\u00e9es;FGDB/GDB;eng,fra"}}, {"url": "https://datacube.services.geo.ca/en/viewer/elevation/index.html", "protocol": "HTTP", "name": {"en": "HRDEM Mosaic Product Viewer (English)", "fr": "Visualisateur du produit de la mosa\u00efque MNEHR (anglais)"}, "description": {"en": "Application;HTML;eng", "fr": "Application;HTML;eng"}}, {"url": "https://datacube.services.geo.ca/fr/viewer/elevation/index.html", "protocol": "HTTP", "name": {"en": "HRDEM Mosaic Product Viewer (French)", "fr": "Visualisateur du produit de la mosa\u00efque MNEHR (fran\u00e7ais)"}, "description": {"en": "Application;HTML;fra", "fr": "Application;HTML;fra"}}, {"url": "https://ftp.maps.canada.ca/pub/elevation/dem_mne/HRDEMmosaic_mosaiqueMNEHR/HRDEM_Mosaic_WCS-WMS_instructions_EN.pdf", "protocol": "HTTPS", "name": {"en": "Product services access guide (English)", "fr": "Guide d'acc\u00e8s aux services (Anglais)"}, "description": {"en": "Supporting Document;PDF;eng", "fr": "Document de soutien;PDF;eng"}}, {"url": "https://ftp.maps.canada.ca/pub/elevation/dem_mne/HRDEMmosaic_mosaiqueMNEHR/MNEHR_Mosaique_WCS-WMS_instructions_FR.pdf", "protocol": "HTTPS", "name": {"en": "Product services access guide (French)", "fr": "Guide d'acc\u00e8s aux services (Fran\u00e7ais)"}, "description": {"en": "Supporting Document;PDF;fra", "fr": "Document de soutien;PDF;fra"}}, {"url": "https://maps.canada.ca/czs/index-en.html", "protocol": "HTTPS", "name": {"en": "Dynamic extraction tool (English)", "fr": "Outil d'extraction dynamique (Anglais)"}, "description": {"en": "Application;HTML;eng", "fr": "Application;HTML;eng"}}, {"url": "https://cartes.canada.ca/czs/index-fr.html", "protocol": "HTTPS", "name": {"en": "Dynamic extraction tool (French)", "fr": "Outil d'extraction dynamique (Fran\u00e7ais)"}, "description": {"en": "Application;HTML;fra", "fr": "Application;HTML;fra"}}, {"url": "https://datacube.services.geo.ca/stac/api/search?collections=hrdem-mosaic-1m,hrdem-mosaic-2m", "protocol": "HTTPS", "name": {"en": "SpatioTemporal Asset Catalog (STAC) Application Programming Interface (API)", "fr": "Interface de programmation (API) pour SpatioTemporal Asset Catalog (STAC)"}, "description": {"en": "API;JSON;eng,fra", "fr": "API;JSON;eng,fra"}}, {"url": "null", "protocol": "null", "name": {"en": "null", "fr": "null"}, "description": {"en": "null", "fr": "null"}}, {"url": "https://ftp.maps.canada.ca/pub/elevation/dem_mne/HRDEMmosaic_mosaiqueMNEHR/HRDEM_Mosaic_Product_Specification.pdf", "protocol": "HTTPS", "name": {"en": "High Resolution Digital Elevation Model Mosaic (HRDEM Mosaic) - 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files (download directory) (French)", "fr": "Fichiers FGDB pr\u00e9-emball\u00e9s (r\u00e9pertoire de t\u00e9l\u00e9chargement) (Fran\u00e7ais)"}, "description": {"en": "Dataset;FGDB/GDB;fra", "fr": "Donn\u00e9es;FGDB/GDB;fra"}}, {"url": "https://ftp.maps.canada.ca/pub/nrcan_rncan/vector/geobase_nhn_rhn/kml_en/", "protocol": "HTTPS", "name": {"en": "Pre-packaged KMZ files (download directory) (English)", "fr": "Fichiers KMZ pr\u00e9-emball\u00e9s (r\u00e9pertoire de t\u00e9l\u00e9chargement) (Anglais)"}, "description": {"en": "Dataset;KMZ;eng", "fr": "Donn\u00e9es;KMZ;eng"}}, {"url": "https://ftp.maps.canada.ca/pub/nrcan_rncan/vector/geobase_nhn_rhn/kml_fr/", "protocol": "HTTPS", "name": {"en": "Pre-packaged KMZ files (download directory) (French)", "fr": "Fichiers KMZ pr\u00e9-emball\u00e9s (r\u00e9pertoire de t\u00e9l\u00e9chargement) (Fran\u00e7ais)"}, "description": {"en": "Dataset;KMZ;fra", "fr": "Donn\u00e9es;KMZ;fra"}}, {"url": "https://ftp.maps.canada.ca/pub/nrcan_rncan/vector/geobase_nhn_rhn/gml_en/", "protocol": "HTTPS", "name": {"en": "Pre-packaged GML files (download directory) (English)", "fr": "Fichiers GML pr\u00e9-emball\u00e9s (r\u00e9pertoire de t\u00e9l\u00e9chargement) (Anglais)"}, "description": {"en": "Dataset;GML;eng", "fr": "Donn\u00e9es;GML;eng"}}, {"url": "https://ftp.maps.canada.ca/pub/nrcan_rncan/vector/geobase_nhn_rhn/gml_fr/", "protocol": "HTTPS", "name": {"en": "Pre-packaged GML files (download directory) (French)", "fr": "Fichiers GML pr\u00e9-emball\u00e9s (r\u00e9pertoire de t\u00e9l\u00e9chargement) (Fran\u00e7ais)"}, "description": {"en": "Dataset;GML;fra", "fr": "Donn\u00e9es;GML;fra"}}], "contact": [{"individual": "null", "position": {"en": "null", "fr": "null"}, "organisation": {"en": "Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Geobase", "fr": "Gouvernement du Canada; Ressources naturelles Canada;Secteur de la politique strat\u00e9gique et de l\u2019innovation, Centre canadien de cartographie et d'observation de la Terre, Plateforme g\u00e9ospatiale f\u00e9d\u00e9rale, G\u00e9obase"}, "telephone": {"en": "null", "fr": "null"}, "fax": "null", "address": {"en": "null", "fr": "null"}, "city": "null", "pt": {"en": "null", "fr": "null"}, "postalcode": "null", "country": {"en": "Canada", "fr": "Canada"}, "email": {"en": "geoinfo@nrcan-rncan.gc.ca", "fr": "geoinfo@nrcan-rncan.gc.ca"}, "onlineresource": {"onlineresource": "null", "onlineresource_name": "null", "onlineresource_protocol": "http", "onlineresource_description": "null"}, "hoursOfService": "null", "role": "pointOfContact; contact"}], "cited": [{"individual": "null", "position": {"en": "null", "fr": "null"}, "organisation": {"en": "Government of Canada; Natural Resources Canada;Strategic Policy and Innovation Sector, Canada Centre for Mapping and Earth Observation, Geobase", "fr": "Gouvernement du Canada; Ressources naturelles Canada;Secteur de la politique strat\u00e9gique et de l\u2019innovation, Centre canadien de cartographie et d'observation de la Terre, Plateforme g\u00e9ospatiale f\u00e9d\u00e9rale, G\u00e9obase"}, "telephone": {"en": "null", "fr": "null"}, "fax": "null", "address": {"en": "null", "fr": "null"}, "city": "null", "pt": {"en": "null", "fr": "null"}, "postalcode": "null", "country": {"en": "Canada", "fr": "Canada"}, "email": {"en": "geoinfo@nrcan-rncan.gc.ca", "fr": "geoinfo@nrcan-rncan.gc.ca"}, "onlineResource": {"onlineResource": "null", "onlineResource_Name": "null", "onlineResource_Protocol": "null", "onlineResource_Description": "null"}, "hoursOfService": "null", "role": "pointOfContact; contact"}], "topicCategory": ["geoscientificInformation"], "created": "2004-08-01", "spatialRepresentation": "vector; vecteur", "type": ["Dataset", "Supporting Document", "Web Service"], "temporalExtent": {"begin": "1944", "end": null}, "graphicOverview": [{"overviewFileName": "https://ftp.geogratis.gc.ca/pub/fgp_pgf/thumbnail/NHN_Network.PNG", "overviewFileDescription": "null", "overviewFileTupe": "null"}, {"overviewFileName": "http://ftp.geogratis.gc.ca/pub/fgp_pgf/thumbnail/NHN_Network.PNG", "overviewFileDescription": "null", "overviewFileTupe": "null"}], "language": "eng; CAN", "organisation": {"en": "Natural Resources Canada", "fr": "Ressources naturelles Canada"}, "theme": ["science", "foundational"], "mappable": "true", "foundational": "true", "popularity": 991223, "systemName": "geo-ca", "eoCollection": null, "eoFilters": []}}]}, {"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-141.003, 41.6755], [-52.6174, 41.6755], [-52.6174, 83.1139], [-141.003, 83.1139], [-141.003, 41.6755]]]}, "properties": {"row_num": 8, "id": "08b810c2-7c81-40f1-adb1-c32c8a2c9f50", "title_en": "Floods in Canada - Cartographic Product Collection", "title_fr": "Inondations au Canada - collections de produits cartographiques", "description_en": "Collection of flood products for active and past floods throughout Canada as monitored by Natural Resources Canada using satellite imagery for emergency response. This collection of cartographic products regroups flood extent polygons and their associated footprints. Three visualization timeframes are available :  \\n  \\n- **[Active Floods in Canada](https://open.canada.ca/data/en/dataset/9cad712a-5ac5-4248-b7d7-2db1a3892509)** \\n- **[Floods in Canada - Current Year](https://open.canada.ca/data/en/dataset/b1afd8d2-6e14-4ec4-9a09-652221a6cb71)**  \\n- **[Floods in Canada - Archive](https://open.canada.ca/data/en/dataset/74144824-206e-4cea-9fb9-72925a128189)**", "description_fr": "Collection de produits d\u2019inondations en cours et pass\u00e9es au Canada telles que cartographi\u00e9es par Ressources naturelles Canada \u00e0 partir d\u2019imagerie satellitaire pour la gestion des urgences. Cette collection de produits cartographiques regroupe les polygones d\u2019\u00e9tendue des inondations et leurs empreintes au sol. Trois p\u00e9riodes de visualisation sont accessibles :  \\n  \\n- **[Inondations en cours au Canada](https://ouvert.canada.ca/data/fr/dataset/9cad712a-5ac5-4248-b7d7-2db1a3892509)**  \\n- **[Inondations au Canada \u2013 Ann\u00e9e Courante](https://ouvert.canada.ca/data/fr/dataset/b1afd8d2-6e14-4ec4-9a09-652221a6cb71)**   \\n- **[Inondations au Canada \u2013 Archives](https://ouvert.canada.ca/data/fr/dataset/74144824-206e-4cea-9fb9-72925a128189)**", "published": "2018-04-12", "keywords_en": ["Emergency services", "History", "Archives", "Floods", "Natural disasters"], "keywords_fr": ["Services d'urgence", "Histoire", "Archives", "Inondation", "Catastrophe naturelle"], "options": [], "contact": [{"individual": "null", "position": {"en": "null", "fr": "null"}, "organisation": {"en": "Government of Canada; Natural Resources Canada", "fr": "Gouvernement du Canada; Ressources naturelles Canada"}, "telephone": {"en": "null", "fr": "null"}, "fax": "null", "address": {"en": "null", "fr": "null"}, "city": "null", "pt": {"en": "null", "fr": "null"}, "postalcode": "null", "country": {"en": "Canada", "fr": "Canada"}, "email": {"en": "fgp-pgf@nrcan-rncan.gc.ca", "fr": "fgp-pgf@nrcan-rncan.gc.ca"}, "onlineresource": {"onlineresource": "null", "onlineresource_name": "null", "onlineresource_protocol": "http", "onlineresource_description": "null"}, "hoursOfService": "null", "role": "pointOfContact; contact"}], "cited": [{"individual": "null", "position": {"en": "null", "fr": "null"}, "organisation": {"en": "Government of Canada; Natural Resources Canada", "fr": "Gouvernement du Canada; Ressources naturelles Canada"}, "telephone": {"en": "null", "fr": "null"}, "fax": "null", "address": {"en": "null", "fr": "null"}, "city": "null", "pt": {"en": "null", "fr": "null"}, "postalcode": "null", "country": {"en": "null", "fr": "null"}, "email": {"en": "egs-sgu@nrcan-rncan.gc.ca", "fr": "egs-sgu@nrcan-rncan.gc.ca"}, "onlineResource": {"onlineResource": "null", "onlineResource_Name": "null", "onlineResource_Protocol": "http", "onlineResource_Description": "null"}, "hoursOfService": "null", "role": "pointOfContact; contact"}], "topicCategory": ["inlandWaters"], "created": "2011-04-29", "spatialRepresentation": "vector; vecteur", "type": [], "temporalExtent": {"begin": "2011-04-04", "end": null}, "graphicOverview": [{"overviewFileName": "http://ftp.maps.canada.ca/pub/nrcan_rncan/Floods_Inondation/archive_archives/thumbnail/EGS_Flood_Product_Archive_thumb.png", "overviewFileDescription": "null", "overviewFileTupe": "null"}, {"overviewFileName": "https://csw.open.canada.ca/geonetwork/srv/api/records/08b810c2-7c81-40f1-adb1-c32c8a2c9f50/attachments/Inondation2.png", "overviewFileDescription": "large_thumbnail", "overviewFileType": "png; png"}], "language": "eng; CAN", "organisation": {"en": "Natural Resources Canada", "fr": "Ressources naturelles Canada"}, "theme": ["environment", "emergency", "foundational"], "mappable": "false", "foundational": "true", "popularity": 721024, "systemName": "geo-ca", "eoCollection": null, "eoFilters": []}}]}, {"type": "FeatureCollection", "features": [{"type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[-142, 41], [-52, 41], [-52, 84], [-142, 84], [-142, 41]]]}, "properties": {"row_num": 9, "id": "7f245e4d-76c2-4caa-951a-45d1d2051333", "title_en": "Canadian Digital Elevation Model, 1945-2011", "title_fr": "Mod\u00e8le num\u00e9rique d'\u00e9l\u00e9vation du Canada, 1945-2011", "description_en": "This collection is a legacy product that is no longer supported. It may not meet current government standards.\\n\\nThe Canadian Digital Elevation Model (CDEM) is part of Natural Resources Canada's altimetry system designed to better meet the users' needs for elevation data and products.\\n\\nThe CDEM stems from the existing Canadian Digital Elevation Data (CDED). In these data, elevations can be either ground or reflective surface elevations.\\n\\nA CDEM mosaic can be obtained for a pre-defined or user-defined extent. The coverage and resolution of a mosaic varies according to latitude and to the extent of the requested area.\\nDerived products such as slope, shaded relief and colour shaded relief maps can also be generated on demand by using the Geospatial-Data Extraction tool. Data can then be saved in many formats.\\n\\nThe pre-packaged GeoTiff datasets are based on the National Topographic System of Canada (NTS) at the 1:250 000 scale; the NTS index file is available in the Resources section in many formats.", "description_fr": "Ce produit fait maintenant partie du patrimoine, il n\u2019est plus maintenu.  Il pourrait ne pas respecter les normes actuelles du gouvernement.\\n\\nLe Mod\u00e8le num\u00e9rique d'\u00e9l\u00e9vation du Canada (MN\u00c9C) fait partie du syst\u00e8me d'altim\u00e9trie con\u00e7u par Ressources naturelles Canada afin de mieux r\u00e9pondre aux besoins des utilisateurs de donn\u00e9es et de produits d'\u00e9l\u00e9vation.\\n\\nLe MN\u00c9C est issu des Donn\u00e9es num\u00e9riques d'\u00e9l\u00e9vation du Canada (DNEC) existantes. Ces donn\u00e9es peuvent refl\u00e9ter les \u00e9l\u00e9vations du sol ou de toute autre surface r\u00e9flective.\\n\\nUne mosa\u00efque du MN\u00c9C peut \u00eatre obtenue pour une r\u00e9gion pr\u00e9d\u00e9finie ou d\u00e9finie par l'utilisateur. La couverture et la r\u00e9solution des mosa\u00efques varient selon la latitude et selon l'\u00e9tendue de la r\u00e9gion demand\u00e9e.\\nDes produits d\u00e9riv\u00e9s tels que des cartes de pente, de relief ombrag\u00e9 et de relief ombrag\u00e9 en couleurs peuvent aussi \u00eatre g\u00e9n\u00e9r\u00e9s sur demande en utilisant l'outil d'extraction de donn\u00e9es g\u00e9ospatiales. Les donn\u00e9es peuvent alors \u00eatre sauvegard\u00e9es dans plusieurs formats.\\n\\nLes jeux de donn\u00e9es pr\u00e9-emball\u00e9s GeoTiff sont bas\u00e9s sur le syst\u00e8me national de r\u00e9f\u00e9rence cartographique du Canada (SNRC) \u00e0 l'\u00e9chelle de 1/250 000; l'index de d\u00e9coupage SNRC est disponible dans la section Ressources de donn\u00e9es dans plusieurs formats.", "published": "2015", "keywords_en": ["Canada", "Earth Sciences", "elevation", "relief", "geomatics", "GeoBase", "CDEM", "DEM", "CDED", "Geographic information systems", "Geomatics", "Earth sciences", "Cartography", "Geography", "Geographic data", "Topography"], "keywords_fr": ["Canada", "Sciences de la Terre", "\u00e9l\u00e9vation", "relief", "g\u00e9omatique", "G\u00e9oBase", "MNEC", "MNE", "DEM", "Syst\u00e8me d'information g\u00e9ographique", "G\u00e9omatique", "Sciences de la terre", "Cartographie", "G\u00e9ographie", "Donn\u00e9es g\u00e9ographiques", "Topographie"], "options": [{"url": 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These technologies enable the rapid and efficient visualization of high-resolution geospatial data and allow for the rapid generation of dynamically derived products. The data is available as Cloud Optimized GeoTIFF (COG) for direct access and as Web Map Services (WMS) or Web Coverage Services (WCS) with a temporal dimension for consumption in Web or GIS applications.  \\n\\nThe NAPL mosaics are made from the best spatial resolution available for each time period, which means that the orthophotos composing a NAPL Time Series are not necessarily coregistrated. For this dataset, the spatial resolutions are: 100 cm for the year 1947 and 50 cm for the year 1967.\\n\\nThe NAPL indexes and stores federal aerial photography for Canada, and maintains a comprehensive historical archive and public reference centre. The Earth Observation Data Management System (EODMS) online application allows clients to search and retrieve metadata for over 3 million out of 6 million air photos.\\n\\nThe EODMS online application enables public and government users to search and order raw Government of Canada Earth Observation images and archived products managed by NRCan such as aerial photos and satellite imagery. To access air photos, you can visit the EODMS web site: https://eodms-sgdot.nrcan-rncan.gc.ca/index-en.html", "description_fr": "Note: Pour visualiser les donn\u00e9es dans l\u2019outil de visualisation, zoomez sur la r\u00e9gion d'int\u00e9r\u00eat.\\n\t\t\t\t  \\nLa Phototh\u00e8que nationale de l'air (PNA) de Ressources naturelles Canada repr\u00e9sente une archive de plus de 6 millions de photographies a\u00e9riennes couvrant l'ensemble du Canada, dont certaines remontent aux ann\u00e9es 1920.\\n\\nCette collection comprend des s\u00e9ries temporelles de mosa\u00efques d'orthophotos a\u00e9riennes pour une s\u00e9lection de grandes villes ou de zones cibl\u00e9es qui permettent d'observer les divers changements survenus au fil du temps dans ces r\u00e9gions.\\n\\nCes mosa\u00efques sont diffus\u00e9es par l'entremise de la plateforme du cube de donn\u00e9es mise en \u0153uvre par RNCan \u00e0 l'aide de technologies de gestion de m\u00e9gadonn\u00e9es g\u00e9ospatiales. Ces technologies permettent la visualisation rapide et efficace de donn\u00e9es g\u00e9ospatiales \u00e0 haute r\u00e9solution et la g\u00e9n\u00e9ration de produits d\u00e9riv\u00e9s de fa\u00e7on dynamique. Les donn\u00e9es sont disponibles en format Cloud Optimized GeoTIFF (COG) pour un acc\u00e8s direct et sous forme de services Web Map Services (WMS) ou Web Coverage Services (WCS) avec une dimension temporelle pour une utilisation dans des applications Web ou SIG.\\n\\nLes mosa\u00efques de la PNA sont r\u00e9alis\u00e9es \u00e0 partir de la meilleure r\u00e9solution spatiale disponible pour chaque p\u00e9riode de temps, ce qui signifie que les orthophotos composant une s\u00e9rie temporelle PNA ne sont pas n\u00e9cessairement align\u00e9es. Pour ce jeu de donn\u00e9es, les r\u00e9solutions spatiales sont : 100 cm pour l'ann\u00e9e 1947 et 50 cm pour l'ann\u00e9e 1967.\\n\\nLa PNA conserve et g\u00e8re les photographies a\u00e9riennes f\u00e9d\u00e9rales pour le Canada, et maintient des archives historiques compl\u00e8tes et un centre de r\u00e9f\u00e9rence public. L'application en ligne du Syst\u00e8me de gestion des donn\u00e9es d'observation de la Terre (SGDOT) permet aux clients de rechercher et d'extraire des m\u00e9tadonn\u00e9es pour plus de 3 millions de photos a\u00e9riennes provenant de cette collection.\\n\\nL'application en ligne SGDOT permet aux utilisateurs publics et gouvernementaux de rechercher et de commander des images brutes d'observation de la Terre du gouvernement du Canada et des produits archiv\u00e9s g\u00e9r\u00e9s par RNCan tels que des photos a\u00e9riennes et des images satellites. 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