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Canadian Digital Surface Model, 2000 This is a legacy product that is no longer supported. It may not meet current government standards. The Canadian Digital Surface Model (CDSM) is part of Natural Resources Canada's altimetry system designed to better meet the users' needs for elevation data and products. The 0.75-second (~20 m) CDSM consists of a derived product from the original 1-second (30 m) Shuttle Radar Topographic Mission (SRTM) digital surface model (DSM). In these data, the elevations are captured at the top of buildings, trees, structures, and other objects rather than at ground level. A CDSM mosaic can be obtained for a pre-defined or user-defined extent. The coverage and resolution of a mosaic varies according to the extent of the requested area. Derived 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. The pre-packaged GeoTiff datasets are based on the National Topographic System of Canada (NTS) at the 1:50 000 scale; the NTS index file is available in the Resources section in many formats. 2019-10-03 Natural Resources Canada geoinfo@canada.ca Form DescriptorsCanadaEarth ScienceselevationreliefgeomaticsGeoBaseCDSMDEMEarth sciencesCartographyGeographyGeographic dataGeographic information systemsGeomaticsTopography Canadian Digital Surface Model, Color Shaded ReliefWMS https://maps.geogratis.gc.ca/wms/elevation_en?service=WMS&version=1.3.0&request=GetCapabilities&layers=cdsm.color-shaded-relief&legend_format=image/png&feature_info_type=text/html Canadian Digital Surface Model, Color Shaded ReliefWMS https://cartes.geogratis.gc.ca/wms/elevation_fr?service=WMS&version=1.3.0&request=GetCapabilities&layers=cdsm.color-shaded-relief&legend_format=image/png&feature_info_type=text/html Customized files and derived products in GeoTIFF format (Geospatial-Data Extraction tool)GeoTIF https://maps.canada.ca/czs/index-en.html Customized files and derived products in ASCII Grid format (Geospatial-Data Extraction tool)ASCII Grid https://maps.canada.ca/czs/index-fr.html Download directory for pre-assembled GeoTIFF filesGeoTIF http://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/ Canadian Digital Surface Model - Product SpecificationsPDF http://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/doc/MNSC_specs_produit.pdf CDSM product index (drag and drop the kmz file in Google Earth to localize your region of interest)KMZ http://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/index/cdsm_index_50k.kmz Canadian Digital Surface Model - Product SpecificationsPDF http://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/doc/CDSM_product_specs.pdf NTS Index (Use to identify the number of your area of interest)HTML https://ouvert.canada.ca/data/fr/dataset/055919c2-101e-4329-bfd7-1d0c333c0e62 NTS index (Use to identify the number of your area of interest)HTML https://open.canada.ca/data/en/dataset/055919c2-101e-4329-bfd7-1d0c333c0e62 Customized files and derived products in GeoTIFF format (Geospatial-Data Extraction tool)GeoTIF https://cartes.canada.ca/czs/index-fr.html Customized files and derived products in ASCII Grid format (Geospatial-Data Extraction tool)ASCII Grid https://maps.canada.ca/czs/index-en.html Documentation on the use of the Elevation APIHTML https://www.nrcan.gc.ca/earth-sciences/geography/topographic-information/web-services/elevation-api/17328 Documentation on the use of the Elevation APIHTML https://www.nrcan.gc.ca/earth-sciences/geography/topographic-information/web-services/elevation-api/17328

Canadian Digital Surface Model, 2000

This is a legacy product that is no longer supported. It may not meet current government standards.

The Canadian Digital Surface Model (CDSM) is part of Natural Resources Canada's altimetry system designed to better meet the users' needs for elevation data and products. The 0.75-second (~20 m) CDSM consists of a derived product from the original 1-second (30 m) Shuttle Radar Topographic Mission (SRTM) digital surface model (DSM). In these data, the elevations are captured at the top of buildings, trees, structures, and other objects rather than at ground level.

A CDSM mosaic can be obtained for a pre-defined or user-defined extent. The coverage and resolution of a mosaic varies according to the extent of the requested area.

Derived 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.

The pre-packaged GeoTiff datasets are based on the National Topographic System of Canada (NTS) at the 1:50 000 scale; the NTS index file is available in the Resources section in many formats.

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Resources

Resource Name Resource Type Format Language Links
Canadian Digital Surface Model, Color Shaded Relief Web Service WMS English Access
Canadian Digital Surface Model, Color Shaded Relief Web Service WMS French Access
Customized files and derived products in GeoTIFF format (Geospatial-Data Extraction tool) Dataset GeoTIF English Access
Customized files and derived products in ASCII Grid format (Geospatial-Data Extraction tool) Dataset ASCII Grid French Access
Download directory for pre-assembled GeoTIFF files Dataset GeoTIF English
French
Access
Canadian Digital Surface Model - Product Specifications Guide PDF French Access
CDSM product index (drag and drop the kmz file in Google Earth to localize your region of interest) Guide KMZ English
French
Access
Canadian Digital Surface Model - Product Specifications Guide PDF English Access
NTS Index (Use to identify the number of your area of interest) Guide HTML French Access
NTS index (Use to identify the number of your area of interest) Guide HTML English Access
Customized files and derived products in GeoTIFF format (Geospatial-Data Extraction tool) Dataset GeoTIF French Access
Customized files and derived products in ASCII Grid format (Geospatial-Data Extraction tool) Dataset ASCII Grid English Access
Documentation on the use of the Elevation API Guide HTML English Access
Documentation on the use of the Elevation API Guide HTML French Access

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Contact Information

Electronic Mail Address: geoinfo@canada.ca

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