Description

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.

Resources

Name	Format	Description	Link
Customized files and derived products in GeoTIFF format (Geospatial-Data Extraction tool)	Unknown		https://cartes.canada.ca/czs/index-fr.html
Canadian Digital Surface Model, Color Shaded Relief	WMS		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
Cloud Optimized GeoTIFF of the CDSM	Unknown		https://datacube-prod-data-public.s3.ca-central-1.amazonaws.com/store/elevation/cdem-cdsm/cdsm/cdsm-canada-dem.tif
Cloud Optimized GeoTIFF of the CDSM hillshade	Unknown		https://datacube-prod-data-public.s3.ca-central-1.amazonaws.com/store/elevation/cdem-cdsm/cdsm/cdsm-canada-hillshade.tif
Download directory for pre-assembled GeoTIFF files	Unknown		https://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/
Canadian Digital Surface Model - Product Specifications	PDF		https://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/doc/CDSM_product_specs.pdf
Canadian Digital Surface Model - Product Specifications	PDF		https://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)	Unknown		https://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/cdsm_mnsc/index/cdsm_index_50k.kmz
Customized files and derived products in ASCII Grid format (Geospatial-Data Extraction tool)	Unknown		https://maps.canada.ca/czs/index-en.html
Customized files and derived products in GeoTIFF format (Geospatial-Data Extraction tool)	Unknown		https://maps.canada.ca/czs/index-en.html
Customized files and derived products in ASCII Grid format (Geospatial-Data Extraction tool)	Unknown		https://maps.canada.ca/czs/index-fr.html
Canadian Digital Surface Model, Color Shaded Relief	WMS		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
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
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
Documentation on the use of the Elevation API	HTML		https://www.nrcan.gc.ca/earth-sciences/geography/topographic-information/web-services/elevation-api/17328
Documentation on the use of the Elevation API	HTML		https://www.nrcan.gc.ca/earth-sciences/geography/topographic-information/web-services/elevation-api/17328

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