Dataset guide · 地理遥感与城市

Digital Elevation Model of Canada - Canada3D, 2001

A digital elevation model (DEM) of Canada produced by Natural Resources Canada, derived from CDED at 1:250,000 scale, available at 30 and 300 arc-second resolutions.

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地理遥感与城市Free to access

Key facts

InstitutionNatural Resources Canada
CoverageCanadian landmass
Time span2001 (product release); 2022-01-27 (metadata update)
Scale4 files (two ASCII Grid data files and two PDF product standard documents)
LicenseOpen Government Licence - Canada
AccessDirect FTP download (https://ftp.maps.canada.ca/pub/nrcan_rncan/elevation/canada3d/)

Contents & fields

The dataset includes two DEM files in ASCII Grid format at 30 and 300 arc-second spacing, plus two PDF product standard documents (English and French). Elevation values are in metres relative to MSL, NAD83.

  • can3d30.zip——30 arc-second DEM ASCII Grid
  • can3d300.zip——300 arc-second DEM ASCII Grid
  • norme_canada3d_en.pdf——Product standard in English
  • norme_canada3d_fr.pdf——Product standard in French

Research uses

Suitable for terrain analysis, hydrological modeling, land-use planning, and climate change impact studies across Canada. As a legacy product, it may not meet current government standards.

This card was drafted from the source page; institution, coverage, time span, scale, fields and license are subject to the official page (pending human review).

Keywords

digital elevation modelDEMCanadatopographyASCII GridOpen Government Licence

Access & license

License: License pending verification | Free to access

Why this is hard to get on your own

When obtaining historical DEM data for Canada, one often needs to distinguish between resolutions and note that the product is no longer supported.

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