Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series

**ATTENTION! The files in this dataset are designed for streaming, not downloading. For the best experience, please follow the instructions available in the resources.**

In replacement of the former Canadian Digital Elevation Model (CDEM) that is no longer supported, the Medium Resolution Digital Elevation Model (MRDEM) product is a multi-source product that integrates elevation data from the Copernicus DEM** acquired during the TanDEM-X Mission (AIRBUS, 2022), and the High Resolution Digital Elevation Model data derived from airborne lidar. This product provides a complete, 30 meters resolution, nationwide coverage for Canada. It includes a Digital Terrain Model (DTM), a Digital Surface Model (DSM) and other derived products. The spatial coverage extends into the USA, where needed, to provide coverage for cross-border watersheds in support of hydrological studies and applications.

The MRDEM DSM dataset is based on the GLO-30 version of the Copernicus DEM** (hereafter named GLO-30). The process to generate the MRDEM DTM dataset is more complex and involves different sources. Where available, the HRDEM Mosaic derived from lidar was used since it already provides reliable terrain elevation values. The HRDEM Mosaic data used was resampled from 1 meter to 30 meters. Elsewhere, the processing workflow combines a forest removal model and a settlement removal model that is applied to the GLO-30 values in order to estimate the terrain elevation values. Both datasets are projected to Canada Atlas Lambert NAD83 (CSRS) (EPSG:3979).

The MRDEM is referenced to the CGVD2013 which is the reference standard for orthometric heights across Canada.

The product Medium Resolution Digital Elevation Model (MRDEM) is part of the CanElevation Series created in support to the National Elevation Data Strategy implemented by NRCan.

** This product was in part produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014- 2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.

The organisations in charge of the Copernicus program by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30.

Simple

Date ( RI_367 )
2025-03-20
Date ( RI_366 )
2024-06-20
RI_414
  Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector - ( )
Status
onGoing; enContinue RI_596
Maintenance and update frequency
unknown; inconnu RI_543
Keywords ( RI_528 )
  • Digital Elevation Model
  • Digital Surface Model
  • Digital Terrain Model
  • lidar
  • Shaded Relief
  • Aspect Map
  • Color Shaded Relief
  • Slope Map
  • Medium resolution Digital Elevation Model
  • Copernicus
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Digital elevation data
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use limitation
© DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.
Use constraints
copyright; droitAuteur RI_602
Spatial representation type
grid; grille RI_636
Metadata language
fre
Metadata language
eng
Character set
utf8; utf8 RI_458
Topic category
  • Elevation
Begin date
2006
N
S
E
W
thumbnail


Reference system identifier
https://www.epsg-registry.org / EPSG:3979 /
Reference system identifier
https://www.epsg-registry.org / EPSG:4617 /
Reference system identifier
https://www.epsg-registry.org / EPSG:6647 /
Distribution format
  • WMS ( 1.3 )

  • GeoTIF ( Cloud Optimized GeoTIFF )

RI_412
  Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector - ( )
OnLine resource
Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series - Product access guide (English) ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series - Product access guide (French) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
SpatioTemporal Asset Catalog (STAC) Application Programming Interface (API) ( HTTPS )

API;JSON;eng,fra

OnLine resource
DTM GDAL virtual format (VRT) ( HTTPS )

Dataset;other;zxx

OnLine resource
DTM hillshade GDAL virtual format (VRT) ( HTTPS )

Dataset;other;zxx

OnLine resource
DSM GDAL virtual format (VRT) ( HTTPS )

Dataset;other;zxx

OnLine resource
DSM hillshade GDAL virtual format (VRT) ( HTTPS )

Dataset;other;zxx

OnLine resource
MRDEM source GDAL virtual format (VRT) ( HTTPS )

Dataset;other;zxx

OnLine resource
Hillshade map of the Digital Terrain Model ( OGC:WMS )

Web Service;WMS;eng

OnLine resource
Hillshade map of the Digital Terrain Model ( OGC:WMS )

Web Service;WMS;fra

OnLine resource
MRDEM Web Map Service (WMS) ( HTTPS )

Web Service;WMS;eng,fra

OnLine resource
Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series - Product Specifications (English) ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series - Product Specifications (French) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series - Technical specifications (French) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Medium Resolution Digital Elevation Model (MRDEM) - CanElevation Series - Technical specifications (English) ( HTTPS )

Supporting Document;PDF;eng

Hierarchy level
dataset; jeuDonnées RI_622
Description

The MRDEM digital surface model is based on the GLO-30 version of the Copernicus DEM (hereafter named GLO-30). Since elevation values from the GLO-30 are referenced to the EGM2008 geoid model, they were transformed to the Canadian Height Reference System of 2013 (CGVD2013), using the CGG2013 geoid model.

The process to generate the MRDEM digital terrain model is more complex and involves different sources. Where available, the HRDEM Mosaic derived from lidar was used since it already provides reliable terrain elevation values. The HRDEM Mosaic data used was resampled from 1m to 30m. Elsewhere, the processing workflow combines a forest removal model and a settlement removal model that is applied to the GLO-30 values in order to estimate the terrain elevation values.
RI_416
  Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector - ( )
File identifier
18752265-bda3-498c-a4ba-9dfe68cb98da XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-03-18T14:15:36
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Natural Resources Canada; Strategic Policy and Innovation Sector - ( )
 
 

Overviews

overview
Color relief representation

Spatial extent

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Keywords


Provided by

Associated resources

Not available