High Resolution Digital Elevation Model Mosaic (HRDEM Mosaic) - CanElevation Series
The High Resolution Digital Elevation Model Mosaic provides a unique and continuous representation of the high resolution elevation data available across the country. 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.
Unlike 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) and Web Coverage Services (WCS). Accessible data includes the Digital Terrain Model (DTM), the Digital Surface Model (DSM) and derived products such as shaded relief, slope and aspect.
The mosaic is referenced to the Canadian Height Reference System 2013 (CGVD2013) which is the reference standard for orthometric heights across Canada.
Source data for HRDEM datasets used to create the mosaic is acquired through multiple projects with different partners.
Collaboration is a key factor to the success of the National Elevation Strategy. Refer to the “Supporting Document” section to access the list of the different partners including links to their respective data.
- Publisher - Current Organization Name: Natural Resources Canada
- Licence: Open Government Licence - Canada
Data and Resources
HRDEM Mosaic Web Map Service (WMS)WMSNo linguistic content; Not applicable web_service WMS
HRDEM Mosaic Web Coverage Service (WCS)WCSNo linguistic content; Not applicable web_service WCS
HRDEM Mosaic DSM MetadataFGDB/GDBEnglish French dataset FGDB/GDB
HRDEM Mosaic DTM MetadataFGDB/GDBEnglish French dataset FGDB/GDB
HRDEM Mosaic Product Viewer (English)HTMLEnglish application HTML
HRDEM Mosaic Product Viewer (French)HTMLFrench application HTML
High Resolution Digital Elevation Model Mosaic (HRDEM Mosaic) - CanElevation Series - Product Specifications (English)PDFEnglish guide PDF
High Resolution Digital Elevation Model Mosaic (HRDEM Mosaic) - CanElevation Series - Product Specifications (French)PDFFrench guide PDF
HRDEM Mosaic Hillshade DSM (English)WMSEnglish web_service WMS
HRDEM Mosaic Hillshade DSM (French)WMSFrench web_service WMS
|High Resolution Digital Elevation Model Mosaic (HRDEM Mosaic) - CanElevation Series|
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