Level curves with an equidistance of 1 m derived from a lidar survey conducted in 2015.attributes:ID - Unique identifierSubtype - Master (1) or secondary (2) level curve SCORE - Elevation value (m) The product High Resolution Digital Elevation Model (MNEHR) is available on the Open Government website.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

The joint Natural Resources Canada/Department of Fisheries and Oceans Marine Spatial Planning Program requires the highest resolution marine based bathymetric elevation data and adjacent land based topographic elevation data that are available. This digital elevation model of Canada's west coast compiles the best data available from multiple government agencies to create a regional model gridded at 10 meter spacing. The transitions between the marine and terrestrial areas are seamless creating a continuous surface of elevations for scientific research and mapping.

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), Web Coverage Services (WCS) and SpatioTemporal Asset Catalog (STAC) collections. Accessible data includes the Digital Terrain Model (DTM), the Digital Surface Model (DSM) and derived products such as shaded relief and slope.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.

The High Resolution Digital Elevation Model (HRDEM) Mosaic represents the current and continous coverage of high-resolution elevation data available in Canada. This version of the mosaic, available at a spatial resolution of 2 meters, is a combination of DEM data from airborne LiDAR (mainly in the south) and satellite imagery (in the north). This data collection includes a digital surface model (DSM) available for the entire coverage, and a digital terrain model (DTM) available only where LiDAR data coverage exists. The mosaic product is referenced to the Canadian Geodetic Vertical Datum 2013 (CGVD2013). The data in this collection have been reprojected from the source reference system to the Canada Atlas Lambert projection (EPSG:3979). In case of overlap between data sources, pixel values are set according to the most recent source. **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**

**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.

The High Resolution Digital Elevation Model (HRDEM) Mosaic represents the current and continous coverage of high-resolution elevation data available in Canada. This version of the mosaic, available at a spatial resolution of 2 meters, is a combination of DEM data from airborne LiDAR (mainly in the south) and satellite imagery (in the north). This data collection includes a digital surface model (DSM) available for the entire coverage, and a digital terrain model (DTM) available only where LiDAR data coverage exists. The mosaic product is referenced to the Canadian Geodetic Vertical Datum 2013 (CGVD2013). The data in this collection have been reprojected from the source reference system to the Canada Atlas Lambert projection (EPSG:3979). In case of overlap between data sources, pixel values are set according to the most recent source. **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**

The High Resolution Digital Elevation Model (HRDEM) Mosaic represents the current and continous coverage of high-resolution elevation data available in Canada. This version of the mosaic, available at a spatial resolution of 2 meters, is a combination of DEM data from airborne LiDAR (mainly in the south) and satellite imagery (in the north). This data collection includes a digital surface model (DSM) available for the entire coverage, and a digital terrain model (DTM) available only where LiDAR data coverage exists. The mosaic product is referenced to the Canadian Geodetic Vertical Datum 2013 (CGVD2013). The data in this collection have been reprojected from the source reference system to the Canada Atlas Lambert projection (EPSG:3979). In case of overlap between data sources, pixel values are set according to the most recent source. **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**

The High Resolution Digital Elevation Model (HRDEM) Mosaic represents the current and continous coverage of high-resolution elevation data available in Canada. This version of the mosaic, available at a spatial resolution of 2 meters, is a combination of DEM data from airborne LiDAR (mainly in the south) and satellite imagery (in the north). This data collection includes a digital surface model (DSM) available for the entire coverage, and a digital terrain model (DTM) available only where LiDAR data coverage exists. The mosaic product is referenced to the Canadian Geodetic Vertical Datum 2013 (CGVD2013). The data in this collection have been reprojected from the source reference system to the Canada Atlas Lambert projection (EPSG:3979). In case of overlap between data sources, pixel values are set according to the most recent source. **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**

The High Resolution Digital Elevation Model (HRDEM) Mosaic represents the current and continous coverage of high-resolution elevation data available in Canada. This version of the mosaic, available at a spatial resolution of 2 meters, is a combination of DEM data from airborne LiDAR (mainly in the south) and satellite imagery (in the north). This data collection includes a digital surface model (DSM) available for the entire coverage, and a digital terrain model (DTM) available only where LiDAR data coverage exists. The mosaic product is referenced to the Canadian Geodetic Vertical Datum 2013 (CGVD2013). The data in this collection have been reprojected from the source reference system to the Canada Atlas Lambert projection (EPSG:3979). In case of overlap between data sources, pixel values are set according to the most recent source. **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**

High-Resolution Digital Elevation Model (HRDEM) generated from LiDAR. This data collection includes a Digital Terrain Model (DTM) and a Digital Surface Model (DSM). The HRDEM product is referenced to the Canadian Geodetic Vertical Datum of 2013 (CGVD2013). Source data for HRDEM datasets is acquired through multiple projects with different partners. Since data is being acquired by project, there is no integration or edgematching done between projects. The data in this collection have been reprojected from the source reference system to the Canada Atlas Lambert projection (EPSG:3979). **This third party metadata element follows the Spatio Temporal Asset Catalog (STAC) specification.**