In the southern part of the country (south of the productive forest line), DTM and DSM datasets are generated from airborne LiDAR data. For DTM datasets, derived data available are slope, aspect, shaded relief, color relief and color shaded relief maps and for DSM datasets, derived data available are shaded relief, color relief and color shaded relief maps. HRDEM includes a Digital Terrain Model (DTM), a Digital Surface Model (DSM) and other derived data. High Resolution Digital Elevation Model (HRDEM) The most popular products available from include: CanVecĬanVec contains more than 60 topographic features classes organized into 8 themes: Transport Features, Administrative Features, Hydro Features, Land Features, Manmade Features, Elevation Features, Resource Management Features and Toponymic Features. The Geospatial product index is the best tool to download raster data (topographic maps) vector data (CanVec, hydrography road and rail networks, land cover) elevation data (various elevation models invlusind the HRDEM ) and imagery (orthoimages and satellite images). NOTE: an easy way to identify the geographic area you are interested in along with its National Topographic System (NTS) code is through the Geospatial Data Extraction Tool. Under "Overlay reference layers", choose the National Tiling System Grid Coverage. Search can be done by using various interactive tools or by browsing a directory of products. A web portal that allows users to explore and download, without charge, geospatial data and maps of Canada.
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