Leave the polygon extent as it has already set to the Toronto boundary. In the "Select options and submit job" tab, select " Canadian Digital Elevation Model". In the " Select data to be extracted" tab, select " Elevation". After you check this box, the Map Navigation should highlight the selected area in yellow. Then, make sure you set the clipping area to the " Current Map Extent". Choose the " Toronto, York, Ontario - City" option and zoom to this selection on the map. In the "Find a location" tab, search for "Toronto".
DEFINE RASTER DOWNLOAD
Links to some alternative sources to download DEM are at the end of this tutorial. This tutorial will lead you to download the raster dataset from Government of Canada's Geospatial Data from this website. There are multiple sources that you can retrieve Digital Elevation Models. You can find a more detailed explanation of DEM here: … Step 1 - Download the DEM dataset.įirst, download the Digital Elevation Model. Digital Eleveation Model is a raster dataset represents the surface of elevations. In this tutorial, we will be working with the Digital Elevation Model (DEM) from Government of Canada's Geospatial Data, as well as the City of Toronto Former Municipality Boundaries file from City of Toronto Open Data Catalogue. It could be defined by a boundary from a vector shapefile, or it could be defined by the extent of the window. Step 3 - Setting up a working directory and establish folder connectionĬlipping rasters allows you to only work on or display a certain area of interest.Step 2 - Download City of Toronto boundary file.
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