DMTI Digital Elevation Models (DEMs)
DMTI's Digital Elevation Models (DEMs) are 3-dimensional raster data tiles which capture terrain elevation and cover areas within the provinces of British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia and Newfoundland. DMTI's DEMs have been tiled by National Topographic Series (NTS) map boundaries and may be requested by NTS sheet number (example 40P/3 for 1:50,000 scale or 40P for 1:250,000 scale).
Coordinate system: UTM - NAD 83, Zones 9 to 22
Source format: ESRI Shapefiles and ASCII text tables (ArcGIS/ArcView)
Pixel Resolution: 30 metres (1:50,000) and 90 metres (1:250,000)
Released: 2002-2003
Additional Support: Finding, Converting, and Mosaicking DEMs
Restrictions on Access
This resource is available to University of Western Ontario students, faculty and staff for academic, research or personal reasons. Patrons will be required to present a valid UWO ID card and sign a release form when requesting the data. Data must be requested in person at the Map and Data Centre Reference desk. This data resource has been made available to Canadian educational institutions through subscription to DMTI's SMART program.
Data Manipulation / Usage
The Map and Data Centre has 2 GIS workstations equipped with ArcGIS 10.0 and other software to explore/manipulate the data. UWO users may also copy requested resources to a data storage device (ex. USB flash drive, CD-R) for research or teaching use outside of the library. DMTI Spatial Inc. must be cited in any maps or graphics generated.
Sample View of the Data
DEM with Hillshade and Water Layer Overlay - Pinecone Burke Provincial Park Area, British Columbia
Sample Citation
DMTI Digital Elevation Model (DEM). [computer file]. Markham, Ontario: DMTI Spatial Inc., 2003.
