Most downloadable data is priced based on 500m x 500m tiles. For most orthophoto, the cost is $70 per 500m tile, and $150 per 1km tile, with progressive discounts applied automatically for orders grea...
DEM
Elevation Products Specs Overview
Use this chart to compare the elevation mapping options.
How accurate is the elevation data?
In the 2002 Golden Horseshoe data set, the horizontal and vertical accuracy is +/- 40 cm, and +/- 80 cm for the 2002 Simcoe-Kawartha data set. This means that the difference between the true elevation...
Why are there sometimes negative values for elevation in the DEM?
Some tiles have 1000m vertical shift applied, to work with a different global origin. For example, a value of -800m should be considered +200m.
My DEM tiles are just a bunch of lines. How do I use this?
Only elevation information is included, either as DEM or contour, depending on the file you’ve chosen. The road edges frequently appear as break lines in the DEM, giving the appearance of unlabe...
How are contours and DEM different?
The DEM capture was produced from 2002 orthophoto at 1:10,000. It includes elevations on a 40m grid spacing together with break lines along all visible terrain impacting features (road edges, drainage...
How is flood mapping different from other elevation maps?
Other elevation models are simply a record of the elevations across an area. Modeling and flooding predictions made by any agency other than the Conservation Authority are of no regulatory effect. The...
What’s the difference between contours and DEM?
The DEM capture was produced from 2002 orthophoto at 1:10,000. It includes elevations on a 40m grid spacing together with break lines along all visible terrain impacting features (road edges, drainage...
What’s the positional accuracy of the elevation data?
In the 2002 Golden Horseshoe data set, the horizontal and vertical accuracy is +/- 40 cm, and +/- 80 cm for the 2002 Simcoe-Kawartha data set. This means that the difference between the true elevation...
What are the intervals of the contours? Can I get sub-metre intervals?
The contours provided in tiles by FBS on MapWarehouse are in 1m intervals. In any area where high resolution orthophoto is available, it is usually possible to produce a more detailed elevation model....