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...
I’m using the data for academic, research, or non-commercial purposes. Do you offer educational-use licensing or discounts?
For FBS’s own products such as orthophoto and elevation models, we may be able to provide such a discount. Call us to discuss what you’re planning to do. Partner data such as Teranet parce...
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 spectral bands are available?
Each sensor vehicle captures imagery with slightly different spectral ranges and capabilities. Imagery can be ordered as panchromatic (grayscale), natural colour (R-G-B), false colour infrared (IR-R-G...
How accurate is flood plain mapping?
The information shown on this map series is subject to change. The volume of water introduced into a regional drainage system from rain and snow melt can vary wildly between different points in the sy...
Is orthophoto different from aerial photo?
Yes. Orthophoto is produced by manipulating aerial photo to correct for movement of the aircraft and variations in the camera angle. Orthophoto has a top-down perspective and uniform scale, just like ...
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’s floodplain mapping?
Floodplain mapping defines the limits of the Regulatory Floodplain for a particular watershed, used for regulatory purposes. These maps are produced and maintained by the TRCA (Toronto and Region Cons...
How do I order custom satellite imagery from FBS?
First Base Solutions is a licensed reseller of DigitalGlobe and Planet Labs satellite imagery. We have access to search a library of historical satellite imagery with worldwide coverage at 50cm and 60...
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....