accuracy

Teranet Parcels For CAD & GIS

Ordering Ontario Teranet parcel online or through us – how to get what you want faster. In Ontario, parcel mapping defining the boundaries of each property is maintained by Teranet. First Base S...

What’s the horizontal error of the orthophoto

It depends on the photo resolution. Whatever the stated photo resolution in cm, positional accuracy is double that value. A 15 cm photo, for example, has positional horizontal accuracy of +/- 30 cm. T...

The property lines don’t match the image below.

The orthophoto are generally spatially accurate to double the resolution value. Simply put, if a photo has resolution of 20cm, any point on the photo will be accurate within 40 cm of its true location...

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...

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...

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...