03-21-2018, 03:48 PM
(03-21-2018, 01:13 PM)Canard Wrote: Re: Imagery; this is awesome! Full installation at the OMSF now, too! What's the deal with this site vs. Google Maps? I had always just assumed there was only one "Satelite Camera" gathering all this data for public, is that not the case?
Imagery is purchased, sold, and licensed in various terms to various parties at various times. Satellites might take some of it, and airplanes might be used for other parts. I had a lot of fun fiddling around with the base layers in the Region's GIS to see old aerial photography of the region, before they inexplicably removed it (probably when they switched to the newer http://maps.waterloo.ca front-end)
This particular dataset is "World Imagery" which has 30cm resolution in most of North America: https://services.arcgisonline.com/ArcGIS...apServer/3
At this resolution it's definitely aerial imagery. Satellite imagery is usually above 1m resolution.