The York University Library orthophoto collection focuses on the Southern Ontario region. A digital orthophoto is an air photo that has been orthorectified or corrected, so that the scale is uniform and there is no distortion. Orthophotos can be used and manipulated in GIS software, such as ArcGIS. In addition, they can be viewed in a image viewing software such as Adobe Photoshop. Orthophotos generally cover a small area, from 0.5km² to 10km².
All digital orthophotos in the York University collection are available to members of the York University community only, for research and academic purposes. The majority of our orthophotos can be downloaded via Scholars Geoportal.
Downloading Orthophotos via Scholars Geoportal
Ordering Orthophotos via GAIA
There are several series of orthophotos that are not available via Scholars Geoportal. These orthophotos are only available to researchers and students affiliated with York University.
Year | Title | Area | Resolution (cm) | Details |
---|---|---|---|---|
2023 | Orthophotos of City of Toronto | City of Toronto | 8 | This series will be available online via Scholars Geoportal in October 2024. If you need access prior to then, please email gis.lib@yorku.ca |
2008 | Orthophotos of Southern Ontario (First Base Solutions) - Essex | Essex County | 10 | [Metadata] [Index Map] |
2003 | City of Toronto Orthophotos (City of Toronto Survey and Mapping Services) | City of Toronto | 7.5 | [Metadata] [Index Map] |
2002 | Orthophotos of Southern Ontario (First Base Solutions) - Lambton | Lambton County | 20 | [Metadata] [Index Map] |
1999 | Colour digital orthophotos of the Greater Toronto Area (Triathlon Mapping Corporation) | GTA | 50 | [Metadata] |
1997 | City of Toronto Orthophotos – Black and white. (Land Information Toronto) | City of Toronto | 100 | [Metadata]. |
1995 | Digital Orthophotos of the Greater Toronto Area (Triathlon) | GTA | 100 | For more information contact gislib@yorku.ca. |