Story Map "Swipe" and "Spyglass" is an ArcGIS online application that enables users to interact with two web maps or two layers. The Geospatial Centre uses this application to give a visual comparison between historical airphotos and maps with the present.
The 2016 Enhanced Compressed Wavelets (ECW) imagery was received from the City of Mississauga. Available through both Scholars GeoPortal and the Geospatial Centre the mosaicked imagery has a ground pixel resolution of 15 cm and total file size of 1.33 GB.
The project is a province-wide collaboration, led by the OCUL Geo Community, an open forum for the exchange of information relating to maps and GIS, to digitize and geocode early topographic maps of Ontario at the 1:25000 and 1:63360 scales.
Obtained from the Ontario Ministry of Natural Resources, 2015 Digital Elevation Model (DEM), from the Southwestern Ontario Orthophotography Project (SWOOP). The grid spacing is based on Universal Transverse Mercator (UTM) projection with a raster cell resolution of 2 metres.