Blog

City of Toronto Lidar (2015) Updated

Monday, January 11, 2021 by Eva Dodsworth

The Geospatial Centre has acquired additional coverage of Lidar 2015 data, going as far east as Scarborough.

The 1 km x 1 km tiled data was collected April 2015 with an average flying height above ground of 1,300 metres (m) producing a Horizontal Accuracy, 95% or 2σ: 30 cm and a Fundamental Vertical Accuracy (on flat hard surfaces), 95% or 2σ: 10 cm.

Total file size is 78 gigs.

City of Kitchener: Land use joined with parcels (2020)

Friday, November 13, 2020 by Jonathan Morgan

Received from the City of Kitchener, land use joined with parcel data. Land use categories include: agricultural, commercial, industrial, institutional, mixed use, open space, recreational, residential, row and utility.

Soil Survey Complex data update (2003)

Thursday, November 12, 2020 by Jonathan Morgan

Soil Survey Complex data update (2003) from the Ontario Ministry of Agriculture, Food and Rural Affairs.

Ontario Geological Survey: quaternary geology (1997)

Wednesday, November 11, 2020 by Jonathan Morgan

Quaternary geology data update (1997) from the Ontario Geological Survey.

ArcGIS Online: mapping without limits (2020 tutorial)

Wednesday, October 21, 2020 by Jonathan Morgan

ArcGIS Online is a web-based mapping and app-building site created by Esri, one of world's leaders in GIS software. In an effort to empower users of all levels to create interactive maps and applications that are easy to share, Esri developed ArcGIS Online (commonly called AGOL) platform to realize its vision. With both a free version for lay users and an organizational account for larger enterprises, the functionality is tailored to different mapping and application needs.

Google Earth Pro (2020 tutorial)

Friday, October 9, 2020 by Jonathan Morgan

As of early 2015, Google Earth Pro, which used to be a $400 product, is now free. This is a simple yet powerful tool for viewing information geographically—whether it is for viewing climate information, analyzing change over time, or tracing routes from your vacation.

Digital Raster Acquisition Project for the East (DRAPE) imagery (2019)

Thursday, October 8, 2020 by Jonathan Morgan

Received from Land Information Ontario (LIO), 2019 imagery for the Digital Raster Acquisition Project for the East (DRAPE). These orthorectified images have been captured from aircraft because of the ability to obtain high resolution products over a large area. Orthophotos are captured during spring under the best conditions possible to achieve cloud free, snow free, ice free, smoke free, and leaf off conditions.

Getting started with QGIS version 3.10.9 (2020 tutorial)

Thursday, October 8, 2020 by Jonathan Morgan

Quantum GIS, often referred to as QGIS, is an open source GIS desktop application, which can be installed on various system operation platforms, including Windows, Mac OS X, GNU/Linux, FreeBSD (and soon, Android!). More importantly, QGIS is free open-source software and offers numerous plugins for various functions. Since the software is open-source, there is abundant documentation submitted by web community support workers and voluntary developers. This tutorial introduces users to the basic concepts and major functions of QGIS to get them started with the software.