GeoAI - Change detection use case - Québec City

Temporal analysis of changes in Quebec city based on GeoAI features automatically extracted from satellite images acquired in 2006 and 2022. Simple geospatial analysis enables the detection of features present in 2022 that were not already there in 2006. The addition of new buildings is a good indicator of urban development and/or sprawl.

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GeoAI enables temporal coverage of various areas in Canada, thus providing a useful tool for change detection and trend analysis at high resolution. While the series is still fairly new, and such examples are limited for the time being, NRCan strives to gradually increase its GeoAI data offering for both spatial and temporal coverage.

For more information about the GeoAI - GeoBase Series, please visit the following link: https://open.canada.ca/data/en/dataset/74738ff5-5367-5958-9aee-98fffdcd1876

Simple

Date ( RI_366 )
2026-05
Date ( RI_367 )
2026-05
RI_414
  Government of Canada; Natural Resources Canada; Geoscience and Earth Monitoring Sector
Status
completed; complété RI_593
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
Keywords ( RI_524 )
  • Earth Sciences
Keywords ( RI_529 )
  • GeoBase
  • GeoAI
Keywords ( RI_528 )
  • Artificial intelligence
  • Automatic Extraction
  • Change detection
  • Buildings
  • Ville de Québec
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Geographic data
  • Artificial intelligence
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
eng; CAN
Metadata language
fra; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Imagery base maps earth cover
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S
E
W
thumbnail


Begin date
2006
Reference system identifier
https://www.epsg-registry.org / EPSG:4617 /
Distribution format
  • ESRI REST ( 10.8.1 )

RI_412
  Government of Canada; Natural Resources Canada; Geoscience and Earth Monitoring Sector
OnLine resource
GeoAI - Change detection use case - Calgary ( ESRI REST: Map Server )

Web Service;ESRI REST;fra

OnLine resource
GeoAI - Change detection use case - Calgary ( ESRI REST: Map Server )

Web Service;ESRI REST;eng

File identifier
4026720e-f7fb-478e-a58f-c62ebe20005d XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Parent identifier
GeoAI - GeoBase Series 74738ff5-5367-5958-9aee-98fffdcd1876
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2026-05-27T09:13:49
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Natural Resources Canada; Geoscience and Earth Monitoring Sector
 
 

Overviews

overview
Qu%C3%A9bec.png

Spatial extent

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S
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thumbnail


Keywords


Provided by

Associated resources

Not available