Permafrost by Ecoregion

The National Ecological Framework for Canada's "Permafrost by Ecoregion” dataset contains tables that provide permafrost information within the ecoregion framework polygon. It provides permafrost codes and their English and French language descriptions as well as information about the percentage of the polygon that the component occupies.

Permafrost is defined as a state of the ground, whether soil or rock, that remains at or below a temperature of 0° C for long periods (NRC, Permafrost Subcommittee, 1988). The minimum period is from one winter, through the following summer, and into the next winter; however, most permafrost has existed for much longer. This formal definition considers only the temperature of the ground, and thus permafrost is a strictly thermal phenomenon, and not a material. At temperatures below 0° C , almost all of the soil moisture occurs in the form of ground ice. Ground ice usually exists at temperature close to its melting point and so is liable to melt if the ground warms. The extent and nature of permafrost, including estimated ice content and typical ground ice forms are derived from the map "Canada - Permafrost" (Natural Resources Canada, 1995).

Simple

Date ( RI_367 )
2013-05-21
Date ( RI_366 )
2013-05-21
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca
Presentation form
mapDigital;carteNumérique RI_391
Status
completed; complété RI_593
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Environment
  • Ecology
  • Terrestrial ecosystems
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
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
Topic category
  • Biota
Begin date
1991-01-01
End date
1999-01-01
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W
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Reference system identifier
http://www.epsg.org / EPSG:3857 / 8.3.4
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca
OnLine resource
Data Product Specification (English) ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Data Product Specification (French) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Pre-packaged FGDB files (Bilingual) ( HTTPS )

Dataset;FGDB/GDB;eng,fra

OnLine resource
Pre-packaged GeoJSON files (Bilingual) ( HTTPS )

Dataset;GEOJSON;eng,fra

OnLine resource
Permafrost by Ecoregion ( ESRI REST: Map Service )

Web Service;ESRI REST;eng

OnLine resource
Pergélisol selon l'écorégion ( ESRI REST: Map Service )

Web Service;ESRI REST;fra

File identifier
d67c3cfc-a6c9-4718-9264-6da6d1dbdf06 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Parent identifier
National Ecological Framework for Canada 3ef8e8a9-8d05-4fea-a8bf-7f5023d2b6e1
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2024-09-09T15:30:11
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; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca
 
 

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Associated resources

Not available