A model‐based map of ground temperatures for the permafrost regions of Canada
Abstract A functional model of the permafrost‐climate system is applied at national scale, to produce a map of near‐surface ground temperatures in the permafrost regions of Canada. The TTOP model links the temperature at the top of permafrost (TTOP) to the climate through seasonal surface transfer f...
Published in: | Permafrost and Periglacial Processes |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2001
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ppp.399 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.399 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.399 |
id |
crwiley:10.1002/ppp.399 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/ppp.399 2024-09-09T20:02:48+00:00 A model‐based map of ground temperatures for the permafrost regions of Canada Henry, Kerri Smith, Michael 2001 http://dx.doi.org/10.1002/ppp.399 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.399 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.399 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 12, issue 4, page 389-398 ISSN 1045-6740 1099-1530 journal-article 2001 crwiley https://doi.org/10.1002/ppp.399 2024-08-06T04:18:01Z Abstract A functional model of the permafrost‐climate system is applied at national scale, to produce a map of near‐surface ground temperatures in the permafrost regions of Canada. The TTOP model links the temperature at the top of permafrost (TTOP) to the climate through seasonal surface transfer functions and subsurface thermal properties. The parameters in the model were compiled at national scale for Canada, although the topographic effects of the Western Cordillera were not incorporated into the analysis. The objective of the study was accomplished by implementing the TTOP model within a Geographical Information System. The TTOP map is evaluated against the published Ground Temperature Map of Canada. The published map shows ground temperatures according to a scale of temperature classes, so TTOP values were categorized into the same classes. Across the permafrost regions of Canada, 72.1% of the area is in the same class in both maps, while 27.7% differs by one temperature class. Only 0.2% of the area differs by two temperature classes. The results suggest that the TTOP model can provide a rational and functional basis for relating near‐surface permafrost temperature and climate at national and regional scales. The model could be applied to the assessment of climate change impacts on the magnitude and distribution of permafrost temperatures. Copyright © 2001 John Wiley & Sons, Ltd. Article in Journal/Newspaper permafrost Permafrost and Periglacial Processes Wiley Online Library Canada Permafrost and Periglacial Processes 12 4 389 398 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract A functional model of the permafrost‐climate system is applied at national scale, to produce a map of near‐surface ground temperatures in the permafrost regions of Canada. The TTOP model links the temperature at the top of permafrost (TTOP) to the climate through seasonal surface transfer functions and subsurface thermal properties. The parameters in the model were compiled at national scale for Canada, although the topographic effects of the Western Cordillera were not incorporated into the analysis. The objective of the study was accomplished by implementing the TTOP model within a Geographical Information System. The TTOP map is evaluated against the published Ground Temperature Map of Canada. The published map shows ground temperatures according to a scale of temperature classes, so TTOP values were categorized into the same classes. Across the permafrost regions of Canada, 72.1% of the area is in the same class in both maps, while 27.7% differs by one temperature class. Only 0.2% of the area differs by two temperature classes. The results suggest that the TTOP model can provide a rational and functional basis for relating near‐surface permafrost temperature and climate at national and regional scales. The model could be applied to the assessment of climate change impacts on the magnitude and distribution of permafrost temperatures. Copyright © 2001 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Henry, Kerri Smith, Michael |
spellingShingle |
Henry, Kerri Smith, Michael A model‐based map of ground temperatures for the permafrost regions of Canada |
author_facet |
Henry, Kerri Smith, Michael |
author_sort |
Henry, Kerri |
title |
A model‐based map of ground temperatures for the permafrost regions of Canada |
title_short |
A model‐based map of ground temperatures for the permafrost regions of Canada |
title_full |
A model‐based map of ground temperatures for the permafrost regions of Canada |
title_fullStr |
A model‐based map of ground temperatures for the permafrost regions of Canada |
title_full_unstemmed |
A model‐based map of ground temperatures for the permafrost regions of Canada |
title_sort |
model‐based map of ground temperatures for the permafrost regions of canada |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1002/ppp.399 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.399 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.399 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
permafrost Permafrost and Periglacial Processes |
genre_facet |
permafrost Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 12, issue 4, page 389-398 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.399 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
12 |
container_issue |
4 |
container_start_page |
389 |
op_container_end_page |
398 |
_version_ |
1809934714316783616 |