Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058.
Most spatial modelling of permafrost distribution and dynamics has been conducted at half-degree latitude/longitude or coarser resolution. Such coarse results are difficult to use for land managers and ecologists. Here we mapped permafrost distribution at 30 m × 30 m resolution for a region in the n...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Authors: | , , , , , , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2012
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e2012-031 http://www.nrcresearchpress.com/doi/full-xml/10.1139/e2012-031 http://www.nrcresearchpress.com/doi/pdf/10.1139/e2012-031 |
id |
crcansciencepubl:10.1139/e2012-031 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/e2012-031 2024-09-15T17:34:49+00:00 Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. Zhang, Yu Li, Junhua Wang, Xiping Chen, Wenjun Sladen, Wendy Dyke, Larry Dredge, Lynda Poitevin, Jean McLennan, Donald Stewart, Heather Kowalchuk, Sheldon Wu, Wanli Kershaw, G. Peter Brook, Ryan K. Burn, Chris R. 2012 http://dx.doi.org/10.1139/e2012-031 http://www.nrcresearchpress.com/doi/full-xml/10.1139/e2012-031 http://www.nrcresearchpress.com/doi/pdf/10.1139/e2012-031 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 49, issue 8, page 925-937 ISSN 0008-4077 1480-3313 journal-article 2012 crcansciencepubl https://doi.org/10.1139/e2012-031 2024-07-11T04:12:02Z Most spatial modelling of permafrost distribution and dynamics has been conducted at half-degree latitude/longitude or coarser resolution. Such coarse results are difficult to use for land managers and ecologists. Here we mapped permafrost distribution at 30 m × 30 m resolution for a region in the northwest Hudson Bay Lowlands using a process-based model. Land-cover types and leaf area indices were derived from Landsat imagery; peat thickness was estimated from elevation based on field measurements; and climate data were interpolated from station observations. The modelled active-layer thickness and permafrost extent compared well with field observations, demonstrating that modelling and mapping permafrost at a high spatial resolution is practical for terrains such as these lowlands. The map portrayed large variations in active-layer thickness, with land-cover type and peat thickness being the most important controlling variables. The modelled active-layer thickness on average increased by 37% during the twentieth century due to increases in air temperature and precipitation, and permafrost disappeared in some southern areas. The spatial scale of the permafrost maps developed in this study is close to that of the ecosystem and landscape features; therefore, the results are useful for land management and ecosystem assessment. Article in Journal/Newspaper Active layer thickness Hudson Bay permafrost Wapusk national park Canadian Science Publishing Canadian Journal of Earth Sciences 49 8 925 937 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Most spatial modelling of permafrost distribution and dynamics has been conducted at half-degree latitude/longitude or coarser resolution. Such coarse results are difficult to use for land managers and ecologists. Here we mapped permafrost distribution at 30 m × 30 m resolution for a region in the northwest Hudson Bay Lowlands using a process-based model. Land-cover types and leaf area indices were derived from Landsat imagery; peat thickness was estimated from elevation based on field measurements; and climate data were interpolated from station observations. The modelled active-layer thickness and permafrost extent compared well with field observations, demonstrating that modelling and mapping permafrost at a high spatial resolution is practical for terrains such as these lowlands. The map portrayed large variations in active-layer thickness, with land-cover type and peat thickness being the most important controlling variables. The modelled active-layer thickness on average increased by 37% during the twentieth century due to increases in air temperature and precipitation, and permafrost disappeared in some southern areas. The spatial scale of the permafrost maps developed in this study is close to that of the ecosystem and landscape features; therefore, the results are useful for land management and ecosystem assessment. |
author2 |
Burn, Chris R. |
format |
Article in Journal/Newspaper |
author |
Zhang, Yu Li, Junhua Wang, Xiping Chen, Wenjun Sladen, Wendy Dyke, Larry Dredge, Lynda Poitevin, Jean McLennan, Donald Stewart, Heather Kowalchuk, Sheldon Wu, Wanli Kershaw, G. Peter Brook, Ryan K. |
spellingShingle |
Zhang, Yu Li, Junhua Wang, Xiping Chen, Wenjun Sladen, Wendy Dyke, Larry Dredge, Lynda Poitevin, Jean McLennan, Donald Stewart, Heather Kowalchuk, Sheldon Wu, Wanli Kershaw, G. Peter Brook, Ryan K. Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. |
author_facet |
Zhang, Yu Li, Junhua Wang, Xiping Chen, Wenjun Sladen, Wendy Dyke, Larry Dredge, Lynda Poitevin, Jean McLennan, Donald Stewart, Heather Kowalchuk, Sheldon Wu, Wanli Kershaw, G. Peter Brook, Ryan K. |
author_sort |
Zhang, Yu |
title |
Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. |
title_short |
Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. |
title_full |
Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. |
title_fullStr |
Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. |
title_full_unstemmed |
Modelling and mapping permafrost at high spatial resolution in Wapusk National Park, Hudson Bay Lowlands 1 This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada. 2 Earth Science Sector Contribution 20110058. |
title_sort |
modelling and mapping permafrost at high spatial resolution in wapusk national park, hudson bay lowlands 1 this article is one of a series of papers published in this cjes special issue on the theme of fundamental and applied research on permafrost in canada. 2 earth science sector contribution 20110058. |
publisher |
Canadian Science Publishing |
publishDate |
2012 |
url |
http://dx.doi.org/10.1139/e2012-031 http://www.nrcresearchpress.com/doi/full-xml/10.1139/e2012-031 http://www.nrcresearchpress.com/doi/pdf/10.1139/e2012-031 |
genre |
Active layer thickness Hudson Bay permafrost Wapusk national park |
genre_facet |
Active layer thickness Hudson Bay permafrost Wapusk national park |
op_source |
Canadian Journal of Earth Sciences volume 49, issue 8, page 925-937 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e2012-031 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
49 |
container_issue |
8 |
container_start_page |
925 |
op_container_end_page |
937 |
_version_ |
1810295423506579456 |