Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach
Permafrost temperatures are increasing in Alaska due to climate change and in some cases permafrost is thawing and degrading. In areas where degradation has already occurred the effects can be dramatic, resulting in changing ecosystems, carbon release, and damage to infrastructure. However, in many...
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Copernicus Publications
2016
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Online Access: | https://doi.org/10.5194/tc-10-2517-2016 https://www.the-cryosphere.net/10/2517/2016/tc-10-2517-2016.pdf https://doaj.org/article/18093a4a798a48ef8ac67aa9810e4f12 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:18093a4a798a48ef8ac67aa9810e4f12 2023-05-15T17:55:34+02:00 Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach W. L. Cable V. E. Romanovsky M. T. Jorgenson 2016-10-01 https://doi.org/10.5194/tc-10-2517-2016 https://www.the-cryosphere.net/10/2517/2016/tc-10-2517-2016.pdf https://doaj.org/article/18093a4a798a48ef8ac67aa9810e4f12 en eng Copernicus Publications doi:10.5194/tc-10-2517-2016 1994-0416 1994-0424 https://www.the-cryosphere.net/10/2517/2016/tc-10-2517-2016.pdf https://doaj.org/article/18093a4a798a48ef8ac67aa9810e4f12 undefined The Cryosphere, Vol 10, Pp 2517-2532 (2016) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2016 fttriple https://doi.org/10.5194/tc-10-2517-2016 2023-01-22T19:13:34Z Permafrost temperatures are increasing in Alaska due to climate change and in some cases permafrost is thawing and degrading. In areas where degradation has already occurred the effects can be dramatic, resulting in changing ecosystems, carbon release, and damage to infrastructure. However, in many areas we lack baseline data, such as subsurface temperatures, needed to assess future changes and potential risk areas. Besides climate, the physical properties of the vegetation cover and subsurface material have a major influence on the thermal state of permafrost. These properties are often directly related to the type of ecosystem overlaying permafrost. In this paper we demonstrate that classifying the landscape into general ecotypes is an effective way to scale up permafrost thermal data collected from field monitoring sites. Additionally, we find that within some ecotypes the absence of a moss layer is indicative of the absence of near-surface permafrost. As a proof of concept, we used the ground temperature data collected from the field sites to recode an ecotype land cover map into a map of mean annual ground temperature ranges at 1 m depth based on analysis and clustering of observed thermal regimes. The map should be useful for decision making with respect to land use and understanding how the landscape might change under future climate scenarios. Article in Journal/Newspaper permafrost The Cryosphere Alaska Unknown The Cryosphere 10 5 2517 2532 |
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geo envir W. L. Cable V. E. Romanovsky M. T. Jorgenson Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
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geo envir |
description |
Permafrost temperatures are increasing in Alaska due to climate change and in some cases permafrost is thawing and degrading. In areas where degradation has already occurred the effects can be dramatic, resulting in changing ecosystems, carbon release, and damage to infrastructure. However, in many areas we lack baseline data, such as subsurface temperatures, needed to assess future changes and potential risk areas. Besides climate, the physical properties of the vegetation cover and subsurface material have a major influence on the thermal state of permafrost. These properties are often directly related to the type of ecosystem overlaying permafrost. In this paper we demonstrate that classifying the landscape into general ecotypes is an effective way to scale up permafrost thermal data collected from field monitoring sites. Additionally, we find that within some ecotypes the absence of a moss layer is indicative of the absence of near-surface permafrost. As a proof of concept, we used the ground temperature data collected from the field sites to recode an ecotype land cover map into a map of mean annual ground temperature ranges at 1 m depth based on analysis and clustering of observed thermal regimes. The map should be useful for decision making with respect to land use and understanding how the landscape might change under future climate scenarios. |
format |
Article in Journal/Newspaper |
author |
W. L. Cable V. E. Romanovsky M. T. Jorgenson |
author_facet |
W. L. Cable V. E. Romanovsky M. T. Jorgenson |
author_sort |
W. L. Cable |
title |
Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
title_short |
Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
title_full |
Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
title_fullStr |
Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
title_full_unstemmed |
Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
title_sort |
scaling-up permafrost thermal measurements in western alaska using an ecotype approach |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/tc-10-2517-2016 https://www.the-cryosphere.net/10/2517/2016/tc-10-2517-2016.pdf https://doaj.org/article/18093a4a798a48ef8ac67aa9810e4f12 |
genre |
permafrost The Cryosphere Alaska |
genre_facet |
permafrost The Cryosphere Alaska |
op_source |
The Cryosphere, Vol 10, Pp 2517-2532 (2016) |
op_relation |
doi:10.5194/tc-10-2517-2016 1994-0416 1994-0424 https://www.the-cryosphere.net/10/2517/2016/tc-10-2517-2016.pdf https://doaj.org/article/18093a4a798a48ef8ac67aa9810e4f12 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-10-2517-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
5 |
container_start_page |
2517 |
op_container_end_page |
2532 |
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1766163532069470208 |