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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ftawi:oai:epic.awi.de:52908 2024-09-15T18:29:23+00:00 Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach Cable, William L. Romanovsky, Vladimir E. Jorgenson, M. Torre 2016-10-25 application/pdf https://epic.awi.de/id/eprint/52908/ https://epic.awi.de/id/eprint/52908/1/tc-10-2517-2016.pdf https://doi.org/10.5194/tc-10-2517-2016 https://hdl.handle.net/10013/epic.5fbcbaac-3bf3-47a1-aeff-e9bdd3b8dbd8 unknown Copernicus https://epic.awi.de/id/eprint/52908/1/tc-10-2517-2016.pdf Cable, W. L. orcid:0000-0002-7951-3946 , Romanovsky, V. E. and Jorgenson, M. T. (2016) Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach , The Cryosphere, 10 (5), pp. 2517-2532 . doi:10.5194/tc-10-2517-2016 <https://doi.org/10.5194/tc-10-2517-2016> , hdl:10013/epic.5fbcbaac-3bf3-47a1-aeff-e9bdd3b8dbd8 EPIC3The Cryosphere, Copernicus, 10(5), pp. 2517-2532, ISSN: 1994-0424 Article peerRev 2016 ftawi https://doi.org/10.5194/tc-10-2517-2016 2024-06-24T04:24:41Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) The Cryosphere 10 5 2517 2532 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
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 |
Cable, William L. Romanovsky, Vladimir E. Jorgenson, M. Torre |
spellingShingle |
Cable, William L. Romanovsky, Vladimir E. Jorgenson, M. Torre Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach |
author_facet |
Cable, William L. Romanovsky, Vladimir E. Jorgenson, M. Torre |
author_sort |
Cable, William L. |
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 |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/52908/ https://epic.awi.de/id/eprint/52908/1/tc-10-2517-2016.pdf https://doi.org/10.5194/tc-10-2517-2016 https://hdl.handle.net/10013/epic.5fbcbaac-3bf3-47a1-aeff-e9bdd3b8dbd8 |
genre |
permafrost The Cryosphere Alaska |
genre_facet |
permafrost The Cryosphere Alaska |
op_source |
EPIC3The Cryosphere, Copernicus, 10(5), pp. 2517-2532, ISSN: 1994-0424 |
op_relation |
https://epic.awi.de/id/eprint/52908/1/tc-10-2517-2016.pdf Cable, W. L. orcid:0000-0002-7951-3946 , Romanovsky, V. E. and Jorgenson, M. T. (2016) Scaling-up permafrost thermal measurements in western Alaska using an ecotype approach , The Cryosphere, 10 (5), pp. 2517-2532 . doi:10.5194/tc-10-2517-2016 <https://doi.org/10.5194/tc-10-2517-2016> , hdl:10013/epic.5fbcbaac-3bf3-47a1-aeff-e9bdd3b8dbd8 |
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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1810470784877985792 |