Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks
Rising temperatures in the Arctic can result in thaw of permafrost, with widespread implications for ecosystems and infrastructure. We analyzed mean annual air and ground temperatures in the eight northernmost national parks in Alaska using data from thirty-three National Park Service climate monito...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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Taylor & Francis Group
2021
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Online Access: | https://doi.org/10.1080/15230430.2020.1859435 https://doaj.org/article/d62c969ace3544b28bccf936794a59bc |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:d62c969ace3544b28bccf936794a59bc 2023-05-15T14:14:25+02:00 Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks David K. Swanson Pamela J. Sousanes Ken Hill 2021-01-01 https://doi.org/10.1080/15230430.2020.1859435 https://doaj.org/article/d62c969ace3544b28bccf936794a59bc en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2020.1859435 https://doaj.org/article/d62c969ace3544b28bccf936794a59bc undefined Arctic, Antarctic, and Alpine Research, Vol 53, Iss 1, Pp 1-19 (2021) permafrost climate change temperature n-factors geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.1080/15230430.2020.1859435 2023-01-22T17:53:09Z Rising temperatures in the Arctic can result in thaw of permafrost, with widespread implications for ecosystems and infrastructure. We analyzed mean annual air and ground temperatures in the eight northernmost national parks in Alaska using data from thirty-three National Park Service climate monitoring stations and eight National Weather Service stations. Mean annual air temperatures (MAATs) from 2014 to 2019 increased in a stepwise fashion relative to the preceding thirty-year period by at least 1°C at all locations in the study area; the increase was near 2°C in Denali National Park and most of the Arctic Alaska parks and 3°C in the far western coastal areas of the Arctic parks. The increase in mean annual ground temperatures (MAGT) was approximately equal to the increase in MAAT in windswept tundra areas with minimal snow, whereas under deeper taiga and alpine snowpacks the increase in MAGT was about half as large as the increase in MAAT. If the warm temperatures observed during 2014 to 2019 persist, there will be widespread degradation of permafrost in portions of these national parks and in similar environments across Alaska. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Climate change permafrost taiga Tundra Alaska Unknown Arctic Arctic, Antarctic, and Alpine Research 53 1 1 19 |
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Open Polar |
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language |
English |
topic |
permafrost climate change temperature n-factors geo envir |
spellingShingle |
permafrost climate change temperature n-factors geo envir David K. Swanson Pamela J. Sousanes Ken Hill Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks |
topic_facet |
permafrost climate change temperature n-factors geo envir |
description |
Rising temperatures in the Arctic can result in thaw of permafrost, with widespread implications for ecosystems and infrastructure. We analyzed mean annual air and ground temperatures in the eight northernmost national parks in Alaska using data from thirty-three National Park Service climate monitoring stations and eight National Weather Service stations. Mean annual air temperatures (MAATs) from 2014 to 2019 increased in a stepwise fashion relative to the preceding thirty-year period by at least 1°C at all locations in the study area; the increase was near 2°C in Denali National Park and most of the Arctic Alaska parks and 3°C in the far western coastal areas of the Arctic parks. The increase in mean annual ground temperatures (MAGT) was approximately equal to the increase in MAAT in windswept tundra areas with minimal snow, whereas under deeper taiga and alpine snowpacks the increase in MAGT was about half as large as the increase in MAAT. If the warm temperatures observed during 2014 to 2019 persist, there will be widespread degradation of permafrost in portions of these national parks and in similar environments across Alaska. |
format |
Article in Journal/Newspaper |
author |
David K. Swanson Pamela J. Sousanes Ken Hill |
author_facet |
David K. Swanson Pamela J. Sousanes Ken Hill |
author_sort |
David K. Swanson |
title |
Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks |
title_short |
Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks |
title_full |
Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks |
title_fullStr |
Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks |
title_full_unstemmed |
Increased mean annual temperatures in 2014–2019 indicate permafrost thaw in Alaskan national parks |
title_sort |
increased mean annual temperatures in 2014–2019 indicate permafrost thaw in alaskan national parks |
publisher |
Taylor & Francis Group |
publishDate |
2021 |
url |
https://doi.org/10.1080/15230430.2020.1859435 https://doaj.org/article/d62c969ace3544b28bccf936794a59bc |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarctic and Alpine Research Arctic Arctic Climate change permafrost taiga Tundra Alaska |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Climate change permafrost taiga Tundra Alaska |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 53, Iss 1, Pp 1-19 (2021) |
op_relation |
1523-0430 1938-4246 doi:10.1080/15230430.2020.1859435 https://doaj.org/article/d62c969ace3544b28bccf936794a59bc |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2020.1859435 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
53 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
19 |
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1766286887308230656 |