Rapid and Gradual Permafrost Thaw:A Tale of Two Sites
Warming temperatures and increasing disturbance by wildfire and extreme weather events is driving permafrost change across northern latitudes. The state of permafrost varies widely in space and time, depending on landscape, climate, hydrologic, and ecological factors. Despite its importance, few app...
Published in: | Geophysical Research Letters |
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Online Access: | https://pure.au.dk/portal/da/publications/rapid-and-gradual-permafrost-thaw(e97a3cda-64ca-45d6-9091-29e990394845).html https://doi.org/10.1029/2022GL100285 https://pure.au.dk/ws/files/335432531/Geophysical_Research_Letters_2022_Minsley.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/e97a3cda-64ca-45d6-9091-29e990394845 2023-09-05T13:22:24+02:00 Rapid and Gradual Permafrost Thaw:A Tale of Two Sites Minsley, B. J. Pastick, N. J. James, S. R. Brown, D. R.N. Wylie, B. K. Kass, M. A. Romanovsky, V. E. 2022-11 application/pdf https://pure.au.dk/portal/da/publications/rapid-and-gradual-permafrost-thaw(e97a3cda-64ca-45d6-9091-29e990394845).html https://doi.org/10.1029/2022GL100285 https://pure.au.dk/ws/files/335432531/Geophysical_Research_Letters_2022_Minsley.pdf eng eng info:eu-repo/semantics/openAccess Minsley , B J , Pastick , N J , James , S R , Brown , D R N , Wylie , B K , Kass , M A & Romanovsky , V E 2022 , ' Rapid and Gradual Permafrost Thaw : A Tale of Two Sites ' , Geophysical Research Letters , vol. 49 , no. 21 , e2022GL100285 . https://doi.org/10.1029/2022GL100285 geophysics permafrost precipitation wildfire article 2022 ftuniaarhuspubl https://doi.org/10.1029/2022GL100285 2023-08-16T22:57:53Z Warming temperatures and increasing disturbance by wildfire and extreme weather events is driving permafrost change across northern latitudes. The state of permafrost varies widely in space and time, depending on landscape, climate, hydrologic, and ecological factors. Despite its importance, few approaches commonly measure and monitor the changes in deep (>1 m) permafrost conditions with high spatial resolution. Here, we use electrical resistivity tomography surveys along two transects in interior Alaska previously disturbed by wildfire and more recently by warming temperatures and extreme precipitation. Long-term point observations of permafrost depth, temperature, and water content inform geophysical measurements which, in turn, are used to extrapolate interpretations over larger areas and with high spatial fidelity. We contrast gradual loss of recently formed permafrost driven by warmer temperatures and increased snowfall, with rapid permafrost loss driven by changes in air temperature, snow depth, and extreme summer precipitation in 2014. Article in Journal/Newspaper permafrost Alaska Aarhus University: Research Term Point ENVELOPE(-92.467,-92.467,62.134,62.134) Geophysical Research Letters 49 21 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
geophysics permafrost precipitation wildfire |
spellingShingle |
geophysics permafrost precipitation wildfire Minsley, B. J. Pastick, N. J. James, S. R. Brown, D. R.N. Wylie, B. K. Kass, M. A. Romanovsky, V. E. Rapid and Gradual Permafrost Thaw:A Tale of Two Sites |
topic_facet |
geophysics permafrost precipitation wildfire |
description |
Warming temperatures and increasing disturbance by wildfire and extreme weather events is driving permafrost change across northern latitudes. The state of permafrost varies widely in space and time, depending on landscape, climate, hydrologic, and ecological factors. Despite its importance, few approaches commonly measure and monitor the changes in deep (>1 m) permafrost conditions with high spatial resolution. Here, we use electrical resistivity tomography surveys along two transects in interior Alaska previously disturbed by wildfire and more recently by warming temperatures and extreme precipitation. Long-term point observations of permafrost depth, temperature, and water content inform geophysical measurements which, in turn, are used to extrapolate interpretations over larger areas and with high spatial fidelity. We contrast gradual loss of recently formed permafrost driven by warmer temperatures and increased snowfall, with rapid permafrost loss driven by changes in air temperature, snow depth, and extreme summer precipitation in 2014. |
format |
Article in Journal/Newspaper |
author |
Minsley, B. J. Pastick, N. J. James, S. R. Brown, D. R.N. Wylie, B. K. Kass, M. A. Romanovsky, V. E. |
author_facet |
Minsley, B. J. Pastick, N. J. James, S. R. Brown, D. R.N. Wylie, B. K. Kass, M. A. Romanovsky, V. E. |
author_sort |
Minsley, B. J. |
title |
Rapid and Gradual Permafrost Thaw:A Tale of Two Sites |
title_short |
Rapid and Gradual Permafrost Thaw:A Tale of Two Sites |
title_full |
Rapid and Gradual Permafrost Thaw:A Tale of Two Sites |
title_fullStr |
Rapid and Gradual Permafrost Thaw:A Tale of Two Sites |
title_full_unstemmed |
Rapid and Gradual Permafrost Thaw:A Tale of Two Sites |
title_sort |
rapid and gradual permafrost thaw:a tale of two sites |
publishDate |
2022 |
url |
https://pure.au.dk/portal/da/publications/rapid-and-gradual-permafrost-thaw(e97a3cda-64ca-45d6-9091-29e990394845).html https://doi.org/10.1029/2022GL100285 https://pure.au.dk/ws/files/335432531/Geophysical_Research_Letters_2022_Minsley.pdf |
long_lat |
ENVELOPE(-92.467,-92.467,62.134,62.134) |
geographic |
Term Point |
geographic_facet |
Term Point |
genre |
permafrost Alaska |
genre_facet |
permafrost Alaska |
op_source |
Minsley , B J , Pastick , N J , James , S R , Brown , D R N , Wylie , B K , Kass , M A & Romanovsky , V E 2022 , ' Rapid and Gradual Permafrost Thaw : A Tale of Two Sites ' , Geophysical Research Letters , vol. 49 , no. 21 , e2022GL100285 . https://doi.org/10.1029/2022GL100285 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2022GL100285 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
21 |
_version_ |
1776202923855839232 |