PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions
Periglacial features, such as various kinds of patterned ground, cryoturbations, frost wedges, solifluction structures, and blockfields, are among the most common relics of cold climate periods, which repetitively occurred throughout the Quaternary. As such, they are widespread archives of past envi...
Published in: | Geoscientific Model Development |
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Copernicus Publications
2021
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00056170 2023-05-15T13:03:25+02:00 PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions Uxa, Tomáš Křížek, Marek Hrbáček, Filip 2021-04 electronic https://doi.org/10.5194/gmd-14-1865-2021 https://noa.gwlb.de/receive/cop_mods_00056170 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055821/gmd-14-1865-2021.pdf https://gmd.copernicus.org/articles/14/1865/2021/gmd-14-1865-2021.pdf eng eng Copernicus Publications Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725 -- http://www.geosci-model-dev.net/ -- 1991-9603 https://doi.org/10.5194/gmd-14-1865-2021 https://noa.gwlb.de/receive/cop_mods_00056170 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055821/gmd-14-1865-2021.pdf https://gmd.copernicus.org/articles/14/1865/2021/gmd-14-1865-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/gmd-14-1865-2021 2022-02-08T22:34:11Z Periglacial features, such as various kinds of patterned ground, cryoturbations, frost wedges, solifluction structures, and blockfields, are among the most common relics of cold climate periods, which repetitively occurred throughout the Quaternary. As such, they are widespread archives of past environmental conditions. Climate controls on the development of most periglacial features, however, remain poorly known, and thus empirical palaeo-climate reconstructions based on them have limited validity. This study presents and evaluates a simple new inverse modelling scheme called PERICLIMv1.0 (PERIglacial CLIMate) that derives palaeo-air temperature characteristics related to the palaeo-active-layer thickness, which can be recognized using many relict periglacial features found in past permafrost regions. The evaluation against modern temperature records showed that the model reproduces air temperature characteristics with average errors ≤1.3 ∘C. The past mean annual air temperature modelled experimentally for two sites in the Czech Republic hosting relict cryoturbation structures was between -7.0±1.9 and -3.2±1.5 ∘C, which is well in line with earlier reconstructions utilizing various palaeo-archives. These initial results are promising and suggest that the model could become a useful tool for reconstructing Quaternary palaeo-environments across vast areas of mid-latitudes and low latitudes where relict periglacial assemblages frequently occur, but their full potential remains to be exploited. Article in Journal/Newspaper Active layer thickness permafrost wedge* Niedersächsisches Online-Archiv NOA Geoscientific Model Development 14 4 1865 1884 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Uxa, Tomáš Křížek, Marek Hrbáček, Filip PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
topic_facet |
article Verlagsveröffentlichung |
description |
Periglacial features, such as various kinds of patterned ground, cryoturbations, frost wedges, solifluction structures, and blockfields, are among the most common relics of cold climate periods, which repetitively occurred throughout the Quaternary. As such, they are widespread archives of past environmental conditions. Climate controls on the development of most periglacial features, however, remain poorly known, and thus empirical palaeo-climate reconstructions based on them have limited validity. This study presents and evaluates a simple new inverse modelling scheme called PERICLIMv1.0 (PERIglacial CLIMate) that derives palaeo-air temperature characteristics related to the palaeo-active-layer thickness, which can be recognized using many relict periglacial features found in past permafrost regions. The evaluation against modern temperature records showed that the model reproduces air temperature characteristics with average errors ≤1.3 ∘C. The past mean annual air temperature modelled experimentally for two sites in the Czech Republic hosting relict cryoturbation structures was between -7.0±1.9 and -3.2±1.5 ∘C, which is well in line with earlier reconstructions utilizing various palaeo-archives. These initial results are promising and suggest that the model could become a useful tool for reconstructing Quaternary palaeo-environments across vast areas of mid-latitudes and low latitudes where relict periglacial assemblages frequently occur, but their full potential remains to be exploited. |
format |
Article in Journal/Newspaper |
author |
Uxa, Tomáš Křížek, Marek Hrbáček, Filip |
author_facet |
Uxa, Tomáš Křížek, Marek Hrbáček, Filip |
author_sort |
Uxa, Tomáš |
title |
PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
title_short |
PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
title_full |
PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
title_fullStr |
PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
title_full_unstemmed |
PERICLIMv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
title_sort |
periclimv1.0: a model deriving palaeo-air temperatures from thaw depth in past permafrost regions |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/gmd-14-1865-2021 https://noa.gwlb.de/receive/cop_mods_00056170 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055821/gmd-14-1865-2021.pdf https://gmd.copernicus.org/articles/14/1865/2021/gmd-14-1865-2021.pdf |
genre |
Active layer thickness permafrost wedge* |
genre_facet |
Active layer thickness permafrost wedge* |
op_relation |
Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725 -- http://www.geosci-model-dev.net/ -- 1991-9603 https://doi.org/10.5194/gmd-14-1865-2021 https://noa.gwlb.de/receive/cop_mods_00056170 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055821/gmd-14-1865-2021.pdf https://gmd.copernicus.org/articles/14/1865/2021/gmd-14-1865-2021.pdf |
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https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/gmd-14-1865-2021 |
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