Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard
The thermal state of permafrost is a crucial indicator of environmental changes occurring in the Arctic. The monitoring of ground temperatures in Svalbard has been carried out in instrumented boreholes, although only few are deeper than 10 m and none are located in southern part of Spitsbergen. Only...
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ftdoajarticles:oai:doaj.org/article:d2def56aae0740d2b4f1132c7b5615b3 2023-05-15T14:59:53+02:00 Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard Wawrzyniak Tomasz Osuch Marzena Napiórkowski Jarosław Westermann Sebastian 2016-06-01T00:00:00Z https://doi.org/10.1515/popore-2016-0013 https://doaj.org/article/d2def56aae0740d2b4f1132c7b5615b3 EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2016.37.issue-2/popore-2016-0013/popore-2016-0013.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2016-0013 https://doaj.org/article/d2def56aae0740d2b4f1132c7b5615b3 Polish Polar Research, Vol 37, Iss 2, Pp 219-242 (2016) Arctic Spitsbergen Hornsund permafrost modelling permafrost evolution Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.1515/popore-2016-0013 2022-12-31T12:15:43Z The thermal state of permafrost is a crucial indicator of environmental changes occurring in the Arctic. The monitoring of ground temperatures in Svalbard has been carried out in instrumented boreholes, although only few are deeper than 10 m and none are located in southern part of Spitsbergen. Only one of them, Janssonhaugen, located in central part of the island, provides the ground temperature data down to 100 m. Recent studies have proved that significant warming of the ground surface temperatures, observed especially in the last three decades, can be detected not only just few meters below the surface, but reaches much deeper layers. The aim of this paper is evaluation of the permafrost state in the vicinity of the Polish Polar Station in Hornsund using the numerical heat transfer model CryoGrid 2. The model is calibrated with ground temperature data collected from a 2 m deep borehole established in 2013 and then validated with data from the period 1990–2014 from five depths up to 1 m, measured routinely at the Hornsund meteorological station. The study estimates modelled ground thermal profile down to 100 m in depth and presents the evolution of the ground thermal regime in the last 25 years. The simulated subsurface temperature trumpet shows that multiannual variability in that period can reach 25 m in depth. The changes of the ground thermal regime correspond to an increasing trend of air temperatures observed in Hornsund and general warming across Svalbard. Article in Journal/Newspaper Arctic Hornsund permafrost Polar Research Svalbard Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Janssonhaugen ENVELOPE(16.383,16.383,78.183,78.183) Svalbard Polish Polar Research 37 2 219 242 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Spitsbergen Hornsund permafrost modelling permafrost evolution Geology QE1-996.5 |
spellingShingle |
Arctic Spitsbergen Hornsund permafrost modelling permafrost evolution Geology QE1-996.5 Wawrzyniak Tomasz Osuch Marzena Napiórkowski Jarosław Westermann Sebastian Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard |
topic_facet |
Arctic Spitsbergen Hornsund permafrost modelling permafrost evolution Geology QE1-996.5 |
description |
The thermal state of permafrost is a crucial indicator of environmental changes occurring in the Arctic. The monitoring of ground temperatures in Svalbard has been carried out in instrumented boreholes, although only few are deeper than 10 m and none are located in southern part of Spitsbergen. Only one of them, Janssonhaugen, located in central part of the island, provides the ground temperature data down to 100 m. Recent studies have proved that significant warming of the ground surface temperatures, observed especially in the last three decades, can be detected not only just few meters below the surface, but reaches much deeper layers. The aim of this paper is evaluation of the permafrost state in the vicinity of the Polish Polar Station in Hornsund using the numerical heat transfer model CryoGrid 2. The model is calibrated with ground temperature data collected from a 2 m deep borehole established in 2013 and then validated with data from the period 1990–2014 from five depths up to 1 m, measured routinely at the Hornsund meteorological station. The study estimates modelled ground thermal profile down to 100 m in depth and presents the evolution of the ground thermal regime in the last 25 years. The simulated subsurface temperature trumpet shows that multiannual variability in that period can reach 25 m in depth. The changes of the ground thermal regime correspond to an increasing trend of air temperatures observed in Hornsund and general warming across Svalbard. |
format |
Article in Journal/Newspaper |
author |
Wawrzyniak Tomasz Osuch Marzena Napiórkowski Jarosław Westermann Sebastian |
author_facet |
Wawrzyniak Tomasz Osuch Marzena Napiórkowski Jarosław Westermann Sebastian |
author_sort |
Wawrzyniak Tomasz |
title |
Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard |
title_short |
Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard |
title_full |
Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard |
title_fullStr |
Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard |
title_full_unstemmed |
Modelling of the thermal regime of permafrost during 1990–2014 in Hornsund, Svalbard |
title_sort |
modelling of the thermal regime of permafrost during 1990–2014 in hornsund, svalbard |
publisher |
Polish Academy of Sciences |
publishDate |
2016 |
url |
https://doi.org/10.1515/popore-2016-0013 https://doaj.org/article/d2def56aae0740d2b4f1132c7b5615b3 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(16.383,16.383,78.183,78.183) |
geographic |
Arctic Hornsund Janssonhaugen Svalbard |
geographic_facet |
Arctic Hornsund Janssonhaugen Svalbard |
genre |
Arctic Hornsund permafrost Polar Research Svalbard Spitsbergen |
genre_facet |
Arctic Hornsund permafrost Polar Research Svalbard Spitsbergen |
op_source |
Polish Polar Research, Vol 37, Iss 2, Pp 219-242 (2016) |
op_relation |
http://www.degruyter.com/view/j/popore.2016.37.issue-2/popore-2016-0013/popore-2016-0013.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2016-0013 https://doaj.org/article/d2def56aae0740d2b4f1132c7b5615b3 |
op_doi |
https://doi.org/10.1515/popore-2016-0013 |
container_title |
Polish Polar Research |
container_volume |
37 |
container_issue |
2 |
container_start_page |
219 |
op_container_end_page |
242 |
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1766332010508320768 |