Effects of short-term variability of meteorological variables on soil temperature in permafrost regions
Effects of the short-term temporal variability of meteorological variables on soil temperature in northern high-latitude regions have been investigated. For this, a process-oriented land surface model has been driven using an artificially manipulated climate dataset. Short-term climate variability m...
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ftcopernicus:oai:publications.copernicus.org:tc61298 2023-05-15T13:03:16+02:00 Effects of short-term variability of meteorological variables on soil temperature in permafrost regions Beer, Christian Porada, Philipp Ekici, Altug Brakebusch, Matthias 2019-02-14 info:eu-repo/semantics/application/pdf https://doi.org/10.5194/tc-12-741-2018 https://tc.copernicus.org/articles/12/741/2018/ eng eng info:eu-repo/grantAgreement/EC/FP7/282700 doi:10.5194/tc-12-741-2018 https://tc.copernicus.org/articles/12/741/2018/ info:eu-repo/semantics/openAccess eISSN: 1994-0424 info:eu-repo/semantics/Text 2019 ftcopernicus https://doi.org/10.5194/tc-12-741-2018 2020-07-20T16:23:23Z Effects of the short-term temporal variability of meteorological variables on soil temperature in northern high-latitude regions have been investigated. For this, a process-oriented land surface model has been driven using an artificially manipulated climate dataset. Short-term climate variability mainly impacts snow depth, and the thermal diffusivity of lichens and bryophytes. These impacts of climate variability on insulating surface layers together substantially alter the heat exchange between atmosphere and soil. As a result, soil temperature is 0.1 to 0.8 ∘ C higher when climate variability is reduced. Earth system models project warming of the Arctic region but also increasing variability of meteorological variables and more often extreme meteorological events. Therefore, our results show that projected future increases in permafrost temperature and active-layer thickness in response to climate change will be lower (i) when taking into account future changes in short-term variability of meteorological variables and (ii) when representing dynamic snow and lichen and bryophyte functions in land surface models. Other/Unknown Material Active layer thickness Arctic Climate change permafrost Copernicus Publications: E-Journals Arctic The Cryosphere 12 2 741 757 |
institution |
Open Polar |
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Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Effects of the short-term temporal variability of meteorological variables on soil temperature in northern high-latitude regions have been investigated. For this, a process-oriented land surface model has been driven using an artificially manipulated climate dataset. Short-term climate variability mainly impacts snow depth, and the thermal diffusivity of lichens and bryophytes. These impacts of climate variability on insulating surface layers together substantially alter the heat exchange between atmosphere and soil. As a result, soil temperature is 0.1 to 0.8 ∘ C higher when climate variability is reduced. Earth system models project warming of the Arctic region but also increasing variability of meteorological variables and more often extreme meteorological events. Therefore, our results show that projected future increases in permafrost temperature and active-layer thickness in response to climate change will be lower (i) when taking into account future changes in short-term variability of meteorological variables and (ii) when representing dynamic snow and lichen and bryophyte functions in land surface models. |
format |
Other/Unknown Material |
author |
Beer, Christian Porada, Philipp Ekici, Altug Brakebusch, Matthias |
spellingShingle |
Beer, Christian Porada, Philipp Ekici, Altug Brakebusch, Matthias Effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
author_facet |
Beer, Christian Porada, Philipp Ekici, Altug Brakebusch, Matthias |
author_sort |
Beer, Christian |
title |
Effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
title_short |
Effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
title_full |
Effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
title_fullStr |
Effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
title_full_unstemmed |
Effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
title_sort |
effects of short-term variability of meteorological variables on soil temperature in permafrost regions |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-12-741-2018 https://tc.copernicus.org/articles/12/741/2018/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Active layer thickness Arctic Climate change permafrost |
genre_facet |
Active layer thickness Arctic Climate change permafrost |
op_source |
eISSN: 1994-0424 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/282700 doi:10.5194/tc-12-741-2018 https://tc.copernicus.org/articles/12/741/2018/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-12-741-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
2 |
container_start_page |
741 |
op_container_end_page |
757 |
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1766332596687470592 |