Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important?
Because climate change can affect the carbon balance and hydrology in permafrost peatlands, a better understanding of their sensitivity to changes in temperature and precipitation is needed. In Tavvavuoma, northernmost Sweden, meteorological parameters and ground thermal properties have been monitor...
Published in: | Permafrost and Periglacial Processes |
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Stockholms universitet, Institutionen för naturgeografi
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ftstockholmuniv:oai:DiVA.org:su-132525 2023-05-15T13:02:41+02:00 Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? Sannel, A. Britta K. Hugelius, Gustaf Jansson, Peter Kuhry, Peter 2016 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-132525 https://doi.org/10.1002/ppp.1862 eng eng Stockholms universitet, Institutionen för naturgeografi Permafrost and Periglacial Processes, 1045-6740, 2016, 27:2, s. 177-188 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-132525 doi:10.1002/ppp.1862 ISI:000378430300003 info:eu-repo/semantics/openAccess permafrost peat plateau ground temperature active layer monitoring climate change Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2016 ftstockholmuniv https://doi.org/10.1002/ppp.1862 2023-02-23T21:41:38Z Because climate change can affect the carbon balance and hydrology in permafrost peatlands, a better understanding of their sensitivity to changes in temperature and precipitation is needed. In Tavvavuoma, northernmost Sweden, meteorological parameters and ground thermal properties have been monitored in a peat plateau from 2006 to 2013. During this time period, the air temperature record shows no warming trend, and the late-season thaw depth has been relatively stable at around 55-60cm. Meanwhile, the mean annual ground temperature at 1m depth has increased by 0.06 degrees C/yr and at 2-5m depth the permafrost is currently warmer than -0.3 degrees C. Statistical analyses suggest that interannual changes in thaw depth and ground temperatures are affected by different meteorological factors. Summer air temperatures and annual thawing degree-days control thaw depth (p0.05), whereas winter precipitation/snow depth affects ground temperatures (p0.1). The permafrost in this peat plateau is likely relict and not in equilibrium with current climatic conditions. Since the early 20(th) century, there has been a regional increase in air temperature and snow depth. If the ongoing permafrost warming in Tavvavuoma is a result of these long-term trends, short-term variability in meteorological parameters can still have an impact on the rate of permafrost degradation, but unless pronounced climate cooling occurs, thawing of the peat plateau is inevitable. Article in Journal/Newspaper Active layer monitoring Peat Peat plateau permafrost Permafrost and Periglacial Processes Subarctic Stockholm University: Publications (DiVA) Tavvavuoma ENVELOPE(20.860,20.860,68.520,68.520) Permafrost and Periglacial Processes 27 2 177 188 |
institution |
Open Polar |
collection |
Stockholm University: Publications (DiVA) |
op_collection_id |
ftstockholmuniv |
language |
English |
topic |
permafrost peat plateau ground temperature active layer monitoring climate change Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
spellingShingle |
permafrost peat plateau ground temperature active layer monitoring climate change Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Sannel, A. Britta K. Hugelius, Gustaf Jansson, Peter Kuhry, Peter Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? |
topic_facet |
permafrost peat plateau ground temperature active layer monitoring climate change Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
description |
Because climate change can affect the carbon balance and hydrology in permafrost peatlands, a better understanding of their sensitivity to changes in temperature and precipitation is needed. In Tavvavuoma, northernmost Sweden, meteorological parameters and ground thermal properties have been monitored in a peat plateau from 2006 to 2013. During this time period, the air temperature record shows no warming trend, and the late-season thaw depth has been relatively stable at around 55-60cm. Meanwhile, the mean annual ground temperature at 1m depth has increased by 0.06 degrees C/yr and at 2-5m depth the permafrost is currently warmer than -0.3 degrees C. Statistical analyses suggest that interannual changes in thaw depth and ground temperatures are affected by different meteorological factors. Summer air temperatures and annual thawing degree-days control thaw depth (p0.05), whereas winter precipitation/snow depth affects ground temperatures (p0.1). The permafrost in this peat plateau is likely relict and not in equilibrium with current climatic conditions. Since the early 20(th) century, there has been a regional increase in air temperature and snow depth. If the ongoing permafrost warming in Tavvavuoma is a result of these long-term trends, short-term variability in meteorological parameters can still have an impact on the rate of permafrost degradation, but unless pronounced climate cooling occurs, thawing of the peat plateau is inevitable. |
format |
Article in Journal/Newspaper |
author |
Sannel, A. Britta K. Hugelius, Gustaf Jansson, Peter Kuhry, Peter |
author_facet |
Sannel, A. Britta K. Hugelius, Gustaf Jansson, Peter Kuhry, Peter |
author_sort |
Sannel, A. Britta K. |
title |
Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? |
title_short |
Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? |
title_full |
Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? |
title_fullStr |
Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? |
title_full_unstemmed |
Permafrost Warming in a Subarctic Peatland - Which Meteorological Controls are Most Important? |
title_sort |
permafrost warming in a subarctic peatland - which meteorological controls are most important? |
publisher |
Stockholms universitet, Institutionen för naturgeografi |
publishDate |
2016 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-132525 https://doi.org/10.1002/ppp.1862 |
long_lat |
ENVELOPE(20.860,20.860,68.520,68.520) |
geographic |
Tavvavuoma |
geographic_facet |
Tavvavuoma |
genre |
Active layer monitoring Peat Peat plateau permafrost Permafrost and Periglacial Processes Subarctic |
genre_facet |
Active layer monitoring Peat Peat plateau permafrost Permafrost and Periglacial Processes Subarctic |
op_relation |
Permafrost and Periglacial Processes, 1045-6740, 2016, 27:2, s. 177-188 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-132525 doi:10.1002/ppp.1862 ISI:000378430300003 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/ppp.1862 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
27 |
container_issue |
2 |
container_start_page |
177 |
op_container_end_page |
188 |
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1766319329725382656 |