Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010
In this study, we investigated changes in active layer thickness (ALT) and permafrost temperatures at different depths using data from the permafrost monitoring network along the Qinghai-Xizang (Tibet) Railway (QXR) since 2005. Among these sites, mean ALT is ~3.1 m, with a range of ~1.1 to 5.9 m. Fr...
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Language: | English |
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Copernicus Publications
2012
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Online Access: | https://doi.org/10.5194/tc-6-607-2012 http://www.the-cryosphere.net/6/607/2012/tc-6-607-2012.pdf https://doaj.org/article/23c650173f9044309d80df3836db059f |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:23c650173f9044309d80df3836db059f 2023-05-15T13:03:01+02:00 Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 Q. Wu T. Zhang Y. Liu 2012-05-01 https://doi.org/10.5194/tc-6-607-2012 http://www.the-cryosphere.net/6/607/2012/tc-6-607-2012.pdf https://doaj.org/article/23c650173f9044309d80df3836db059f en eng Copernicus Publications doi:10.5194/tc-6-607-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/607/2012/tc-6-607-2012.pdf https://doaj.org/article/23c650173f9044309d80df3836db059f undefined The Cryosphere, Vol 6, Iss 3, Pp 607-612 (2012) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/tc-6-607-2012 2023-01-22T17:32:58Z In this study, we investigated changes in active layer thickness (ALT) and permafrost temperatures at different depths using data from the permafrost monitoring network along the Qinghai-Xizang (Tibet) Railway (QXR) since 2005. Among these sites, mean ALT is ~3.1 m, with a range of ~1.1 to 5.9 m. From 2006 through 2010, ALT has increased at a rate of ~6.3 cm a−1. The mean rate of permafrost temperature rise at the depth of 6.0 m is ~0.02 °C a−1, estimated by linear regression using 5 yr of data, and the mean rate of mean annual ground temperature (MAGT) rise at a depth of zero amplitude is ~0.012 °C a−1. Changes for colder permafrost (MAGT −1.0 °C). This is consistent with results observed in the Arctic and subarctic. Article in Journal/Newspaper Active layer thickness Arctic permafrost Subarctic The Cryosphere Unknown Arctic The Cryosphere 6 3 607 612 |
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English |
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geo envir |
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geo envir Q. Wu T. Zhang Y. Liu Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 |
topic_facet |
geo envir |
description |
In this study, we investigated changes in active layer thickness (ALT) and permafrost temperatures at different depths using data from the permafrost monitoring network along the Qinghai-Xizang (Tibet) Railway (QXR) since 2005. Among these sites, mean ALT is ~3.1 m, with a range of ~1.1 to 5.9 m. From 2006 through 2010, ALT has increased at a rate of ~6.3 cm a−1. The mean rate of permafrost temperature rise at the depth of 6.0 m is ~0.02 °C a−1, estimated by linear regression using 5 yr of data, and the mean rate of mean annual ground temperature (MAGT) rise at a depth of zero amplitude is ~0.012 °C a−1. Changes for colder permafrost (MAGT −1.0 °C). This is consistent with results observed in the Arctic and subarctic. |
format |
Article in Journal/Newspaper |
author |
Q. Wu T. Zhang Y. Liu |
author_facet |
Q. Wu T. Zhang Y. Liu |
author_sort |
Q. Wu |
title |
Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 |
title_short |
Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 |
title_full |
Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 |
title_fullStr |
Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 |
title_full_unstemmed |
Thermal state of the active layer and permafrost along the Qinghai-Xizang (Tibet) Railway from 2006 to 2010 |
title_sort |
thermal state of the active layer and permafrost along the qinghai-xizang (tibet) railway from 2006 to 2010 |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/tc-6-607-2012 http://www.the-cryosphere.net/6/607/2012/tc-6-607-2012.pdf https://doaj.org/article/23c650173f9044309d80df3836db059f |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Active layer thickness Arctic permafrost Subarctic The Cryosphere |
genre_facet |
Active layer thickness Arctic permafrost Subarctic The Cryosphere |
op_source |
The Cryosphere, Vol 6, Iss 3, Pp 607-612 (2012) |
op_relation |
doi:10.5194/tc-6-607-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/607/2012/tc-6-607-2012.pdf https://doaj.org/article/23c650173f9044309d80df3836db059f |
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undefined |
op_doi |
https://doi.org/10.5194/tc-6-607-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
3 |
container_start_page |
607 |
op_container_end_page |
612 |
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1766326266969980928 |