Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica
Two 30-m deep permafrost temperature-monitoring boreholes were installed in bedrock, one at Marble Point and one in the Wright Valley, in the Ross Sea region of Antarctica. A soil climate-monitoring station in till is located near each borehole. The ground surface temperature (GST) was highly correl...
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Online Access: | https://hdl.handle.net/10289/5156 https://doi.org/10.1002/ppp.715 |
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ftunivwaikato:oai:researchcommons.waikato.ac.nz:10289/5156 2024-01-21T10:00:23+01:00 Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica Guglielmin, Mauro Balks, Megan R. Adlam, Leah Seree Baio, Fabio 2011 https://hdl.handle.net/10289/5156 https://doi.org/10.1002/ppp.715 en eng Wiley Online Library Permafrost and Periglacial Processes Guglielmin, M., Balks, M. R., Adlam, L. S., & Baio, F. (2011). Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica. Permafrost and Periglacial Processes, 22(2), 129–139. http://doi.org/10.1002/ppp.715 https://hdl.handle.net/10289/5156 doi:10.1002/ppp.715 active layer soil temperature permafrost temperature McMurdo Dry Valleys Antarctica Journal Article 2011 ftunivwaikato https://doi.org/10.1002/ppp.715 2023-12-26T18:25:23Z Two 30-m deep permafrost temperature-monitoring boreholes were installed in bedrock, one at Marble Point and one in the Wright Valley, in the Ross Sea region of Antarctica. A soil climate-monitoring station in till is located near each borehole. The ground surface temperature (GST) was highly correlated with the air temperature at both sites in 2008. Thermal offsets were small (< 1 °C) in the till and negligible in the boreholes. The active layer was thicker in the boreholes than in the till, presumably because of the higher thermal diffusivity of the rock. The measured depth of zero annual temperature amplitude was around 27 m at Wright Valley and 25 m at Marble Point. Permafrost thickness was estimated at about 680 m at Wright Valley and 490 m at Marble Point. The GST history, reconstructed using an inversion procedure, suggests a slight cooling from 1998 to 2003 followed by a slight warming to 2008. Longer temperature records or deeper boreholes would be required to establish if long-term climate change has occurred. Article in Journal/Newspaper Antarc* Antarctica McMurdo Dry Valleys permafrost Permafrost and Periglacial Processes Ross Sea Victoria Land The University of Waikato: Research Commons Ross Sea Victoria Land McMurdo Dry Valleys Wright Valley ENVELOPE(161.833,161.833,-77.517,-77.517) Marble Point ENVELOPE(163.833,163.833,-77.433,-77.433) Permafrost and Periglacial Processes 22 2 129 139 |
institution |
Open Polar |
collection |
The University of Waikato: Research Commons |
op_collection_id |
ftunivwaikato |
language |
English |
topic |
active layer soil temperature permafrost temperature McMurdo Dry Valleys Antarctica |
spellingShingle |
active layer soil temperature permafrost temperature McMurdo Dry Valleys Antarctica Guglielmin, Mauro Balks, Megan R. Adlam, Leah Seree Baio, Fabio Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica |
topic_facet |
active layer soil temperature permafrost temperature McMurdo Dry Valleys Antarctica |
description |
Two 30-m deep permafrost temperature-monitoring boreholes were installed in bedrock, one at Marble Point and one in the Wright Valley, in the Ross Sea region of Antarctica. A soil climate-monitoring station in till is located near each borehole. The ground surface temperature (GST) was highly correlated with the air temperature at both sites in 2008. Thermal offsets were small (< 1 °C) in the till and negligible in the boreholes. The active layer was thicker in the boreholes than in the till, presumably because of the higher thermal diffusivity of the rock. The measured depth of zero annual temperature amplitude was around 27 m at Wright Valley and 25 m at Marble Point. Permafrost thickness was estimated at about 680 m at Wright Valley and 490 m at Marble Point. The GST history, reconstructed using an inversion procedure, suggests a slight cooling from 1998 to 2003 followed by a slight warming to 2008. Longer temperature records or deeper boreholes would be required to establish if long-term climate change has occurred. |
format |
Article in Journal/Newspaper |
author |
Guglielmin, Mauro Balks, Megan R. Adlam, Leah Seree Baio, Fabio |
author_facet |
Guglielmin, Mauro Balks, Megan R. Adlam, Leah Seree Baio, Fabio |
author_sort |
Guglielmin, Mauro |
title |
Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica |
title_short |
Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica |
title_full |
Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica |
title_fullStr |
Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica |
title_full_unstemmed |
Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica |
title_sort |
permafrost thermal regime from two 30-m deep boreholes in southern victoria land, antarctica |
publisher |
Wiley Online Library |
publishDate |
2011 |
url |
https://hdl.handle.net/10289/5156 https://doi.org/10.1002/ppp.715 |
long_lat |
ENVELOPE(161.833,161.833,-77.517,-77.517) ENVELOPE(163.833,163.833,-77.433,-77.433) |
geographic |
Ross Sea Victoria Land McMurdo Dry Valleys Wright Valley Marble Point |
geographic_facet |
Ross Sea Victoria Land McMurdo Dry Valleys Wright Valley Marble Point |
genre |
Antarc* Antarctica McMurdo Dry Valleys permafrost Permafrost and Periglacial Processes Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctica McMurdo Dry Valleys permafrost Permafrost and Periglacial Processes Ross Sea Victoria Land |
op_relation |
Permafrost and Periglacial Processes Guglielmin, M., Balks, M. R., Adlam, L. S., & Baio, F. (2011). Permafrost thermal regime from two 30-m deep boreholes in southern victoria land, Antarctica. Permafrost and Periglacial Processes, 22(2), 129–139. http://doi.org/10.1002/ppp.715 https://hdl.handle.net/10289/5156 doi:10.1002/ppp.715 |
op_doi |
https://doi.org/10.1002/ppp.715 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
22 |
container_issue |
2 |
container_start_page |
129 |
op_container_end_page |
139 |
_version_ |
1788703123639894016 |