Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica
International attention to climate change phenomena has grown in the last decade; the active layer and permafrost are of great importance in understanding processes and future trends due to their role in energy flux regulation. The objective of this paper is to present active-layer temperature data...
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ftdoajarticles:oai:doaj.org/article:1a32d9663c7246ddaf2b68beb5cbdbc9 2023-05-15T13:02:43+02:00 Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica R. F. M. Michel C. E. G. R. Schaefer F. M. B. Simas M. R. Francelino E. I. Fernandes-Filho G. B. Lyra J. G. Bockheim 2014-12-01T00:00:00Z https://doi.org/10.5194/se-5-1361-2014 https://doaj.org/article/1a32d9663c7246ddaf2b68beb5cbdbc9 EN eng Copernicus Publications http://www.solid-earth.net/5/1361/2014/se-5-1361-2014.pdf https://doaj.org/toc/1869-9510 https://doaj.org/toc/1869-9529 1869-9510 1869-9529 doi:10.5194/se-5-1361-2014 https://doaj.org/article/1a32d9663c7246ddaf2b68beb5cbdbc9 Solid Earth, Vol 5, Iss 2, Pp 1361-1374 (2014) Geology QE1-996.5 Stratigraphy QE640-699 article 2014 ftdoajarticles https://doi.org/10.5194/se-5-1361-2014 2023-01-08T01:30:23Z International attention to climate change phenomena has grown in the last decade; the active layer and permafrost are of great importance in understanding processes and future trends due to their role in energy flux regulation. The objective of this paper is to present active-layer temperature data for one Circumpolar Active Layer Monitoring South hemisphere (CALM-S) site located on the Fildes Peninsula, King George Island, maritime Antarctica over an 57-month period (2008–2012). The monitoring site was installed during the summer of 2008 and consists of thermistors (accuracy of ±0.2 °C), arranged vertically with probes at different depths, recording data at hourly intervals in a high-capacity data logger. A series of statistical analyses was performed to describe the soil temperature time series, including a linear fit in order to identify global trends, and a series of autoregressive integrated moving average (ARIMA) models was tested in order to define the best fit for the data. The affects of weather on the thermal regime of the active layer have been identified, providing insights into the influence of climate change on permafrost. The active-layer thermal regime in the studied period was typical of periglacial environments, with extreme variation in surface during the summer resulting in frequent freeze and thaw cycles. The active-layer thickness (ALT) over the studied period shows a degree of variability related to different annual weather conditions, reaching a maximum of 117.5 cm in 2009. The ARIMA model could describe the data adequately and is an important tool for more conclusive analysis and predictions when longer data sets are available. Despite the variability when comparing temperature readings and ACT over the studied period, no trend can be identified. Article in Journal/Newspaper Active layer monitoring Active layer temperature Active layer thickness Antarc* Antarctica King George Island permafrost Directory of Open Access Journals: DOAJ Articles King George Island Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) Fildes peninsula ENVELOPE(-58.948,-58.948,-62.182,-62.182) Solid Earth 5 2 1361 1374 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 Stratigraphy QE640-699 |
spellingShingle |
Geology QE1-996.5 Stratigraphy QE640-699 R. F. M. Michel C. E. G. R. Schaefer F. M. B. Simas M. R. Francelino E. I. Fernandes-Filho G. B. Lyra J. G. Bockheim Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica |
topic_facet |
Geology QE1-996.5 Stratigraphy QE640-699 |
description |
International attention to climate change phenomena has grown in the last decade; the active layer and permafrost are of great importance in understanding processes and future trends due to their role in energy flux regulation. The objective of this paper is to present active-layer temperature data for one Circumpolar Active Layer Monitoring South hemisphere (CALM-S) site located on the Fildes Peninsula, King George Island, maritime Antarctica over an 57-month period (2008–2012). The monitoring site was installed during the summer of 2008 and consists of thermistors (accuracy of ±0.2 °C), arranged vertically with probes at different depths, recording data at hourly intervals in a high-capacity data logger. A series of statistical analyses was performed to describe the soil temperature time series, including a linear fit in order to identify global trends, and a series of autoregressive integrated moving average (ARIMA) models was tested in order to define the best fit for the data. The affects of weather on the thermal regime of the active layer have been identified, providing insights into the influence of climate change on permafrost. The active-layer thermal regime in the studied period was typical of periglacial environments, with extreme variation in surface during the summer resulting in frequent freeze and thaw cycles. The active-layer thickness (ALT) over the studied period shows a degree of variability related to different annual weather conditions, reaching a maximum of 117.5 cm in 2009. The ARIMA model could describe the data adequately and is an important tool for more conclusive analysis and predictions when longer data sets are available. Despite the variability when comparing temperature readings and ACT over the studied period, no trend can be identified. |
format |
Article in Journal/Newspaper |
author |
R. F. M. Michel C. E. G. R. Schaefer F. M. B. Simas M. R. Francelino E. I. Fernandes-Filho G. B. Lyra J. G. Bockheim |
author_facet |
R. F. M. Michel C. E. G. R. Schaefer F. M. B. Simas M. R. Francelino E. I. Fernandes-Filho G. B. Lyra J. G. Bockheim |
author_sort |
R. F. M. Michel |
title |
Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica |
title_short |
Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica |
title_full |
Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica |
title_fullStr |
Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica |
title_full_unstemmed |
Active-layer thermal monitoring on the Fildes Peninsula, King George Island, maritime Antarctica |
title_sort |
active-layer thermal monitoring on the fildes peninsula, king george island, maritime antarctica |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/se-5-1361-2014 https://doaj.org/article/1a32d9663c7246ddaf2b68beb5cbdbc9 |
long_lat |
ENVELOPE(-58.817,-58.817,-62.217,-62.217) ENVELOPE(-58.948,-58.948,-62.182,-62.182) |
geographic |
King George Island Fildes Fildes peninsula |
geographic_facet |
King George Island Fildes Fildes peninsula |
genre |
Active layer monitoring Active layer temperature Active layer thickness Antarc* Antarctica King George Island permafrost |
genre_facet |
Active layer monitoring Active layer temperature Active layer thickness Antarc* Antarctica King George Island permafrost |
op_source |
Solid Earth, Vol 5, Iss 2, Pp 1361-1374 (2014) |
op_relation |
http://www.solid-earth.net/5/1361/2014/se-5-1361-2014.pdf https://doaj.org/toc/1869-9510 https://doaj.org/toc/1869-9529 1869-9510 1869-9529 doi:10.5194/se-5-1361-2014 https://doaj.org/article/1a32d9663c7246ddaf2b68beb5cbdbc9 |
op_doi |
https://doi.org/10.5194/se-5-1361-2014 |
container_title |
Solid Earth |
container_volume |
5 |
container_issue |
2 |
container_start_page |
1361 |
op_container_end_page |
1374 |
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1766319963392442368 |