Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites
In the summer 2000–01, thermal monitoring of the permafrost active layer within various terrestrial sites covered by lichen, moss or grasses was undertaken at Jubany (King George Island) and Signy Island in the Maritime Antarctic. The results demonstrated the buffering effect of vegetation on grou...
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Online Access: | https://www.openaccessrepository.it/record/156358 https://doi.org/10.1017/s095410200600037x |
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ftopenaccessrep:oai:zenodo.org:156358 2024-05-12T07:52:07+00:00 Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites Cannone, N. Ellis Evans, J.C. Strachan, R. Guglielmin, M. 2008-03-31 https://www.openaccessrepository.it/record/156358 https://doi.org/10.1017/s095410200600037x eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/156358 doi:10.1017/s095410200600037x info:eu-repo/semantics/openAccess Geology Ecology Evolution Behavior and Systematics Oceanography info:eu-repo/semantics/article publication-article 2008 ftopenaccessrep https://doi.org/10.1017/s095410200600037x 2024-04-17T14:59:29Z In the summer 2000–01, thermal monitoring of the permafrost active layer within various terrestrial sites covered by lichen, moss or grasses was undertaken at Jubany (King George Island) and Signy Island in the Maritime Antarctic. The results demonstrated the buffering effect of vegetation on ground surface temperature (GST) and the relationship between vegetation and active layer thickness. Vegetation type and coverage influenced the GST in both locations with highest variations and values in the Deschampsia and Usnea sites and the lowest variations and values in the Jubany moss site. Active layer thickness ranged from 57 cm (Jubany moss site) to 227 cm (Signy Deschampsia site). Active layer thickness data from Signy were compared with data collected at the same location four decades earlier. Using a regression equation for air temperature versus ground surface temperatures the patterns of changing air temperature over time suggest that the active layer thickness increased c. 30 cm between 1963 and 1990 and then decreased 30 cm between 1990 and 2000. The documented increased rate of warming (2°C ± 1) since 1950 for air temperatures recorded in the South Orkney Islands suggests that the overall trend of active layer thickness increase will be around 1 cm year−1. Article in Journal/Newspaper Active layer thickness Antarc* Antarctic King George Island permafrost Signy Island South Orkney Islands Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Antarctic King George Island Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Antarctic Science 18 3 323 333 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
Geology Ecology Evolution Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology Evolution Behavior and Systematics Oceanography Cannone, N. Ellis Evans, J.C. Strachan, R. Guglielmin, M. Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites |
topic_facet |
Geology Ecology Evolution Behavior and Systematics Oceanography |
description |
In the summer 2000–01, thermal monitoring of the permafrost active layer within various terrestrial sites covered by lichen, moss or grasses was undertaken at Jubany (King George Island) and Signy Island in the Maritime Antarctic. The results demonstrated the buffering effect of vegetation on ground surface temperature (GST) and the relationship between vegetation and active layer thickness. Vegetation type and coverage influenced the GST in both locations with highest variations and values in the Deschampsia and Usnea sites and the lowest variations and values in the Jubany moss site. Active layer thickness ranged from 57 cm (Jubany moss site) to 227 cm (Signy Deschampsia site). Active layer thickness data from Signy were compared with data collected at the same location four decades earlier. Using a regression equation for air temperature versus ground surface temperatures the patterns of changing air temperature over time suggest that the active layer thickness increased c. 30 cm between 1963 and 1990 and then decreased 30 cm between 1990 and 2000. The documented increased rate of warming (2°C ± 1) since 1950 for air temperatures recorded in the South Orkney Islands suggests that the overall trend of active layer thickness increase will be around 1 cm year−1. |
format |
Article in Journal/Newspaper |
author |
Cannone, N. Ellis Evans, J.C. Strachan, R. Guglielmin, M. |
author_facet |
Cannone, N. Ellis Evans, J.C. Strachan, R. Guglielmin, M. |
author_sort |
Cannone, N. |
title |
Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites |
title_short |
Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites |
title_full |
Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites |
title_fullStr |
Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites |
title_full_unstemmed |
Interactions between climate, vegetation and the active layer in soils at two Maritime Antarctic sites |
title_sort |
interactions between climate, vegetation and the active layer in soils at two maritime antarctic sites |
publishDate |
2008 |
url |
https://www.openaccessrepository.it/record/156358 https://doi.org/10.1017/s095410200600037x |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Antarctic King George Island Signy Island South Orkney Islands |
geographic_facet |
Antarctic King George Island Signy Island South Orkney Islands |
genre |
Active layer thickness Antarc* Antarctic King George Island permafrost Signy Island South Orkney Islands |
genre_facet |
Active layer thickness Antarc* Antarctic King George Island permafrost Signy Island South Orkney Islands |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/156358 doi:10.1017/s095410200600037x |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/s095410200600037x |
container_title |
Antarctic Science |
container_volume |
18 |
container_issue |
3 |
container_start_page |
323 |
op_container_end_page |
333 |
_version_ |
1798839644467494912 |