The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica
Abstract: Soils and the underlying permafrost from undisturbed sites and sites that had been disturbed by construction activities at Marble Point and Pram Point in the McMurdo Sound regionwere sampled from excavated pits and drill cores. Gravimetric moisture (ice) contents and particle size distribu...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.486.4776 2023-05-15T13:42:05+02:00 The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica The Pennsylvania State University CiteSeerX Archives 1992 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.4776 http://researchcommons.waikato.ac.nz/bitstream/handle/10289/934/Balks McMurdo Sound.pdf;jsessionid=B4BCAA2D8D614FFB3AADD26D1BD324A1?sequence=1 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.4776 http://researchcommons.waikato.ac.nz/bitstream/handle/10289/934/Balks McMurdo Sound.pdf;jsessionid=B4BCAA2D8D614FFB3AADD26D1BD324A1?sequence=1 Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://researchcommons.waikato.ac.nz/bitstream/handle/10289/934/Balks McMurdo Sound.pdf;jsessionid=B4BCAA2D8D614FFB3AADD26D1BD324A1?sequence=1 Key words Antarctica environmental damage McMurdo Sound moisture content permafrost soils text 1992 ftciteseerx 2016-01-08T08:13:14Z Abstract: Soils and the underlying permafrost from undisturbed sites and sites that had been disturbed by construction activities at Marble Point and Pram Point in the McMurdo Sound regionwere sampled from excavated pits and drill cores. Gravimetric moisture (ice) contents and particle size distribution were determined. Volumetric moisture contents were calculated from these results. At undisturbed sites soil moisture contents within the active layer (to c. 60 rm depth) were low and ranged from 0.5 % by weight at the soil surface to 10 % above the permafrost. The permafrost was generally completely saturated with ice, but sometimes contained considerable excess ice, with ice contents rising as high as 80 % by volume. At disturbed sites, soil moisture contents within the active layer were similar to those of the undisturbed sites (generally ~ 1 0 % by weight) but within the permafrost, moisture contents were lower and less variable than in the undisturbed sites, rarely exceeding 20 % by weight. The release of considerable quantities of water from the permafrost as a result of land disturbance during construction activities caused stream flows, soil shrinkage, land slumping and salinisation, resulting in significant permanent environmental damage. At Marble Point there has been no significant re-establishment of icy permafrost in the disturbed soils in the 30 years since land disturbance occurred. Text Antarc* Antarctica Ice McMurdo Sound permafrost Unknown Marble Point ENVELOPE(163.833,163.833,-77.433,-77.433) McMurdo Sound Pram Point ENVELOPE(166.750,166.750,-77.850,-77.850) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Key words Antarctica environmental damage McMurdo Sound moisture content permafrost soils |
spellingShingle |
Key words Antarctica environmental damage McMurdo Sound moisture content permafrost soils The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica |
topic_facet |
Key words Antarctica environmental damage McMurdo Sound moisture content permafrost soils |
description |
Abstract: Soils and the underlying permafrost from undisturbed sites and sites that had been disturbed by construction activities at Marble Point and Pram Point in the McMurdo Sound regionwere sampled from excavated pits and drill cores. Gravimetric moisture (ice) contents and particle size distribution were determined. Volumetric moisture contents were calculated from these results. At undisturbed sites soil moisture contents within the active layer (to c. 60 rm depth) were low and ranged from 0.5 % by weight at the soil surface to 10 % above the permafrost. The permafrost was generally completely saturated with ice, but sometimes contained considerable excess ice, with ice contents rising as high as 80 % by volume. At disturbed sites, soil moisture contents within the active layer were similar to those of the undisturbed sites (generally ~ 1 0 % by weight) but within the permafrost, moisture contents were lower and less variable than in the undisturbed sites, rarely exceeding 20 % by weight. The release of considerable quantities of water from the permafrost as a result of land disturbance during construction activities caused stream flows, soil shrinkage, land slumping and salinisation, resulting in significant permanent environmental damage. At Marble Point there has been no significant re-establishment of icy permafrost in the disturbed soils in the 30 years since land disturbance occurred. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica |
title_short |
The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica |
title_full |
The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica |
title_fullStr |
The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica |
title_full_unstemmed |
The effect of human activities on moisture content of soils and underlying permafrost from the McMurdo Sound region, Antarctica |
title_sort |
effect of human activities on moisture content of soils and underlying permafrost from the mcmurdo sound region, antarctica |
publishDate |
1992 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.4776 http://researchcommons.waikato.ac.nz/bitstream/handle/10289/934/Balks McMurdo Sound.pdf;jsessionid=B4BCAA2D8D614FFB3AADD26D1BD324A1?sequence=1 |
long_lat |
ENVELOPE(163.833,163.833,-77.433,-77.433) ENVELOPE(166.750,166.750,-77.850,-77.850) |
geographic |
Marble Point McMurdo Sound Pram Point |
geographic_facet |
Marble Point McMurdo Sound Pram Point |
genre |
Antarc* Antarctica Ice McMurdo Sound permafrost |
genre_facet |
Antarc* Antarctica Ice McMurdo Sound permafrost |
op_source |
http://researchcommons.waikato.ac.nz/bitstream/handle/10289/934/Balks McMurdo Sound.pdf;jsessionid=B4BCAA2D8D614FFB3AADD26D1BD324A1?sequence=1 |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.4776 http://researchcommons.waikato.ac.nz/bitstream/handle/10289/934/Balks McMurdo Sound.pdf;jsessionid=B4BCAA2D8D614FFB3AADD26D1BD324A1?sequence=1 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766162566764036096 |