Physical mechanics of aufeis growth
All arctic travelers have encountered streams and braided rivers swollen with ice during the winter months. Numerous field measurements were made in an attempt to develop an understanding of the mechanics of aufeis growth. Piezometers were installed at several sites in central Alaska to measure the...
Published in: | Canadian Journal of Civil Engineering |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1981
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Online Access: | http://dx.doi.org/10.1139/l81-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/l81-026 |
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crcansciencepubl:10.1139/l81-026 2024-04-28T08:10:26+00:00 Physical mechanics of aufeis growth Kane, Douglas L. 1981 http://dx.doi.org/10.1139/l81-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/l81-026 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Civil Engineering volume 8, issue 2, page 186-195 ISSN 0315-1468 1208-6029 General Environmental Science Civil and Structural Engineering journal-article 1981 crcansciencepubl https://doi.org/10.1139/l81-026 2024-04-02T06:55:54Z All arctic travelers have encountered streams and braided rivers swollen with ice during the winter months. Numerous field measurements were made in an attempt to develop an understanding of the mechanics of aufeis growth. Piezometers were installed at several sites in central Alaska to measure the pressure variations of the fluid in the porous streambank. Time series analyses were utilized for correlating the variations in the observed pore pressures with climatic variables. It was concluded from the piezometer measurements of pore water pressure that subpermafrost groundwater or groundwater from nonpermafrost regions was the source of water for these ice deposits. Water from the active layer did not contribute to these accumulations of ice. Time series analysis revealed that pore water pressures started to increase following warming trends. A time lag existed between the start of a warming trend and the corresponding changes in pore water pressure; this time lag increased as the thickness of ice increased. Article in Journal/Newspaper Arctic Alaska Canadian Science Publishing Canadian Journal of Civil Engineering 8 2 186 195 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Environmental Science Civil and Structural Engineering |
spellingShingle |
General Environmental Science Civil and Structural Engineering Kane, Douglas L. Physical mechanics of aufeis growth |
topic_facet |
General Environmental Science Civil and Structural Engineering |
description |
All arctic travelers have encountered streams and braided rivers swollen with ice during the winter months. Numerous field measurements were made in an attempt to develop an understanding of the mechanics of aufeis growth. Piezometers were installed at several sites in central Alaska to measure the pressure variations of the fluid in the porous streambank. Time series analyses were utilized for correlating the variations in the observed pore pressures with climatic variables. It was concluded from the piezometer measurements of pore water pressure that subpermafrost groundwater or groundwater from nonpermafrost regions was the source of water for these ice deposits. Water from the active layer did not contribute to these accumulations of ice. Time series analysis revealed that pore water pressures started to increase following warming trends. A time lag existed between the start of a warming trend and the corresponding changes in pore water pressure; this time lag increased as the thickness of ice increased. |
format |
Article in Journal/Newspaper |
author |
Kane, Douglas L. |
author_facet |
Kane, Douglas L. |
author_sort |
Kane, Douglas L. |
title |
Physical mechanics of aufeis growth |
title_short |
Physical mechanics of aufeis growth |
title_full |
Physical mechanics of aufeis growth |
title_fullStr |
Physical mechanics of aufeis growth |
title_full_unstemmed |
Physical mechanics of aufeis growth |
title_sort |
physical mechanics of aufeis growth |
publisher |
Canadian Science Publishing |
publishDate |
1981 |
url |
http://dx.doi.org/10.1139/l81-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/l81-026 |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
Canadian Journal of Civil Engineering volume 8, issue 2, page 186-195 ISSN 0315-1468 1208-6029 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/l81-026 |
container_title |
Canadian Journal of Civil Engineering |
container_volume |
8 |
container_issue |
2 |
container_start_page |
186 |
op_container_end_page |
195 |
_version_ |
1797578317883244544 |