Tomography-based monitoring of isothermal snow metamorphism under advective conditions
Time-lapse X-ray microtomography was used to investigate the structural dynamics of isothermal snow metamorphism exposed to an advective airflow. The effect of diffusion and advection across the snow pores on the snow microstructure were analysed in controlled laboratory experiments and possible eff...
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Copernicus Publications
2015
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00015841 2023-05-15T18:32:33+02:00 Tomography-based monitoring of isothermal snow metamorphism under advective conditions Ebner, P. P. Schneebeli, M. Steinfeld, A. 2015-07 electronic https://doi.org/10.5194/tc-9-1363-2015 https://noa.gwlb.de/receive/cop_mods_00015841 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00015796/tc-9-1363-2015.pdf https://tc.copernicus.org/articles/9/1363/2015/tc-9-1363-2015.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-9-1363-2015 https://noa.gwlb.de/receive/cop_mods_00015841 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00015796/tc-9-1363-2015.pdf https://tc.copernicus.org/articles/9/1363/2015/tc-9-1363-2015.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2015 ftnonlinearchiv https://doi.org/10.5194/tc-9-1363-2015 2022-02-08T22:54:26Z Time-lapse X-ray microtomography was used to investigate the structural dynamics of isothermal snow metamorphism exposed to an advective airflow. The effect of diffusion and advection across the snow pores on the snow microstructure were analysed in controlled laboratory experiments and possible effects on natural snowpacks discussed. The 3-D digital geometry obtained by tomographic scans was used in direct pore-level numerical simulations to determine the effective permeability. The results showed that isothermal advection with saturated air have no influence on the coarsening rate that is typical for isothermal snow metamorphism. Isothermal snow metamorphism is driven by sublimation deposition caused by the Kelvin effect and is the limiting factor independently of the transport regime in the pores. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 9 4 1363 1371 |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Ebner, P. P. Schneebeli, M. Steinfeld, A. Tomography-based monitoring of isothermal snow metamorphism under advective conditions |
topic_facet |
article Verlagsveröffentlichung |
description |
Time-lapse X-ray microtomography was used to investigate the structural dynamics of isothermal snow metamorphism exposed to an advective airflow. The effect of diffusion and advection across the snow pores on the snow microstructure were analysed in controlled laboratory experiments and possible effects on natural snowpacks discussed. The 3-D digital geometry obtained by tomographic scans was used in direct pore-level numerical simulations to determine the effective permeability. The results showed that isothermal advection with saturated air have no influence on the coarsening rate that is typical for isothermal snow metamorphism. Isothermal snow metamorphism is driven by sublimation deposition caused by the Kelvin effect and is the limiting factor independently of the transport regime in the pores. |
format |
Article in Journal/Newspaper |
author |
Ebner, P. P. Schneebeli, M. Steinfeld, A. |
author_facet |
Ebner, P. P. Schneebeli, M. Steinfeld, A. |
author_sort |
Ebner, P. P. |
title |
Tomography-based monitoring of isothermal snow metamorphism under advective conditions |
title_short |
Tomography-based monitoring of isothermal snow metamorphism under advective conditions |
title_full |
Tomography-based monitoring of isothermal snow metamorphism under advective conditions |
title_fullStr |
Tomography-based monitoring of isothermal snow metamorphism under advective conditions |
title_full_unstemmed |
Tomography-based monitoring of isothermal snow metamorphism under advective conditions |
title_sort |
tomography-based monitoring of isothermal snow metamorphism under advective conditions |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/tc-9-1363-2015 https://noa.gwlb.de/receive/cop_mods_00015841 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00015796/tc-9-1363-2015.pdf https://tc.copernicus.org/articles/9/1363/2015/tc-9-1363-2015.pdf |
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The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-9-1363-2015 https://noa.gwlb.de/receive/cop_mods_00015841 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00015796/tc-9-1363-2015.pdf https://tc.copernicus.org/articles/9/1363/2015/tc-9-1363-2015.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-9-1363-2015 |
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The Cryosphere |
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9 |
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4 |
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1363 |
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1371 |
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1766216714217848832 |