Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model
The snowpack is a complicated multiphase mixture with mechanical, hydraulic, and thermal properties highly variable during the year in response to climatic forcings. Bulk density is a macroscopic property of the snowpack used, together with snow depth, to quantify the water stored. In seasonal snowp...
Published in: | The Cryosphere |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00023182 2023-05-15T18:32:32+02:00 Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model De Michele, C. Avanzi, F. Ghezzi, A. Jommi, C. 2013-03 electronic https://doi.org/10.5194/tc-7-433-2013 https://noa.gwlb.de/receive/cop_mods_00023182 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023137/tc-7-433-2013.pdf https://tc.copernicus.org/articles/7/433/2013/tc-7-433-2013.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-7-433-2013 https://noa.gwlb.de/receive/cop_mods_00023182 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023137/tc-7-433-2013.pdf https://tc.copernicus.org/articles/7/433/2013/tc-7-433-2013.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2013 ftnonlinearchiv https://doi.org/10.5194/tc-7-433-2013 2022-02-08T22:50:47Z The snowpack is a complicated multiphase mixture with mechanical, hydraulic, and thermal properties highly variable during the year in response to climatic forcings. Bulk density is a macroscopic property of the snowpack used, together with snow depth, to quantify the water stored. In seasonal snowpacks, the bulk density is characterized by a strongly non-linear behaviour due to the occurrence of both dry and wet conditions. In the literature, bulk snow density estimates are obtained principally with multiple regressions, and snowpack models have put the attention principally on the snow depth and snow water equivalent. Here a one-dimensional model for the temporal dynamics of the snowpack, with particular attention to the bulk snow density, has been proposed, accounting for both dry and wet conditions. The model represents the snowpack as a two-constituent mixture: a dry part including ice structure, and air; and a wet part constituted by liquid water. It describes the dynamics of three variables: the depth and density of the dry part and the depth of liquid water. The model has been calibrated and validated against hourly data registered at three SNOTEL stations, western US, with mean values of the Nash–Sutcliffe coefficient ≈0.73–0.97 in the validation period. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA Nash ENVELOPE(-62.350,-62.350,-74.233,-74.233) Sutcliffe ENVELOPE(-81.383,-81.383,50.683,50.683) The Cryosphere 7 2 433 444 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung De Michele, C. Avanzi, F. Ghezzi, A. Jommi, C. Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
topic_facet |
article Verlagsveröffentlichung |
description |
The snowpack is a complicated multiphase mixture with mechanical, hydraulic, and thermal properties highly variable during the year in response to climatic forcings. Bulk density is a macroscopic property of the snowpack used, together with snow depth, to quantify the water stored. In seasonal snowpacks, the bulk density is characterized by a strongly non-linear behaviour due to the occurrence of both dry and wet conditions. In the literature, bulk snow density estimates are obtained principally with multiple regressions, and snowpack models have put the attention principally on the snow depth and snow water equivalent. Here a one-dimensional model for the temporal dynamics of the snowpack, with particular attention to the bulk snow density, has been proposed, accounting for both dry and wet conditions. The model represents the snowpack as a two-constituent mixture: a dry part including ice structure, and air; and a wet part constituted by liquid water. It describes the dynamics of three variables: the depth and density of the dry part and the depth of liquid water. The model has been calibrated and validated against hourly data registered at three SNOTEL stations, western US, with mean values of the Nash–Sutcliffe coefficient ≈0.73–0.97 in the validation period. |
format |
Article in Journal/Newspaper |
author |
De Michele, C. Avanzi, F. Ghezzi, A. Jommi, C. |
author_facet |
De Michele, C. Avanzi, F. Ghezzi, A. Jommi, C. |
author_sort |
De Michele, C. |
title |
Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
title_short |
Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
title_full |
Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
title_fullStr |
Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
title_full_unstemmed |
Investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
title_sort |
investigating the dynamics of bulk snow density in dry and wet conditions using a one-dimensional model |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/tc-7-433-2013 https://noa.gwlb.de/receive/cop_mods_00023182 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023137/tc-7-433-2013.pdf https://tc.copernicus.org/articles/7/433/2013/tc-7-433-2013.pdf |
long_lat |
ENVELOPE(-62.350,-62.350,-74.233,-74.233) ENVELOPE(-81.383,-81.383,50.683,50.683) |
geographic |
Nash Sutcliffe |
geographic_facet |
Nash Sutcliffe |
genre |
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-7-433-2013 https://noa.gwlb.de/receive/cop_mods_00023182 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00023137/tc-7-433-2013.pdf https://tc.copernicus.org/articles/7/433/2013/tc-7-433-2013.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-7-433-2013 |
container_title |
The Cryosphere |
container_volume |
7 |
container_issue |
2 |
container_start_page |
433 |
op_container_end_page |
444 |
_version_ |
1766216695579410432 |