Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons
Modeling the multidimensional flow of liquid water through snow has been limited in spatial and temporal scales to date. Here, we present simulations using the inverse TOUGH2 (iTOUGH2) model informed by the model SNOWPACK, referred to as SnowTOUGH. We use SnowTOUGH to simulate snow metamorphism, mel...
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Copernicus Publications
2021
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Online Access: | https://doi.org/10.5194/tc-15-1423-2021 https://tc.copernicus.org/articles/15/1423/2021/tc-15-1423-2021.pdf https://doaj.org/article/646f244ac85a4b2690efcfb34b1fce3a |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:646f244ac85a4b2690efcfb34b1fce3a 2023-05-15T18:32:19+02:00 Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons R. W. Webb K. Jennings S. Finsterle S. R. Fassnacht 2021-03-01 https://doi.org/10.5194/tc-15-1423-2021 https://tc.copernicus.org/articles/15/1423/2021/tc-15-1423-2021.pdf https://doaj.org/article/646f244ac85a4b2690efcfb34b1fce3a en eng Copernicus Publications doi:10.5194/tc-15-1423-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/1423/2021/tc-15-1423-2021.pdf https://doaj.org/article/646f244ac85a4b2690efcfb34b1fce3a undefined The Cryosphere, Vol 15, Pp 1423-1434 (2021) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5194/tc-15-1423-2021 2023-01-22T19:26:02Z Modeling the multidimensional flow of liquid water through snow has been limited in spatial and temporal scales to date. Here, we present simulations using the inverse TOUGH2 (iTOUGH2) model informed by the model SNOWPACK, referred to as SnowTOUGH. We use SnowTOUGH to simulate snow metamorphism, melt/freeze processes, and liquid water movement in two-dimensional snowpacks at the plot scale (20 m) on a sloping ground surface during multi-day observation periods at three field sites in northern Colorado, USA. Model results compare well with sites below the treeline and above the treeline but not at a site near the treeline. Results show the importance of longitudinal intra-snowpack flow paths (i.e., parallel to ground surface in the downslope direction and sometimes referred to as lateral flow), particularly during times when the snow surface (i.e., snow–atmosphere interface) is not actively melting. At our above-treeline site, simulations show that longitudinal flow can occur at rates orders of magnitude greater than vertically downward percolating water flow at a mean ratio of 75:1 as a result of hydraulic barriers that divert flow. Our near-treeline site simulations resulted in slightly less longitudinal flow than vertically percolating water, and the below-treeline site resulted in negligible longitudinal flow of liquid water. These results show the increasing influence of longitudinal intra-snowpack flow paths with elevation, similar to field observations. Results of this study suggest that intra-snowpack longitudinal flow may be an important process for consideration in hydrologic modeling for higher-elevation headwater catchments. Article in Journal/Newspaper The Cryosphere Unknown The Cryosphere 15 3 1423 1434 |
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English |
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geo envir R. W. Webb K. Jennings S. Finsterle S. R. Fassnacht Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
topic_facet |
geo envir |
description |
Modeling the multidimensional flow of liquid water through snow has been limited in spatial and temporal scales to date. Here, we present simulations using the inverse TOUGH2 (iTOUGH2) model informed by the model SNOWPACK, referred to as SnowTOUGH. We use SnowTOUGH to simulate snow metamorphism, melt/freeze processes, and liquid water movement in two-dimensional snowpacks at the plot scale (20 m) on a sloping ground surface during multi-day observation periods at three field sites in northern Colorado, USA. Model results compare well with sites below the treeline and above the treeline but not at a site near the treeline. Results show the importance of longitudinal intra-snowpack flow paths (i.e., parallel to ground surface in the downslope direction and sometimes referred to as lateral flow), particularly during times when the snow surface (i.e., snow–atmosphere interface) is not actively melting. At our above-treeline site, simulations show that longitudinal flow can occur at rates orders of magnitude greater than vertically downward percolating water flow at a mean ratio of 75:1 as a result of hydraulic barriers that divert flow. Our near-treeline site simulations resulted in slightly less longitudinal flow than vertically percolating water, and the below-treeline site resulted in negligible longitudinal flow of liquid water. These results show the increasing influence of longitudinal intra-snowpack flow paths with elevation, similar to field observations. Results of this study suggest that intra-snowpack longitudinal flow may be an important process for consideration in hydrologic modeling for higher-elevation headwater catchments. |
format |
Article in Journal/Newspaper |
author |
R. W. Webb K. Jennings S. Finsterle S. R. Fassnacht |
author_facet |
R. W. Webb K. Jennings S. Finsterle S. R. Fassnacht |
author_sort |
R. W. Webb |
title |
Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
title_short |
Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
title_full |
Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
title_fullStr |
Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
title_full_unstemmed |
Two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
title_sort |
two-dimensional liquid water flow through snow at the plot scale in continental snowpacks: simulations and field data comparisons |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-1423-2021 https://tc.copernicus.org/articles/15/1423/2021/tc-15-1423-2021.pdf https://doaj.org/article/646f244ac85a4b2690efcfb34b1fce3a |
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The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 1423-1434 (2021) |
op_relation |
doi:10.5194/tc-15-1423-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/1423/2021/tc-15-1423-2021.pdf https://doaj.org/article/646f244ac85a4b2690efcfb34b1fce3a |
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op_doi |
https://doi.org/10.5194/tc-15-1423-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
3 |
container_start_page |
1423 |
op_container_end_page |
1434 |
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