Impact of measured and simulated tundra snowpack properties on heat transfer
Snowpack microstructure controls the transfer of heat to, and the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two winters (March and November 2018, January and March 2019) were compared to an ensemble of CLM5.0 (Community La...
Published in: | The Cryosphere |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/50350/ https://doi.org/10.5194/tc-16-4201-2022 https://nrl.northumbria.ac.uk/id/eprint/50350/8/tc-16-4201-2022.pdf https://nrl.northumbria.ac.uk/id/eprint/50350/1/Paper1_FINAL_clean.pdf |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:50350 2023-05-15T15:09:53+02:00 Impact of measured and simulated tundra snowpack properties on heat transfer Dutch, Victoria Rutter, Nick Wake, Leanne Sandells, Melody Derksen, Chris Walker, Brandener Gosselin, Gabriel Hould Sonnentag, Oliver Essery, Richard Kelly, Richard Marsh, Philip King, Joshua Boike, Julia 2022-10-11 text https://nrl.northumbria.ac.uk/id/eprint/50350/ https://doi.org/10.5194/tc-16-4201-2022 https://nrl.northumbria.ac.uk/id/eprint/50350/8/tc-16-4201-2022.pdf https://nrl.northumbria.ac.uk/id/eprint/50350/1/Paper1_FINAL_clean.pdf en eng Coperincus https://nrl.northumbria.ac.uk/id/eprint/50350/8/tc-16-4201-2022.pdf https://nrl.northumbria.ac.uk/id/eprint/50350/1/Paper1_FINAL_clean.pdf Dutch, Victoria, Rutter, Nick, Wake, Leanne, Sandells, Melody, Derksen, Chris, Walker, Brandener, Gosselin, Gabriel Hould, Sonnentag, Oliver, Essery, Richard, Kelly, Richard, Marsh, Philip, King, Joshua and Boike, Julia (2022) Impact of measured and simulated tundra snowpack properties on heat transfer. The Cryosphere, 16 (10). pp. 4201-4222. ISSN 1994-0424 cc_by_4_0 CC-BY F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2022 ftunivnorthumb https://doi.org/10.5194/tc-16-4201-2022 2022-10-13T22:30:41Z Snowpack microstructure controls the transfer of heat to, and the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two winters (March and November 2018, January and March 2019) were compared to an ensemble of CLM5.0 (Community Land Model) simulations, at Trail Valley Creek, Northwest 20 Territories, Canada. Snow MicroPenetrometer profiles allowed snowpack density and thermal conductivity to be derived at higher vertical resolution (1.25 mm) and a larger sample size (n = 1050) compared to traditional snowpit observations (3 cm vertical resolution; n = 115). Comparing measurements with simulations shows CLM overestimated snow thermal conductivity by a factor of 3, leading to a cold bias in wintertime soil temperatures (RMSE = 5.8 ℃). Two different approaches were taken to reduce this bias: alternative parameterisations of snow thermal conductivity and the application of a correction factor. All 25 the evaluated parameterisations of snow thermal conductivity improved simulations of wintertime soil temperatures, with that of Sturm et al. (1997) having the greatest impact (RMSE = 2.5 ℃). The required correction factor is strongly related to snow depth (R2 = 0.77, RMSE = 0.066) and thus differs between the two snow seasons, limiting the applicability of such an approach. Improving simulated snow properties and the corresponding heat flux is important, as wintertime soil temperatures are an important control on subnivean soil respiration, and hence impact Arctic winter carbon fluxes and budgets. Article in Journal/Newspaper Arctic The Cryosphere Tundra Northumbria University, Newcastle: Northumbria Research Link (NRL) Arctic Canada Sturm ENVELOPE(162.967,162.967,-71.050,-71.050) Trail Valley Creek ENVELOPE(-133.415,-133.415,68.772,68.772) Valley Creek ENVELOPE(-138.324,-138.324,63.326,63.326) The Cryosphere 16 10 4201 4222 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Dutch, Victoria Rutter, Nick Wake, Leanne Sandells, Melody Derksen, Chris Walker, Brandener Gosselin, Gabriel Hould Sonnentag, Oliver Essery, Richard Kelly, Richard Marsh, Philip King, Joshua Boike, Julia Impact of measured and simulated tundra snowpack properties on heat transfer |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Snowpack microstructure controls the transfer of heat to, and the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two winters (March and November 2018, January and March 2019) were compared to an ensemble of CLM5.0 (Community Land Model) simulations, at Trail Valley Creek, Northwest 20 Territories, Canada. Snow MicroPenetrometer profiles allowed snowpack density and thermal conductivity to be derived at higher vertical resolution (1.25 mm) and a larger sample size (n = 1050) compared to traditional snowpit observations (3 cm vertical resolution; n = 115). Comparing measurements with simulations shows CLM overestimated snow thermal conductivity by a factor of 3, leading to a cold bias in wintertime soil temperatures (RMSE = 5.8 ℃). Two different approaches were taken to reduce this bias: alternative parameterisations of snow thermal conductivity and the application of a correction factor. All 25 the evaluated parameterisations of snow thermal conductivity improved simulations of wintertime soil temperatures, with that of Sturm et al. (1997) having the greatest impact (RMSE = 2.5 ℃). The required correction factor is strongly related to snow depth (R2 = 0.77, RMSE = 0.066) and thus differs between the two snow seasons, limiting the applicability of such an approach. Improving simulated snow properties and the corresponding heat flux is important, as wintertime soil temperatures are an important control on subnivean soil respiration, and hence impact Arctic winter carbon fluxes and budgets. |
format |
Article in Journal/Newspaper |
author |
Dutch, Victoria Rutter, Nick Wake, Leanne Sandells, Melody Derksen, Chris Walker, Brandener Gosselin, Gabriel Hould Sonnentag, Oliver Essery, Richard Kelly, Richard Marsh, Philip King, Joshua Boike, Julia |
author_facet |
Dutch, Victoria Rutter, Nick Wake, Leanne Sandells, Melody Derksen, Chris Walker, Brandener Gosselin, Gabriel Hould Sonnentag, Oliver Essery, Richard Kelly, Richard Marsh, Philip King, Joshua Boike, Julia |
author_sort |
Dutch, Victoria |
title |
Impact of measured and simulated tundra snowpack properties on heat transfer |
title_short |
Impact of measured and simulated tundra snowpack properties on heat transfer |
title_full |
Impact of measured and simulated tundra snowpack properties on heat transfer |
title_fullStr |
Impact of measured and simulated tundra snowpack properties on heat transfer |
title_full_unstemmed |
Impact of measured and simulated tundra snowpack properties on heat transfer |
title_sort |
impact of measured and simulated tundra snowpack properties on heat transfer |
publisher |
Coperincus |
publishDate |
2022 |
url |
https://nrl.northumbria.ac.uk/id/eprint/50350/ https://doi.org/10.5194/tc-16-4201-2022 https://nrl.northumbria.ac.uk/id/eprint/50350/8/tc-16-4201-2022.pdf https://nrl.northumbria.ac.uk/id/eprint/50350/1/Paper1_FINAL_clean.pdf |
long_lat |
ENVELOPE(162.967,162.967,-71.050,-71.050) ENVELOPE(-133.415,-133.415,68.772,68.772) ENVELOPE(-138.324,-138.324,63.326,63.326) |
geographic |
Arctic Canada Sturm Trail Valley Creek Valley Creek |
geographic_facet |
Arctic Canada Sturm Trail Valley Creek Valley Creek |
genre |
Arctic The Cryosphere Tundra |
genre_facet |
Arctic The Cryosphere Tundra |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/50350/8/tc-16-4201-2022.pdf https://nrl.northumbria.ac.uk/id/eprint/50350/1/Paper1_FINAL_clean.pdf Dutch, Victoria, Rutter, Nick, Wake, Leanne, Sandells, Melody, Derksen, Chris, Walker, Brandener, Gosselin, Gabriel Hould, Sonnentag, Oliver, Essery, Richard, Kelly, Richard, Marsh, Philip, King, Joshua and Boike, Julia (2022) Impact of measured and simulated tundra snowpack properties on heat transfer. The Cryosphere, 16 (10). pp. 4201-4222. ISSN 1994-0424 |
op_rights |
cc_by_4_0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-16-4201-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
10 |
container_start_page |
4201 |
op_container_end_page |
4222 |
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1766340986628210688 |