On the energy budget of a low-Arctic snowpack
Arctic landscapes are covered in snow for at least 6 months of the year. The energy balance of the snow cover plays a key role in these environments, influencing the surface albedo, the thermal regime of the permafrost, and other factors. Our goal is to quantify all major heat fluxes above, within,...
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Copernicus Publications
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00059885 2023-05-15T13:11:21+02:00 On the energy budget of a low-Arctic snowpack Lackner, Georg Domine, Florent Nadeau, Daniel F. Parent, Annie-Claude Anctil, François Lafaysse, Matthieu Dumont, Marie 2022-01 electronic https://doi.org/10.5194/tc-16-127-2022 https://noa.gwlb.de/receive/cop_mods_00059885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059534/tc-16-127-2022.pdf https://tc.copernicus.org/articles/16/127/2022/tc-16-127-2022.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-16-127-2022 https://noa.gwlb.de/receive/cop_mods_00059885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059534/tc-16-127-2022.pdf https://tc.copernicus.org/articles/16/127/2022/tc-16-127-2022.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2022 ftnonlinearchiv https://doi.org/10.5194/tc-16-127-2022 2022-02-08T22:32:23Z Arctic landscapes are covered in snow for at least 6 months of the year. The energy balance of the snow cover plays a key role in these environments, influencing the surface albedo, the thermal regime of the permafrost, and other factors. Our goal is to quantify all major heat fluxes above, within, and below a low-Arctic snowpack at a shrub tundra site on the east coast of Hudson Bay in eastern Canada. The study is based on observations from a flux tower that uses the eddy covariance approach and from profiles of temperature and thermal conductivity in the snow and soil. Additionally, we compared the observations with simulations produced using the Crocus snow model. We found that radiative losses due to negative longwave radiation are mostly counterbalanced by the sensible heat flux, whereas the latent heat flux is minimal. At the snow surface, the heat flux into the snow is similar in magnitude to the sensible heat flux. Because the snow cover stores very little heat, the majority of the upward heat flux in the snow is used to cool the soil. Overall, the model was able to reproduce the observed energy balance, but due to the effects of atmospheric stratification, it showed some deficiencies when simulating turbulent heat fluxes at an hourly timescale. Article in Journal/Newspaper albedo Arctic Hudson Bay permafrost The Cryosphere Tundra Niedersächsisches Online-Archiv NOA Arctic Canada Hudson Hudson Bay The Cryosphere 16 1 127 142 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Lackner, Georg Domine, Florent Nadeau, Daniel F. Parent, Annie-Claude Anctil, François Lafaysse, Matthieu Dumont, Marie On the energy budget of a low-Arctic snowpack |
topic_facet |
article Verlagsveröffentlichung |
description |
Arctic landscapes are covered in snow for at least 6 months of the year. The energy balance of the snow cover plays a key role in these environments, influencing the surface albedo, the thermal regime of the permafrost, and other factors. Our goal is to quantify all major heat fluxes above, within, and below a low-Arctic snowpack at a shrub tundra site on the east coast of Hudson Bay in eastern Canada. The study is based on observations from a flux tower that uses the eddy covariance approach and from profiles of temperature and thermal conductivity in the snow and soil. Additionally, we compared the observations with simulations produced using the Crocus snow model. We found that radiative losses due to negative longwave radiation are mostly counterbalanced by the sensible heat flux, whereas the latent heat flux is minimal. At the snow surface, the heat flux into the snow is similar in magnitude to the sensible heat flux. Because the snow cover stores very little heat, the majority of the upward heat flux in the snow is used to cool the soil. Overall, the model was able to reproduce the observed energy balance, but due to the effects of atmospheric stratification, it showed some deficiencies when simulating turbulent heat fluxes at an hourly timescale. |
format |
Article in Journal/Newspaper |
author |
Lackner, Georg Domine, Florent Nadeau, Daniel F. Parent, Annie-Claude Anctil, François Lafaysse, Matthieu Dumont, Marie |
author_facet |
Lackner, Georg Domine, Florent Nadeau, Daniel F. Parent, Annie-Claude Anctil, François Lafaysse, Matthieu Dumont, Marie |
author_sort |
Lackner, Georg |
title |
On the energy budget of a low-Arctic snowpack |
title_short |
On the energy budget of a low-Arctic snowpack |
title_full |
On the energy budget of a low-Arctic snowpack |
title_fullStr |
On the energy budget of a low-Arctic snowpack |
title_full_unstemmed |
On the energy budget of a low-Arctic snowpack |
title_sort |
on the energy budget of a low-arctic snowpack |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/tc-16-127-2022 https://noa.gwlb.de/receive/cop_mods_00059885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059534/tc-16-127-2022.pdf https://tc.copernicus.org/articles/16/127/2022/tc-16-127-2022.pdf |
geographic |
Arctic Canada Hudson Hudson Bay |
geographic_facet |
Arctic Canada Hudson Hudson Bay |
genre |
albedo Arctic Hudson Bay permafrost The Cryosphere Tundra |
genre_facet |
albedo Arctic Hudson Bay permafrost The Cryosphere Tundra |
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-16-127-2022 https://noa.gwlb.de/receive/cop_mods_00059885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059534/tc-16-127-2022.pdf https://tc.copernicus.org/articles/16/127/2022/tc-16-127-2022.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-16-127-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
1 |
container_start_page |
127 |
op_container_end_page |
142 |
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1766247026459148288 |