On the energy budget of a low-Arctic snowpack
International audience 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...
Published in: | The Cryosphere |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2022
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Subjects: | |
Online Access: | https://hal.science/hal-03529922 https://hal.science/hal-03529922/document https://hal.science/hal-03529922/file/tc-16-127-2022.pdf https://doi.org/10.5194/tc-16-127-2022 |
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Open Polar |
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Météo-France: HAL |
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ftmeteofrance |
language |
English |
topic |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology 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 |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience 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 |
author2 |
Université Laval Québec (ULaval) Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) ANR-10-LABX-0056,OSUG@2020,Innovative strategies for observing and modelling natural systems(2010) |
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 |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03529922 https://hal.science/hal-03529922/document https://hal.science/hal-03529922/file/tc-16-127-2022.pdf https://doi.org/10.5194/tc-16-127-2022 |
geographic |
Arctic Hudson Bay Canada Hudson |
geographic_facet |
Arctic Hudson Bay Canada Hudson |
genre |
albedo Arctic Hudson Bay permafrost The Cryosphere Tundra |
genre_facet |
albedo Arctic Hudson Bay permafrost The Cryosphere Tundra |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-03529922 The Cryosphere, 2022, 16 (1), pp.127 - 142. ⟨10.5194/tc-16-127-2022⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-16-127-2022 hal-03529922 https://hal.science/hal-03529922 https://hal.science/hal-03529922/document https://hal.science/hal-03529922/file/tc-16-127-2022.pdf doi:10.5194/tc-16-127-2022 |
op_rights |
info:eu-repo/semantics/OpenAccess |
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 |
_version_ |
1802651537266180096 |
spelling |
ftmeteofrance:oai:HAL:hal-03529922v1 2024-06-23T07:45:08+00:00 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 Université Laval Québec (ULaval) Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) ANR-10-LABX-0056,OSUG@2020,Innovative strategies for observing and modelling natural systems(2010) 2022 https://hal.science/hal-03529922 https://hal.science/hal-03529922/document https://hal.science/hal-03529922/file/tc-16-127-2022.pdf https://doi.org/10.5194/tc-16-127-2022 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-16-127-2022 hal-03529922 https://hal.science/hal-03529922 https://hal.science/hal-03529922/document https://hal.science/hal-03529922/file/tc-16-127-2022.pdf doi:10.5194/tc-16-127-2022 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-03529922 The Cryosphere, 2022, 16 (1), pp.127 - 142. ⟨10.5194/tc-16-127-2022⟩ [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2022 ftmeteofrance https://doi.org/10.5194/tc-16-127-2022 2024-06-03T23:55:14Z International audience 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 Météo-France: HAL Arctic Hudson Bay Canada Hudson The Cryosphere 16 1 127 142 |