Soil moisture, wind speed and depth hoar formation in the Arctic snowpack
International audience Basal depth hoar that forms in Arctic snowpacks often has a low thermal conductivity, strongly contributing to the snowpack thermal insulance and impacting the permafrost thermal regime. At Ward Hunt Island (Canadian high Arctic, 83°05′N, 74°07′W) almost no depth hoar was obse...
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Online Access: | https://doi.org/10.1017/jog.2018.89 https://hal.archives-ouvertes.fr/hal-02393200/file/120-DomineJG2018.pdf https://hal.archives-ouvertes.fr/hal-02393200 |
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fttriple:oai:gotriple.eu:10670/1.mxlara 2023-05-15T14:43:53+02:00 Soil moisture, wind speed and depth hoar formation in the Arctic snowpack Domine, Florent BELKE-BREA, MARIA Sarrazin, Denis Arnaud, Laurent Barrere, Mathieu Poirier, Mathilde Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) Institut des Géosciences de l’Environnement (IGE) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Recherche pour le Développement (IRD)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) 2018-12-01 https://doi.org/10.1017/jog.2018.89 https://hal.archives-ouvertes.fr/hal-02393200/file/120-DomineJG2018.pdf https://hal.archives-ouvertes.fr/hal-02393200 en eng HAL CCSD International Glaciological Society hal-02393200 doi:10.1017/jog.2018.89 10670/1.mxlara https://hal.archives-ouvertes.fr/hal-02393200/file/120-DomineJG2018.pdf https://hal.archives-ouvertes.fr/hal-02393200 lic_creative-commons Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-1430 Journal of Glaciology Journal of Glaciology, International Glaciological Society, 2018, 64 (248), pp.990-1002. ⟨10.1017/jog.2018.89⟩ arctic snowpack convection permafrost thermal conductivity water vapor flux geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.1017/jog.2018.89 2023-01-22T17:03:21Z International audience Basal depth hoar that forms in Arctic snowpacks often has a low thermal conductivity, strongly contributing to the snowpack thermal insulance and impacting the permafrost thermal regime. At Ward Hunt Island (Canadian high Arctic, 83°05′N, 74°07′W) almost no depth hoar was observed in spring 2016 despite favorable thermal conditions. We hypothesize that depth hoar formation was impeded by the combination of two factors (1) strong winds in fall that formed hard dense wind slabs where water vapor transport was slow and (2) low soil moisture that led to rapid ground cooling with no zero-curtain period, which reduced soil temperature and the temperature gradient in the snowpack. Comparisons with detailed data from the subsequent winter at Ward Hunt and from Bylot Island (73°09′N, 80°00′W) and with data from Barrow and Alert indicate that both high wind speeds after snow onset and low soil moisture are necessary to prevent Arctic depth hoar formation. The role of con-vection to form depth hoar is discussed. A simple preliminary strategy to parameterize depth hoar thermal conductivity in snow schemes is proposed based on wind speed and soil moisture. Finally, warming-induced vegetation growth and soil moisture increase should reduce depth hoar thermal conductivity , potentially affecting permafrost temperature. Article in Journal/Newspaper Arctic Bylot Island Journal of Glaciology permafrost Ward Hunt Island Unknown Arctic Bylot Island Hunt Island ENVELOPE(-100.601,-100.601,58.788,58.788) Ward Hunt Island ENVELOPE(-74.161,-74.161,83.102,83.102) Journal of Glaciology 64 248 990 1002 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
arctic snowpack convection permafrost thermal conductivity water vapor flux geo envir |
spellingShingle |
arctic snowpack convection permafrost thermal conductivity water vapor flux geo envir Domine, Florent BELKE-BREA, MARIA Sarrazin, Denis Arnaud, Laurent Barrere, Mathieu Poirier, Mathilde Soil moisture, wind speed and depth hoar formation in the Arctic snowpack |
topic_facet |
arctic snowpack convection permafrost thermal conductivity water vapor flux geo envir |
description |
International audience Basal depth hoar that forms in Arctic snowpacks often has a low thermal conductivity, strongly contributing to the snowpack thermal insulance and impacting the permafrost thermal regime. At Ward Hunt Island (Canadian high Arctic, 83°05′N, 74°07′W) almost no depth hoar was observed in spring 2016 despite favorable thermal conditions. We hypothesize that depth hoar formation was impeded by the combination of two factors (1) strong winds in fall that formed hard dense wind slabs where water vapor transport was slow and (2) low soil moisture that led to rapid ground cooling with no zero-curtain period, which reduced soil temperature and the temperature gradient in the snowpack. Comparisons with detailed data from the subsequent winter at Ward Hunt and from Bylot Island (73°09′N, 80°00′W) and with data from Barrow and Alert indicate that both high wind speeds after snow onset and low soil moisture are necessary to prevent Arctic depth hoar formation. The role of con-vection to form depth hoar is discussed. A simple preliminary strategy to parameterize depth hoar thermal conductivity in snow schemes is proposed based on wind speed and soil moisture. Finally, warming-induced vegetation growth and soil moisture increase should reduce depth hoar thermal conductivity , potentially affecting permafrost temperature. |
author2 |
Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) Institut des Géosciences de l’Environnement (IGE) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Recherche pour le Développement (IRD)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) |
format |
Article in Journal/Newspaper |
author |
Domine, Florent BELKE-BREA, MARIA Sarrazin, Denis Arnaud, Laurent Barrere, Mathieu Poirier, Mathilde |
author_facet |
Domine, Florent BELKE-BREA, MARIA Sarrazin, Denis Arnaud, Laurent Barrere, Mathieu Poirier, Mathilde |
author_sort |
Domine, Florent |
title |
Soil moisture, wind speed and depth hoar formation in the Arctic snowpack |
title_short |
Soil moisture, wind speed and depth hoar formation in the Arctic snowpack |
title_full |
Soil moisture, wind speed and depth hoar formation in the Arctic snowpack |
title_fullStr |
Soil moisture, wind speed and depth hoar formation in the Arctic snowpack |
title_full_unstemmed |
Soil moisture, wind speed and depth hoar formation in the Arctic snowpack |
title_sort |
soil moisture, wind speed and depth hoar formation in the arctic snowpack |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://doi.org/10.1017/jog.2018.89 https://hal.archives-ouvertes.fr/hal-02393200/file/120-DomineJG2018.pdf https://hal.archives-ouvertes.fr/hal-02393200 |
long_lat |
ENVELOPE(-100.601,-100.601,58.788,58.788) ENVELOPE(-74.161,-74.161,83.102,83.102) |
geographic |
Arctic Bylot Island Hunt Island Ward Hunt Island |
geographic_facet |
Arctic Bylot Island Hunt Island Ward Hunt Island |
genre |
Arctic Bylot Island Journal of Glaciology permafrost Ward Hunt Island |
genre_facet |
Arctic Bylot Island Journal of Glaciology permafrost Ward Hunt Island |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-1430 Journal of Glaciology Journal of Glaciology, International Glaciological Society, 2018, 64 (248), pp.990-1002. ⟨10.1017/jog.2018.89⟩ |
op_relation |
hal-02393200 doi:10.1017/jog.2018.89 10670/1.mxlara https://hal.archives-ouvertes.fr/hal-02393200/file/120-DomineJG2018.pdf https://hal.archives-ouvertes.fr/hal-02393200 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.1017/jog.2018.89 |
container_title |
Journal of Glaciology |
container_volume |
64 |
container_issue |
248 |
container_start_page |
990 |
op_container_end_page |
1002 |
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1766315470830436352 |