Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack
International audience In polar deserts, depth hoar (hereinafter: DH) growth is not systematic unlike on tundra and this is critical for snowpack properties. Here, we address the spatio-temporal variability of the DH layer in the polar desert at two sites in the Canadian High Arctic: Ward Hunt Islan...
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Online Access: | https://doi.org/10.1017/jog.2021.105 https://hal.archives-ouvertes.fr/hal-03427894/file/135-DavesneJG2021.pdf https://hal.archives-ouvertes.fr/hal-03427894 |
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fttriple:oai:gotriple.eu:10670/1.puiti3 2023-05-15T14:57:12+02:00 Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack Davesne, Gautier Domine, Florent Fortier, Daniel Takuvik Joint International Laboratory ULAVAL-CNRS Centre National de la Recherche Scientifique (CNRS)-Université Laval Québec (ULaval) 2021-09-27 https://doi.org/10.1017/jog.2021.105 https://hal.archives-ouvertes.fr/hal-03427894/file/135-DavesneJG2021.pdf https://hal.archives-ouvertes.fr/hal-03427894 en eng HAL CCSD International Glaciological Society hal-03427894 doi:10.1017/jog.2021.105 10670/1.puiti3 https://hal.archives-ouvertes.fr/hal-03427894/file/135-DavesneJG2021.pdf https://hal.archives-ouvertes.fr/hal-03427894 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-1430 Journal of Glaciology Journal of Glaciology, International Glaciological Society, 2021, pp.1 - 16. ⟨10.1017/jog.2021.105⟩ thermal conductivity polar desert soil moisture depth hoar Arctic snowpack geo demo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.1017/jog.2021.105 2023-01-22T18:25:28Z International audience In polar deserts, depth hoar (hereinafter: DH) growth is not systematic unlike on tundra and this is critical for snowpack properties. Here, we address the spatio-temporal variability of the DH layer in the polar desert at two sites in the Canadian High Arctic: Ward Hunt Island (83°N) and Resolute Bay (75°N). Our data show that, over humid areas, DH represented a larger fraction of the snowpack and was characterized by lower density and coarser crystals than over dry gravelly areas. Increased soil moisture extends the zero-curtain period during freeze-up, leading to stronger temperature gradients in the snowpack and greater kinetic metamorphism. Our results also demonstrate that the large inter-annual variability in DH is primarily driven by wind conditions in the fall since this key variable controls the initial snow density and snow onset date. These strong controls exerted by soil moisture and meteorological conditions on DH growth in polar deserts highlight the possibility of major changes in polar snowpacks physical properties in response to the rapid climate and environmental changes currently affecting these regions. Article in Journal/Newspaper Arctic Journal of Glaciology polar desert Resolute Bay Tundra Ward Hunt Island Unknown Arctic Hunt Island ENVELOPE(-100.601,-100.601,58.788,58.788) Resolute Bay ENVELOPE(-94.842,-94.842,74.677,74.677) Ward Hunt Island ENVELOPE(-74.161,-74.161,83.102,83.102) Journal of Glaciology 68 269 457 472 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
thermal conductivity polar desert soil moisture depth hoar Arctic snowpack geo demo |
spellingShingle |
thermal conductivity polar desert soil moisture depth hoar Arctic snowpack geo demo Davesne, Gautier Domine, Florent Fortier, Daniel Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
topic_facet |
thermal conductivity polar desert soil moisture depth hoar Arctic snowpack geo demo |
description |
International audience In polar deserts, depth hoar (hereinafter: DH) growth is not systematic unlike on tundra and this is critical for snowpack properties. Here, we address the spatio-temporal variability of the DH layer in the polar desert at two sites in the Canadian High Arctic: Ward Hunt Island (83°N) and Resolute Bay (75°N). Our data show that, over humid areas, DH represented a larger fraction of the snowpack and was characterized by lower density and coarser crystals than over dry gravelly areas. Increased soil moisture extends the zero-curtain period during freeze-up, leading to stronger temperature gradients in the snowpack and greater kinetic metamorphism. Our results also demonstrate that the large inter-annual variability in DH is primarily driven by wind conditions in the fall since this key variable controls the initial snow density and snow onset date. These strong controls exerted by soil moisture and meteorological conditions on DH growth in polar deserts highlight the possibility of major changes in polar snowpacks physical properties in response to the rapid climate and environmental changes currently affecting these regions. |
author2 |
Takuvik Joint International Laboratory ULAVAL-CNRS Centre National de la Recherche Scientifique (CNRS)-Université Laval Québec (ULaval) |
format |
Article in Journal/Newspaper |
author |
Davesne, Gautier Domine, Florent Fortier, Daniel |
author_facet |
Davesne, Gautier Domine, Florent Fortier, Daniel |
author_sort |
Davesne, Gautier |
title |
Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
title_short |
Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
title_full |
Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
title_fullStr |
Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
title_full_unstemmed |
Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
title_sort |
effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://doi.org/10.1017/jog.2021.105 https://hal.archives-ouvertes.fr/hal-03427894/file/135-DavesneJG2021.pdf https://hal.archives-ouvertes.fr/hal-03427894 |
long_lat |
ENVELOPE(-100.601,-100.601,58.788,58.788) ENVELOPE(-94.842,-94.842,74.677,74.677) ENVELOPE(-74.161,-74.161,83.102,83.102) |
geographic |
Arctic Hunt Island Resolute Bay Ward Hunt Island |
geographic_facet |
Arctic Hunt Island Resolute Bay Ward Hunt Island |
genre |
Arctic Journal of Glaciology polar desert Resolute Bay Tundra Ward Hunt Island |
genre_facet |
Arctic Journal of Glaciology polar desert Resolute Bay Tundra 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, 2021, pp.1 - 16. ⟨10.1017/jog.2021.105⟩ |
op_relation |
hal-03427894 doi:10.1017/jog.2021.105 10670/1.puiti3 https://hal.archives-ouvertes.fr/hal-03427894/file/135-DavesneJG2021.pdf https://hal.archives-ouvertes.fr/hal-03427894 |
op_rights |
other |
op_doi |
https://doi.org/10.1017/jog.2021.105 |
container_title |
Journal of Glaciology |
container_volume |
68 |
container_issue |
269 |
container_start_page |
457 |
op_container_end_page |
472 |
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1766329281658486784 |