Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues
A total of 3 years of blowing-snow observations and associated meteorology along a 7 m mast at site D17 in coastal Adelie Land are presented. The observations are used to address three atmospheric-moisture issues related to the occurrence of blowing snow, a feature which largely affects many regions...
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00043727 2023-05-15T13:04:12+02:00 Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues Barral, H. Genthon, C. Trouvilliez, A. Brun, C. Amory, C. CNRS UMR 5183 LGGE GRENOBLE FRA CEREMA DTECEMF LGCE BREST FRA UNIVERSITE GRENOBLE ALPES UMR 5519 LEGI GRENOBLE FRA IRSTEA GRENOBLE UR ETGR FRA ADELIE 2014 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00043727 Anglais eng http://dx.doi.org/10.5194/tc-8-1905-2014 https://irsteadoc.irstea.fr/cemoa/PUB00043727 Date de dépôt: 2015-02-17 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 39450 TRANSPORT DE NEIGE PAR LE VENT SUBLIMATION ACCUMULATION DE NEIGE MANTEAU NEIGEUX HUMIDITE SURFACE MASS-BALANCE KATABATIC WINDS SCALAR TRANSFER ICE-SHEET MOISTURE DRIFTING SNOW Article de revue scientifique à comité de lecture 2014 ftcemoa https://doi.org/10.5194/tc-8-1905-2014 2021-06-29T10:54:43Z A total of 3 years of blowing-snow observations and associated meteorology along a 7 m mast at site D17 in coastal Adelie Land are presented. The observations are used to address three atmospheric-moisture issues related to the occurrence of blowing snow, a feature which largely affects many regions of Antarctica: ( 1) blowing-snow sublimation raises the moisture content of the surface atmosphere close to saturation, and atmospheric models and meteorological analyses that do not carry blowing-snow parameterizations are affected by a systematic dry bias; ( 2) while snowpack modelling with a parameterization of surface-snow erosion by wind can reproduce the variability of snow accumulation and ablation, ignoring the high levels of atmospheric-moisture content associated with blowing snow results in overestimating surface sublimation, affecting the energy budget of the snowpack; ( 3) the well-known profile method of calculating turbulent moisture fluxes is not applicable when blowing snow occurs, because moisture gradients are weak due to blowing-snow sublimation, and the impact of measurement uncertainties are strongly amplified in the case of strong winds. Article in Journal/Newspaper Adelie Land Antarc* Antarctica Ice Sheet Irstea Publications et Bases documentaires (Irstea@doc/CemOA) The Cryosphere 8 5 1905 1919 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
TRANSPORT DE NEIGE PAR LE VENT SUBLIMATION ACCUMULATION DE NEIGE MANTEAU NEIGEUX HUMIDITE SURFACE MASS-BALANCE KATABATIC WINDS SCALAR TRANSFER ICE-SHEET MOISTURE DRIFTING SNOW |
spellingShingle |
TRANSPORT DE NEIGE PAR LE VENT SUBLIMATION ACCUMULATION DE NEIGE MANTEAU NEIGEUX HUMIDITE SURFACE MASS-BALANCE KATABATIC WINDS SCALAR TRANSFER ICE-SHEET MOISTURE DRIFTING SNOW Barral, H. Genthon, C. Trouvilliez, A. Brun, C. Amory, C. Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues |
topic_facet |
TRANSPORT DE NEIGE PAR LE VENT SUBLIMATION ACCUMULATION DE NEIGE MANTEAU NEIGEUX HUMIDITE SURFACE MASS-BALANCE KATABATIC WINDS SCALAR TRANSFER ICE-SHEET MOISTURE DRIFTING SNOW |
description |
A total of 3 years of blowing-snow observations and associated meteorology along a 7 m mast at site D17 in coastal Adelie Land are presented. The observations are used to address three atmospheric-moisture issues related to the occurrence of blowing snow, a feature which largely affects many regions of Antarctica: ( 1) blowing-snow sublimation raises the moisture content of the surface atmosphere close to saturation, and atmospheric models and meteorological analyses that do not carry blowing-snow parameterizations are affected by a systematic dry bias; ( 2) while snowpack modelling with a parameterization of surface-snow erosion by wind can reproduce the variability of snow accumulation and ablation, ignoring the high levels of atmospheric-moisture content associated with blowing snow results in overestimating surface sublimation, affecting the energy budget of the snowpack; ( 3) the well-known profile method of calculating turbulent moisture fluxes is not applicable when blowing snow occurs, because moisture gradients are weak due to blowing-snow sublimation, and the impact of measurement uncertainties are strongly amplified in the case of strong winds. |
author2 |
CNRS UMR 5183 LGGE GRENOBLE FRA CEREMA DTECEMF LGCE BREST FRA UNIVERSITE GRENOBLE ALPES UMR 5519 LEGI GRENOBLE FRA IRSTEA GRENOBLE UR ETGR FRA |
format |
Article in Journal/Newspaper |
author |
Barral, H. Genthon, C. Trouvilliez, A. Brun, C. Amory, C. |
author_facet |
Barral, H. Genthon, C. Trouvilliez, A. Brun, C. Amory, C. |
author_sort |
Barral, H. |
title |
Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues |
title_short |
Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues |
title_full |
Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues |
title_fullStr |
Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues |
title_full_unstemmed |
Blowing snow in coastal Adelie Land, Antarctica: three atmospheric-moisture issues |
title_sort |
blowing snow in coastal adelie land, antarctica: three atmospheric-moisture issues |
publishDate |
2014 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00043727 |
op_coverage |
ADELIE |
genre |
Adelie Land Antarc* Antarctica Ice Sheet |
genre_facet |
Adelie Land Antarc* Antarctica Ice Sheet |
op_source |
39450 |
op_relation |
http://dx.doi.org/10.5194/tc-8-1905-2014 https://irsteadoc.irstea.fr/cemoa/PUB00043727 |
op_rights |
Date de dépôt: 2015-02-17 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
op_doi |
https://doi.org/10.5194/tc-8-1905-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1905 |
op_container_end_page |
1919 |
_version_ |
1766354476751388672 |