Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau
International audience The air at the surface of the high Antarctic Plateau is very cold, dry and clean. Under such conditions, the atmospheric moisture can significantly deviate from thermodynamic equilibrium, and supersaturation with respect to ice can occur. Most conventional humidity sensors for...
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Online Access: | https://insu.hal.science/insu-03706378 https://insu.hal.science/insu-03706378/document https://insu.hal.science/insu-03706378/file/essd-14-1571-2022.pdf https://doi.org/10.5194/essd-14-1571-2022 |
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ftccsdartic:oai:HAL:insu-03706378v1 2023-12-17T10:22:12+01:00 Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau Genthon, Christophe Veron, Dana E. Vignon, Etienne Madeleine, Jean-Baptiste Piard, Luc Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) 2022 https://insu.hal.science/insu-03706378 https://insu.hal.science/insu-03706378/document https://insu.hal.science/insu-03706378/file/essd-14-1571-2022.pdf https://doi.org/10.5194/essd-14-1571-2022 en eng HAL CCSD Copernicus Publications info:eu-repo/semantics/altIdentifier/doi/10.5194/essd-14-1571-2022 insu-03706378 https://insu.hal.science/insu-03706378 https://insu.hal.science/insu-03706378/document https://insu.hal.science/insu-03706378/file/essd-14-1571-2022.pdf BIBCODE: 2022ESSD.14.1571G doi:10.5194/essd-14-1571-2022 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1866-3508 Earth System Science Data https://insu.hal.science/insu-03706378 Earth System Science Data, 2022, 14, pp.1571-1580. ⟨10.5194/essd-14-1571-2022⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2022 ftccsdartic https://doi.org/10.5194/essd-14-1571-2022 2023-11-19T00:08:22Z International audience The air at the surface of the high Antarctic Plateau is very cold, dry and clean. Under such conditions, the atmospheric moisture can significantly deviate from thermodynamic equilibrium, and supersaturation with respect to ice can occur. Most conventional humidity sensors for meteorological applications cannot report supersaturation in this environment. A simple approach for measuring supersaturation using conventional instruments, with one being operated in a heated airflow, is presented. Since 2018, this instrumental setup has been deployed at three levels in the lower ∼40 m above the surface at Dome C on the high Antarctic Plateau. A resulting 3-year (2018-2020) record (Genthon et al., 2021a) is presented and analyzed for features such as the frequency of supersaturation with respect to ice, diurnal and seasonal variability, and vertical distribution. As supercooled liquid water droplets are frequently observed in clouds at the temperatures experienced on the high Antarctic Plateau, the distribution of relative humidity with respect to liquid water at Dome C is also discussed. It is suggested that, while not strictly mimicking the conditions of the high troposphere, the surface atmosphere on the Antarctic Plateau is a convenient natural laboratory to test parametrizations of cold microphysics predominantly developed to handle the genesis of high tropospheric clouds. Data are available from the PANGAEA data repository at https://doi.org/10.1594/PANGAEA.939425 (Genthon et al., 2021a). Article in Journal/Newspaper Antarc* Antarctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Handle The ENVELOPE(161.983,161.983,-78.000,-78.000) The Antarctic Earth System Science Data 14 4 1571 1580 |
institution |
Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Genthon, Christophe Veron, Dana E. Vignon, Etienne Madeleine, Jean-Baptiste Piard, Luc Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience The air at the surface of the high Antarctic Plateau is very cold, dry and clean. Under such conditions, the atmospheric moisture can significantly deviate from thermodynamic equilibrium, and supersaturation with respect to ice can occur. Most conventional humidity sensors for meteorological applications cannot report supersaturation in this environment. A simple approach for measuring supersaturation using conventional instruments, with one being operated in a heated airflow, is presented. Since 2018, this instrumental setup has been deployed at three levels in the lower ∼40 m above the surface at Dome C on the high Antarctic Plateau. A resulting 3-year (2018-2020) record (Genthon et al., 2021a) is presented and analyzed for features such as the frequency of supersaturation with respect to ice, diurnal and seasonal variability, and vertical distribution. As supercooled liquid water droplets are frequently observed in clouds at the temperatures experienced on the high Antarctic Plateau, the distribution of relative humidity with respect to liquid water at Dome C is also discussed. It is suggested that, while not strictly mimicking the conditions of the high troposphere, the surface atmosphere on the Antarctic Plateau is a convenient natural laboratory to test parametrizations of cold microphysics predominantly developed to handle the genesis of high tropospheric clouds. Data are available from the PANGAEA data repository at https://doi.org/10.1594/PANGAEA.939425 (Genthon et al., 2021a). |
author2 |
Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Genthon, Christophe Veron, Dana E. Vignon, Etienne Madeleine, Jean-Baptiste Piard, Luc |
author_facet |
Genthon, Christophe Veron, Dana E. Vignon, Etienne Madeleine, Jean-Baptiste Piard, Luc |
author_sort |
Genthon, Christophe |
title |
Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau |
title_short |
Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau |
title_full |
Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau |
title_fullStr |
Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau |
title_full_unstemmed |
Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau |
title_sort |
water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of dome c, east antarctic plateau |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03706378 https://insu.hal.science/insu-03706378/document https://insu.hal.science/insu-03706378/file/essd-14-1571-2022.pdf https://doi.org/10.5194/essd-14-1571-2022 |
long_lat |
ENVELOPE(161.983,161.983,-78.000,-78.000) |
geographic |
Antarctic Handle The The Antarctic |
geographic_facet |
Antarctic Handle The The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 1866-3508 Earth System Science Data https://insu.hal.science/insu-03706378 Earth System Science Data, 2022, 14, pp.1571-1580. ⟨10.5194/essd-14-1571-2022⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/essd-14-1571-2022 insu-03706378 https://insu.hal.science/insu-03706378 https://insu.hal.science/insu-03706378/document https://insu.hal.science/insu-03706378/file/essd-14-1571-2022.pdf BIBCODE: 2022ESSD.14.1571G doi:10.5194/essd-14-1571-2022 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/essd-14-1571-2022 |
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Earth System Science Data |
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14 |
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4 |
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