Water vapor in cold and clean atmosphere: a 3-year data set in the boundary layer of Dome C, East Antarctic Plateau
Abstract. 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 meteorologic...
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Online Access: | https://hal.science/hal-04246493 https://doi.org/10.5194/essd-14-1571-2022 |
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ftecoleponts:oai:HAL:hal-04246493v1 2023-11-12T04:08:00+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 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) OSUG GLACIOCLIM ObservatoryIPEV CALVA project 2022 https://hal.science/hal-04246493 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 hal-04246493 https://hal.science/hal-04246493 doi:10.5194/essd-14-1571-2022 ISSN: 1866-3508 Earth System Science Data https://hal.science/hal-04246493 Earth System Science Data, 2022, 14 (4), pp.1571-1580. ⟨10.5194/essd-14-1571-2022⟩ [SDE]Environmental Sciences [PHYS]Physics [physics] info:eu-repo/semantics/article Journal articles 2022 ftecoleponts https://doi.org/10.5194/essd-14-1571-2022 2023-10-18T16:14:34Z Abstract. 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 École des Ponts ParisTech: HAL 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 |
collection |
École des Ponts ParisTech: HAL |
op_collection_id |
ftecoleponts |
language |
English |
topic |
[SDE]Environmental Sciences [PHYS]Physics [physics] |
spellingShingle |
[SDE]Environmental Sciences [PHYS]Physics [physics] Genthon, Christophe Veron, Dana 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 |
[SDE]Environmental Sciences [PHYS]Physics [physics] |
description |
Abstract. 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) OSUG GLACIOCLIM ObservatoryIPEV CALVA project |
format |
Article in Journal/Newspaper |
author |
Genthon, Christophe Veron, Dana Vignon, Etienne Madeleine, Jean-Baptiste Piard, Luc |
author_facet |
Genthon, Christophe Veron, Dana 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://hal.science/hal-04246493 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://hal.science/hal-04246493 Earth System Science Data, 2022, 14 (4), pp.1571-1580. ⟨10.5194/essd-14-1571-2022⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/essd-14-1571-2022 hal-04246493 https://hal.science/hal-04246493 doi:10.5194/essd-14-1571-2022 |
op_doi |
https://doi.org/10.5194/essd-14-1571-2022 |
container_title |
Earth System Science Data |
container_volume |
14 |
container_issue |
4 |
container_start_page |
1571 |
op_container_end_page |
1580 |
_version_ |
1782328443580448768 |