Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica
International audience In 2010, the joint French-United States Concordiasi project released 19 long-duration superpressure balloons from McMurdo Station, Antarctica. Four of these balloons carried a gondola with particle counters and temperature sensors to measure polar stratospheric clouds. One gon...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | https://hal.science/hal-01087722 https://hal.science/hal-01087722/document https://hal.science/hal-01087722/file/2013JD020326.pdf https://doi.org/10.1002/2013JD020326 |
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ftepunivpsaclay:oai:HAL:hal-01087722v1 2024-06-09T07:39:52+00:00 Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica Ward, S.M. Deshler, T. Hertzog, Albert Department of Atmospheric Science Laramie University of Wyoming (UW) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-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) 2014 https://hal.science/hal-01087722 https://hal.science/hal-01087722/document https://hal.science/hal-01087722/file/2013JD020326.pdf https://doi.org/10.1002/2013JD020326 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JD020326 hal-01087722 https://hal.science/hal-01087722 https://hal.science/hal-01087722/document https://hal.science/hal-01087722/file/2013JD020326.pdf doi:10.1002/2013JD020326 http://creativecommons.org/licenses/by-nc-sa/ info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-01087722 Journal of Geophysical Research: Atmospheres, 2014, 119 (1), pp.245-258. ⟨10.1002/2013JD020326⟩ [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2014 ftepunivpsaclay https://doi.org/10.1002/2013JD020326 2024-05-16T12:01:35Z International audience In 2010, the joint French-United States Concordiasi project released 19 long-duration superpressure balloons from McMurdo Station, Antarctica. Four of these balloons carried a gondola with particle counters and temperature sensors to measure polar stratospheric clouds. One gondola spent 5 days at stable temperatures between equilibrium temperatures for nitric acid trihydrate (NAT) and for supercooled ternary solution droplets. Sporadic particles with radii between 0.46 µm and 4.5 µm were measured in a small fraction of the measurements. At these times the corresponding size distributions and total particle volumes were consistent with NAT. Although the fraction of these observations was less than 3%, their frequency increased with time over the 5 days. From this frequency the NAT nucleation rate at 3°C below T NAT was estimated to be 2 × 10-4 m-3 s-1 ± 60% for these late winter austral NAT observations at a potential temperature of 410-415 K. Interspersed with these measurements of polar stratospheric cloud particles consistent with NAT were many more measurements of particles consistent with background stratospheric aerosol indicating that the polar stratospheric clouds sampled were highly discontinuous. Key Points Quasi-Lagrangian measurements of polar stratospheric cloud particles Balloon-borne measurements of nitric acid trihydrate formation © 2013. The Authors. Article in Journal/Newspaper Antarc* Antarctica École Polytechnique, Université Paris-Saclay: HAL Austral McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Journal of Geophysical Research: Atmospheres 119 1 245 258 |
institution |
Open Polar |
collection |
École Polytechnique, Université Paris-Saclay: HAL |
op_collection_id |
ftepunivpsaclay |
language |
English |
topic |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Ward, S.M. Deshler, T. Hertzog, Albert Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica |
topic_facet |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience In 2010, the joint French-United States Concordiasi project released 19 long-duration superpressure balloons from McMurdo Station, Antarctica. Four of these balloons carried a gondola with particle counters and temperature sensors to measure polar stratospheric clouds. One gondola spent 5 days at stable temperatures between equilibrium temperatures for nitric acid trihydrate (NAT) and for supercooled ternary solution droplets. Sporadic particles with radii between 0.46 µm and 4.5 µm were measured in a small fraction of the measurements. At these times the corresponding size distributions and total particle volumes were consistent with NAT. Although the fraction of these observations was less than 3%, their frequency increased with time over the 5 days. From this frequency the NAT nucleation rate at 3°C below T NAT was estimated to be 2 × 10-4 m-3 s-1 ± 60% for these late winter austral NAT observations at a potential temperature of 410-415 K. Interspersed with these measurements of polar stratospheric cloud particles consistent with NAT were many more measurements of particles consistent with background stratospheric aerosol indicating that the polar stratospheric clouds sampled were highly discontinuous. Key Points Quasi-Lagrangian measurements of polar stratospheric cloud particles Balloon-borne measurements of nitric acid trihydrate formation © 2013. The Authors. |
author2 |
Department of Atmospheric Science Laramie University of Wyoming (UW) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-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) |
format |
Article in Journal/Newspaper |
author |
Ward, S.M. Deshler, T. Hertzog, Albert |
author_facet |
Ward, S.M. Deshler, T. Hertzog, Albert |
author_sort |
Ward, S.M. |
title |
Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica |
title_short |
Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica |
title_full |
Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica |
title_fullStr |
Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica |
title_full_unstemmed |
Quasi-Lagrangian measurements of nitric acid trihydrate formation over Antarctica |
title_sort |
quasi-lagrangian measurements of nitric acid trihydrate formation over antarctica |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-01087722 https://hal.science/hal-01087722/document https://hal.science/hal-01087722/file/2013JD020326.pdf https://doi.org/10.1002/2013JD020326 |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
Austral McMurdo Station |
geographic_facet |
Austral McMurdo Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-01087722 Journal of Geophysical Research: Atmospheres, 2014, 119 (1), pp.245-258. ⟨10.1002/2013JD020326⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JD020326 hal-01087722 https://hal.science/hal-01087722 https://hal.science/hal-01087722/document https://hal.science/hal-01087722/file/2013JD020326.pdf doi:10.1002/2013JD020326 |
op_rights |
http://creativecommons.org/licenses/by-nc-sa/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2013JD020326 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
119 |
container_issue |
1 |
container_start_page |
245 |
op_container_end_page |
258 |
_version_ |
1801382674945802240 |