Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville
International audience The Istituto di Ricerca sulle Onde Electromagnetiche (IROE) two-channel elastic backscattering lidar [Sacco et al., 1989], suitable for depolarization measurements, has been operated since January 8, 1989, at the French Antarctic base of Dumont d'Urville (66°40'S, 14...
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1991
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ftunivnantes:oai:HAL:insu-03052658v1 2023-05-15T14:00:55+02:00 Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville Stefanutti, Leopoldo Morandi, Marco del Guasta, Massimo Godin, Sophie Mégie, Gérard Brechet, Jacques Piquard, Jacques Istituto di Ricerca sulle Onde Elettromagnetiche “Nello Carrara” (IROE) Consiglio Nazionale delle Ricerche (CNR) Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 1991 https://hal-insu.archives-ouvertes.fr/insu-03052658 https://hal-insu.archives-ouvertes.fr/insu-03052658/document https://hal-insu.archives-ouvertes.fr/insu-03052658/file/ark%20_67375_WNG-B7M93B87-4.pdf https://doi.org/10.1029/91JD00776 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/91JD00776 insu-03052658 https://hal-insu.archives-ouvertes.fr/insu-03052658 https://hal-insu.archives-ouvertes.fr/insu-03052658/document https://hal-insu.archives-ouvertes.fr/insu-03052658/file/ark%20_67375_WNG-B7M93B87-4.pdf doi:10.1029/91JD00776 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal-insu.archives-ouvertes.fr/insu-03052658 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 1991, 96 (D7), pp.12975-12987. ⟨10.1029/91JD00776⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 1991 ftunivnantes https://doi.org/10.1029/91JD00776 2022-10-11T23:25:42Z International audience The Istituto di Ricerca sulle Onde Electromagnetiche (IROE) two-channel elastic backscattering lidar [Sacco et al., 1989], suitable for depolarization measurements, has been operated since January 8, 1989, at the French Antarctic base of Dumont d'Urville (66°40'S, 140°01'E). A continuous monitoring of the stratosphere was performed, which permitted measurement of the evolution of the background stratospheric aerosols and of polar stratospheric clouds (PSC) throughout the year. The data reported in this article correspond to the first year of measurements. Depolarization of the lidar signals was measured in order to obtain information on the type of clouds observed and on their particle size distribution. Both low (<10%) and high (>10%) depolarization ratios were detected, permitting discrimination between types Ia, Ib, and II PSC according to the classification given by Toon et al. (1990). Temporal continuity and high time resolution of the lidar measurements are evidence for altitude decreases in the PSC layers over periods of a few hours. These motions, if linked to sedimentation processes, led to values of velocity (≃10 cm s-1) compatible with large particles. Article in Journal/Newspaper Antarc* Antarctic Université de Nantes: HAL-UNIV-NANTES Antarctic Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) The Antarctic Journal of Geophysical Research 96 D7 12975 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Stefanutti, Leopoldo Morandi, Marco del Guasta, Massimo Godin, Sophie Mégie, Gérard Brechet, Jacques Piquard, Jacques Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience The Istituto di Ricerca sulle Onde Electromagnetiche (IROE) two-channel elastic backscattering lidar [Sacco et al., 1989], suitable for depolarization measurements, has been operated since January 8, 1989, at the French Antarctic base of Dumont d'Urville (66°40'S, 140°01'E). A continuous monitoring of the stratosphere was performed, which permitted measurement of the evolution of the background stratospheric aerosols and of polar stratospheric clouds (PSC) throughout the year. The data reported in this article correspond to the first year of measurements. Depolarization of the lidar signals was measured in order to obtain information on the type of clouds observed and on their particle size distribution. Both low (<10%) and high (>10%) depolarization ratios were detected, permitting discrimination between types Ia, Ib, and II PSC according to the classification given by Toon et al. (1990). Temporal continuity and high time resolution of the lidar measurements are evidence for altitude decreases in the PSC layers over periods of a few hours. These motions, if linked to sedimentation processes, led to values of velocity (≃10 cm s-1) compatible with large particles. |
author2 |
Istituto di Ricerca sulle Onde Elettromagnetiche “Nello Carrara” (IROE) Consiglio Nazionale delle Ricerche (CNR) Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Stefanutti, Leopoldo Morandi, Marco del Guasta, Massimo Godin, Sophie Mégie, Gérard Brechet, Jacques Piquard, Jacques |
author_facet |
Stefanutti, Leopoldo Morandi, Marco del Guasta, Massimo Godin, Sophie Mégie, Gérard Brechet, Jacques Piquard, Jacques |
author_sort |
Stefanutti, Leopoldo |
title |
Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville |
title_short |
Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville |
title_full |
Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville |
title_fullStr |
Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville |
title_full_unstemmed |
Polar stratospheric cloud observations over the Antarctic continent at Dumont d'Urville |
title_sort |
polar stratospheric cloud observations over the antarctic continent at dumont d'urville |
publisher |
HAL CCSD |
publishDate |
1991 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03052658 https://hal-insu.archives-ouvertes.fr/insu-03052658/document https://hal-insu.archives-ouvertes.fr/insu-03052658/file/ark%20_67375_WNG-B7M93B87-4.pdf https://doi.org/10.1029/91JD00776 |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(140.013,140.013,-66.667,-66.667) |
geographic |
Antarctic Dumont d'Urville Dumont-d'Urville The Antarctic |
geographic_facet |
Antarctic Dumont d'Urville Dumont-d'Urville The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal-insu.archives-ouvertes.fr/insu-03052658 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 1991, 96 (D7), pp.12975-12987. ⟨10.1029/91JD00776⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/91JD00776 insu-03052658 https://hal-insu.archives-ouvertes.fr/insu-03052658 https://hal-insu.archives-ouvertes.fr/insu-03052658/document https://hal-insu.archives-ouvertes.fr/insu-03052658/file/ark%20_67375_WNG-B7M93B87-4.pdf doi:10.1029/91JD00776 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/91JD00776 |
container_title |
Journal of Geophysical Research |
container_volume |
96 |
container_issue |
D7 |
container_start_page |
12975 |
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1766270304710033408 |