Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula
International audience We compare Gravity Waves (GW) and Polar Stratospheric Clouds (PSC) above the Antarctic Peninsula for winters (June to September) between 2006 and 2010. GW activity is inferred from stratospheric temperature and vertical winds from the Weather and Research Forecast mesoscale mo...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | https://hal.archives-ouvertes.fr/hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442/document https://hal.archives-ouvertes.fr/hal-01112442/file/jgrd17874.pdf https://doi.org/10.1029/2011JD017318 |
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ftunivnantes:oai:HAL:hal-01112442v1 2023-05-15T13:31:51+02:00 Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula Noel, V. Pitts, M. 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) NASA Langley Research Center Hampton (LaRC) 2012 https://hal.archives-ouvertes.fr/hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442/document https://hal.archives-ouvertes.fr/hal-01112442/file/jgrd17874.pdf https://doi.org/10.1029/2011JD017318 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2011JD017318 hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442/document https://hal.archives-ouvertes.fr/hal-01112442/file/jgrd17874.pdf doi:10.1029/2011JD017318 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.archives-ouvertes.fr/hal-01112442 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2012, 117 (D11), pp.D11207. ⟨10.1029/2011JD017318⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2012 ftunivnantes https://doi.org/10.1029/2011JD017318 2022-10-12T00:05:12Z International audience We compare Gravity Waves (GW) and Polar Stratospheric Clouds (PSC) above the Antarctic Peninsula for winters (June to September) between 2006 and 2010. GW activity is inferred from stratospheric temperature and vertical winds from the Weather and Research Forecast mesoscale model (WRF), and documented as a function of time and geography for the studied period. Significant GW activity affects 36% of days and follows the Peninsula orography closely. Volumes of PSC, composed of ice and Nitric Acid Trihydrate (NAT), are retrieved using observations from the spaceborne lidar CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization). They are documented against GW activity as a function of time and longitude. Sixty-three percent of ice PSC are observed during GW events, when the average volume of PSC per profile doubles. Maximum ice PSC volumes are seen directly over the Peninsula (65°W), while maximum NAT PSC volumes appear downstream further East (~35°W). Effects of GW events on NAT PSC are felt as far East as 40°E. Our results support the importance of gravity waves as a major mechanism driving the evolution of ice PSC in the area, but the effects on NAT PSC are harder to detect. After a GW event ends, volumes of ice PSC get back to their usual levels in less than 24 h, while this process takes more than 48 h for NAT PSC. Daily profiles of H2O and HNO 3 mixing ratios, retrieved from MLS observations, are used to derive ice and NAT frost points with altitude and time. Combining these frost points with modeled stratospheric temperatures, the volumes of air able to support ice and NAT crystals are quantified and compared with PSC volumes. Correlation is high for ice crystals, but not for NAT, consistent with their much slower nucleation mechanisms. Observations of ice PSC over the domain are followed by a strong increase (+50-100%) in NAT PSC formation efficiency 2 to 6 h later. This increase is followed by a steep drop (6-10 h later) and a longer period of slow decline (10-24 h later), at the ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Université de Nantes: HAL-UNIV-NANTES Antarctic Antarctic Peninsula The Antarctic Journal of Geophysical Research: Atmospheres 117 D11 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Noel, V. Pitts, M. Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience We compare Gravity Waves (GW) and Polar Stratospheric Clouds (PSC) above the Antarctic Peninsula for winters (June to September) between 2006 and 2010. GW activity is inferred from stratospheric temperature and vertical winds from the Weather and Research Forecast mesoscale model (WRF), and documented as a function of time and geography for the studied period. Significant GW activity affects 36% of days and follows the Peninsula orography closely. Volumes of PSC, composed of ice and Nitric Acid Trihydrate (NAT), are retrieved using observations from the spaceborne lidar CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization). They are documented against GW activity as a function of time and longitude. Sixty-three percent of ice PSC are observed during GW events, when the average volume of PSC per profile doubles. Maximum ice PSC volumes are seen directly over the Peninsula (65°W), while maximum NAT PSC volumes appear downstream further East (~35°W). Effects of GW events on NAT PSC are felt as far East as 40°E. Our results support the importance of gravity waves as a major mechanism driving the evolution of ice PSC in the area, but the effects on NAT PSC are harder to detect. After a GW event ends, volumes of ice PSC get back to their usual levels in less than 24 h, while this process takes more than 48 h for NAT PSC. Daily profiles of H2O and HNO 3 mixing ratios, retrieved from MLS observations, are used to derive ice and NAT frost points with altitude and time. Combining these frost points with modeled stratospheric temperatures, the volumes of air able to support ice and NAT crystals are quantified and compared with PSC volumes. Correlation is high for ice crystals, but not for NAT, consistent with their much slower nucleation mechanisms. Observations of ice PSC over the domain are followed by a strong increase (+50-100%) in NAT PSC formation efficiency 2 to 6 h later. This increase is followed by a steep drop (6-10 h later) and a longer period of slow decline (10-24 h later), at the ... |
author2 |
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) NASA Langley Research Center Hampton (LaRC) |
format |
Article in Journal/Newspaper |
author |
Noel, V. Pitts, M. |
author_facet |
Noel, V. Pitts, M. |
author_sort |
Noel, V. |
title |
Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula |
title_short |
Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula |
title_full |
Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula |
title_fullStr |
Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula |
title_full_unstemmed |
Gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the Antarctic Peninsula |
title_sort |
gravity wave events from mesoscale simulations, compared to polar stratospheric clouds observed from spaceborne lidar over the antarctic peninsula |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.archives-ouvertes.fr/hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442/document https://hal.archives-ouvertes.fr/hal-01112442/file/jgrd17874.pdf https://doi.org/10.1029/2011JD017318 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.archives-ouvertes.fr/hal-01112442 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2012, 117 (D11), pp.D11207. ⟨10.1029/2011JD017318⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2011JD017318 hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442 https://hal.archives-ouvertes.fr/hal-01112442/document https://hal.archives-ouvertes.fr/hal-01112442/file/jgrd17874.pdf doi:10.1029/2011JD017318 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2011JD017318 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
117 |
container_issue |
D11 |
_version_ |
1766021457216798720 |