Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere
International audience This publication provides a detailed study of one cirrus cloud observed by lidar at the Observatory of Haute-Provence (∼44°N) in January 2006 in the vicinity of the tropopause (12–14 km/∼136–190 hPa/328–355 K). The higher part of the air mass observed comes from the wet subtro...
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Online Access: | https://hal.archives-ouvertes.fr/hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611/document https://hal.archives-ouvertes.fr/hal-00448611/file/Montoux_et_al-2010-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf https://doi.org/10.1029/2009JD011981 |
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ftunivnantes:oai:HAL:hal-00448611v1 2023-05-15T17:35:46+02:00 Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere Montoux, Nadège Keckhut, Philippe Hauchecorne, Alain Jumelet, Julien Brogniez, Hélène David, Christine STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) 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)-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) SPACE - LATMOS European Commission European Project: 505390-GOCECT- 2004,SCOUT-03 2010 https://hal.archives-ouvertes.fr/hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611/document https://hal.archives-ouvertes.fr/hal-00448611/file/Montoux_et_al-2010-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf https://doi.org/10.1029/2009JD011981 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2009JD011981 info:eu-repo/grantAgreement//505390-GOCECT- 2004/EU/SCOUT-O3 project/SCOUT-03 hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611/document https://hal.archives-ouvertes.fr/hal-00448611/file/Montoux_et_al-2010-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf doi:10.1029/2009JD011981 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.archives-ouvertes.fr/hal-00448611 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2010, 115 (D2), pp.D02202. ⟨10.1029/2009JD011981⟩ Cirrus clouds Water vapor Isentropic transport [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2010 ftunivnantes https://doi.org/10.1029/2009JD011981 2022-10-12T00:01:19Z International audience This publication provides a detailed study of one cirrus cloud observed by lidar at the Observatory of Haute-Provence (∼44°N) in January 2006 in the vicinity of the tropopause (12–14 km/∼136–190 hPa/328–355 K). The higher part of the air mass observed comes from the wet subtropics while the lower part comes from the midlatitudes. Both are advected by the Azores anticyclone, encounter cold temperatures (∼205 K) above the North Atlantic Ocean, and flow eastward along the anticyclonic flank of the polar jet stream. A simulation of this cloud by an isentropic model is tested to see if synoptic-scale atmospheric structures could explain by itself the presence of such clouds. The developments made in the Modélisation Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection (MIMOSA) model to take into account the three phases of water and their interactions allow reproduction of the occurrence of the cirrus and its temporal evolution. MIMOSA-H 2 O reproduces the atmospheric water vapor structures observed with Atmospheric Infrared Sounder (AIRS) with, however, an apparent wet bias of around 50%. Reliable water vapor fields appear to be the main condition to correctly simulate such cirrus clouds. The model reproduces the cirrus cloud altitude for fall speeds around 1 cm/s and gives ice water content around 3–4 mg/m 3 . Fall speed is also a critical parameter, and a better parameterization with altitude or other atmospheric conditions in the modeling of such cirrus clouds is required. This study also shows that supersaturation threshold impacts strongly the vertical and horizontal extension of the cirrus cloud but more slightly the ice water path. Article in Journal/Newspaper North Atlantic Université de Nantes: HAL-UNIV-NANTES Journal of Geophysical Research 115 D2 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Cirrus clouds Water vapor Isentropic transport [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
Cirrus clouds Water vapor Isentropic transport [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Montoux, Nadège Keckhut, Philippe Hauchecorne, Alain Jumelet, Julien Brogniez, Hélène David, Christine Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
topic_facet |
Cirrus clouds Water vapor Isentropic transport [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience This publication provides a detailed study of one cirrus cloud observed by lidar at the Observatory of Haute-Provence (∼44°N) in January 2006 in the vicinity of the tropopause (12–14 km/∼136–190 hPa/328–355 K). The higher part of the air mass observed comes from the wet subtropics while the lower part comes from the midlatitudes. Both are advected by the Azores anticyclone, encounter cold temperatures (∼205 K) above the North Atlantic Ocean, and flow eastward along the anticyclonic flank of the polar jet stream. A simulation of this cloud by an isentropic model is tested to see if synoptic-scale atmospheric structures could explain by itself the presence of such clouds. The developments made in the Modélisation Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection (MIMOSA) model to take into account the three phases of water and their interactions allow reproduction of the occurrence of the cirrus and its temporal evolution. MIMOSA-H 2 O reproduces the atmospheric water vapor structures observed with Atmospheric Infrared Sounder (AIRS) with, however, an apparent wet bias of around 50%. Reliable water vapor fields appear to be the main condition to correctly simulate such cirrus clouds. The model reproduces the cirrus cloud altitude for fall speeds around 1 cm/s and gives ice water content around 3–4 mg/m 3 . Fall speed is also a critical parameter, and a better parameterization with altitude or other atmospheric conditions in the modeling of such cirrus clouds is required. This study also shows that supersaturation threshold impacts strongly the vertical and horizontal extension of the cirrus cloud but more slightly the ice water path. |
author2 |
STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) 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)-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) SPACE - LATMOS European Commission European Project: 505390-GOCECT- 2004,SCOUT-03 |
format |
Article in Journal/Newspaper |
author |
Montoux, Nadège Keckhut, Philippe Hauchecorne, Alain Jumelet, Julien Brogniez, Hélène David, Christine |
author_facet |
Montoux, Nadège Keckhut, Philippe Hauchecorne, Alain Jumelet, Julien Brogniez, Hélène David, Christine |
author_sort |
Montoux, Nadège |
title |
Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
title_short |
Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
title_full |
Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
title_fullStr |
Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
title_full_unstemmed |
Isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
title_sort |
isentropic modeling of a cirrus cloud event observed in the midlatitude upper troposphere and lower stratosphere |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611/document https://hal.archives-ouvertes.fr/hal-00448611/file/Montoux_et_al-2010-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf https://doi.org/10.1029/2009JD011981 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.archives-ouvertes.fr/hal-00448611 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2010, 115 (D2), pp.D02202. ⟨10.1029/2009JD011981⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2009JD011981 info:eu-repo/grantAgreement//505390-GOCECT- 2004/EU/SCOUT-O3 project/SCOUT-03 hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611 https://hal.archives-ouvertes.fr/hal-00448611/document https://hal.archives-ouvertes.fr/hal-00448611/file/Montoux_et_al-2010-Journal_of_Geophysical_Research__Solid_Earth_%281978-2012%29.pdf doi:10.1029/2009JD011981 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2009JD011981 |
container_title |
Journal of Geophysical Research |
container_volume |
115 |
container_issue |
D2 |
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1766135046091046912 |