Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat

We have analysed MIPAS (Michelson Interferometer for Passive Atmopheric Sounding) infrared measurements of PMCs for the summer seasons in the Northern (NH) and Southern (SH) hemispheres from 2005 to 2012. Measurements of PMCs using this technique are very useful because they are sensitive to the tot...

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Autores: García Comas, Maia, López-Puertas, Manuel, Funke, Bernd, Jurado Navarro, Ángel Aythami, Gardini, Angela, Stiller, GP, von Clarmann, T, Hopfner, M
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/135162
Acceso en línea:http://hdl.handle.net/10261/135162
Access Level:acceso abierto
Palabra clave:Polar mesospheric clouds
MIPAS/Envisat
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spelling Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/EnvisatGarcía Comas, MaiaLópez-Puertas, ManuelFunke, BerndJurado Navarro, Ángel AythamiGardini, AngelaStiller, GPvon Clarmann, THopfner, MPolar mesospheric cloudsMIPAS/Envisatddc:550We have analysed MIPAS (Michelson Interferometer for Passive Atmopheric Sounding) infrared measurements of PMCs for the summer seasons in the Northern (NH) and Southern (SH) hemispheres from 2005 to 2012. Measurements of PMCs using this technique are very useful because they are sensitive to the total ice volume and independent of particle size. For the first time, MIPAS has provided coverage of the PMC total ice volume from midlatitudes to the poles. MIPAS measurements indicate the existence of a continuous layer of mesospheric ice, extending from about similar to 81aEuro-km up to about 88-89aEuro-km on average and from the poles to about 50-60A degrees in each hemisphere, increasing in concentration with proximity to the poles. We have found that the ice concentration is larger in the Northern Hemisphere than in the Southern Hemisphere. The ratio between the ice water content (IWC) in both hemispheres is also latitude-dependent, varying from a NHaEuro-a center dot aEuro-SH ratio of 1.4 close to the poles to a factor of 2.1 around 60A degrees. This also implies that PMCs extend to lower latitudes in the NH. A very clear feature of the MIPAS observations is that PMCs tend to be at higher altitudes with increasing distance from the polar region (in both hemispheres), particularly equatorwards of 70A degrees, and that they are about 1aEuro-km higher in the SH than in the NH. The difference between the mean altitude of the PMC layer and the mesopause altitude increases towards the poles and is larger in the NH than in the SH. The PMC layers are denser and wider when the frost-point temperature occurs at lower altitudes. The layered water vapour structure caused by sequestration and sublimation of PMCs is present at latitudes northwards of 70A degrees aEuro-N and more pronounced towards the pole. Finally, MIPAS observations have also shown a clear impact of the migrating diurnal tide on the diurnal variation of the PMC volume ice density.The IAA team was supported by the Spanish MICINN under the project ESP2014-54362-P and EC FEDER funds. MGC was financially supported by the MINECO under its "Ramon y Cajal" sub-programme.Peer reviewedCopernicus PublicationsMinisterio de Ciencia e Innovación (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/135162reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2014-54362-Phttp://dx.doi.org/10.5194/acp-16-6701-2016Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1351622026-05-22T06:33:51Z
dc.title.none.fl_str_mv Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
title Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
spellingShingle Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
García Comas, Maia
Polar mesospheric clouds
MIPAS/Envisat
ddc:550
title_short Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
title_full Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
title_fullStr Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
title_full_unstemmed Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
title_sort Measurements of global distributions of polar mesospheric clouds during 2005–2012 by MIPAS/Envisat
dc.creator.none.fl_str_mv García Comas, Maia
López-Puertas, Manuel
Funke, Bernd
Jurado Navarro, Ángel Aythami
Gardini, Angela
Stiller, GP
von Clarmann, T
Hopfner, M
author García Comas, Maia
author_facet García Comas, Maia
López-Puertas, Manuel
Funke, Bernd
Jurado Navarro, Ángel Aythami
Gardini, Angela
Stiller, GP
von Clarmann, T
Hopfner, M
author_role author
author2 López-Puertas, Manuel
Funke, Bernd
Jurado Navarro, Ángel Aythami
Gardini, Angela
Stiller, GP
von Clarmann, T
Hopfner, M
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Polar mesospheric clouds
MIPAS/Envisat
ddc:550
topic Polar mesospheric clouds
MIPAS/Envisat
ddc:550
description We have analysed MIPAS (Michelson Interferometer for Passive Atmopheric Sounding) infrared measurements of PMCs for the summer seasons in the Northern (NH) and Southern (SH) hemispheres from 2005 to 2012. Measurements of PMCs using this technique are very useful because they are sensitive to the total ice volume and independent of particle size. For the first time, MIPAS has provided coverage of the PMC total ice volume from midlatitudes to the poles. MIPAS measurements indicate the existence of a continuous layer of mesospheric ice, extending from about similar to 81aEuro-km up to about 88-89aEuro-km on average and from the poles to about 50-60A degrees in each hemisphere, increasing in concentration with proximity to the poles. We have found that the ice concentration is larger in the Northern Hemisphere than in the Southern Hemisphere. The ratio between the ice water content (IWC) in both hemispheres is also latitude-dependent, varying from a NHaEuro-a center dot aEuro-SH ratio of 1.4 close to the poles to a factor of 2.1 around 60A degrees. This also implies that PMCs extend to lower latitudes in the NH. A very clear feature of the MIPAS observations is that PMCs tend to be at higher altitudes with increasing distance from the polar region (in both hemispheres), particularly equatorwards of 70A degrees, and that they are about 1aEuro-km higher in the SH than in the NH. The difference between the mean altitude of the PMC layer and the mesopause altitude increases towards the poles and is larger in the NH than in the SH. The PMC layers are denser and wider when the frost-point temperature occurs at lower altitudes. The layered water vapour structure caused by sequestration and sublimation of PMCs is present at latitudes northwards of 70A degrees aEuro-N and more pronounced towards the pole. Finally, MIPAS observations have also shown a clear impact of the migrating diurnal tide on the diurnal variation of the PMC volume ice density.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/135162
url http://hdl.handle.net/10261/135162
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2014-54362-P
http://dx.doi.org/10.5194/acp-16-6701-2016
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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