Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?

A significant wave activity in the upper troposphere and lower stratosphere at midlatitudes (30-40S) above the Andes Range was recently detected from Global Positioning System Radio Occultation (GPS RO) temperature profiles, retrieved from SAC-C (Satélite de Aplicaciones Cientficas-C and CHAMP (CHAl...

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Detalles Bibliográficos
Autores: de la Torre, A., Alexander, P.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:Argentina
Institución:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
Repositorio:Biblioteca Digital (UBA-FCEN)
Idioma:inglés
OAI Identifier:paperaa:paper_00948276_v32_n17_p1_delaTorre
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00948276_v32_n17_p1_delaTorre
Access Level:acceso abierto
Palabra clave:Atmospheric temperature
Climatology
Global positioning system
Upper atmosphere
Weather satellites
Mountain waves
Radio occultation
Gravity waves
atmospheric wave
GPS
gravity wave
temperature profile
Andes
South America
Western Hemisphere
World
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spelling Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?de la Torre, A.Alexander, P.Atmospheric temperatureClimatologyGlobal positioning systemUpper atmosphereWeather satellitesMountain wavesRadio occultationGravity wavesatmospheric waveGPSgravity wavetemperature profileAndesSouth AmericaWestern HemisphereWorldA significant wave activity in the upper troposphere and lower stratosphere at midlatitudes (30-40S) above the Andes Range was recently detected from Global Positioning System Radio Occultation (GPS RO) temperature profiles, retrieved from SAC-C (Satélite de Aplicaciones Cientficas-C and CHAMP (CHAllenging Minisatellite Payload) satellites. Previously, large amplitude, long vertical wavelength structures have been reported in this region, as detected from other limb-sounding devices and have been identified as mountain waves (MWs). The capability of GPS RO observations to detect typical MWs with horizontal wavelengths shorter than 150 km, as well as the proper association of the observed wave activity to mountain forcing is put in doubt. Other three possible sources are discussed. In particular, the generation of inertio-gravity waves by geostrophic adjustment near to a permanent jet situated above the mountains, may constitute another important mechanism in this region. These waves may possess longer horizontal and perhaps shorter vertical wavelengths than those typically expected in MWs and could be more easily detected from limb-sounding profiles. The "jet" mechanism will be discussed in a second paper. Copyright 2005 by the American Geophysical Union.Fil:de la Torre, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Alexander, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00948276_v32_n17_p1_delaTorreGeophys. Res. Lett. 2005;32(17):1-4reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2024-05-10T10:42:39Zpaperaa:paper_00948276_v32_n17_p1_delaTorreInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962024-05-10 10:42:40.397Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
title Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
spellingShingle Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
de la Torre, A.
Atmospheric temperature
Climatology
Global positioning system
Upper atmosphere
Weather satellites
Mountain waves
Radio occultation
Gravity waves
atmospheric wave
GPS
gravity wave
temperature profile
Andes
South America
Western Hemisphere
World
title_short Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
title_full Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
title_fullStr Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
title_full_unstemmed Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
title_sort Gravity waves above Andes detected from GPS radio occultation temperature profiles: Mountain forcing?
dc.creator.none.fl_str_mv de la Torre, A.
Alexander, P.
author de la Torre, A.
author_facet de la Torre, A.
Alexander, P.
author_role author
author2 Alexander, P.
author2_role author
dc.subject.none.fl_str_mv Atmospheric temperature
Climatology
Global positioning system
Upper atmosphere
Weather satellites
Mountain waves
Radio occultation
Gravity waves
atmospheric wave
GPS
gravity wave
temperature profile
Andes
South America
Western Hemisphere
World
topic Atmospheric temperature
Climatology
Global positioning system
Upper atmosphere
Weather satellites
Mountain waves
Radio occultation
Gravity waves
atmospheric wave
GPS
gravity wave
temperature profile
Andes
South America
Western Hemisphere
World
description A significant wave activity in the upper troposphere and lower stratosphere at midlatitudes (30-40S) above the Andes Range was recently detected from Global Positioning System Radio Occultation (GPS RO) temperature profiles, retrieved from SAC-C (Satélite de Aplicaciones Cientficas-C and CHAMP (CHAllenging Minisatellite Payload) satellites. Previously, large amplitude, long vertical wavelength structures have been reported in this region, as detected from other limb-sounding devices and have been identified as mountain waves (MWs). The capability of GPS RO observations to detect typical MWs with horizontal wavelengths shorter than 150 km, as well as the proper association of the observed wave activity to mountain forcing is put in doubt. Other three possible sources are discussed. In particular, the generation of inertio-gravity waves by geostrophic adjustment near to a permanent jet situated above the mountains, may constitute another important mechanism in this region. These waves may possess longer horizontal and perhaps shorter vertical wavelengths than those typically expected in MWs and could be more easily detected from limb-sounding profiles. The "jet" mechanism will be discussed in a second paper. Copyright 2005 by the American Geophysical Union.
publishDate 2005
dc.date.none.fl_str_mv 2005
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00948276_v32_n17_p1_delaTorre
url http://hdl.handle.net/20.500.12110/paper_00948276_v32_n17_p1_delaTorre
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Geophys. Res. Lett. 2005;32(17):1-4
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 15.811543

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