Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles

In a previous paper by Schmidt et al. (2008), from CHAllenging Minisatellite Payload (CHAMP) Global Positioning System (GPS) radio occultation data, a comparison was made between a Gaussian filter applied to the "complete" temperature profile and to its "separate" tropospheric an...

Descripción completa

Detalles Bibliográficos
Autores principales:	De La Torre, Alejandro Eduardo, Llamedo Soria, Pablo Martín, Alexander, Pedro M.
Publicado:	2010
Materias:	GPS radio occultation Gravity waves Wave energy Climatology Molecular physics Potential energy Radio Temperature control Uncertainty analysis Wave energy conversion Challenging minisatellite payloads GPS radio occultations Radio occultations Statistical simulation Temperature profiles Vertical temperature profile Wave climatologies Global positioning system
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v46_n2_p174_DeLaTorre http://hdl.handle.net/20.500.12110/paper_02731177_v46_n2_p174_DeLaTorre
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_02731177_v46_n2_p174_DeLaTorre
record_format	dspace
spelling	paper:paper_02731177_v46_n2_p174_DeLaTorre2023-06-08T15:25:38Z Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles De La Torre, Alejandro Eduardo Llamedo Soria, Pablo Martín Alexander, Pedro M. GPS radio occultation Gravity waves Wave energy Climatology Gravity waves Molecular physics Potential energy Radio Temperature control Uncertainty analysis Wave energy conversion Challenging minisatellite payloads GPS radio occultations Radio occultations Statistical simulation Temperature profiles Vertical temperature profile Wave climatologies Wave energy Global positioning system In a previous paper by Schmidt et al. (2008), from CHAllenging Minisatellite Payload (CHAMP) Global Positioning System (GPS) radio occultation data, a comparison was made between a Gaussian filter applied to the "complete" temperature profile and to its "separate" tropospheric and stratospheric height intervals, for gravity wave analyses. It was found that the separate filtering method considerably reduces a wave activity artificial enhancement near the tropopause, presumably due to the isolation process of the wave component. We now propose a simple approach to estimate the uncertainty in the calculation of the mean specific wave potential energy content, due exclusively to the filtering process of vertical temperature profiles, independently of the experimental origin of the data. The approach is developed through a statistical simulation, built up from the superposition of synthetic wave perturbations. These are adjusted by a recent gravity wave (GW) climatology and temperature profiles from reanalyses. A systematic overestimation of the mean specific wave potential energy content is detected and its variability with latitude, altitude, season and averaging height interval is highlighted. © 2010 COSPAR. Published by Elsevier Ltd. All rights reserved. Fil:De La Torre, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Llamedo, P. 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. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v46_n2_p174_DeLaTorre http://hdl.handle.net/20.500.12110/paper_02731177_v46_n2_p174_DeLaTorre
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	GPS radio occultation Gravity waves Wave energy Climatology Gravity waves Molecular physics Potential energy Radio Temperature control Uncertainty analysis Wave energy conversion Challenging minisatellite payloads GPS radio occultations Radio occultations Statistical simulation Temperature profiles Vertical temperature profile Wave climatologies Wave energy Global positioning system
spellingShingle	GPS radio occultation Gravity waves Wave energy Climatology Gravity waves Molecular physics Potential energy Radio Temperature control Uncertainty analysis Wave energy conversion Challenging minisatellite payloads GPS radio occultations Radio occultations Statistical simulation Temperature profiles Vertical temperature profile Wave climatologies Wave energy Global positioning system De La Torre, Alejandro Eduardo Llamedo Soria, Pablo Martín Alexander, Pedro M. Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles
topic_facet	GPS radio occultation Gravity waves Wave energy Climatology Gravity waves Molecular physics Potential energy Radio Temperature control Uncertainty analysis Wave energy conversion Challenging minisatellite payloads GPS radio occultations Radio occultations Statistical simulation Temperature profiles Vertical temperature profile Wave climatologies Wave energy Global positioning system
description	In a previous paper by Schmidt et al. (2008), from CHAllenging Minisatellite Payload (CHAMP) Global Positioning System (GPS) radio occultation data, a comparison was made between a Gaussian filter applied to the "complete" temperature profile and to its "separate" tropospheric and stratospheric height intervals, for gravity wave analyses. It was found that the separate filtering method considerably reduces a wave activity artificial enhancement near the tropopause, presumably due to the isolation process of the wave component. We now propose a simple approach to estimate the uncertainty in the calculation of the mean specific wave potential energy content, due exclusively to the filtering process of vertical temperature profiles, independently of the experimental origin of the data. The approach is developed through a statistical simulation, built up from the superposition of synthetic wave perturbations. These are adjusted by a recent gravity wave (GW) climatology and temperature profiles from reanalyses. A systematic overestimation of the mean specific wave potential energy content is detected and its variability with latitude, altitude, season and averaging height interval is highlighted. © 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.
author	De La Torre, Alejandro Eduardo Llamedo Soria, Pablo Martín Alexander, Pedro M.
author_facet	De La Torre, Alejandro Eduardo Llamedo Soria, Pablo Martín Alexander, Pedro M.
author_sort	De La Torre, Alejandro Eduardo
title	Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles
title_short	Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles
title_full	Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles
title_fullStr	Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles
title_full_unstemmed	Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles
title_sort	estimated errors in a global gravity wave climatology from gps radio occultation temperature profiles
publishDate	2010
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v46_n2_p174_DeLaTorre http://hdl.handle.net/20.500.12110/paper_02731177_v46_n2_p174_DeLaTorre
work_keys_str_mv	AT delatorrealejandroeduardo estimatederrorsinaglobalgravitywaveclimatologyfromgpsradiooccultationtemperatureprofiles AT llamedosoriapablomartin estimatederrorsinaglobalgravitywaveclimatologyfromgpsradiooccultationtemperatureprofiles AT alexanderpedrom estimatederrorsinaglobalgravitywaveclimatologyfromgpsradiooccultationtemperatureprofiles
_version_	1768543179666096128

Estimated errors in a global gravity wave climatology from GPS radio occultation temperature profiles

Ejemplares similares