Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements

The application of the Global Positioning System (GPS) radio occultation (RO) method to the atmosphere enables the determination of height profiles of temperature, among other variables. From these measurements, gravity wave activity is usually quantified by calculating the potential energy through...

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Detalles Bibliográficos
Autores principales: Luna, D., Alexander, P., De La Torre, A.
Formato: JOUR
Materias:
Gravity wave potential energy
Radio occultation
Uncertainty
Background temperature
GPS radio occultations
Measured temperatures
Radio occultations
Separation methods
Vertical integration
Wave potentials
Atmospheric temperature
Global positioning system
Gravity waves
Monte Carlo methods
Potential energy
Radio
Uncertainty analysis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02731177_v52_n5_p879_Luna
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02731177_v52_n5_p879_Luna
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spelling todo:paper_02731177_v52_n5_p879_Luna2023-10-03T15:15:45Z Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements Luna, D. Alexander, P. De La Torre, A. Gravity wave potential energy Radio occultation Uncertainty Background temperature GPS radio occultations Measured temperatures Radio occultations Separation methods Uncertainty Vertical integration Wave potentials Atmospheric temperature Global positioning system Gravity waves Monte Carlo methods Potential energy Radio Uncertainty analysis The application of the Global Positioning System (GPS) radio occultation (RO) method to the atmosphere enables the determination of height profiles of temperature, among other variables. From these measurements, gravity wave activity is usually quantified by calculating the potential energy through the integration of the ratio of perturbation and background temperatures between two given altitudes in each profile. The uncertainty in the estimation of wave activity depends on the systematic biases and random errors of the measured temperature, but also on additional factors like the selected vertical integration layer and the separation method between background and perturbation temperatures. In this study, the contributions of different parameters and variables to the uncertainty in the calculation of gravity wave potential energy in the lower stratosphere are investigated and quantified. In particular, a Monte Carlo method is used to evaluate the uncertainty that results from different GPS RO temperature error distributions. In addition, our analysis shows that RO data above 30 km height becomes dubious for gravity waves potential energy calculations. © 2013 COSPAR. Published by Elsevier Ltd. All rights reserved. Fil:Alexander, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:De La Torre, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02731177_v52_n5_p879_Luna
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Gravity wave potential energy
Radio occultation
Uncertainty
Background temperature
GPS radio occultations
Measured temperatures
Radio occultations
Separation methods
Uncertainty
Vertical integration
Wave potentials
Atmospheric temperature
Global positioning system
Gravity waves
Monte Carlo methods
Potential energy
Radio
Uncertainty analysis
spellingShingle Gravity wave potential energy
Radio occultation
Uncertainty
Background temperature
GPS radio occultations
Measured temperatures
Radio occultations
Separation methods
Uncertainty
Vertical integration
Wave potentials
Atmospheric temperature
Global positioning system
Gravity waves
Monte Carlo methods
Potential energy
Radio
Uncertainty analysis
Luna, D.
Alexander, P.
De La Torre, A.
Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
topic_facet Gravity wave potential energy
Radio occultation
Uncertainty
Background temperature
GPS radio occultations
Measured temperatures
Radio occultations
Separation methods
Uncertainty
Vertical integration
Wave potentials
Atmospheric temperature
Global positioning system
Gravity waves
Monte Carlo methods
Potential energy
Radio
Uncertainty analysis
description The application of the Global Positioning System (GPS) radio occultation (RO) method to the atmosphere enables the determination of height profiles of temperature, among other variables. From these measurements, gravity wave activity is usually quantified by calculating the potential energy through the integration of the ratio of perturbation and background temperatures between two given altitudes in each profile. The uncertainty in the estimation of wave activity depends on the systematic biases and random errors of the measured temperature, but also on additional factors like the selected vertical integration layer and the separation method between background and perturbation temperatures. In this study, the contributions of different parameters and variables to the uncertainty in the calculation of gravity wave potential energy in the lower stratosphere are investigated and quantified. In particular, a Monte Carlo method is used to evaluate the uncertainty that results from different GPS RO temperature error distributions. In addition, our analysis shows that RO data above 30 km height becomes dubious for gravity waves potential energy calculations. © 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.
format JOUR
author Luna, D.
Alexander, P.
De La Torre, A.
author_facet Luna, D.
Alexander, P.
De La Torre, A.
author_sort Luna, D.
title Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
title_short Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
title_full Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
title_fullStr Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
title_full_unstemmed Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
title_sort evaluation of uncertainty in gravity wave potential energy calculations through gps radio occultation measurements
url http://hdl.handle.net/20.500.12110/paper_02731177_v52_n5_p879_Luna
work_keys_str_mv AT lunad evaluationofuncertaintyingravitywavepotentialenergycalculationsthroughgpsradiooccultationmeasurements
AT alexanderp evaluationofuncertaintyingravitywavepotentialenergycalculationsthroughgpsradiooccultationmeasurements
AT delatorrea evaluationofuncertaintyingravitywavepotentialenergycalculationsthroughgpsradiooccultationmeasurements
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