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Abstract:

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.

Registro:

Documento: Artículo
Título:Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements
Autor:Luna, D.; Alexander, P.; De La Torre, A.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Facultad de Ingeniería, Universidad Austral, Buenos Aires, Argentina
Palabras clave: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
Año:2013
Volumen:52
Número:5
Página de inicio:879
Página de fin:882
DOI: http://dx.doi.org/10.1016/j.asr.2013.05.015
Título revista:Advances in Space Research
Título revista abreviado:Adv. Space Res.
ISSN:02731177
CODEN:ASRSD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v52_n5_p879_Luna

Referencias:

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Citas:

---------- APA ----------
Luna, D., Alexander, P. & De La Torre, A. (2013) . Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements. Advances in Space Research, 52(5), 879-882.
http://dx.doi.org/10.1016/j.asr.2013.05.015
---------- CHICAGO ----------
Luna, D., Alexander, P., De La Torre, A. "Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements" . Advances in Space Research 52, no. 5 (2013) : 879-882.
http://dx.doi.org/10.1016/j.asr.2013.05.015
---------- MLA ----------
Luna, D., Alexander, P., De La Torre, A. "Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements" . Advances in Space Research, vol. 52, no. 5, 2013, pp. 879-882.
http://dx.doi.org/10.1016/j.asr.2013.05.015
---------- VANCOUVER ----------
Luna, D., Alexander, P., De La Torre, A. Evaluation of uncertainty in gravity wave potential energy calculations through GPS radio occultation measurements. Adv. Space Res. 2013;52(5):879-882.
http://dx.doi.org/10.1016/j.asr.2013.05.015