A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles

The Global Positioning System (GPS) Radio Occultation (RO) technique has global coverage and is capable of generating high vertical resolution temperature profiles of the upper troposphere and lower stratosphere with sub-Kelvin accuracy and long-term stability, regardless of weather conditions. In t...

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Detalles Bibliográficos
Autores principales: Alexander, Pedro M., De La Torre, Alejandro Eduardo, Llamedo Soria, Pablo Martín
Publicado: 2010
Materias:
Gravity waves
Numerical simulation
Radio occultation
Stratosphere
Close-in
Constellation observing system for meteorology
Eastern side
Global coverage
High density
High vertical resolution
Inhomogeneous structure
Ionosphere and climates
Long term stability
Lower stratosphere
Mesoscale model
Miss-distance
Numerical studies
Radio occultations
Temperature profiles
Time and space
Upper troposphere
Wave activity
Weather conditions
Atmospherics
Computer simulation
Cosmology
Global positioning system
Gravitational effects
Hydrodynamics
Ionosphere
Meteorology
Radio
Sulfur compounds
Temperature control
Waves
Mathematical models
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v45_n10_p1231_Alexander
http://hdl.handle.net/20.500.12110/paper_02731177_v45_n10_p1231_Alexander
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_02731177_v45_n10_p1231_Alexander
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spelling paper:paper_02731177_v45_n10_p1231_Alexander2023-06-08T15:25:38Z A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles Alexander, Pedro M. De La Torre, Alejandro Eduardo Llamedo Soria, Pablo Martín Gravity waves Numerical simulation Radio occultation Stratosphere Close-in Constellation observing system for meteorology Eastern side Global coverage High density High vertical resolution Inhomogeneous structure Ionosphere and climates Long term stability Lower stratosphere Mesoscale model Miss-distance Numerical simulation Numerical studies Radio occultation Radio occultations Temperature profiles Time and space Upper troposphere Wave activity Weather conditions Atmospherics Computer simulation Cosmology Global positioning system Gravitational effects Gravity waves Hydrodynamics Ionosphere Meteorology Radio Sulfur compounds Temperature control Waves Mathematical models The Global Positioning System (GPS) Radio Occultation (RO) technique has global coverage and is capable of generating high vertical resolution temperature profiles of the upper troposphere and lower stratosphere with sub-Kelvin accuracy and long-term stability, regardless of weather conditions. In this work, we take advantage of the anomalously high density of occultation events at the eastern side of the highest Andes Mountains during the initial mission months of COSMIC (Constellation Observing System for Meteorology, Ionosphere and Climate). This region is well-known for its high wave activity. We choose to study two pairs of GPS RO, both containing two occultations that occurred close in time and space. One pair shows significant differences between both temperature profiles. Numerical simulations with a mesoscale model were performed, in order to understand this discrepancy. It is attributed to the presence of a horizontal inhomogeneous structure caused by gravity waves. © 2010 COSPAR. 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. Fil:Llamedo, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v45_n10_p1231_Alexander http://hdl.handle.net/20.500.12110/paper_02731177_v45_n10_p1231_Alexander
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 waves
Numerical simulation
Radio occultation
Stratosphere
Close-in
Constellation observing system for meteorology
Eastern side
Global coverage
High density
High vertical resolution
Inhomogeneous structure
Ionosphere and climates
Long term stability
Lower stratosphere
Mesoscale model
Miss-distance
Numerical simulation
Numerical studies
Radio occultation
Radio occultations
Temperature profiles
Time and space
Upper troposphere
Wave activity
Weather conditions
Atmospherics
Computer simulation
Cosmology
Global positioning system
Gravitational effects
Gravity waves
Hydrodynamics
Ionosphere
Meteorology
Radio
Sulfur compounds
Temperature control
Waves
Mathematical models
spellingShingle Gravity waves
Numerical simulation
Radio occultation
Stratosphere
Close-in
Constellation observing system for meteorology
Eastern side
Global coverage
High density
High vertical resolution
Inhomogeneous structure
Ionosphere and climates
Long term stability
Lower stratosphere
Mesoscale model
Miss-distance
Numerical simulation
Numerical studies
Radio occultation
Radio occultations
Temperature profiles
Time and space
Upper troposphere
Wave activity
Weather conditions
Atmospherics
Computer simulation
Cosmology
Global positioning system
Gravitational effects
Gravity waves
Hydrodynamics
Ionosphere
Meteorology
Radio
Sulfur compounds
Temperature control
Waves
Mathematical models
Alexander, Pedro M.
De La Torre, Alejandro Eduardo
Llamedo Soria, Pablo Martín
A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles
topic_facet Gravity waves
Numerical simulation
Radio occultation
Stratosphere
Close-in
Constellation observing system for meteorology
Eastern side
Global coverage
High density
High vertical resolution
Inhomogeneous structure
Ionosphere and climates
Long term stability
Lower stratosphere
Mesoscale model
Miss-distance
Numerical simulation
Numerical studies
Radio occultation
Radio occultations
Temperature profiles
Time and space
Upper troposphere
Wave activity
Weather conditions
Atmospherics
Computer simulation
Cosmology
Global positioning system
Gravitational effects
Gravity waves
Hydrodynamics
Ionosphere
Meteorology
Radio
Sulfur compounds
Temperature control
Waves
Mathematical models
description The Global Positioning System (GPS) Radio Occultation (RO) technique has global coverage and is capable of generating high vertical resolution temperature profiles of the upper troposphere and lower stratosphere with sub-Kelvin accuracy and long-term stability, regardless of weather conditions. In this work, we take advantage of the anomalously high density of occultation events at the eastern side of the highest Andes Mountains during the initial mission months of COSMIC (Constellation Observing System for Meteorology, Ionosphere and Climate). This region is well-known for its high wave activity. We choose to study two pairs of GPS RO, both containing two occultations that occurred close in time and space. One pair shows significant differences between both temperature profiles. Numerical simulations with a mesoscale model were performed, in order to understand this discrepancy. It is attributed to the presence of a horizontal inhomogeneous structure caused by gravity waves. © 2010 COSPAR.
author Alexander, Pedro M.
De La Torre, Alejandro Eduardo
Llamedo Soria, Pablo Martín
author_facet Alexander, Pedro M.
De La Torre, Alejandro Eduardo
Llamedo Soria, Pablo Martín
author_sort Alexander, Pedro M.
title A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles
title_short A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles
title_full A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles
title_fullStr A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles
title_full_unstemmed A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles
title_sort comparative and numerical study of effects of gravity waves in small miss-distance and miss-time gps radio occultation temperature profiles
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v45_n10_p1231_Alexander
http://hdl.handle.net/20.500.12110/paper_02731177_v45_n10_p1231_Alexander
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