A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study

Atmospheric gravity waves (GW) serve as an essential mechanism in the transport of energy and momentum flux from the low to the upper atmosphere. In the last decades satellite observations have become an important part in the analysis of GW due to their global and frequent coverage. Present procedur...

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Detalles Bibliográficos
Publicado: 2018
Materias:
gravity waves
momentum flux
real wavelengths
flux measurement
GPS
gravity wave
instrumentation
numerical method
radio
temperature effect
temperature profile
upper atmosphere
wave direction
wave propagation
wavelength
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23335084_v5_n6_p222_Alexander
http://hdl.handle.net/20.500.12110/paper_23335084_v5_n6_p222_Alexander
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_23335084_v5_n6_p222_Alexander
record_format dspace
spelling paper:paper_23335084_v5_n6_p222_Alexander2023-06-08T16:35:40Z A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study gravity waves momentum flux real wavelengths flux measurement GPS gravity wave instrumentation numerical method radio temperature effect temperature profile upper atmosphere wave direction wave propagation wavelength Atmospheric gravity waves (GW) serve as an essential mechanism in the transport of energy and momentum flux from the low to the upper atmosphere. In the last decades satellite observations have become an important part in the analysis of GW due to their global and frequent coverage. Present procedures often provide GW absolute momentum flux (MF), ambiguous 3-D propagation direction, and apparent vertical wavelengths. We here introduce a method with close sounding quartets, which allows the calculation for GW of the net MF, the definite propagation direction, and “real” wavelengths. Among the satellite observational techniques, Global Positioning System (GPS) radio occultation (RO) retrievals provide temperature profiles that after adequate processing may yield GW properties like wavelengths, MF, and energy. Our procedure is illustrated by an example under requirements that tend to ensure that four GPS RO soundings are observing the same GW. The future increase of satellite measuring devices due to new missions (including GPS RO) will lead to a higher spatial and temporal density of profiles that may eventually allow the attainment of GW climatologies of net MF, propagation direction, and “real” vertical wavelengths. © 2018. The Authors. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23335084_v5_n6_p222_Alexander http://hdl.handle.net/20.500.12110/paper_23335084_v5_n6_p222_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
momentum flux
real wavelengths
flux measurement
GPS
gravity wave
instrumentation
numerical method
radio
temperature effect
temperature profile
upper atmosphere
wave direction
wave propagation
wavelength
spellingShingle gravity waves
momentum flux
real wavelengths
flux measurement
GPS
gravity wave
instrumentation
numerical method
radio
temperature effect
temperature profile
upper atmosphere
wave direction
wave propagation
wavelength
A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
topic_facet gravity waves
momentum flux
real wavelengths
flux measurement
GPS
gravity wave
instrumentation
numerical method
radio
temperature effect
temperature profile
upper atmosphere
wave direction
wave propagation
wavelength
description Atmospheric gravity waves (GW) serve as an essential mechanism in the transport of energy and momentum flux from the low to the upper atmosphere. In the last decades satellite observations have become an important part in the analysis of GW due to their global and frequent coverage. Present procedures often provide GW absolute momentum flux (MF), ambiguous 3-D propagation direction, and apparent vertical wavelengths. We here introduce a method with close sounding quartets, which allows the calculation for GW of the net MF, the definite propagation direction, and “real” wavelengths. Among the satellite observational techniques, Global Positioning System (GPS) radio occultation (RO) retrievals provide temperature profiles that after adequate processing may yield GW properties like wavelengths, MF, and energy. Our procedure is illustrated by an example under requirements that tend to ensure that four GPS RO soundings are observing the same GW. The future increase of satellite measuring devices due to new missions (including GPS RO) will lead to a higher spatial and temporal density of profiles that may eventually allow the attainment of GW climatologies of net MF, propagation direction, and “real” vertical wavelengths. © 2018. The Authors.
title A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
title_short A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
title_full A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
title_fullStr A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
title_full_unstemmed A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
title_sort method to determine gravity wave net momentum flux, propagation direction, and “real” wavelengths: a gps radio occultations soundings case study
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23335084_v5_n6_p222_Alexander
http://hdl.handle.net/20.500.12110/paper_23335084_v5_n6_p222_Alexander
_version_ 1768542910296358912

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