Analysis of internal gravity waves with GPS RO density profiles
GPS radio occultation (RO) data have proved to be a great tool for atmospheric monitoring and studies. In the past decade, they were frequently used for analyses of the internal gravity waves in the upper troposphere and lower stratosphere region. Atmospheric density is the first quantity of state g...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-12-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/7/4123/2014/amt-7-4123-2014.pdf |
| _version_ | 1819207510894051328 |
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| author | P. Šácha U. Foelsche P. Pišoft |
| author_facet | P. Šácha U. Foelsche P. Pišoft |
| author_sort | P. Šácha |
| collection | DOAJ |
| description | GPS radio occultation (RO) data have proved to be a great tool for
atmospheric monitoring and studies. In the past decade, they were frequently
used for analyses of the internal gravity waves in the upper troposphere and
lower stratosphere region. Atmospheric density is the first quantity of state
gained in the retrieval process and is not burdened by additional
assumptions. However, there are no studies elaborating in detail the
utilization of GPS RO density profiles for gravity wave analyses. In this
paper, we introduce a method for density background separation and a
methodology for internal gravity wave analysis using the density profiles.
Various background choices are discussed and the correspondence between
analytical forms of the density and temperature background profiles is
examined. In the stratosphere, a comparison between the power spectrum of
normalized density and normalized dry temperature fluctuations confirms the
suitability of the density profiles' utilization. In the height range of
8–40 km, results of the continuous wavelet transform are presented and
discussed. Finally, the limits of our approach are discussed and the
advantages of the density usage are listed. |
| first_indexed | 2024-12-23T05:24:39Z |
| format | Article |
| id | doaj.art-26481de876fa4d27946b6e3d312306af |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-23T05:24:39Z |
| publishDate | 2014-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-26481de876fa4d27946b6e3d312306af2022-12-21T17:58:37ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482014-12-017124123413210.5194/amt-7-4123-2014Analysis of internal gravity waves with GPS RO density profilesP. Šácha0U. Foelsche1P. Pišoft2Charles University in Prague, Prague, Czech RepublicInstitute for Geophysics, Astrophysics, and Meteorology/Inst. of Physics (IGAM/IP) and Wegener Center for Climate and Global Change (WEGC), University of Graz, Graz, AustriaCharles University in Prague, Prague, Czech RepublicGPS radio occultation (RO) data have proved to be a great tool for atmospheric monitoring and studies. In the past decade, they were frequently used for analyses of the internal gravity waves in the upper troposphere and lower stratosphere region. Atmospheric density is the first quantity of state gained in the retrieval process and is not burdened by additional assumptions. However, there are no studies elaborating in detail the utilization of GPS RO density profiles for gravity wave analyses. In this paper, we introduce a method for density background separation and a methodology for internal gravity wave analysis using the density profiles. Various background choices are discussed and the correspondence between analytical forms of the density and temperature background profiles is examined. In the stratosphere, a comparison between the power spectrum of normalized density and normalized dry temperature fluctuations confirms the suitability of the density profiles' utilization. In the height range of 8–40 km, results of the continuous wavelet transform are presented and discussed. Finally, the limits of our approach are discussed and the advantages of the density usage are listed.http://www.atmos-meas-tech.net/7/4123/2014/amt-7-4123-2014.pdf |
| spellingShingle | P. Šácha U. Foelsche P. Pišoft Analysis of internal gravity waves with GPS RO density profiles Atmospheric Measurement Techniques |
| title | Analysis of internal gravity waves with GPS RO density profiles |
| title_full | Analysis of internal gravity waves with GPS RO density profiles |
| title_fullStr | Analysis of internal gravity waves with GPS RO density profiles |
| title_full_unstemmed | Analysis of internal gravity waves with GPS RO density profiles |
| title_short | Analysis of internal gravity waves with GPS RO density profiles |
| title_sort | analysis of internal gravity waves with gps ro density profiles |
| url | http://www.atmos-meas-tech.net/7/4123/2014/amt-7-4123-2014.pdf |
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