A new technique for the analysis of neutral air density fluctuations measured in situ in the middle atmosphere

We consider the analysis of mesospheric neutral air density fluctuations caused by turbulent eddy motions as measured by rocket borne ionization gauges. After shortly reviewing the so far standard Fourier‐approach we introduce wavelets as a suitable tool to derive spectral information of the data bo...

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Bibliographic Details
Published inGeophysical research letters Vol. 30; no. 20; pp. 2052 - n/a
Main Authors Strelnikov, B., Rapp, M., Lübken, F.-J.
Format Journal Article
LanguageEnglish
Published American Geophysical Union 01.10.2003
Blackwell Publishing Ltd
Subjects
Atmospheric Composition and Structure
Instruments and techniques
Meteorology and Atmospheric Dynamics
Middle atmosphere—energy deposition
Turbulence
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Summary:We consider the analysis of mesospheric neutral air density fluctuations caused by turbulent eddy motions as measured by rocket borne ionization gauges. After shortly reviewing the so far standard Fourier‐approach we introduce wavelets as a suitable tool to derive spectral information of the data both as a function of spatial scale and altitude. Applying both techniques to a data set obtained during a recent sounding rocket campaign we show that both methods yield consistent results, however, the wavelet technique yields additional information on the actual vertical extent of the observed turbulent structures.
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ISSN:0094-8276
1944-8007
DOI:10.1029/2003GL018271