On the High-Wavenumber Form of the Eulerian Internal Wave Spectrum in the Atmosphere

Chunchuzov, I. P.

doi:10.1175/1520-0469(2002)059<1753:othwfo>2.0.co;2

Cited by 50 publications

(48 citation statements)

References 32 publications

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“…Despite different observation methods and different data analyses, all these data indicate a very large anisotropy of large-scale structures: from a hundred to several hundreds. These results are in agreement with the theoretical estimates of anisotropy for large-scale GWs: η ≈ (N BV /f C )M −1 (N BV is the Brunt-Väisälä frequency and f C is the Coriolis parameter), with M = 1, η = 100-200 (Fritts and Alexander, 2003) and also with M = 0.3-0.4, η = 250-500 (Chunchuzov, 2002).…”

Section: Discussion and Summarysupporting

confidence: 90%

“…Since several studies mentioned above indicate a variable anisotropy growing with the scale of irregularities (the results of this work also support this, see below) we will use for W the model with variable anisotropy, which depends on the vertical scale (Gurvich and Chunchuzov, 2008a, b). This model is a generalization of the 3-D spectrum of gravity waves with constant anisotropy for irregularities larger than the GW breaking scale (Chunchuzov, 2002). We present the model of W (κ) (Gurvich and Chunchuzov, 2008a, b) as follows:…”

Section: A Model Of the 3-d Spectrum Of Atmospheric Irregularitiesmentioning

confidence: 99%

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Variable anisotropy of small-scale stratospheric irregularities retrieved from stellar scintillation measurements by GOMOS/Envisat

2014

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Abstract. In this paper, we consider possibilities for studying the anisotropy of small-scale air density irregularities using satellite observations of bi-chromatic stellar scintillations during tangential occultations. Estimation of the anisotropy coefficient (the ratio of the characteristic horizontal to vertical scales) and other atmospheric parameters is based on the comparison of simulated/theoretical and experimental autospectra and coherency spectra of scintillation. Our analyses exploit a 3-D model of the spectrum of atmospheric inhomogeneities, which consists of anisotropic and isotropic components. For the anisotropic component, a spectral model with variable anisotropy is used. Using stellar scintillation measurements by GOMOS (Global Ozone Monitoring by Occultation of Stars) fast photometers, estimates of the anisotropy coefficient are obtained for atmospheric irregularities with vertical scales of 8-55 m at altitudes of 43-30 km. It is shown that the anisotropy increases from about 10 to 50 with increasing vertical scales.

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Section: Discussion and Summarysupporting

confidence: 90%

Section: A Model Of the 3-d Spectrum Of Atmospheric Irregularitiesmentioning

confidence: 99%

Variable anisotropy of small-scale stratospheric irregularities retrieved from stellar scintillation measurements by GOMOS/Envisat

2014

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“…It seems to be this value on which Fritts and Alexander (2003) based their objection (para. 122) that Hines (2001) and Chunchuzov (2002) obtained a tail intensity about 2 to 3 times smaller than typically observed. As will be seen now, and as will be discussed below, that objection does not hold true when the full evaluation of tail intensity is employed.…”

Section: The Lagrangian Input Spectrummentioning

confidence: 98%

Modeling of gravity-wave tail spectra in the middle atmosphere via numerical and Doppler-spread methods

Hines

Childress

Kinney

et al. 2004

Journal of Atmospheric and Solar-Terrestrial Physics

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“…A model for the spatial three-dimensional spectrum of temperature irregularities generated by internal GWs, which originate and propagate in a stably stratified atmosphere, was suggested in [24]. This is also a model with constant anisotropy, which gives the same power law for the corresponding one-dimensional vertical and horizontal wavenumber spectra.…”

Section: Atmospheric Sources Of Scintillationmentioning

confidence: 99%

Using stellar scintillation for studies of turbulence in the Earth’s atmosphere

Sofieva

Dalaudier

Vernin

2013

Phil. Trans. R. Soc. A.

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International audienceStellar scintillation observed through the Earth's atmosphere is the result of interaction of light waves and the turbulent atmosphere. This review is dedicated to using stellar scintillation measurements for studies of turbulence in the Earth's atmosphere. We present an overview of ground-based, air-borne and satellite stellar scintillation measurements, discuss the approaches to data analyses and give an overview of the main geophysical results. We also discuss the benefits of the scintillation method in studies of the structure of air density irregularities and its limitations

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On the High-Wavenumber Form of the Eulerian Internal Wave Spectrum in the Atmosphere

Cited by 50 publications

References 32 publications

Variable anisotropy of small-scale stratospheric irregularities retrieved from stellar scintillation measurements by GOMOS/Envisat

Variable anisotropy of small-scale stratospheric irregularities retrieved from stellar scintillation measurements by GOMOS/Envisat

Modeling of gravity-wave tail spectra in the middle atmosphere via numerical and Doppler-spread methods

Using stellar scintillation for studies of turbulence in the Earth’s atmosphere

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