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Kan, V.; Matyugov, S. S.; Yakovlev, O. I.

doi:10.1023/a:1021720729322

Cited by 6 publications

(11 citation statements)

References 10 publications

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“…Namely, for η = 1, the ratio in Eq. (17), which depends on K ⊥ , and the factor [exp(−Ψ) − 1] in Eq. (9) are anisotropic in this plane, whereas the squared sine in Eq.…”

Section: Equations For the Scintillation Spectra After A Statisticallmentioning

confidence: 99%

“…(9) are anisotropic in this plane, whereas the squared sine in Eq. (17) and the second exponential in Eq. (9) are isotropic.…”

Section: Equations For the Scintillation Spectra After A Statisticallmentioning

confidence: 99%

“…It should be noted that theoretical studies of strong scintillations have attracted considerable attention until recently [14]. This is related to the rapid growth of applications of the satellite-based method for sounding the atmosphere by optical and radio waves [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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Strong scintillation spectra behind a phase screen containing large-scale anisotropic irregularities

Gurvich

Воробьев

Marakasov

et al. 2007

Radiophys Quantum El

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Using the approximation of an anisotropic statistically-homogeneous phase screen, we consider spectra of strong scintillations. Numerical calculations are made for the model of large-scale anisotropic inhomogeneities typical of the Earth's stratosphere. The spectrum transformation is studied for the transition from weak scintillations to the asymptotic regime of strong scintillations. We show that with increasing level of the scintillations, their spectra rapidly broaden to the region of large wave numbers which exceed both the inverse internal scale of the irregularities and the inverse radius of the Fresnel zone by orders of magnitude. Notable deviations of the two-dimensional spectra from the predictions based on perturbation theory are shown to occur for scintillation variance exceeding 0.1. The obtained two-dimensional spectra of scintillations give a complete picture of the behavior of one-dimensional spectra which can be retrieved from satellite observations made for different angles between the orbit plane and the direction to the source. Vertical and horizontal one-dimensional spectra are studied in detail. Approximate algebraic formulas are derived and their validity is proved by applying them to the calculation of spectra of strong scintillations for a wide (several decades) range of the wave number values.

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“…Namely, for η = 1, the ratio in Eq. (17), which depends on K ⊥ , and the factor [exp(−Ψ) − 1] in Eq. (9) are anisotropic in this plane, whereas the squared sine in Eq.…”

Section: Equations For the Scintillation Spectra After A Statisticallmentioning

confidence: 99%

“…(9) are anisotropic in this plane, whereas the squared sine in Eq. (17) and the second exponential in Eq. (9) are isotropic.…”

Section: Equations For the Scintillation Spectra After A Statisticallmentioning

confidence: 99%

See 1 more Smart Citation

Strong scintillation spectra behind a phase screen containing large-scale anisotropic irregularities

Gurvich

Воробьев

Marakasov

et al. 2007

Radiophys Quantum El

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“…It was shown that the data of GPS receivers are a tool for tropospheric studies having a large time resolution [5], whereas the spatial resolution depends on the receiver distribution density. In Russia, global satellite navigation systems are used for tomography of the ionosphere or stratosphere [6][7][8]. However, there are few papers on using satellite navigation systems for studies of the troposphere, especially the boundary layer.…”

Section: Introductionmentioning

confidence: 99%

Sensing of the structure of the radio wave refractivity in the troposphere by a network of satellite navigation system receivers in the city of Kazan

Khutorova

Teptin

Vassilyev

et al. 2011

Radiophys Quantum El

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We present the results of an experimental study of the structure of the radio-wave refractivity and its dynamics by a network of seven ground-based GPS and GLONASS receivers in Kazan, Russia. It is shown that the remote sensing results agree well with the data of weather stations, radio sounding, and reanalysis. The standard deviation of the refractivity value, which are obtained using the sensing results from the radio sounding data amounts to 2% of the average value at altitudes of up to 500 m. It is found that the refractivity structure has overnight variations, as well as and mesoscale spatial and temporal variability.

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“…The high accuracy of measurements of signal amplitudes and phases in radio-occultation experiments also made it possible to obtain information on fluctuations of radio waves and small-scale atmospheric [2,6,7] and ionospheric [8,9] irregularities. Earlier, as a result of multiyear studies, ionospheric fluctuations of radio waves on the satellite-ground-based reception site paths were studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Radiowave fluctuations in the polar ionosphere on the satellite-to-satellite paths under high solar activity

Yakovlev

Wickert

Matyugov

et al. 2006

Radiophys Quantum Electron

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We analyze ionospheric fluctuations of decimeter radio waves on occultation polar paths between the navigational GPS satellites and the satellite CHAMP. Time dependences of the variance of the signal amplitude and amplitude fluctuation spectra under high solar activity in OctoberNovember 2003 are presented. The behavior of the signal amplitude fluctuations during occultation ionospheric sounding in the polar regions in different time of the day and in the equatorial regions in the daytime are considered. Radio-wave fluctuations are related to the solar-activity manifestations. It is shown that during strong solar-flare activity, intense small-scale plasma irregularities are excited in the polar ionosphere.

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Cited by 6 publications

References 10 publications

Strong scintillation spectra behind a phase screen containing large-scale anisotropic irregularities

Strong scintillation spectra behind a phase screen containing large-scale anisotropic irregularities

Sensing of the structure of the radio wave refractivity in the troposphere by a network of satellite navigation system receivers in the city of Kazan

Radiowave fluctuations in the polar ionosphere on the satellite-to-satellite paths under high solar activity

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