2022
DOI: 10.1029/2021rs007259
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Statistical Analysis of Refractive and Diffractive Scintillation at High Latitudes

Abstract: A comprehensive statistical analysis was performed on Global Positioning System scintillation data acquired at high latitudes from 2014 to 2017 after separating phase scintillation events originating from refraction and/or diffraction. Events exceeding a prescribed threshold were identified and analyzed statistically as a function of time, latitude, and propagation angle. The statistical analysis indicates that at high latitudes phase scintillation, which occurs more frequently than amplitude scintillation, is… Show more

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Cited by 11 publications
(15 citation statements)
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“…While at strong precipitation gradients, the σ ϕ index also includes diffractive variations, it seems otherwise to mainly include refractive signal variations. Conroy et al (2022) suggests that high latitude phase variations are mainly of refractive nature. As the IFLC and S4 show little to no variation during long-lasting precipitation events, they are observed as refractive and deterministic.…”
Section: Discussionmentioning
confidence: 99%
“…While at strong precipitation gradients, the σ ϕ index also includes diffractive variations, it seems otherwise to mainly include refractive signal variations. Conroy et al (2022) suggests that high latitude phase variations are mainly of refractive nature. As the IFLC and S4 show little to no variation during long-lasting precipitation events, they are observed as refractive and deterministic.…”
Section: Discussionmentioning
confidence: 99%
“…The distortions in the phase fronts are dependent on the size of the plasma irregularities which can be both diffractive and refractive with the latter associated with smaller irregularities (Boyde et al 2022). Conroy et al (2022) delves further on distinguishing refractive and diffractive phase scintillation.…”
Section: Theorymentioning
confidence: 99%
“…In the first case of κ ⊥ < κ f , the inhomogeneities are large enough to bend the propagating signal ray. Such refraction scintillation primarily contributes to the random excursion of the phase (Conroy et al, 2022). The amplitude scintillation is negligibly small as the propagation factor sin 2 (sκ 2 ⊥ /2k) found in the integral ( 16) tends to zero.…”
Section: Anisotropic Scintillation Indicesmentioning
confidence: 99%