Association of Inclined Sporadic E-Layers and Small-Scale Atmospheric Waves in Earth’s Ionosphere

Губенко, В. Н.; Kirillovich, I. A.

doi:10.1134/s0010952520030028

Cited by 2 publications

(1 citation statement)

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“…Back to this study, the discrepancies between the EsOR/EsI and CWS (Figure 9) also imply that the wind shear cannot explain the vertical evolution of the Es layer fully. The formation and evolution of the Es layer can be affected by other factors including the electric field, background metallic ion distribution, and gravity waves (Cai et al., 2017; Chu et al., 2014; Didebulidze et al., 2020; Gubenko & Kirillovich, 2020; Resende et al., 2016).…”

Section: Discussionmentioning

confidence: 99%

Altitudinal and Latitudinal Variations in Ionospheric Sporadic‐E Layer Obtained From FORMOSAT‐3/COSMIC Radio Occultation

Qiu

Yan

et al. 2021

JGR Space Physics

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Sporadic E (Es) layers are known for their layered structures with enhanced electron density. Recently, some scientists have studied the relationship between the occurrence rate and intensity of the Es layer in the global distribution. However, the relationship between the Es layer parameters (Es layer occurrence rate, Es layer intensity, Es layer thickness) in the vertical direction seems to be ignored to date. This paper highlights the vertical profiles of the occurrence rate, intensity, and thickness of the Es layers by using scintillation index (S4) from FORMOSAT‐3/COSMIC satellites from July 2007 to March 2015. The results show that there are some persistent differences between the occurrence rate, intensity, and thickness of the Es layers in the vertical profiles, which is different from their general similarity in the latitude distribution. It is found that the Es layer occurrence rate has a maximum value at ∼102 km altitude, but the Es layer intensity and Es layer thickness reach their maximum at an altitude of ∼110 km. Besides, the intensity and thickness of the Es layer exhibit a high linear relationship, which suggests that the larger electron density of the Es layer, the thicker its thickness. The Horizontal Wind Model (HWM14) indicates that the latitudinal variations in Es layers parameters are highly coincident with the zonal wind shear. However, the altitudinal variations in Es layers parameters do not agree well with the zonal wind shear.

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