Observations of traveling ionospheric disturbances over Ukraine during geospace storm using single GNSS receiver

IF 1.9 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Journal of Atmospheric and Solar-Terrestrial Physics Pub Date : 2025-06-23 DOI:10.1016/j.jastp.2025.106555

Sergii Panasenko , Vadym Skipa , Kateryna Aksonova , Oleksandr Bogomaz , Igor Domnin

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引用次数: 0

Abstract

We proposed a simplified technique for detecting large-scale traveling ionospheric disturbances (TIDs) based on data from a single GNSS receiver. This method enables an approximate determination of the zonal or meridional propagation of TIDs when satellite trajectories are predominantly aligned along parallels or meridians. We identified large-scale TIDs during the passage of the sunrise solar terminator and enhanced auroral activity. These disturbances exhibited dominant periods of approximately 60 min, with amplitudes ranging from 0.2 to 0.25 TECU (1 TECU =

1 0^{16}

m^{- 2}

). TIDs induced by space weather variations mainly propagated along the meridians, whereas the propagation direction for TIDs generated by the sunrise solar terminator could not be determined. Comparison with incoherent scatter data revealed good agreement in the periods and observation intervals of the TIDs. Furthermore, incorporating GNSS data from the European dense GNSS receiver network validated the inferred directions of TID propagation.

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利用单一GNSS接收机观测地球空间风暴期间乌克兰上空电离层扰动

我们提出了一种基于单个GNSS接收机数据的大规模移动电离层扰动（TIDs）的简化检测技术。当卫星轨迹主要沿平行线或子午线排列时，这种方法可以大致确定TIDs的纬向或经向传播。我们发现大尺度的tid发生在日出、太阳终结期和增强的极光活动期间。这些扰动的主导周期约为60 min，振幅范围为0.2 ~ 0.25 TECU （1 TECU = 1016 m−2）。空间天气变化引起的TIDs主要沿子午线传播，而日出太阳终端机产生的TIDs的传播方向无法确定。与非相干散射数据的比较表明，TIDs的周期和观测间隔具有良好的一致性。此外，结合来自欧洲密集GNSS接收机网络的GNSS数据，验证了推断的TID传播方向。

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来源期刊

Journal of Atmospheric and Solar-Terrestrial Physics 地学-地球化学与地球物理

CiteScore

4.10

自引率

5.30%

发文量

审稿时长

6 months

期刊介绍： The Journal of Atmospheric and Solar-Terrestrial Physics (JASTP) is an international journal concerned with the inter-disciplinary science of the Earth''s atmospheric and space environment, especially the highly varied and highly variable physical phenomena that occur in this natural laboratory and the processes that couple them. The journal covers the physical processes operating in the troposphere, stratosphere, mesosphere, thermosphere, ionosphere, magnetosphere, the Sun, interplanetary medium, and heliosphere. Phenomena occurring in other "spheres", solar influences on climate, and supporting laboratory measurements are also considered. The journal deals especially with the coupling between the different regions. Solar flares, coronal mass ejections, and other energetic events on the Sun create interesting and important perturbations in the near-Earth space environment. The physics of such "space weather" is central to the Journal of Atmospheric and Solar-Terrestrial Physics and the journal welcomes papers that lead in the direction of a predictive understanding of the coupled system. Regarding the upper atmosphere, the subjects of aeronomy, geomagnetism and geoelectricity, auroral phenomena, radio wave propagation, and plasma instabilities, are examples within the broad field of solar-terrestrial physics which emphasise the energy exchange between the solar wind, the magnetospheric and ionospheric plasmas, and the neutral gas. In the lower atmosphere, topics covered range from mesoscale to global scale dynamics, to atmospheric electricity, lightning and its effects, and to anthropogenic changes.