Dependencies of GPS Scintillation Indices on the Ionospheric Plasma Drift and Rate of Change of TEC Around the Dawn Sector of the Polar Ionosphere

Y. Wang; P. T. Jayachandran; Y.-Z. MaQ.-H. ZhangZ.-Y. XingJ. M. RuohoniemiS. G. ShepherdM. Lester

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Dependencies of GPS Scintillation Indices on the Ionospheric Plasma Drift and Rate of Change of TEC Around the Dawn Sector of the Polar Ionosphere

机译：Dependencies of GPS Scintillation Indices on the Ionospheric Plasma Drift and Rate of Change of TEC Around the Dawn Sector of the Polar Ionosphere

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The dependencies of global positioning system (GPS) scintillation indices on ionospheric plasma flow and the rate of change of total electron content (TEC) around the dawn sector for the first time of the polar ionosphere are investigated. The phase scintillation index (σ_φ) derived from GPS measurements of the Canadian High Arctic Ionospheric Network (CHAIN) shows linear dependencies on both the plasma drift speed measured by the SuperDARN radar and on the rate of change of TEC estimated from the GPS receivers of CHAIN. However, the amplitude scintillation index (S_4) does not show any dependence on the plasma flow or the rate of change of TEC. These results further support Wang et al. (2018), https://doi.org/10.1002/2017JA024805 at the noon sector. The dependence of the phase scintillation index on the plasma flow further evidences that the standard phase scintillation index is dominated by refractive variations due to the use of a fixed cut-off frequency of 0.1 Hz while detrending the phase observable. The dependence of the phase scintillation index on the rate of change of TEC consolidates the dominance of refractive variations inside.

机译：全球定位系统的依赖在电离层等离子体(GPS)闪烁指数总电子的流动和变化的速度内容(TEC)的黎明部门第一次的极地电离层调查。来自加拿大的GPS测量结果高北极电离层网络(链)所示线性依赖于等离子体漂移由SuperDARN雷达和速度测量从GPS的变化率TEC估计接收器链。闪烁指数(S_4)不显示任何的等离子体流或速度的依赖TEC的变化。et al。(2018),https://doi.org/10.1002/2017JA024805在中午部门。指数的进一步证据,等离子体流闪烁指数标准的阶段由屈光变化由于使用一个固定的截止频率的0.1赫兹可见消除趋势的阶段。阶段的闪烁指数的速度TEC巩固的主导地位的变化屈光变化。

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《Journal of Geophysical Research, A. Space Physics: JGR》 |2022年第11期|e2022JA030870-1-e2022JA030870-9|共9页
作者
Y. Wang; P. T. Jayachandran; Y.-Z. MaQ.-H. ZhangZ.-Y. XingJ. M. RuohoniemiS. G. ShepherdM. Lester;
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Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, China;

Physics Department, University of New Brunswick, Fredericton, NB, Canada;

Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA, USAThayer School of Engineering, Dartmouth College, Hanover, NH, USADepartment of Physics and Astronomy, University of Leicester, Leicester, UK;

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中图分类空间物理;地球物理学;
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Dependencies of GPS Scintillation Indices on the Ionospheric Plasma Drift and Rate of Change of TEC Around the Dawn Sector of the Polar Ionosphere

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