Use of fractal approach to investigate ionospheric conductivity in the auroral zone

Chernyshov A.A.; Mogilevsky M.M.; Kozelov B.V.

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Use of fractal approach to investigate ionospheric conductivity in the auroral zone

机译：利用分形方法对电离层进行调查在极光区电导率

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Fractal geometry is used to describe the spatial structure of the ionospheric conductivity. Topological values of fractal dimension and connectivity index, characterizing the structure of the Pedersen and Hall conductivities on the nightside of the auroral zone, are analytically obtained. Restrictions imposed on fractal structure of the ionospheric conductivity are analyzed in terms of the percolation of the ionospheric Pedersen and Hall currents. It is shown that the observed scaling for the fluctuations of electric field and for the auroral glow in the auroral region is well within the limitations imposed by the critical condition for percolation of Pedersen currents. The dimension of multiple arc structures corresponds well to fractal estimates of Hall conductivity. Correspondence of theoretical estimates and experimental results indicates validity of the fractal approach to describe processes in the auroral region.

机译：分形几何是用于描述空间电离层电导率的结构。分形维数和拓扑值连通性指数的结构特征他和大厅导率阴面的极光区分析获得的。电离层电导率的结构的渗流分析彼得森电离层和霍尔电流。表明,观察到的比例的的电场和波动极光在极光中发光区域内临界条件的限制皮德森洋流的渗透。维度对应多个弧结构分形霍尔电导的估计。对应的理论估计实验结果表明的有效性分形方法来描述过程极光的地区。

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《Journal of Geophysical Research, A. Space Physics: JGR》 |2013年第7期|4108-4118|共11页
作者
Chernyshov A.A.; Mogilevsky M.M.; Kozelov B.V.;
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作者单位

Space Research Institute of Russian Academy of Sciences, Profsoyuznaya 84/32, 117997, Moscow, Russian Federation;

Polar Geophysical Institute of Russian Academy of Sciences Murmansk Region, Apatity, Russian Federation;

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正文语种英语
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关键词
auroral zone; ionospheric conductivity; Pedersen currentsHall currentFractalscritical conditionPercolation;

机译：彼得森极光区;电离层电导率currentsHall currentFractalscriticalconditionPercolation;

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Use of fractal approach to investigate ionospheric conductivity in the auroral zone

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