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首页> 外文期刊>Acta Geophysica Polonica >PHYSICAL MODELLING OF ELECTROMAGNETIC FIELD OF AURORAL ELECTROJET
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PHYSICAL MODELLING OF ELECTROMAGNETIC FIELD OF AURORAL ELECTROJET

机译：电动电子枪电磁场的物理建模

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摘要

The physical modelling method was used to investigate the electromagnetic field of a source imitating the ionospheric electrojet on the surface of three-layer horizontally-homogeneous medium which models the Earth's deep section. Mag-netotelluric sounding curves and the spatial structure of electromagnetic field components of the auroral source scale model were estimated. A comparison of the results with those obtained in plane homogeneous field and in the field of vertical magnetic dipole located at some altitude above the surface of physical model revealed the following regularities. In the electrojet model field, some specific areas are distinguish with the different types of apparent resistivity curves: over a small area under the centre of electrojet, the curves of apparent resistivity are identical with those of the magnetic dipole; over a great territory under the electrojet, the results of MT soundings are similar to those obtained in the field of a plane homogeneous wave; under the edges of electrojet, substantial deviations from the plane homogeneous source are observed.
机译：物理建模方法用于研究模拟地球深部的三层水平均匀介质表面上模拟电离层电喷源的电磁场。估计了大地电磁测深曲线和极光源尺度模型的电磁场分量的空间结构。将结果与在平面均质场和位于物理模型表面上方某个高度的垂直磁偶极子场中获得的结果进行比较，发现以下规律。在电喷模型领域，某些特定区域通过不同类型的视在电阻率曲线得以区分：在电喷中心下方的小区域内，视在电阻率曲线与磁偶极曲线相同；在电喷作用下的大范围内，MT测深的结果类似于在平面均质波领域获得的结果。在电喷的边缘，观察到与平面均匀源的明显偏差。

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