| 极光带电导率的日夜变化对高纬电离层电场的影响 |
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| 引用本文： | 张顺荣,资民筠,沈长寿. 极光带电导率的日夜变化对高纬电离层电场的影响[J]. 北京大学学报(自然科学版), 1989, 0(3) |
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| 作者姓名： | 张顺荣 资民筠 沈长寿 |
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| 作者单位： | 北京大学地球物理学系，北京大学地球物理学系，北京大学地球物理学系 中国科学院武汉物理所，中国艺术研究院艺术科技研究室 |
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| 摘 要： | 在同时考虑极盖区电导率日大夜小和极光区电导率升高日小夜大两种效应的情况下,本文求出了高纬电场的分析解,并用其讨论了几个具体模式和对结果进行了分析。模式计算表明,极光带电导率升高的日夜变化对对流圈形态,电场分布和场向电流分布均有一定的影响,模式计算与观测比较有较好的一致性,这表明本文模式具有较好的应用意义。
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| 关 键 词： | 高纬电离层电场 对流圈 电导率日夜不均匀性 极光区 场向电流 |
The Day-night Gradient of the Conductivity within Auroral Zone and the Morphology of High-latitude E-field |
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| Zhang Shumrong zi Minyun Shen Changshou. The Day-night Gradient of the Conductivity within Auroral Zone and the Morphology of High-latitude E-field[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 1989, 0(3) |
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| Authors: | Zhang Shumrong zi Minyun Shen Changshou |
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| Affiliation: | Department of Geophysics |
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| Abstract: | In the paper presented, the effect of the day-night inhomogeneity of conductivity in both polar cap (larger by day) and the auroral zone (larger at night) is considered. The analytical solution is deduced and the results for different models are discussed. The model calculation indicates that the day-night gradient of the conductivity enhancement within auroral zone can influance the convection pattern and the distribution of electric fields and field-aligned currents. The comparison between model calculations and observations shows good agreement and this demonstrates the applicability of the model. |
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| Keywords: | the ionospheric electric field at the high latitude convection cells the day-night inhomogeneity of conductivity the auroral zone the field-aligned current |
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