| 一个准稳态的全球大气电路模式 |
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| 引用本文： | 张义军,言穆弘.一个准稳态的全球大气电路模式[J].高原气象,1990,9(3):293-306. |
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| 作者姓名： | 张义军 言穆弘 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所
(张义军)，中国科学院兰州高原大气物理研究所(言穆弘) |
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| 摘 要： | 本文用一个全球大气电导率模式和一个全球大气电路模式,计算了地形、大气气溶胶及太阳活动对大气电参量的影响,并估算了它们对地面电流密度和电场的分布影响。结果表明:地形的存在使电离层电势增加,雷暴分布的改变对大气电参量平均值无影响;气溶胶浓度与电离层电势及晴天电阻成正相关。宇宙射线与电离层电势及气—地电流成正相关;气溶胶浓度和宇宙射线的变化也会影响到晴天区电场以及雷暴区地面电流密度和电场;太阳质子流的注入使全球地面电场和电流密度增大,电离层电势不变。
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| 关 键 词： | 全球电路 日地关系 雷暴 |
A QUASI-STATIC MODEL OF GLOBAL ATMOSPHERIC ELECTRICITY |
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| Zhang Yijun Yan Muhong.A QUASI-STATIC MODEL OF GLOBAL ATMOSPHERIC ELECTRICITY[J].Plateau Meteorology,1990,9(3):293-306. |
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| Authors: | Zhang Yijun Yan Muhong |
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| Abstract: | The effects of the earth orography, aerosol and solar activity on atmospheric electric parameters are calculated by using a model of global atmospheric conductivity and a model of global atmospheric electric circuit. Their effects on distribution of ground electric field and current density are also evaluated. The result indicate that existence of the earth orography makes the ionospheric potential increase. The change of thunderstorm distribution has not effect on average value of atmospheric electric parameters. The aerosol concentration is positively interralated with the ionospheric potential and fair weather resistance, so does the cosmic ray with ionospyheric potential and air-earth current density. The changs of aerosol concentration and cosmic ray also affects the electric field in fair weather regions, the ground current density and the electric field. When solar proton enters into atmosphere, the global ground corrent density and electric field increase, ionospheric potential, however, does not change. |
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| Keywords: | Global electrical circuiti Solar-terrestrial relationstip Thunderstorm |
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