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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Radial profile of the magnetospheric plasma pressure extracted from magnetic field data
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Radial profile of the magnetospheric plasma pressure extracted from magnetic field data

机译：从磁场数据提取的磁层等离子体压力的径向分布

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摘要

We have solved the equation for magnetostatic equilibrium for an anisotropic plasma pressure this equation allows us to determine the pressure profile from a given magnetic field. We have used the magnetic field model of Ostapenko and Maltsev [1997], which is a valid representation of the magnetospheric field for distances ranging from 3 to 10 R-E (Earth radii). This model has as parameters the Dst and Kp indices, the vertical component of the interplanetary magnetic field, and the solar wind dynamic pressure. The radial profile of the magnetospheric plasma pressure computed for quiet conditions is close to that obtained from direct measurements. The effect of each model parameter on the profile has been studied. The total energy content for distances from 3 to 10 R-E appears to be controlled primarily by the solar wind dynamic pressure. [References: 25]
机译：我们已经解决了各向异性等离子体压力的静磁平衡方程，该方程使我们能够从给定的磁场中确定压力分布。我们已经使用了Ostapenko和Maltsev [1997]的磁场模型，该模型有效地表示了从3到10 R-E（地球半径）的距离的磁层磁场。该模型具有Dst和Kp指数，行星际磁场的垂直分量以及太阳风动压力作为参数。在安静条件下计算出的磁层等离子体压力的径向分布接近于直接测量获得的径向分布。已经研究了每个模型参数对轮廓的影响。距离3至10 R-E的总能量含量似乎主要受太阳风动压力控制。 [参考：25]

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