Three-dimensional diffusion simulation of outer radiation belt electrons during the 9 October 1990 magnetic storm

Jay M. Albert; Nigel P. Meredith; Richard B. Horne

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Three-dimensional diffusion simulation of outer radiation belt electrons during the 9 October 1990 magnetic storm

机译：外的三维扩散模拟辐射带电子在10月9日1990年磁暴

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Relativistic (>1 MeV) electron flux increases in the Earth's radiation belts are significantly underestimated by models that only include transport and loss processes, suggesting that some additional acceleration process is required. Here we use a new, three-dimensional code that includes radial diffusion and quasi-linear pitch angle and energy diffusion due to chorus waves, including cross terms, to simulate the 9 October 1990 magnetic storm. The diffusion coefficients are activity dependent, and time-dependent boundary conditions are imposed on all six boundary faces, taken from fits to CRRES Medium Electrons A electron data. Although the main phase dropout is not fully captured, the persistent phase space density peaks observed during the recovery phase are well explained, but this requires both chorus wave acceleration and radial diffusion.

机译：相对论(> 1兆电子伏)电子通量增加地球辐射带明显通过模型只包括低估运输和损失过程,说明需要一些额外的加速过程。这里我们使用一个新的三维代码包括径向扩散和准线性由于合唱波角和能量扩散,包括交叉项,10月9日模拟1990磁暴。活动相关的,和时间吗边界条件对所有六个边界的脸,从符合退休研究中心中电子电子数据。阶段辍学是不完全的持续的相空间密度峰值在经济复苏阶段,很好地解释,但是这需要两个合唱波加速度和径向扩散。

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《Journal of Geophysical Research, A. Space Physics: JGR》 |2009年第9期|A09214:1-A09214:21|共21页
作者
Jay M. Albert; Nigel P. Meredith; Richard B. Horne;
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作者单位

Space Vehicles Directorate, Air Force Research Laboratory, Hanscom Air Force Base, Massachusetts, USA.;

British Antarctic Survey, Natural Environment Research Council,Cambridge, UK.;

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原文格式 PDF
正文语种英语
中图分类空间物理;
关键词
magnetic storms; Lateral diffusion; angle of pitchdiffusion coefficientradiation beltsimulatingACCELERATING(PROCESS)outer radiation belt;

机译：磁暴;横向扩散;俯仰角扩散系数辐射带模拟加速（PROCESS）外辐射带;

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Three-dimensional diffusion simulation of outer radiation belt electrons during the 9 October 1990 magnetic storm

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