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Outer zone energetic electron environment update

机译:外区高能电子环境更新

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Electron data (0.1 to 1.7 MeV) from the Medium Electrons Aspectrometer on CRRES were used to train neural networks to predictdaily averages of energetic fluxes at 5 energies and 6 L-values usingthe daily sum of the Kp magnetic field index. The trained networks werethen used to process the entire Kp index from 1932 to 1996 (six completesolar cycles), providing daily estimates of the electron fluxes for theentire period. Superposed-epoch analysis of the six cycles shows thefluxes are minimum about six months after the solar sunspot minimum andmaximize about three years after sunspot maximum. The variation over thesolar cycle is about a factor of 2.3. Specific outputs from the studyinclude long-term averages of fluxes, peak flux vs. energy and L, andflux vs. frequency-of-occurrence tables. The outputs were then used togenerate a new model, ESA-SEE1, as an update to AE8. This studyindicates that AE8 has excessive fluxes above 1 MeV beyond L=5.5, withthe discrepancy being an order of magnitude at geosynchronous orbit. Thehigh energy electrons peak in L about 0.5 L lower than indicated by AE8
机译:来自中等电子A的电子数据(0.1至1.7 MeV) CRRES上的光谱仪用于训练神经网络以进行预测 使用5个能量和6个L值的能量通量的日平均值 Kp磁场指数的每日总和。受过训练的网络是 然后用于处理从1932年到1996年的整个Kp指数(六个完整 太阳周期),提供每日的电子通量估算值 整个时期。六个周期的叠加时代分析显示 在太阳黑子最小的六个月后,通量最小。 在黑子最大后大约三年内最大。的变化 太阳周期大约是2.3倍。研究的具体产出 包括通量的长期平均值,峰值通量与能量和L的关系,以及 通量与出现频率表。然后将输出用于 生成新模型ESA-SEE1,作为AE8的更新。这项研究 表示AE8在1 MeV以上的通量超过L = 5.5 差异是地球同步轨道上的一个数量级。这 L中的高能电子峰比AE8指示的低约0.5 L

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