Magnetosphere夜间能量释放动力学的不同标度区
Distinct Scaling Regimes of Energy Release Dynamics in the Nighttime Magnetosphere
摘要：
基于时空分析的极地紫外线图像，我们表明，极光发射事件，启动赤道各向同性边界（IB）从一个随时间变化的经验模型，有系统的能量，功率，面积和寿命概率分布的幂律斜率较陡的事件，启动极向IB。低纬度组的事件包含一个独特的亚暴规模的扰动违反幂律行为的子群，而高纬度组的描述几乎完美的幂律统计在整个范围内的尺度研究。得到的结果表明，等离子体片的内部和外部的特点是在这些地区的不同物理暗示的突发能量耗散的标度制度有很大的不同。
英文摘要：
Based on a spatiotemporal analysis of POLAR UVI images, we show that the auroral emission events that initiate equatorward of the isotropic boundary (IB) obtained from a time-dependent empirical model, have systematically steeper power-law slopes of energy, power, area and lifetime probability distributions compared to the events that initiate poleward of the IB. The low-latitude group of events contains a distinct subpopulation of substorm-scale disturbances violating the power-law behavior, while the high latitude group is described by nearly perfect power-law statistics over the entire range of scales studied. The results obtained indicate that the inner and outer portions of the plasma sheet are characterized by substantially different scaling regimes of bursty energy dissipation suggestive of different physics in these regions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
