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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Spatial scale and duration of one microburst region on 13 August 2015
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Spatial scale and duration of one microburst region on 13 August 2015

机译：空间一个微爆发的规模和持续时间2015年8月13日

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Prior studies of microburst precipitation have largely relied on estimates of the spatial scale and temporal duration of the microburst region in order to determine the radiation belt loss rate of relativistic electrons. These estimates have often relied on the statistical distribution of microburst events. However, few studies have directly observed the spatial and temporal evolution of a single microburst event. In this study, we combine Balloon Array for Radiation belt Relativistic Electron Losses balloon-borne X-ray measurements with Focused Investigations of Relativistic Electron Burst: Intensity, Range, and Dynamics II and AeroCube-6 CubeSat electron measurements to determine the spatial and temporal evolution of a microburst region in the morning MLT sector on 13 August 2015. The microburst region is found to extend across at least 4 h in local time in the morning sector, from 09:00 to 13:00 MLT, and from L of 5 out to 10. The microburst event lasts for nearly 9 h. Smaller scale structure is investigated using the dual AeroCube-6 CubeSats, and is found to be consistent with the spatial size of whistler mode chorus wave observations near the equatorial plane. Plain Language Summary Microbursts are very short (quarter of a second) bursts of electron radiation occurring in the highest levels of Earth's atmosphere. The causes of microbursts are as yet unproven. This study carefully analyzes the spatial location and temporal evolution of microbursts in a new and novel way, utilizing data from satellites as well as balloon-based measurements. Our findings help to establish a correlation between this important Space Physics phenomenon and possible causes that exist in Earth's Magnetosphere.
机译：之前的研究微爆发降水很大程度上依赖于估计的空间尺度和时间微爆发地区的持续时间为确定辐射带损失率相对论性电子。经常依赖的统计分布微爆发事件。直接观察到的空间和时间单个微爆发事件的演变。研究中,我们把气球阵列辐射气球携带带相对论电子损失x射线测量集中调查的相对论性电子破裂:强度、范围,和动力学二世和AeroCube-6立方体卫星电子测量来确定空间和微爆发地区的演化早上MLT部门2015年8月13日。扩展到微爆发地区被发现至少4 h在当地时间早上部门,从上午9点到下午一点MLT,从5 L10. 小尺度结构调查使用双重AeroCube-6立方体卫星,是发现与惠斯勒模式的空间大小一致合唱波观测在赤道附近飞机。很短的(25秒)的电子辐射发生在最高地球大气层的水平。微爆发尚未得到证实。仔细分析了空间位置和时间演化的新微爆发的新方法,利用卫星数据balloon-based测量。建立这个重要的之间的相关性空间物理现象和可能的原因存在于地球的磁气圈。

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