High-Spatiotemporal Resolution Observations of Jupiter Lightning-Induced Radio Pulses Associated With Sferics and Thunderstorms

<strong>Abstract:</strong><br> Jupiter lightning discharges produce various kinds of phenomena including radio wave pulses at different frequencies. On 6 April 2019, the Juno Waves instrument captured an extraordinary series of radio pulses at frequencies below 150 kHz on timescales of submilliseconds. Quasi-simultaneous multi-instrument data show that the locations of their magnetic footprints are very close to the locations of UHF sferics recorded by the Juno MWR instrument. Hubble Space Telescope images show that the signature of active convection includes cloud-free clearings, in addition to the convective towers and deep water clouds that were also recognized in previous spacecraft observations of lightning source regions. Furthermore, the detections of 17 VLF/LF radio pulses suggest a minimum duration of lightning processes on the order of submilliseconds. These observations provide new constraints on the physical properties of Jupiter lightning. <strong>Note:</strong><br> This paper was re-submitted to Geophysical Research Letters for revision. This page provides the digital data for all figures in this paper; please read a readme file in each figure sub-directory.<strong>摘要：</strong><br>木星闪电放电可产生多种物理现象，其中涵盖不同频率的无线电波脉冲。2019年4月6日，朱诺号（Juno）搭载的朱诺波仪器（Juno Waves）捕捉到一系列非同寻常的无线电波脉冲，其频率低于150千赫兹，时标处于亚毫秒量级。准同步多仪器观测数据显示，这些脉冲的磁足点位置与朱诺微波辐射计（Juno MWR）记录到的特高频（UHF）天电信号的位置极为接近。哈勃空间望远镜（Hubble Space Telescope）的观测图像表明，活跃对流的特征除了此前航天器在闪电源区观测中识别出的对流塔与深水云之外，还包含无云晴空区域。此外，针对17次甚低频/低频（VLF/LF）无线电波脉冲的探测结果显示，闪电过程的最小持续时长约为亚毫秒量级。上述观测为木星闪电的物理特性提供了新的约束条件。<strong>注：</strong><br>本文已重新提交至《地球物理研究通讯》（Geophysical Research Letters）进行修订。本页面提供了本文所有配图的数字化数据，请查阅每个图子目录中的说明文件（readme）。