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

0531478 - ÚFA 2021 RIV US eng J - Journal Article
Imai, M. - Wong, M. H. - Kolmašová, Ivana - Brown, S. T. - Santolík, Ondřej - Kurth, W. S. - Hospodarsky, G. B. - Bolton, S.J. - Levin, S. M.
High-Spatiotemporal Resolution Observations of Jupiter Lightning-Induced Radio Pulses Associated With Sferics and Thunderstorms.
Geophysical Research Letters. Roč. 47, č. 15 (2020), č. článku e2020GL088397. ISSN 0094-8276. E-ISSN 1944-8007
Grant - others:AV ČR(CZ) AP1401
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:68378289
Keywords : Jupiter * lightning * Juno * Hubble Space Telescope * waves * MWR
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 4.720, year: 2020
Method of publishing: Limited access
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020GL088397

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 ultrahigh frequency (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 very low frequency/low‐frequency (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.
Permanent Link: http://hdl.handle.net/11104/0312965