Experimental Evidence of a Link Between Lightning and Magnetic Field Fluctuations in the Upper Ionosphere Observed by Swarm

0539654 - ÚFA 2022 RIV US eng J - Článek v odborném periodiku
Strumik, M. - Slominski, J. - Slominska, E. - Mlynarczyk, J. - Blecki, J. - Haagmans, R. - Kulak, A. - Popek, Martin - Martynski, K. - Wronowski, R.
Experimental Evidence of a Link Between Lightning and Magnetic Field Fluctuations in the Upper Ionosphere Observed by Swarm.
Geophysical Research Letters. Roč. 48, č. 4 (2021), č. článku e2020GL091507. ISSN 0094-8276. E-ISSN 1944-8007
Grant CEP: GA ČR GA20-09671S
Grant ostatní: AV ČR(CZ) AP1401
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378289
Klíčová slova: Ionosphere * lightning * magnetic fluctuations * Swarm satellites * waves
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 5.576, rok: 2021
Způsob publikování: Open access
https://oadoi.org/10.1029/2020GL091507

We present results of analysis of lightning observations and satellite measurements of ionospheric magnetic field fluctuations in the ultralow frequency (ULF) range. The fluctuations are measured by Swarm satellites, while the lightning observations are provided by the Geostationary Lightning Mapper (GLM) and the World ELF Radiolocation Array (WERA). We identify spatio‐temporal relationships that demonstrate a leakage of electromagnetic fluctuations caused by lightning into the upper ionosphere. Causal association between the two phenomena is evidenced by investigating relations between lightning and fluctuation properties. The presented results suggest that lightning generate ULF fluctuations in the ionosphere that can be detected by satellites, if the lightning‐satellite geographic distance is less than ∼5°. Typical properties of the fluctuations caused by lightning are described in the paper. To our knowledge, this is the first direct experimental confirmation of a link between lightning and magnetic field fluctuations in the upper ionosphere in the ULF range.
Trvalý link: http://hdl.handle.net/11104/0317359