10 Oct 2022
10 Oct 2022

In situ ground-based mobile measurement of lightning events above central Europe

Jakub Kákona1, Jan Mikeš1, Iva Ambrožová2, Ondřej Ploc2, Olena Velychko2, Lembit Sihver2,3, and Martin Kákona2 Jakub Kákona et al.
  • 1Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 2, 166 27 Prague, Czech Republic
  • 2Nuclear Physics Institute of the Czech Academy of Sciences, Husinec - ˇRež 130, 250 68 ˇRež, Cech Republic
  • 3Department of Radiation Physics, Atominstitut, Technische Universität Wien, Vienna, Austria

Abstract. This article describes the equipment, and its advantages, used for in-situ ground measurements of thunderstorm phenomena using measuring cars. By using all-sky high-speed cameras, radio receivers, and electric field measurements, typical lightning discharges in the central Europe region have been characterized. Measurements of ionizing radiation during storms using a gamma spectrometer were also performed. At the ground level, no ionizing radiation originating in the storm cloud was detected even though during other experiments, using the same equipment at lower altitudes corresponding to the lower part of the storm clouds, ionizing radiation was detected. We showed that radio antennas with appropriately constructed receivers and all-sky high-speed cameras are devices that can significantly contribute to the understanding of processes taking place in the storm cloud during lightning discharges. On the contrary, measurements of the vertical electric field did not provide any new information about the processes occurring in the thunderclouds.

Jakub Kákona et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-379', Anonymous Referee #2, 11 Nov 2022
    • AC1: 'Reply on RC1', Jakub Kákona, 15 Nov 2022
  • RC2: 'Comment on egusphere-2022-379', Anonymous Referee #1, 25 Nov 2022

Jakub Kákona et al.


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Latest update: 29 Nov 2022
Short summary
Storm activity is sometimes associated with the generation of ionizing radiation. Our motivation for performing the research was to understand its origin. Using measuring cars fitted with new instruments, it was found that the duration of lightning is longer than generally thought. In most cases, lightning occurs only inside the cloud, but rarely they are visible outside as well. In such cases, the course of emission over time can be used to assume what it looks like inside the cloud.