A non-intrusive method to determine atmospheric electric fields under thunderstorm conditions.

Trinh, G., Scholten, O., Builtink, S., Bonardi, A., Corstanje, A., Ebert, U., Enriquez, E., Falcke, H., Hörandel, J., Mitra, P., Mulrey, K., Nelles, A., Rachen, J., Rossetto, L., Rutjes, C., Schellart, P., Thoudam, S., ter Veen, S. & Winchen, T., 1-Apr-2017, In : EGU General Assembly. 19, p. 5013 1 p.

Research output: Contribution to journalMeeting AbstractAcademic

  • Gia Trinh
  • Olaf Scholten
  • Stijn Builtink
  • Antonio Bonardi
  • Arthur Corstanje
  • Ute Ebert
  • Emilo Enriquez
  • Heino Falcke
  • Jörg Hörandel
  • Pragati Mitra
  • Katie Mulrey
  • Anna Nelles
  • Jörg Rachen
  • Laura Rossetto
  • Casper Rutjes
  • Pim Schellart
  • Satyendra Thoudam
  • Sander ter Veen
  • Tobias Winchen
During thunderstorm conditions radio emission from extensive air showers are influenced by atmospheric electric fields. These effects are observed at LOw Frequency ARray (LOFAR) radio telescope. We have developed a non-intrusive method to determine the atmospheric electric fields by using the intensity data of the radio signals te{Sch14}. We show that the events under thunderstorm conditions have larger circular polarization component near the core of the shower than the events under fair weather conditions. We demonstrate quantitatively that this is related to the change in direction of the transverse current which is caused by the variation of the atmospheric electric fields. Therefore, the use of the circular polarization data puts strong additional constrains on the structure of the atmospheric electric fields than what could be achieved by using only the radio intensity. P. Schellart et al., arXiv:1406.1355 [astro-ph.HE].
Original languageEnglish
Pages (from-to)5013
Number of pages1
JournalEGU General Assembly
Publication statusPublished - 1-Apr-2017
Event19th EGU General Assembly, EGU2017 - Vienna, Austria
Duration: 23-Apr-201728-Apr-2017


19th EGU General Assembly, EGU2017


Vienna, Austria

Event: Conference

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ID: 56136974