Schumann resonance parameters at Kuju station during solar flares

Akihiro Ikeda, Teiji Uozumi, Akimasa Yoshikawa, Akiko Fujimoto, Shuji Abe

Research output: Contribution to journalConference articlepeer-review


We examined the Schumann resonance (SR) at low-latitude station KUJ by comparing with solar X-ray flux and solar proton flux at a geostationary orbit. For intense solar activity in October-November 2003, the reaction of the SR frequency to X-ray enhancement and SPEs was different. The SR frequency in H component increased at the time of the Xray enhancement. The response of SR seems to be caused by the increase of the electron density in the ionospheric D region which ionized by the enhanced solar X-ray flux. In the case of the SPEs, the SR frequency in D component decreased with enhancement of solar proton flux. We suggest that the SPEs caused the decrease of altitude on the ionopheric D region at high-latitude region, and the SR frequency decreased.

Original languageEnglish
Article number01012
JournalE3S Web of Conferences
Publication statusPublished - Nov 7 2018
Event9th International Conference "Solar-Terrestrial Relations and Physics of Earthquake Precursors", STRPEP 2018 - Paratunka, Kamchatka Region, Russian Federation
Duration: Oct 17 2018Oct 21 2018

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)


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