TY - JOUR
T1 - Schumann resonance parameters at Kuju station during solar flares
AU - Ikeda, Akihiro
AU - Uozumi, Teiji
AU - Yoshikawa, Akimasa
AU - Fujimoto, Akiko
AU - Abe, Shuji
N1 - Funding Information:
The study was funded by The Mazda Foundation (2017). The induction magnetic field data is taken by International Center for Space Weather Science and Education, Kyushu University. The solar Xray and proton flux data are taken by GOES-10 satellite.
Funding Information:
The study was funded by The Mazda Foundation (2017). The induction magnetic field data is taken by International Center for Space Weather Science and Education, Kyushu University. The solar X-ray and proton flux data are taken by GOES-10 satellite.
Publisher Copyright:
© 2018 The Authors, published by EDP Sciences.
PY - 2018/11/7
Y1 - 2018/11/7
N2 - 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.
AB - 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.
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U2 - 10.1051/e3sconf/20186201012
DO - 10.1051/e3sconf/20186201012
M3 - Conference article
AN - SCOPUS:85057400883
SN - 2555-0403
VL - 62
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 01012
T2 - 9th International Conference "Solar-Terrestrial Relations and Physics of Earthquake Precursors", STRPEP 2018
Y2 - 17 October 2018 through 21 October 2018
ER -