Japan Geoscience Union Meeting 2018

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[JJ] Oral

P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM18] Physics and Chemistry in the Atmosphere and Ionosphere

Tue. May 22, 2018 1:45 PM - 3:15 PM 304 (3F International Conference Hall, Makuhari Messe)

convener:Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Takuya Tsugawa(National Institute of Information and Communications Technology), Seiji Kawamura(国立研究開発法人 情報通信研究機構), Chairperson:Yuta Hozumi(電気通信大学), Otsuka Yuichi

2:15 PM - 2:30 PM

[PEM18-03] Electromagnetic interaction between currents flowing in the ionospheric and ocean

*Masahiko Takeda1 (1.Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University)

Keywords:geomagnetic variation, ionosphere, ocean, electromagnetic induction, electric conductivity, UT variation

Induced currents flowing in the ionosphere and land-ocean shell induced by the external magnetic field variation were estimated for the P10 mode including the effects of the mutual induction. It was shown that the currents shows UT variation due the land-ocean distribution for the period of less than 10 min. Induced currents by other modes will be will be considered in the presentation.