A monitoring network for anomalous propagation of aeronautical VHF radio waves due to sporadic E in Japan by Keisuke Hosokawa, Jun Sakai, Ichiro Tomizawa, Susumu Saito, Takuya Tsugawa, Michi Nishioka, Mamoru Ishii

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Penetration of the electric fields of the geomagnetic sudden commencement over the globe as observed with the HF Doppler sounders and magnetometers by Takashi Kikuchi, Jaroslav Chum, Ichiro Tomizawa, Kumiko K. Hashimoto, Keisuke Hosokawa, Yusuke Ebihara, Kornyanat Hozumi, Pornchai Supnithi

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Penetration electric fields observed at middle and low latitudes during the 22 June 2015 geomagnetic storm by Kumiko K. Hashimoto, Takashi Kikuchi, Ichiro Tomizawa, Keisuke Hosokawa, Jaroslav Chum, Dalia Buresova, Masahito Nose, Kiyokazu Koga

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Software-defined radio-based HF doppler receiving system by Hiroyuki Nakata, Kenro Nozaki, Yuhei Oki, Keisuke Hosokawa, Kumiko K. Hashimoto, Takashi Kikuchi, Jun Sakai, Ichiro Tomizawa, Satoko Saita

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Monitoring of equatorial plasma bubbles using aeronautical navigation system: a feasibility study by Keisuke Hosokawa, Susumu Saito, Hiroyuki Nakata, Chien-Hung Lin, Jia-Ting Lin, Pornchai Supnithi, Ichiro Tomizawa, Jun Sakai, Toru Takahashi, Takuya Tsugawa, Michi Nishioka, Mamoru Ishii

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Instantaneous Achievement of the Hall and Pedersen–Cowling Current Circuits in Northern and Southern Hemispheres During the Geomagnetic Sudden Commencement on 12 May 2021 by Takashi Kikuchi, Tohru Araki, Kumiko K. Hashimoto, Yusuke Ebihara, Takashi Tanaka, Yukitoshi Nishimura, Geeta Vichare, Ashwini K. Sinha, Jaroslav Chum, Keisuke Hosokawa, Ichiro Tomizawa, Yoshimasa Tanaka, Yoshimasa Tanaka, Yoshimasa Tanaka, Akira Kadokura, Akira Kadokura, Akira Kadokura

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