Imaging of polar cap patches with a low-cost airglow camera: pilot observations in Svalbard, Norway

by Keisuke Hosokawa, Yasunobu Ogawa, Satoshi Taguchi
Published 2019-11-01

Simultaneous observations of noctilucent clouds and polar mesosphere summer echoes at Syowa Station, Antarctica

by Keisuke Hosokawa, Yasuo Takeda, Tadahiko Ogawa, Akira Kadokura, Akira Sessai Yukimatu, Natsuo Sato
Published 2013-11-01

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
Published 2020-07-01

A new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E)

by Satonori Nozawa, Tetsuya Kawabata, Keisuke Hosokawa, Yasunobu Ogawa, Takuo Tsuda, Akira Mizuno, Ryoichi Fujii, Chris Hall
Published 2018-12-01

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
Published 2021-01-01

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
Published 2020-05-01

Observations of equatorial plasma bubbles using a low-cost 630.0-nm all-sky imager in Ishigaki Island, Japan

by Keisuke Hosokawa, Kohei Takami, Susumu Saito, Yasunobu Ogawa, Yuichi Otsuka, Kazuo Shiokawa, Chia-Hung Chen, Chien-Hung Lin
Published 2020-05-01

Estimation of the emission altitude of pulsating aurora using the five-wavelength photometer

by Yuki Kawamura, Keisuke Hosokawa, Satonori Nozawa, Yasunobu Ogawa, Tetsuya Kawabata, Shin-Ichiro Oyama, Yoshizumi Miyoshi, Satoshi Kurita, Ryoichi Fujii
Published 2020-07-01

Auroral molecular-emission effects on the atomic oxygen line at 777.4 nm

by Shin-ichiro Oyama, Takuo T. Tsuda, Keisuke Hosokawa, Yasunobu Ogawa, Yoshizumi Miyoshi, Satoshi Kurita, Antti E. Kero, Ryoichi Fujii, Yoshimasa Tanaka, Akira Mizuno, Tetsuya Kawabata, Björn Gustavsson, Thomas Leyser
Published 2018-10-01

Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station

by Ryuho Kataoka, Takanori Nishiyama, Yoshimasa Tanaka, Akira Kadokura, Herbert Akihito Uchida, Yusuke Ebihara, Mitsumu K. Ejiri, Yoshihiro Tomikawa, Masaki Tsutsumi, Kaoru Sato, Yoshizumi Miyoshi, Kazuo Shiokawa, Satoshi Kurita, Yoshiya Kasahara, Mitsunori Ozaki, Keisuke Hosokawa, Shoya Matsuda, Iku Shinohara, Takeshi Takashima, Tatsuhiko Sato, Takefumi Mitani, Tomoaki Hori, Nana Higashio
Published 2019-01-01

Visualization of rapid electron precipitation via chorus element wave–particle interactions

by Mitsunori Ozaki, Yoshizumi Miyoshi, Kazuo Shiokawa, Keisuke Hosokawa, Shin-ichiro Oyama, Ryuho Kataoka, Yusuke Ebihara, Yasunobu Ogawa, Yoshiya Kasahara, Satoshi Yagitani, Yasumasa Kasaba, Atsushi Kumamoto, Fuminori Tsuchiya, Shoya Matsuda, Yuto Katoh, Mitsuru Hikishima, Satoshi Kurita, Yuichi Otsuka, Robert C. Moore, Yoshimasa Tanaka, Masahito Nosé, Tsutomu Nagatsuma, Nozomu Nishitani, Akira Kadokura, Martin Connors, Takumi Inoue, Ayako Matsuoka, Iku Shinohara
Published 2019-01-01

PSTEP: project for solar–terrestrial environment prediction

by Kanya Kusano, Kiyoshi Ichimoto, Mamoru Ishii, Yoshizumi Miyoshi, Shigeo Yoden, Hideharu Akiyoshi, Ayumi Asai, Yusuke Ebihara, Hitoshi Fujiwara, Tada-Nori Goto, Yoichiro Hanaoka, Hisashi Hayakawa, Keisuke Hosokawa, Hideyuki Hotta, Kornyanat Hozumi, Shinsuke Imada, Kazumasa Iwai, Toshihiko Iyemori, Hidekatsu Jin, Ryuho Kataoka, Yuto Katoh, Takashi Kikuchi, Yûki Kubo, Satoshi Kurita, Haruhisa Matsumoto, Takefumi Mitani, Hiroko Miyahara, Yasunobu Miyoshi, Tsutomu Nagatsuma, Aoi Nakamizo, Satoko Nakamura, Hiroyuki Nakata, Naoto Nishizuka, Yuichi Otsuka, Shinji Saito, Susumu Saito, Takashi Sakurai, Tatsuhiko Sato, Toshifumi Shimizu, Hiroyuki Shinagawa, Kazuo Shiokawa, Daikou Shiota, Takeshi Takashima, Chihiro Tao, Shin Toriumi, Satoru Ueno, Kyoko Watanabe, Shinichi Watari, Seiji Yashiro, Kohei Yoshida, Akimasa Yoshikawa
Published 2021-08-01

Ground-based instruments of the PWING project to investigate dynamics of the inner magnetosphere at subauroral latitudes as a part of the ERG-ground coordinated observation network

by Kazuo Shiokawa, Yasuo Katoh, Yoshiyuki Hamaguchi, Yuka Yamamoto, Takumi Adachi, Mitsunori Ozaki, Shin-Ichiro Oyama, Masahito Nosé, Tsutomu Nagatsuma, Yoshimasa Tanaka, Yuichi Otsuka, Yoshizumi Miyoshi, Ryuho Kataoka, Yuki Takagi, Yuhei Takeshita, Atsuki Shinbori, Satoshi Kurita, Tomoaki Hori, Nozomu Nishitani, Iku Shinohara, Fuminori Tsuchiya, Yuki Obana, Shin Suzuki, Naoko Takahashi, Kanako Seki, Akira Kadokura, Keisuke Hosokawa, Yasunobu Ogawa, Martin Connors, J. Michael Ruohoniemi, Mark Engebretson, Esa Turunen, Thomas Ulich, Jyrki Manninen, Tero Raita, Antti Kero, Arto Oksanen, Marko Back, Kirsti Kauristie, Jyrki Mattanen, Dmitry Baishev, Vladimir Kurkin, Alexey Oinats, Alexander Pashinin, Roman Vasilyev, Ravil Rakhmatulin, William Bristow, Marty Karjala
Published 2017-11-01