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タイトル: | 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 |
著者: | Shiokawa, Kazuo Katoh, Yasuo Hamaguchi, Yoshiyuki Yamamoto, Yuka Adachi, Takumi Ozaki, Mitsunori Oyama, Shin-Ichiro Nosé, Masahito Nagatsuma, Tsutomu Tanaka, Yoshimasa Otsuka, Yuichi Miyoshi, Yoshizumi Kataoka, Ryuho Takagi, Yuki Takeshita, Yuhei Shinbori, Atsuki Kurita, Satoshi https://orcid.org/0000-0002-1553-9557 (unconfirmed) Hori, Tomoaki Nishitani, Nozomu Shinohara, Iku Tsuchiya, Fuminori Obana, Yuki Suzuki, Shin Takahashi, Naoko Seki, Kanako Kadokura, Akira Hosokawa, Keisuke Ogawa, Yasunobu Connors, Martin Michael Ruohoniemi, J. Engebretson, Mark Turunen, Esa Ulich, Thomas Manninen, Jyrki Raita, Tero Kero, Antti Oksanen, Arto Back, Marko Kauristie, Kirsti Mattanen, Jyrki Baishev, Dmitry Kurkin, Vladimir Oinats, Alexey Pashinin, Alexander Vasilyev, Roman Rakhmatulin, Ravil Bristow, William Karjala, Marty |
著者名の別形: | 能勢, 正仁 |
キーワード: | All-sky airglow/aurora imager Induction magnetometer Riometer Loop antenna EMCCD camera Inner magnetosphere SAR arc Magnetospheric ELF/VLF wave EMIC wave Radiation belts |
発行日: | 28-Nov-2017 |
出版者: | Springer Nature |
誌名: | Earth, Planets and Space |
巻: | 69 |
論文番号: | 160 |
抄録: | The plasmas (electrons and ions) in the inner magnetosphere have wide energy ranges from electron volts to mega-electron volts (MeV). These plasmas rotate around the Earth longitudinally due to the gradient and curvature of the geomagnetic field and by the co-rotation motion with timescales from several tens of hours to less than 10 min. They interact with plasma waves at frequencies of mHz to kHz mainly in the equatorial plane of the magnetosphere, obtain energies up to MeV, and are lost into the ionosphere. In order to provide the global distribution and quantitative evaluation of the dynamical variation of these plasmas and waves in the inner magnetosphere, the PWING project (study of dynamical variation of particles and waves in the inner magnetosphere using ground-based network observations, http://www.isee.nagoya-u.ac.jp/dimr/PWING/) has been carried out since April 2016. This paper describes the stations and instrumentation of the PWING project. We operate all-sky airglow/aurora imagers, 64-Hz sampling induction magnetometers, 40-kHz sampling loop antennas, and 64-Hz sampling riometers at eight stations at subauroral latitudes (~ 60° geomagnetic latitude) in the northern hemisphere, as well as 100-Hz sampling EMCCD cameras at three stations. These stations are distributed longitudinally in Canada, Iceland, Finland, Russia, and Alaska to obtain the longitudinal distribution of plasmas and waves in the inner magnetosphere. This PWING longitudinal network has been developed as a part of the ERG (Arase)-ground coordinated observation network. The ERG (Arase) satellite was launched on December 20, 2016, and has been in full operation since March 2017. We will combine these ground network observations with the ERG (Arase) satellite and global modeling studies. These comprehensive datasets will contribute to the investigation of dynamical variation of particles and waves in the inner magnetosphere, which is one of the most important research topics in recent space physics, and the outcome of our research will improve safe and secure use of geospace around the Earth. |
著作権等: | © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
URI: | http://hdl.handle.net/2433/235013 |
DOI(出版社版): | 10.1186/s40623-017-0745-9 |
出現コレクション: | 学術雑誌掲載論文等 |
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