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Title: 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
Authors: 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  kyouindb  KAKEN_id  orcid (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
Author's alias: 能勢, 正仁
Keywords: All-sky airglow/aurora imager
Induction magnetometer
Loop antenna
EMCCD camera
Inner magnetosphere
SAR arc
Magnetospheric ELF/VLF wave
EMIC wave
Radiation belts
Issue Date: 28-Nov-2017
Publisher: Springer Nature
Journal title: Earth, Planets and Space
Volume: 69
Thesis number: 160
Abstract: 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, 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.
Rights: © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, 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.
DOI(Published Version): 10.1186/s40623-017-0745-9
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