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Ground-based network
observations for investigation
of the inner magnetosphere
Shiokawa, K.1, Y. Miyoshi1, K. Keika2, M. Connors3, A.
Kadokura4, T. Nagatsuma5, N. Nishitani1, H. Ohya6, F.
Tsuchiya7, H. Yamagishi4 and A. S. Yukimatu4
1: STEL, Nagoya Univ., 2: NJIT, 3: Athabasca Univ., 4: NIPR, 5: NICT, 6:
Chiba Univ., and 7: Tohoku Univ.
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ERG satellite
ground network theory/modeling
imagers
HF radars
global MHD
particle/M-I coupling
The ERG
Project
radiation belts ring current
launch : December, 2015
ERG
magnetometers
Page 3
ring current
particles
radiation belts
plasmasphere
RBSP/ERG
ionosphere
thermosphere
magnetometer, imager, spectrometer, IS/MF/HF/VHF/FM-CW/meteor radar,
LF/VLF receiver, GPS receiver, lidar
aurora SAR arcs
atmospheric
waves
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OMTIs optical imager network operated by STEL, Nagoya University: airglow/aurora
imagers, Fabry-Perot interferometers, meridian-scanning photometers, and airglow
temperature photometers
Contact: Kazuo Shiokawa (PI, [email protected] )
Web page: http://stdb2.stelab.nagoya-u.ac.jp/omti/index.html
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STEL magnetometer network operated by STEL, Nagoya University: fluxgate and
induction magnetometers
Contact: Kazuo Shiokawa (PI, [email protected] )
Web page: http://stdb2.stelab.nagoya-u.ac.jp/magne/index.html
CDF database construction usable by TDAS is underway.
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Athabasca AUGO-II automated routine operation at L=4.4 by Athabasca Univ., STEL, Nagoya Univ., Kanazawa Univ., and Tohoku Univ.
* all-sky airglow imager: 5577,6300, 4861, 5893, 8446
time resolution 1.5-10 min (STEL)
* meridian-scanning photometer: 5 points in the sky, 4861, 4278 (STEL)
* induction magnetometer: 64Hz sampling, peak at 5Hz (STEL)
* all-sky EMCCD camera: 5577, 6300, BG3,
time resolution: a few sec (Athabasca Univ.)
* LF standard radio wave receiver (Tohoku Univ.)
* 2ch VLF Antenna + 200-300m cable 100kHz sampling (STEL/Kanazawa
Univ.)
* 1ch riometer + 25m cable (STEL)
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All-sky camera
VLF antenna
Induction magnetometer
Isolated proton aurora associated with EMIC waves
EMIC waves Whistler-mode waves
10min
Fre
qu
en
cy (
kHz)
0
10
Sakaguchi et al. (2008)
z)
http://stdb2.stelab.nagoya-u.ac.jp/omti/ http://stdb2.stelab.nagoya-u.ac.jp/magne/ http://stdb2.stelab.nagoya-u.ac.jp/vlf/
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Magnetometer & HF radar
observations in Far East Siberia
Domestic Ionosonde
Network & Hiraiso
Solar Observatory
NICT Space Weather Monitoring Networks
(NICT-SWM)
HF radar
Hiraiso Solar Observatory
Ionosonde
South-East Asia low
latitude IOnospheric
Network (SEALION)
Magnetometer
Ionospheric
observation at
Syowa Station
National Institute of Information and Communications Technology
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SuperDARN radar network operated by NIPR, NICT, and STEL
Hokkaido radar (STEL): Contact: Nozomu Nishitani (PI, [email protected] )
Web page: http://center.stelab.nagoya-u.ac.jp/hokkaido/index.html
King Salmon Radar (NICT): Contact: Tsutomu Nagatsuma (PI, [email protected] )
Web page: http://www2.nict.go.jp/y/y223/obs/ksr/HF_radar_e.html
Syowa radars (NIPR): Contact: Akira Sessai Yukimatu (PI, [email protected] )
CDF database construction usable by TDAS is underway.
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National Institute of Polar Research
Unmanned magnetometer networks in Antarctica
Contact: Hisao Yamagishi ([email protected] ) and Akira Kadokura ([email protected] )
Web page: http://polaris.nipr.ac.jp/~uap-mon/NIPR_LPM.html
Fluxgate magnetometer
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< Iceland > All-sky imager
Scanning photometer
Fluxgate magnetometer
Induction magnetometer
Imaging Riometer
< Syowa Station > All-sky imager
Scanning photometer
Fluxgate magnetometer
Induction magnetometer
Imaging Riometer
VLF receiver
National Institute of Polar Research
Conjugate Observation between Syowa and Iceland
Contact: Akira Kadokura ([email protected] )
Web page: http://polaris.nipr.ac.jp/~aurora/uapm/ConjugateObsTop.html
http://polaris.nipr.ac.jp/~aurora/icam/
CDF database construction usable by TDAS is underway
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Dome-Fuji
South Pole
Zhongshan
Syowa
National Institute of Polar Research
All-sky camera network in Antarctica
Contact: Akira Kadokura ([email protected] ), Hiroshi Miyaoka ([email protected] )
Yusuke Ebihara ([email protected] ) (South Pole imager)
Web page: http://polaris.nipr.ac.jp/~acaurora/aurora/Syowa/
http://polaris.nipr.ac.jp/~asi-dp/watcam/
http://polaris.nipr.ac.jp/~asi-dp/
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Measurements of tweek reflection
height (=D-region ionosphere
height) on Oct 2000 storm (Ohya
et al., JASTP, 2006)
Oct.2 Oct.3
① ② ③
AVON (Asia VLF Observation Network)
operated by Chiba University: VLF radio-
wave receiver network over Asia
Contact: Hiroyo Ohya (PI,
[email protected] )
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-150 -100 -500
20
40
60
80
L=2
L=3
L=4
L=6L=5
Geographic Longitude
Geogra
phic
Lati
tude
NAA
NAU
NDK NLK
WWVB
NPM
ATH
to NRK
Ny-Ålesund
77
.5H
z
-20 0 20 40
40
50
60
70
80
L=6
L=5
L=4
L=3
L=2
Geographic longitude
Geo
gra
ph
ic L
ati
tud
e
LF/VLF receiver network operated by Tohoku University: LF/VLF standard radio wave
receivers in Japan (Rikubetsu), Ny-Alesund (Svalbard), and Athabasca (Canada).
Contact: Fuminori Tsuchiya (PI, [email protected] )