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.

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

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

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, shiokawa@stelab.nagoya-u.ac.jp)

Web page: http://stdb2.stelab.nagoya-u.ac.jp/omti/index.html

STEL magnetometer network operated by STEL, Nagoya University: fluxgate and

induction magnetometers

Contact: Kazuo Shiokawa (PI, shiokawa@stelab.nagoya-u.ac.jp)

Web page: http://stdb2.stelab.nagoya-u.ac.jp/magne/index.html

CDF database construction usable by TDAS is underway.

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)

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/

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

SuperDARN radar network operated by NIPR, NICT, and STEL

Hokkaido radar (STEL): Contact: Nozomu Nishitani (PI, nisitani@stelab.nagoya-u.ac.jp)

Web page: http://center.stelab.nagoya-u.ac.jp/hokkaido/index.html

King Salmon Radar (NICT): Contact: Tsutomu Nagatsuma (PI, tnagatsu@nict.go.jp)

Web page: http://www2.nict.go.jp/y/y223/obs/ksr/HF_radar_e.html

Syowa radars (NIPR): Contact: Akira Sessai Yukimatu (PI, sessai@uap.nipr.ac.jp)

CDF database construction usable by TDAS is underway.

National Institute of Polar Research

Unmanned magnetometer networks in Antarctica

Contact: Hisao Yamagishi (yamagisi@nipr.ac.jp) and Akira Kadokura (kadokura@nipr.ac.jp)

Web page: http://polaris.nipr.ac.jp/~uap-mon/NIPR_LPM.html

Fluxgate magnetometer

< 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 (kadokura@nipr.ac.jp)

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

Dome-Fuji

South Pole

Zhongshan

Syowa

National Institute of Polar Research

All-sky camera network in Antarctica

Contact: Akira Kadokura (kadokura@nipr.ac.jp), Hiroshi Miyaoka (miyaoka@nipr.ac.jp)

Yusuke Ebihara (ebihara@rish.kyoto-u.ac.jp) (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/

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,

ohya@faculty.chiba-u.jp)

-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, tsuchiya@pparc.gp.tohoku.ac.jp)