The STEL induction magnetometer network for observation of high-frequency geomagnetic pulsations

K. Shiokawa; R. Nomura; K. Sakaguchi; Y. Otsuka; Y. Hamaguchi; M. Satoh; Y. Katoh; Y. Yamamoto; B. M. Shevtsov; S. Smirnov; I. Poddelsky; M. Connors

doi:10.5047/eps.2010.05.003

The STEL induction magnetometer network for observation of high-frequency geomagnetic pulsations

K. Shiokawa, R. Nomura, K. Sakaguchi, Y. Otsuka, Y. Hamaguchi, M. Satoh, Y. Katoh, Y. Yamamoto, B. M. Shevtsov, S. Smirnov, I. Poddelsky, M. Connors

Centre for Science

Research output: Contribution to journal › Journal Article › peer-review

26 Citations (Scopus)

Abstract

The Solar-Terrestrial Environment Laboratory (STEL) induction magnetometer network has been developed to investigate the propagation characteristics of high-frequency geomagnetic pulsations in the Pc1 frequency range (0.2-5 Hz). Five induction magnetometers were installed in the period 2005-2008 at Athabasca in Canada, Magadan and Paratunka in Far East Russia, and Moshiri and Sata in Japan. The sensitivity of these magnetometers is between 0.3 and 13 V/nT at turnover frequencies of 1.7-5.5 Hz. GPS time pulses are used for accurate triggering of the 64-Hz data sampling. We show examples of PiB/Pc1 magnetic pulsations observed at these five stations, as well as the harmonic structure of ionospheric Alfvén resonators observed at Moshiri. We found that the Pc1 packets are slightly modulated as they propagate from high to low latitudes in the ionospheric duct. These network observations are expected to contribute to our understanding of Pc1-range magnetic pulsations and their interaction with relativistic electrons by combining the obtained results with future satellite missions that observe radiation belt particles.

Original language	English
Pages (from-to)	517-524
Number of pages	8
Journal	Earth, Planets and Space
Volume	62
Issue number	6
DOIs	https://doi.org/10.5047/eps.2010.05.003
Publication status	Published - 2010

Keywords

Ground network
Induction magnetometer
Ionospheric alfvé
N resonator
Pc 1
ULF wave

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10.5047/eps.2010.05.003

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@article{587c9a8ee7ab4986bf0033b74505dc20,

title = "The STEL induction magnetometer network for observation of high-frequency geomagnetic pulsations",

abstract = "The Solar-Terrestrial Environment Laboratory (STEL) induction magnetometer network has been developed to investigate the propagation characteristics of high-frequency geomagnetic pulsations in the Pc1 frequency range (0.2-5 Hz). Five induction magnetometers were installed in the period 2005-2008 at Athabasca in Canada, Magadan and Paratunka in Far East Russia, and Moshiri and Sata in Japan. The sensitivity of these magnetometers is between 0.3 and 13 V/nT at turnover frequencies of 1.7-5.5 Hz. GPS time pulses are used for accurate triggering of the 64-Hz data sampling. We show examples of PiB/Pc1 magnetic pulsations observed at these five stations, as well as the harmonic structure of ionospheric Alfv{\'e}n resonators observed at Moshiri. We found that the Pc1 packets are slightly modulated as they propagate from high to low latitudes in the ionospheric duct. These network observations are expected to contribute to our understanding of Pc1-range magnetic pulsations and their interaction with relativistic electrons by combining the obtained results with future satellite missions that observe radiation belt particles.",

keywords = "Ground network, Induction magnetometer, Ionospheric alfv{\'e}, N resonator, Pc 1, ULF wave",

author = "K. Shiokawa and R. Nomura and K. Sakaguchi and Y. Otsuka and Y. Hamaguchi and M. Satoh and Y. Katoh and Y. Yamamoto and Shevtsov, {B. M.} and S. Smirnov and I. Poddelsky and M. Connors",

note = "Funding Information: Acknowledgments. We thank M. Sera and Y. Ikegami at the Moshiri observatory of the Solar-Terrestrial Environment Laboratory, Nagoya University, all the staff of the Institute of Cosmophysical Research and Radiowave Propagation (IKIR), and I. Shelton and I. Schofield of Athabasca University, for their help and support regarding the operation of the induction magnetometers. This work was carried out under an agreement between IKIR and STEL on the international project “Ground and Satellite Measurements of Geospace Environment in the Far Eastern Russia and Japan”. This work was supported by Grants-in-Aid for Scientific Research (16403007, 18403011, 19403010, and 20244080), the 21th Century COE Program (Dynamics of the Sun-Earth-Life Interactive System, No. G-4), the Global COE Program of Nagoya University “Quest for Fundamental Principles in the Universe (QFPU)”, and the Special Funds for Education and Research (Energy Transport Processes in Geospace) from MEXT, Japan.",

year = "2010",

doi = "10.5047/eps.2010.05.003",

language = "English",

volume = "62",

pages = "517--524",

number = "6",

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TY - JOUR

T1 - The STEL induction magnetometer network for observation of high-frequency geomagnetic pulsations

AU - Shiokawa, K.

AU - Nomura, R.

AU - Sakaguchi, K.

AU - Otsuka, Y.

AU - Hamaguchi, Y.

AU - Satoh, M.

AU - Katoh, Y.

AU - Yamamoto, Y.

AU - Shevtsov, B. M.

AU - Smirnov, S.

AU - Poddelsky, I.

AU - Connors, M.

N1 - Funding Information: Acknowledgments. We thank M. Sera and Y. Ikegami at the Moshiri observatory of the Solar-Terrestrial Environment Laboratory, Nagoya University, all the staff of the Institute of Cosmophysical Research and Radiowave Propagation (IKIR), and I. Shelton and I. Schofield of Athabasca University, for their help and support regarding the operation of the induction magnetometers. This work was carried out under an agreement between IKIR and STEL on the international project “Ground and Satellite Measurements of Geospace Environment in the Far Eastern Russia and Japan”. This work was supported by Grants-in-Aid for Scientific Research (16403007, 18403011, 19403010, and 20244080), the 21th Century COE Program (Dynamics of the Sun-Earth-Life Interactive System, No. G-4), the Global COE Program of Nagoya University “Quest for Fundamental Principles in the Universe (QFPU)”, and the Special Funds for Education and Research (Energy Transport Processes in Geospace) from MEXT, Japan.

PY - 2010

Y1 - 2010

N2 - The Solar-Terrestrial Environment Laboratory (STEL) induction magnetometer network has been developed to investigate the propagation characteristics of high-frequency geomagnetic pulsations in the Pc1 frequency range (0.2-5 Hz). Five induction magnetometers were installed in the period 2005-2008 at Athabasca in Canada, Magadan and Paratunka in Far East Russia, and Moshiri and Sata in Japan. The sensitivity of these magnetometers is between 0.3 and 13 V/nT at turnover frequencies of 1.7-5.5 Hz. GPS time pulses are used for accurate triggering of the 64-Hz data sampling. We show examples of PiB/Pc1 magnetic pulsations observed at these five stations, as well as the harmonic structure of ionospheric Alfvén resonators observed at Moshiri. We found that the Pc1 packets are slightly modulated as they propagate from high to low latitudes in the ionospheric duct. These network observations are expected to contribute to our understanding of Pc1-range magnetic pulsations and their interaction with relativistic electrons by combining the obtained results with future satellite missions that observe radiation belt particles.

AB - The Solar-Terrestrial Environment Laboratory (STEL) induction magnetometer network has been developed to investigate the propagation characteristics of high-frequency geomagnetic pulsations in the Pc1 frequency range (0.2-5 Hz). Five induction magnetometers were installed in the period 2005-2008 at Athabasca in Canada, Magadan and Paratunka in Far East Russia, and Moshiri and Sata in Japan. The sensitivity of these magnetometers is between 0.3 and 13 V/nT at turnover frequencies of 1.7-5.5 Hz. GPS time pulses are used for accurate triggering of the 64-Hz data sampling. We show examples of PiB/Pc1 magnetic pulsations observed at these five stations, as well as the harmonic structure of ionospheric Alfvén resonators observed at Moshiri. We found that the Pc1 packets are slightly modulated as they propagate from high to low latitudes in the ionospheric duct. These network observations are expected to contribute to our understanding of Pc1-range magnetic pulsations and their interaction with relativistic electrons by combining the obtained results with future satellite missions that observe radiation belt particles.

KW - Ground network

KW - Induction magnetometer

KW - Ionospheric alfvé

KW - N resonator

KW - Pc 1

KW - ULF wave

UR - http://www.scopus.com/inward/record.url?scp=85032070324&partnerID=8YFLogxK

U2 - 10.5047/eps.2010.05.003

DO - 10.5047/eps.2010.05.003

M3 - Journal Article

AN - SCOPUS:85032070324

SN - 1343-8832

VL - 62

SP - 517

EP - 524

JO - Earth, Planets and Space

JF - Earth, Planets and Space

IS - 6

ER -

The STEL induction magnetometer network for observation of high-frequency geomagnetic pulsations

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Keywords

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