Volume 128, Issue 8 e2023JA031527
Method

A Ground-Based Instrument Suite for Integrated High-Time Resolution Measurements of Pulsating Aurora With Arase

K. Hosokawa

Corresponding Author

K. Hosokawa

Graduate School of Communication Engineering and Informatics, University of Electro- Communications, Tokyo, Japan

Correspondence to:

K. Hosokawa,

[email protected]

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S.-I. Oyama

S.-I. Oyama

Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan

National Institute of Polar Research, Tokyo, Japan

University of Oulu, Oulu, Finland

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Y. Ogawa

Y. Ogawa

National Institute of Polar Research, Tokyo, Japan

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Y. Miyoshi

Y. Miyoshi

Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan

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S. Kurita

S. Kurita

Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan

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M. Teramoto

M. Teramoto

Kyushu Institute of Technology, Fukuoka, Japan

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S. Nozawa

S. Nozawa

Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan

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T. Kawabata

T. Kawabata

Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan

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Y. Kawamura

Y. Kawamura

Graduate School of Communication Engineering and Informatics, University of Electro- Communications, Tokyo, Japan

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Y.-M. Tanaka

Y.-M. Tanaka

National Institute of Polar Research, Tokyo, Japan

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H. Miyaoka

H. Miyaoka

National Institute of Polar Research, Tokyo, Japan

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R. Kataoka

R. Kataoka

National Institute of Polar Research, Tokyo, Japan

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K. Shiokawa

K. Shiokawa

Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan

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U. Brändström

U. Brändström

The Swedish Institute of Space Physics, Kiruna, Sweden

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E. Turunen

E. Turunen

Sodankylä Geophysical Observatory, Sodankylä, Finland

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T. Raita

T. Raita

Sodankylä Geophysical Observatory, Sodankylä, Finland

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M. G. Johnsen

M. G. Johnsen

Tromsø Geophysical Observatory, UiT, The Arctic University of Norway, Tromsø, Norway

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C. Hall

C. Hall

Tromsø Geophysical Observatory, UiT, The Arctic University of Norway, Tromsø, Norway

Deceased 9 August 2021.

Contribution: Resources, Supervision, Project administration

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D. Hampton

D. Hampton

Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA

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Y. Ebihara

Y. Ebihara

Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan

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Y. Kasahara

Y. Kasahara

Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan

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S. Matsuda

S. Matsuda

Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan

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I. Shinohara

I. Shinohara

Institute of Space and Astronautical Science, Sagamihara, Japan

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R. Fujii

R. Fujii

Research Organization of Information and Systems, Tokyo, Japan

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First published: 17 July 2023
Citations: 5

Abstract

A specialized ground-based system has been developed for simultaneous observations of pulsating aurora (PsA) and related magnetospheric phenomena with the Arase satellite. The instrument suite is composed of (a) six 100 Hz sampling high-speed all-sky imagers (ASIs), (b) two 10 Hz sampling monochromatic ASIs observing 427.8 and 844.6 nm auroral emissions, (c) a 20 Hz sampling fluxgate magnetometer. The 100 Hz ASIs were deployed in four stations in Scandinavia and two stations in Alaska, which have been used for capturing the main pulsations and quasi 3 Hz internal modulations of PsA at the same time. The 10 Hz sampling monochromatic ASIs have been operative in Tromsø, Norway with the 20 Hz sampling magnetometer. Combination of these multiple instruments with the European Incoherent SCATter (EISCAT) radar enables us to detect the low-altitude ionization due to energetic electron precipitation during PsA and further to reveal the ionospheric electrodynamics behind PsA. Since the launch of the Arase satellite, the data from these instruments have been examined in comparison with the wave and particle data from the satellite in the magnetosphere. In the future, the system can be utilized not only for studies of PsA but also for other classes of aurora in close collaboration with the planned EISCAT_3D project.

Key Points

  • An integrated package of instruments for high-time resolution measurements of pulsating aurora was deployed in Scandinavia and Alaska

  • The system has enabled us to capture the fine-scale spatio-temporal variations of pulsating aurora in a wide area

  • Data from those instruments have also been used for simultaneous observations of pulsating aurora with the Arase satellite

Data Availability Statement

The data from the Arase (ERG) satellite and ground-based instruments were obtained from the ERG Science Center operated by the Institute of Space and Astronautical Science of the Japan Aerospace eXploration Agency and the Institute for Space-Earth Environmental Research of Nagoya University (https://ergsc.isee.nagoya-u.ac.jp/index.shtml.en, Miyoshi, Hori, et al., 2018). The EMCCD all-sky camera data are accessible at the following DOIs, 100 Hz ASI at Tromsø station: https://doi.org/10.34515/DATA.GND-0059-0006-0201_v01, 100 Hz ASI Sodankylä: https://doi.org/10.34515/DATA.GND-0049-0006-0202_v01, 10 Hz monochromatic (844.6 nm) ASI Tromsø: https://doi.org/10.34515/DATA.GND-0059-0006-0203_v01, 100 Hz ASI at Tjautjas: https://doi.org/10.34515/DATA.GND-0062-0006-0204_v01, 10 Hz monochromatic (427.8 nm) ASI at Tromsø: https://doi.org/10.34515/DATA.GND-0059-0006-0205_v01, 100 Hz ASI at Kevo: https://doi.org/10.34515/DATA.GND-0022-0006-0206_v01, 100 Hz at Gakona station: https://doi.org/10.34515/DATA.GND-0013-0006-0207_v01, and 100 Hz ASI at Pokar Flat: https://doi.org/10.34515/DATA.GND-0040-0006-0208_v01.