Kawai, K., Shiokawa, K., Otsuka, Y., Oyama, S., Connors, M. G., Kasahara, Y., et al. (2023). Multi-event analysis of magnetosphere-ionosphere coupling of nighttime medium-scale traveling ionospheric disturbances from the ground and the Arase satellite. Journal of Geophysical Research: Space Physics, 128, e2022JA030542. https://doi.org/10.1029/2022JA030542
Multi-event analysis of magnetosphere-ionosphere coupling of nighttime medium-scale traveling ionospheric disturbances from the ground and the Arase satellite
|Author:||Kawai, K.1; Shiokawa, K.1; Otsuka, Y.1;|
1Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
2National Institute of Polar Research, Tachikawa, Japan
3University of Oulu, Oulu, Finland
4Athabasca University, Alberta, Athabasca, Canada
5Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan
6Tohoku University, Sendai, Japan
7Kyoto University, Kyoto, Japan
8Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
|Online Access:||PDF Full Text (PDF, 3 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe20230914125748
American Geophysical Union,
|Publish Date:|| 2023-09-14
Kawai et al. (2021) reported the first ground-satellite conjugate observation of nighttime medium-scale traveling ionospheric disturbances (MSTIDs), by analyzing measurements from an airglow imager at Gakona (geographic latitude: 62.39°N, geographic longitude: 214.78°E, magnetic latitude: 63.60°N) and the Arase satellite in the magnetosphere on 3 November 2018. The Arase satellite observed variations in both the polarization electric field and the electron density as the Arase footprint passed through the MSTID structures in the ionosphere. In this study, we investigated whether these electric field and density variations associated with MSTIDs at subauroral latitudes are always observed by Arase in the magnetosphere. We used three airglow imagers installed at Gakona, Athabasca (geographic latitude: 54.60°N, geographic longitude: 246.36°E, magnetic latitude: 61.10°N), and Kapuskasing (geographic latitude: 49.39°N, geographic longitude: 277.81°E, magnetic latitude: 58.70°N) and the Arase satellite. We found eight observations of MSTIDs conjugate with Arase. They indicate that electric field and density variations associated with MSTIDs are not always observed in the magnetosphere. These variations tend to be observed in the magnetosphere during geomagnetically quiet times and when the amplitude of the MSTID is large. We categorized the MSTIDs into those caused by plasma instabilities and gravity waves and found that the electric field and density variations can be observed in the magnetosphere for both types of MSTIDs.
Journal of geophysical research. Space physics
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
115 Astronomy and space science
This work was supported by 15H05815 (Y. Miyoshi), 16H06286 (K. Shiokawa and Y. Miyoshi), 20H01959 (Y. Miyoshi), 15H05747 (S. Oyama and Y. Miyoshi), 21H04518 (K. Shiokawa), JPJSBP120214805 (K. Shiokawa), and JPJSCCB20210003 (K. Shiokawa) of Japan Society for the Promotion of Science. The observatory housing the Athabasca instrument was constructed and is operated with funding from the Canada Foundation for Innovation and we thank Ian Schofield for assistance.
© 2023. American Geophysical Union. All Rights Reserved. This is the peer reviewed version of the following article: Kawai, K., Shiokawa, K., Otsuka, Y., Oyama, S., Connors, M. G., Kasahara, Y., et al. (2023). Multi-event analysis of magnetosphere-ionosphere coupling of nighttime medium-scale traveling ionospheric disturbances from the ground and the Arase satellite. Journal of Geophysical Research: Space Physics, 128, e2022JA030542, which has been published in final form at https://doi.org/10.1029/2022JA030542. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.