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  • Recommended articles
  • February 27, 2024

[Frontier Letter] Simulation study of atmosphere–ionosphere variations driven by the eruption of Hunga Tonga-Hunga Ha’apai on 15 January 2022

The volcanic eruption of Hunga Tonga-Hunga Ha'apai on 15 January 2022 … Read more

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  • February 25, 2024

Highlighted Papers 2023

Highlighted papers are awarded every year based on the recommendations… Read more

  • News
  • February 25, 2024

Excellent Reviewers 2023

It is essential for an academic journal to have qualified reviewers to… Read more

  • Recommended articles
  • November 28, 2023

[Frontier Letter] New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tonga–Hunga Ha’apai volcano

An explosive eruption of the Hunga Tonga–Hunga Ha’apai (Tonga) volcano… Read more

  • Recommended articles
  • November 1, 2023

[Frontier Letter] Monitoring of equatorial plasma bubbles using aeronautical navigation system: a feasibility study

Equatorial Plasma Bubbles (EPBs) are regions of depleted plasma in the… Read more

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  • October 30, 2023

[Frontier Letter] A review of shallow slow earthquakes along the Nankai Trough

In the Nankai subduction zone, the shallow (≤ 10 km) slow earthquakes … Read more

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  • August 5, 2023

[Frontier Letter] Unified approach for evaluation of horizontal site amplification factors with special reference to history of studies on the effects of surface geology on seismic motion

Following the 1923 Kanto earthquake in Japan, Japanese researchers not… Read more

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