Articles | Volume 22, issue 3
Nat. Hazards Earth Syst. Sci., 22, 849–868, 2022
https://doi.org/10.5194/nhess-22-849-2022
Nat. Hazards Earth Syst. Sci., 22, 849–868, 2022
https://doi.org/10.5194/nhess-22-849-2022

Research article 15 Mar 2022

Research article | 15 Mar 2022

Robust uncertainty quantification of the volume of tsunami ionospheric holes for the 2011 Tohoku-Oki earthquake: towards low-cost satellite-based tsunami warning systems

Ryuichi Kanai et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2021-119', Anonymous Referee #1, 06 Aug 2021
    • AC1: 'Reply on RC1', Ryuichi Kanai, 03 Sep 2021
  • RC2: 'Comment on nhess-2021-119', Anonymous Referee #2, 04 Jan 2022
    • AC2: 'Reply on RC2', Ryuichi Kanai, 28 Jan 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (30 Jan 2022) by Maria Ana Baptista
AR by Ryuichi Kanai on behalf of the Authors (08 Feb 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (08 Feb 2022) by Maria Ana Baptista
AR by Ryuichi Kanai on behalf of the Authors (15 Feb 2022)  Author's response    Manuscript
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Short summary
The air pressure created by a tsunami causes a depression in the electron density in the ionosphere. The depression is measured at sparsely distributed, moving GPS satellite locations. We provide an estimate of the volume of the depression. When applied to the 2011 Tohoku-Oki earthquake in Japan, our method can warn of a tsunami event within 15 min of the earthquake, even when using only 5 % of the data. Thus satellite-based warnings could be implemented across the world with our approach.
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