Evolution of the Atmospheric Pressure Signal from Tonga Volcano when Moving Away from It-Reference-Cited by-同舟云学术

Evolution of the Atmospheric Pressure Signal from Tonga Volcano when Moving Away from It

Published:2023-01-01 Issue:1 Volume:59 Page:3-18
ISSN:0002-3515
Container-title:Известия Российской академии наук. Физика атмосферы и океана
language:
Short-container-title:Izvestiâ Akademii nauk SSSR. Fizika atmosfery i okeana

Author:

Chunchuzov I. P.¹,Kulichkov S. N.¹,Popov O. E.¹,Perepelkin V. G.¹

Affiliation:

1. Obukhov Institute of the Atmospheric Physics RAS

Abstract

A model of atmospheric pressure signal propagation from the eruption of the Hunga–Tonga—Hunga–Haʻapai volcano (hereafter abbreviated as Tonga) is proposed. The model is used to explain some peculiarities in the changes in the wave form of the observed signal with increasing distance from the volcano. The model is based on the solution of the linearized Korteweg de Vries (KDV) equation, which describes the change in the wave form of the Lamb wave as a function of distance from the source. We compare the observed and model signals obtained as a superposition of the Lamb wave and the acoustic modes calculated for three infrasound stations (IS22, IS24, and IS30). The energy of the volcanic eruption is estimated from the pressure amplitude and characteristic duration of the signal recorded at one of the infrasound stations closest to the volcano (IS24).

Publisher

The Russian Academy of Sciences

Reference24 articles.

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