Simulation of Acoustic-Gravity Waves Generated by an Earthquake and Explanation of the Ionospheric Disturbance Observed During 2023 M 7.7 Turkey Earthquake
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F25%3A00637121" target="_blank" >RIV/68378289:_____/25:00637121 - isvavai.cz</a>
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025JA033711" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025JA033711</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2025JA033711" target="_blank" >10.1029/2025JA033711</a>
Alternative languages
Result language
angličtina
Original language name
Simulation of Acoustic-Gravity Waves Generated by an Earthquake and Explanation of the Ionospheric Disturbance Observed During 2023 M 7.7 Turkey Earthquake
Original language description
We present a semi-analytic method that allows efficiently simulating acoustic-gravity waves (AGWs) excited by an earthquake source in a stratified lithosphere-atmosphere model. First, we introduce the surface harmonic vectors to transform the atmospheric governing equations and the elastodynamic equations from the frequency-space to frequency-wavenumber domain. Next, we compute the wavefields in the frequency-wavenumber domain using a global matrix method incorporating boundary conditions and the source contribution. Finally, we obtain the time-space responses through the wavenumber integration and fast Fourier transform. We use this method to investigate the characteristics of AGWs generated by an earthquake source. The results reveal two main types of AGWs: the epicenter AGW generated by seismic waves near the epicenter and the head AGWs generated by the seismic waves that travel along the free surface. The epicenter AGW shows lower frequency compared with the head waves. AGWs caused by earthquakes with different focal mechanisms exhibit different energy distributions. Particularly, both the epicenter and head AGWs caused by a vertical strike fault are weak along the strike direction. The epicenter AGW is very sensitive to the source depth comparing to the head AGW. We also find that the Earth structure has little effect on the epicenter AGW but a significant effect on the head AGWs. We use our method to simulate the ionospheric disturbance observed from the Doppler frequency shift data following the 2023 Turkey M 7.7 earthquake. The good agreement suggests that our method provides a good understanding of the lithospheric and atmospheric coupling.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Geophysical Research-Space Physics
ISSN
2169-9380
e-ISSN
2169-9402
Volume of the periodical
130
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
31
Pages from-to
e2025JA033711
UT code for WoS article
001520431500001
EID of the result in the Scopus database
2-s2.0-105009812025