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Comparing Earth, Mars, Venus and Titan in terms of seismic solid/atmosphere coupling and subsurface/atmosphere elastic compliance

Urheber*innen

Lognonné,  Philippe
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Zongbo,  Xu
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Elvira,  Astafyeva
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Marouchka,  Froment
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Raphael,  Garcia
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Taichi,  Kawamura
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Attila,  Komjathy
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Siddharth,  Krishnamoorthy
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Ralph,  Lorenz
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

David,  Mimoun
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Naomie,  Murdoch
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Keisuke,  Onodera
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Mark,  Panning
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Lucie,  Rolland
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Iris,  van Zelst
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Lognonné, P., Zongbo, X., Elvira, A., Marouchka, F., Raphael, G., Taichi, K., Attila, K., Siddharth, K., Ralph, L., David, M., Naomie, M., Keisuke, O., Mark, P., Lucie, R., Iris, v. Z. (2023): Comparing Earth, Mars, Venus and Titan in terms of seismic solid/atmosphere coupling and subsurface/atmosphere elastic compliance, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3089


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021449
Zusammenfassung
On the Earth, with more than a century of seismology and on Mars, with the recent InSight seismic data, seismic signals generated through the coupling of the atmosphere with interior have been detected after atmospheric explosions, either due to coupling near the source or near the seismometer. Subsurface structure inversion have also been made on Mars and on the Earth from the joint recording by seismometer and pressure sensor of subsurface elastic deformation generated by atmospheric vortexes and the subsequent inversion of compliance. On the opposite, gravito-acoustic signals in the Earth atmosphere have been also detected after earthquakes and tsunamis. While no such signal has been observed on Mars, their detection seems realistic on Venus, either with infrasound sensors in the atmosphere or with ionospheric sensors in orbit.We present here a short comparative review of observations on Earth and Mars, with focus on coupling near the source due to atmospheric or surface explosion, on the detection at the station of atmospheric signal through compliance and on the subsurface inversion of compliance from atmospheric sources. We then extrapolate to Titan, for which we present synthetics illustrating how seismometer, such as those of the DragonFly mission, could also be used for detecting atmospheric infrasounds through compliance effect.We finally compare Earth and Mars in terms of seismic atmospheric-interior coupling with two other terrestrial bodies of the solar system, Venus and Titan, here again, we illustrate with synthetics the strength of atmospheric signals generated by quakes and discuss perspectives, in terms of observation strategy.