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

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

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021449 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021449_1
Genre: Conference Paper

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 Creators:
Lognonné, Philippe1, Author
Zongbo, Xu1, Author
Elvira, Astafyeva1, Author
Marouchka, Froment1, Author
Raphael, Garcia1, Author
Taichi, Kawamura1, Author
Attila, Komjathy1, Author
Siddharth, Krishnamoorthy1, Author
Ralph, Lorenz1, Author
David, Mimoun1, Author
Naomie, Murdoch1, Author
Keisuke, Onodera1, Author
Mark, Panning1, Author
Lucie, Rolland1, Author
Iris, van Zelst1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-3089
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -