HFGI

Modelling high-frequency (>0.5 Hz) guided infrasound propagation in the atmosphere and the corresponding seismic recording. This guided infrasound refers to sound waves trapped near the ground surface during propagation. These waves also deform the ground surface, thus being recorded by seismometers. This deformation can be computed using compliance.

We have applied our modelling algorithm to field exampls on both Mars and Earth to compare the synthetics to the seismic recordings. More details about this modelling and the application details can be found in our papers.

References:

Xu, Z., Froment, M., Garcia, R.F., Beucler, É., Onodera, K., Kawamura, T., Lognonné, P. and Banerdt, W.B. (2022). Modelling seismic recordings of high‐frequency guided infrasound on Mars. Journal of Geophysical Research: Planets, 127(11), e2022JE007483.

Xu, Z., and Lognonné, P. (2024). A comprehensive theory for 1-D (an) elastic medium deformation due to plane-wave fluid pressure perturbation. Geophysical Journal International, 236(3), 1499-1512.