1887

Abstract

Summary

We present a joint inversion approach that combines three independent single-station methods for the inversion of a 1D P- and S-wave crustal model for a specific location. We combine P-Receiver functions, the frequency dependent polarization of Rayleigh waves and the apparent P-wave incidence angle, resulting in an inversion process, which is less susceptible to problems related with non-uniqueness of the inversion compared to pure receiver function studies. We developed a stepwise approach of inversion that minimizes the weighted sum of the individual misfits (least squares method). First, we inverted teleseismic data using a gradient method with finite differences for the Moho depth and crustal velocities. We tested and validated the approach with synthetically computed data of a one-layer over a half-space model. In a second step we processed local and regional events to perform a grid search for the thickness and S-wave velocity of a sediment layer. We applied the presented method to three different stations in Europe (Moxa and GRA1 in Germany, and Suwalki in Poland). All our results are highly comparable to local studies at these stations. Combining the different methods our approach helps to constrain the crustal structure more precisely.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201413204
2015-06-01
2024-03-29
Loading full text...

Full text loading...

References

  1. Boore, D. M. and Toksöz, M. N.
    [1969] Rayleigh wave particle motion and crustal structure. Bulletin of the Seismological Society of America, 59(1), 331–346
    [Google Scholar]
  2. Kind; R., Kosarev, G.L. and PetersenN.V.
    [1995] Receiver functions at the stations of the German regional seismic network (GRSN). Geophysical Journal International, 121, 191–202
    [Google Scholar]
  3. Knapmeyer-Endrun, B., Krüger, F. and PASSEQ Working Group
    [2014] Moho depth across the trans-european suture zone from p- and s-receiver functions. Geophysical Journal International, 197, 1048–1075
    [Google Scholar]
  4. Svenningsen, L. and Jacobsen, B. H.
    [2007] Absolute S-velocity estimation from receiver functions. Geophysical Journal International, 170, 1089–1094
    [Google Scholar]
  5. Tanimoto, T. and Rivera, L.
    [2008] The ZH ratio method for long-period seismic data: sensitivity kernels and observational techniques. Geophysical Journal International, 172, 187–198
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201413204
Loading
/content/papers/10.3997/2214-4609.201413204
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error