## Constructing model P1I for reflection studies

**Petr Bulant** & **Nick Martakis**
### Summary

The algorithm of constructing smooth velocity models suitable for ray tracing
by inversion of given data with minimization of the Sobolev norm
composed of the second derivatives of velocity
is applied to the 2-D P and S-wave velocity model called P1I.
The P and S-wave velocity data available for the model construction
are quite smooth, and thus construction of a smooth one-block model called P1
is possible.
Because the model is constructed for reflection studies,
and the data for smooth
interfaces are available, we construct the model P1I composed of several
smooth velocity blocks separated by smooth interfaces. We then calculate
synthetic seismograms in the constructed model, which simulate
a reflection measurement in the modelled locality.

### Whole paper

The paper is available in
PDF (5280 kB).

In: Seismic Waves in Complex 3-D Structures, Report 21,
pp. 17-25, Dep. Geophys., Charles Univ., Prague, 2011.