Prior Probability

Model parameter	Distribution type	Tuning parameter
# of layer interfaces	Truncated uniform	$k_{min}$ , $k_{max}$
Interface depth	Truncated uniform
S wave velocity perturbation	Gaussian
P wave velocity perturbation	Gaussian

Truncated uniform distributions are adopted for all model parameters:

Prior probability .

RF_INV: A Fortran Program for Trans-Dimensional Inversion of Receiver Functions