Gpsh

Usage: gpsh [OPTIONS] [FILE] Compute SH transfer function for layered models given through stdin or FILE.

Format for layered models:

 Line 1  : <number of layers including half-space for first model>
 Line 2  : <thickness (m)> <Vp (m/s)> <Vs (m/s)> <Density (kg/m3)> <Qp> <Qs>
 ....
 Line n  : 0 <Vp (m/s)> <Vs (m/s)> <Density (kg/m3)> <Qp> <Qs>
 Line n+1: <number of layers including half-space for second model>
 ....

Quality factors are mandatory. Any number of models can be given as input.

Gpsh options:

 -n <count>                Number of samples (default=100)
 -max <max>                Maximum of range for transfer function (default=20)
 -angle <angle>            Incidence angle (default=90, vertical incidence)

Generic options:

 -help <SECTION>           Show help about options. SECTION may be empty or:
                           all, examples, generic, gpsh
 -version                  Show version information
 -app-version              Show short version information
 -reportbug                Start bug report dialog, information about bug is
                           passed through stdin. This option is used
                           internally to report bugs if option -nobugreport is
                           not specified.
 -reportint                Start bug report dialog, information about
                           interruption is passed through stdin. This option
                           is used internally to report interruptions if
                           option -nobugreport is not specified.
 -nobugreport              Do not generate bug report in case of error

Examples:

        gpsh < test.model

 Calculate SH transfer function from 0.2 Hz to 20 Hz for model 'test.model'.

        gpsh < test.model | figue -c

 Calculate the same function and plot it.

        gpsh < test.model | figue -c -m sh.mkup

 Show the same function on a log-log plot. 'sh.mkup' is a tar.gz file
 containing an xml description of the graphic format, it can be generated from
 figue's interface.

Copyright:

 Copyright (c) 2002-2008 Marc Wathelet. All rights reserved.
 See http://www.geopsy.org for more information.