31.2499981 | 259.6905012 291.4923132 31.7382793 | 258.6609733 286.9434926 32.2265605 | 257.4416940 282.8358906 32.7148417 | 255.9845241 279.2012189 33.2031230 | 254.2462253 276.0619743
We edit the pvlcty= line of disper.d to use the phase velocity. For the fundamental mode, the replacement is:
< pvlcty=0.0, pfreq=0.0, zend=100.0, --- > pvlcty=257.4416940, pfreq=32.2265605, zend=10.0,
We also change zend, choosing a more relevant depth of interest which depends on the frequency. Low frequencies extend deeper than high frequencies. We also change the computational depth interval, deltz. The replacement is:
< deltz= 1.0000, --- > deltz= .0010,We change the computational increment from 1 meter to .001 meters. Review the relevant lines of the disper.d file shown above in section 9.2.5 for example. Running disper with the edited disper.d file will replace disper.tmp with a new version listing the motion-stress vector computed at the new deltz interval. Figure 51 is the result.
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