SYNOPSIS
PERL PROGRAM NAME:
AUTHOR: Juan Lorenzo (Perl module only)
DATE:
DESCRIPTION:
Version:
USE
NOTES
Examples
SYNOPSIS
SEISMIC UNIX NOTES SUTIVEL - SU Transversely Isotropic velocity table builder
computes vnmo or vphase as a function of Thomsen's parameters and
theta and optionally interpolate to constant increments in slowness
Optional Parameters:
a=2500. alpha (vertical p velocity)
b=1250. beta (vertical sv velocity)
e=.20 epsilon (horiz p-wave anisotropy)
d=.10 delta (strange parameter)
maxangle=90.0 max angle in degrees
nangle=9001 number of angles to compute
verbose=0 set to 1 to see full listing
np=8001 number of slowness values to output
option=1 1=output vnmo(p) (result used for TI DMO)
option=2:output vnmo(theta) in degrees
option=3:output vnmo(theta) in radians
option=4:output vphase(p)
option=5:output vphase(theta) in degrees
option=6:output vphase(theta) in radians
option=7:output first derivative vphase(p)
option=8:output first derivative vphase(theta) in degrees
option=9:output first derivative vphase(theta) in radians
option=10:output second derivative vphase(p)
option=11:output second derivative vphase(theta) in degrees
option=12:output second derivative vphase(theta) in radians
option=13:( 1/vnmo(0)^2 -1/vnmo(theta)^2 )/p^2 test vs theta
(result should be zero for all theta for d=e)
option=14:return vnmo(p) for weak anisotropy
normalize=0 =1 means scale vnmo by cosine and scale vphase by
1/sqrt(1+2*e*sin(theta)*sin(theta)
(only useful for vphase when d=e for constant
result)
=0 means output vnmo or vphase unnormalized
Output on standard output is ascii text with:
line 1: number of values
line 2: abscissa increment (p or theta increment, always starts at zero)
line 3-n: one value per line
Author: (visitor to CSM form Mobil) John E. Anderson, Spring 1994User's notes (Juan Lorenzo) untested
CHANGES and their DATES
Import packages
instantiation of packages
Encapsulated hash of private variables
sub Step
collects switches and assembles bash instructions by adding the program name
sub note
collects switches and assembles bash instructions by adding the program name
sub clear
sub a
sub b
sub d
sub e
sub maxangle
sub nangle
sub normalize
sub np
sub option
sub verbose
sub get_max_index
max index = number of input variables -1