Program sfmodatten1 | 1D attenuation modeling according to modified Kolsky model. 
[SYNOPSIS]
sfmodatten1 > out.rsf at= q= n1=1000 d1=0.001 o1=0. nc=1 fm=40 mag=1.
[PARAMETERS]
ints    | at | = |   | 	(at=[at1,at2,...] layer quality factor)  [nc]
float   | d1 | =0.001 |   | 	sampling on time axis 
int     | fm | =40 |   | 	dominant frequency of Ricker wavelet 
float   | mag | =1. |   | 	min-phase 
int     | n1 | =1000 |   | 	size of time axis 
int     | nc | =1 |   | 	number of layer 
float   | o1 | =0. |   | 	origin on time axis 
floats  | q | = |   | 	(q=[q1,q2,...] layer quality factor)  [nc]
[DIRECTORY]
user/yliu
