parametres ==================
seisfile      =..\output\test
modelfile     =
nt            =100
dt (ms)       =.5
tord          =2
Model -----------------------
model_type    =1
vs0           =2887.
vp0           =5000.
rho0          =2500.
Source ----------------------
xxs           =900.
zzs           =900.
source_type   =4
srcfreq(Hz)   =50.
alpha         =25.
Receivers------------------------------
xa            =14
xe            =65
irec          =1
izrec         =0
isamp         =1
ssamp         =10
JUNK------------------------------
ibound        =4
icheck        =5
xmax          =1000.
zmax          =1000.
istretch      =1
gammax        =.999
gammaz        =.999
