parametres ==================
seisfile      =../output/test
modelfile     =
nt            =1000
dt (ms)       =.1
tord          =4
Model -----------------------
model_type    =1
vs0           =2887.
vp0           =5000.
rho0          =2500.
Source ----------------------
xxs           =500.
zzs           =500.
source_type   =3
srcfreq(Hz)   =100.
alpha         =10.
Receivers------------------------------
xa            =10
xe            =90
irec          =2
izrec         =0
isamp         =1
ssamp         =25
JUNK------------------------------
ibound        =3
icheck        =20
xmax          =1000.
zmax          =1000.
istretch      =1
gammax        =.999
gammaz        =.999
