Synopsis
		sffbrec2d < vinit.rsf > shots.rsf check1=check1.rsf check2=check2.rsf kt=100 amp=1. fm=10 dt= nt= ns= ng= jsx= jsz=0 jgx=1 jgz=0 sxbeg= szbeg= gxbeg= gzbeg= csdgather=n

Note: Clayton-Enquist absorbing boundary condition is applied!

Parameters
		float amp=1. maximum amplitude of ricker   file check1= auxiliary output file name   file check2= auxiliary output file name   bool csdgather=n [y/n] default, common shot-gather; if n, record at every point   float dt= time interval   float fm=10 dominant freq of ricker   int gxbeg= x-begining index of receivers, starting from 0   int gzbeg= z-begining index of receivers, starting from 0   int jgx=1 receiver x-axis jump interval   int jgz=0 receiver z-axis jump interval   int jsx= source x-axis jump interval   int jsz=0 source z-axis jump interval   int kt=100 check it at it=100   int ng= total receivers in each shot   int ns= total shots   int nt= total modeling time steps   int sxbeg= x-begining index of sources, starting from 0   int szbeg= z-begining index of sources, starting from 0

Used In
		XJTU          modeling2fwi/fbrec2d