'Reference surface in the Cotton Valley model' 0 1 1 / (Cartesian coordinates, velocities, loss factors) -200 1100 -1000 1200 7000 10000 / (boundaries of the model) 1 surface 1 simple block: / 1 complex block: 1 / 'REFERENCE SURFACE' 1 1 -2 0 0 / (i.e. W(X1)-X2=0, tension=0) 2 (numbers of grid points) 59 1006 (X1 grid coordinates) 1108 734 (X2 coordinates at grid points) 'END OF SURFACES' / 'COMPLEX BLOCK' 1 'VP ' 1 (P wave velocity) 0 0 0 0 / (i.e. VP=W, tension=0) 18034. 'VS ' 1 (S wave velocity) 0 0 0 0 / (i.e. VS=W, tension=0) 10412. 'END OF COMPLEX BLOCKS, END OF THE INPUT DATA FOR THE MODEL' /