'Simple artificial model created during the 1998 SW3D meeting' / 0 1 1 -3 / (Cartesian coordinates, velocities, loss factors) 0 5 0 5 0 4 (boundaries of the model) 3 SURFACES 4 SIMPLE BLOCKS: 1 / (water) -1 2 3 / (middle layer) -2 / (spherical inclusion) -3 / (bottom layer) 4 COMPLEX BLOCKS: 1 / (water) 2 / (middle layer) 3 / (spherical inclusion) 4 / (bottom layer) 'SURFACE' 1 (curved 2-D interface) 1 -3 0 0 / (i.e. W(X1)-X3=0, tension=0) 6 (numbers of grid points) 0 1 2 3 4 5 (X1 grid coordinates) 1.0 1.5 1.0 0.5 0.7 1.0 (X3 coordinates at grid points) 'SURFACE' 2 (spherical interface) 1 2 3 0 / (i.e. W(X1,X2,X3)=0, tension=0) 5 5 5 (numbers of grid points) 0.0 2.0 3.0 4.0 6.0 (X1 grid coordinates) -0.5 1.5 2.5 3.5 5.5 (X2 grid coordinates) -1.5 0.5 1.5 2.5 4.5 (X3 grid coordinates) 39.5 27.5 26.0 27.5 39.5 27.5 15.5 14.0 15.5 27.5 26.0 14.0 12.5 14.0 26.0 27.5 15.5 14.0 15.5 27.5 39.5 27.5 26.0 27.5 39.5 27.5 15.5 14.0 15.5 27.5 17.5 3.5 2.0 3.5 17.5 14.0 2.0 0.5 2.0 14.0 15.5 3.5 2.0 3.5 15.5 27.5 15.5 14.0 15.5 27.5 26.0 14.0 12.5 14.0 26.0 14.0 2.0 0.5 2.0 14.0 12.5 0.5 -1.0 0.5 12.5 14.0 2.0 0.5 2.0 14.0 26.0 14.0 12.5 14.0 26.0 27.5 15.5 14.0 15.5 27.5 17.5 3.5 2.0 3.5 17.5 14.0 2.0 0.5 2.0 14.0 15.5 3.5 2.0 3.5 15.5 27.5 15.5 14.0 15.5 27.5 39.5 27.5 26.0 27.5 39.5 27.5 15.5 14.0 15.5 27.5 26.0 14.0 12.5 14.0 26.0 27.5 15.5 14.0 15.5 27.5 39.5 27.5 26.0 27.5 39.5 'SURFACE' 3 (dipping interface) 1 2 -3 0 / (i.e. W(X1,X2)-X3=0, tension=0) 2 2 (numbers of grid points) 0 5 (X1 grid coordinates) 0 5 (X2 grid coordinates) 3.0 4.0 2.0 3.0 (X3 coordinates at grid points) 'END OF SURFACES' / 'COMPLEX BLOCK' 1 (water) 'VP ' 1 (P wave velocity) / (i.e. VP=W, tension=0) 1.5 'VS ' 1 (S wave velocity) / (i.e. VS=W, tension=0) 0.0 'COMPLEX BLOCK' 2 (middle layer) 'VP ' 1 (P wave velocity) 1 2 3 0 1 / (i.e. VP=W(X1,X2,X3), tension=0) 2 2 2 (numbers of grid points) 0 5 (X1 grid coordinates) 0 5 (X2 grid coordinates) 0 4 (X3 grid coordinates) 2.5 2.6 2.6 2.5 3.7 3.6 3.6 3.6 (velocities at grid points) 'VS ' 1 (S wave velocity) 4 0 0 / (i.e. VS=W(X4) with X4=VP, tension=0) 2 (numbers of grid points) 0 10 (VP grid coordinates) 0 6 (VS at the gridpoints) 'COMPLEX BLOCK' 3 (spherical inclusion) 'VP ' 1 (P wave velocity) 1 2 3 0 1 / (i.e. VP=W(X1,X2,X3), tension=0) 2 2 2 (numbers of grid points) 2.0 4.0 (X1 grid coordinates) 1.5 3.5 (X2 grid coordinates) 0.5 2.5 (X3 grid coordinates) 5.5 5.6 5.6 5.5 5.7 5.6 5.6 5.6 (velocities at grid points) 'VS ' 1 (S wave velocity) 4 0 0 / (i.e. VS=W(X4) with X4=VP, tension=0) 2 (numbers of grid points) 0 10 (VP grid coordinates) 0 6 (VS at the gridpoints) 'COMPLEX BLOCK' 4 (bottom layer) 'VP ' 1 (P wave velocity) 1 2 3 0 1 / (i.e. VP=W(X1,X2,X3), tension=0) 2 2 2 (numbers of grid points) 0 5 (X1 grid coordinates) 0 5 (X2 grid coordinates) 0 4 (X3 grid coordinates) 3.5 3.6 3.6 3.5 4.7 4.6 4.6 4.6 (velocities at grid points) 'VS ' 1 (S wave velocity) 4 0 0 / (i.e. VS=W(X4) with X4=VP, tension=0) 2 (numbers of grid points) 0 10 (VP grid coordinates) 0 6 (VS at the gridpoints) 'END OF COMPLEX BLOCKS, END OF THE INPUT DATA FOR THE MODEL' /