Haro Strait simulation 1 
R O  B
1000 0                         src freq
4                              nb of layers
  0    0  0 0    0     0   0   #1 : upper half space (vacuum)
  0 1500  0 0 -888.888 1.0 0   #2
+15.0
 45 1500  0 0    0     1.0 0
225 1800  0 0.15 0     1.8 0   
55                             src depth
1 260 50                   rcv depths
1300 1e8                       cmin cmax
-1 1 1 0                  k integration parameters
4096 900.0 1100.0 0.00025 2 .1 1    time, freq & range param.