Shallow water. 
N J 1 
50 100 2 0.005
3
0 0 0 0 0 0 0
0 1500 -1480 0 0 1 0
100 1800 400 0.1 0.5  1.8 0

          10

   10.000000     0 0 1 0
   20.000000     0 0 1 0
   30.000000     0 0 1 0
   40.000000     0 0 1 0
   50.000000     0 0 1 0
   60.00000     0 0 1 0
   70.00000     0 0 1 0
   80.00000     0 0 1 0
   90.00000     0 0 1 0
  100.00000     0 0 1 0



50 0 0 0 

1400 1e8
200 800 100