layer #  start vp  delta vp   # delta   start h   delta h   # delta
         1      4.55       0.1         5       0.0       1.0         1
         2       6.3       0.1         5       4.0       1.0         1
         3       6.8       0.1         5      22.5       1.0         1
         4      7.90      0.05         3      32.5       1.0         1       
         4      8.05      0.05         4      40.0       1.0         1