1                      # Version of tecconv program
   DP                  # Field used to determine layer interfaces
2 F T F                # 2-D, sphere, rotate, index velocities                       
 1  40  35 35       108 108 1 280  1 280 136 136    1 280 153 153 
1 1   XX XX   X        # extracted layers for 3-d fields (not used for 2-d)
   DP  1  6   T
  TEM  1  6   T
  SAL  1  6   T
 TH3D  1  6   F
   UT  1  6   T
   VT  1  6   T
  MKE  1  6   F
  EKE  1  6   F