$partialdiff sub P$ $integral dX$ [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel v ]

grid: /T (0.000174532925199433 kilogram-1 meter2 radian east second) ordered (-131.5 0.000174532925199433 kilogram-1 meter2 radian east second) to (757.5 0.000174532925199433 kilogram-1 meter2 radian east second) by 5.8979476E-06 N= 150730400 pts :gridforrtl: severe (174): SIGSEGV, segmentation fault occurred Stack trace terminated abnormally.