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

grid: /T (percent) ordered (-131.5 percent) to (757.5 percent) by 1.1959727E-05 N= 74332800 pts :gridforrtl: severe (174): SIGSEGV, segmentation fault occurred Stack trace terminated abnormally.