$integral dP$ [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel vtemp ]

grid: /T (100 (degree_Kelvin above 0) kilogram meter-1 second-2) ordered (-131.5 100 (degree_Kelvin above 0) kilogram meter-1 second-2) to (757.5 100 (degree_Kelvin above 0) kilogram meter-1 second-2) by 1.0558055E-05 N= 84201120 pts :gridforrtl: severe (174): SIGSEGV, segmentation fault occurred Stack trace terminated abnormally.