$partialdiff sub X$ detrended-bfl [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel CBTMW ]

grid: /T (57.2957795130823 degree_Kelvin meter radian-1 east second-1) ordered (-131.5 57.2957795130823 degree_Kelvin meter radian-1 east second-1) to (757.5 57.2957795130823 degree_Kelvin meter radian-1 east second-1) by 5.5895580E-06 N= 159046560 pts :gridforrtl: severe (174): SIGSEGV, segmentation fault occurred Stack trace terminated abnormally.