NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel[qa reld u vtemp vvel v CBUQ CBTMW CBVW CBTW CBQW CBTZW CBUW relv vpot psi CBMZW phi CBVQ rhum temp ]
grid: /X (degree_east) periodic (0) to (2.5W) by 2.5 N= 144 pts :grid
grid: /Y (degree_north) ordered (90N) to (90S) by 2.5 N= 73 pts :grid
grid: /P (mb) ordered [ (1000) (925) (850) (700) (600) (500) (400) (300)] :grid
grid: /T (days since 1960-01-01) ordered [ (Jan 1980) (Feb 1980) (Mar 1980) ... (Aug 2014)] N= 416 pts :grid
$partialdiff sub T$ [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel CBVQ ][ X Y | P T]

CPTv10+ files for $partialdiff sub T$ [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel CBVQ ]