Accessing data using CPT (ingrid imposes a limit of 3999 points in the degrees-east grid)

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mean root mean sq anom [ NOAA NCEP-NCAR CDAS-1 MONTHLY Intrinsic PressureLevel CBUW ]

Latitude grid: /Y (degree_north) ordered (90N) to (90S) by 2.5 N= 73 pts :grid

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CPTv10+