$partialdiff sub Y$ [ NOAA NCEP EMC CMB GLOBAL Reyn_SmithOIv2 monthly sea_ice ]
| Longitude | grid: /X (degree_east) periodic (0.5E) to (0.5W) by 1.0 N= 360 pts :grid |
|---|---|
| Latitude | grid: /Y (degree_north) ordered (89N) to (89S) by 1.0 N= 179 pts :grid |
| Time | grid: /T (months since 1960-01-01) ordered (Nov 1981) to (Dec 2010) by 1.0 N= 350 pts :grid |
