$partialdiff sub Y$ $partialdiff sub X$ detrended-bfl [ WORLDBATH432 bath ]
| Longitude | grid: /X (degree_east) periodic [ (0.625E) (1.25E) (2.083333E) ... (0)] N= 432 pts :grid |
|---|---|
| Latitude | grid: /Y (degree_north) ordered (89.16667N) to (89.16667S) by 0.8333334 N= 215 pts :grid |