$partialdiff sub X$ $integral dY$ $partialdiff sub Y$ $partialdiff sub X$ detrended-bfl [ WORLDBATH432 bath ]
| Longitude | grid: /X (degree_east) periodic [ (0.4166667E) (0.4166667E) (0.8333333E) ... (1.666656W)] N= 432 pts :grid |
|---|---|
| Latitude | grid: /Y (degree_north) ordered (90N) to (90S) by 0.8333333 N= 217 pts :grid |