$partialdiff sub X$ $partialdiff sub X$ $partialdiff sub Y$ detrended-bfl [ WORLDBATH bath ]
| Longitude | grid: /X (degree_east) periodic [ (0.08333334W) (0) (0.08333334E) ... (0.1666565W)] N= 4320 pts :grid |
|---|---|
| Latitude | grid: /Y (degree_north) ordered (89.87501N) to (89.87501S) by 0.08333334 N= 2158 pts :grid |