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$integral dX$ $integral dY$ $partialdiff sub X$ [ WORLDBATH432 bath ]

Longitude grid: /X (degree_east) ordered [ (0.4166667E) (0.4166667E) (1.25E) ... (0.416687E)] N= 433 pts :grid
Latitude grid: /Y (degree_north) ordered (90.41666N) to (90.41666S) by 0.8333333 N= 218 pts :grid

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