CPTv10+ files for min [ Y , min $integral dX$ $integral dY$ $partialdiff sub X$ ( WORLDBATH bath ) ]

WORLDBATH[bath ]
grid: /X (degree_east) periodic (0.04166667W) to (0.125W) by 0.08333333 N= 4320 pts :grid
min [ Y , min $integral dX$ $integral dY$ $partialdiff sub X$ ( WORLDBATH bath ) ][ | Y X]