You'll need to give Ferret more information about how the lon/lat grid should map onto the grid that has simple indices x=1:130 and y=1:114. Does the grid of the Oxygen data represent a global dataset as well?
If the Oxygen grid should in fact be a global grid, then you can redefine the coordinate axes so that they describe a lon/lat map. For example (Here you will need to determine what the start and end coordinates should be! This is just a made-up example to show how it looks):
yes? define axis/x=-178:178/npoints=130/units=degrees_east imtYou'll get messages from Ferret warning you that redefining axes in a dataset will alter the way Ferret treats the contents. Then the regridding operation would do more what you expect. Again, though, Ferret itself does not have enough information to determine how to do the regridding automatically and so you are intervening to make the definitions.
I notice that the Z axis has the same issues; in the first datset it looks as if it's in meters, in the Oxygen dataset it's simply z=1:21. You could redefine that axis as well. If it's a depth axis use define axis/DEPTH so it will be increasing downwards.
Note that for any of these definitions you can also define irregularly-spaced axes by giving a list of values instead of start:stop:delta.
On 12/5/2015 9:49 PM, Pearse Buchanan wrote: