Extracting a 2D surface from a 3D field

[Gerard Eldin <Gerard.Eldin@xxxxxxx>]

Fellow Ferreters,

Here is a problem I can't solve with Ferret yet, I hope someone can:

I have a 3D (x,y,z) field of oceanic temperatures, temp. I want to select
values of temp on some surface, which is neither a constant depth nor an
isotherm: that surface is a  2D (x,y) array of depth values, independant
from temp. I simply can't find a way to do that.

Any hint will be welcome.

 



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