In short, if the units of the coordinates are in recognized time or location units, which are called "world units" in the documentation, then Ferret will handle units conversion internally, and you do not need to do your own conversion.
The details are discussed in the documentation about
and in the DEFINE AXIS/UNITS= documentation. There is further
useful information in the rest of the section about
If the units are not recognized, either from the metadata in a
netCDF dataset, or on a DEFINE AXIS command, Ferret will issue a
note to indicate that.
*** NOTE: (fyi) units are not subject to
On 11/17/2016 8:39 PM, Krishnapriya M wrote: