On 2/24/2014 3:25 AM, Ghansham Sangar wrote:
You can always write here to the list, or to the contact_ferret email, mentioned here, http://ferret.pmel.noaa.gov/Ferret/support, if you think there is a bug.
The curvilinear plotting commands are not designed to work when the location data is missing. I'll try to have a quick look at your dataset and see if I can see a way to make this work.
There is a syntax, IF-THEN masking,
Have a look at that and see if it's the kind of thing you want to do:
yes? let out_var = if count gt 10 then bt_lut
Or, do you want a regridding operation to put data from one variable onto the grid of another variable? If these don't answer your question, write back and show the grids of the variables, and explain more about what you want to do.
For some coordinate-axis units, Ferret is set up to do internal conversions, particularly units of time, longitude, latitude. This means that a time axis in units of seconds and a time axis in units of days can be handled together, with data regridded from one time axis to the other, or plotted on the same plot. A longitude axis with a range of -180:180 can be reconciled with another longitude axis in 0:360.
Ferret doesn't do anything of this sort with units of pressure. If hPa is listed as a unit on a coordinate axis or variable, Ferret will use that in the label, but it does not do any conversion between pressure and other units internally. That is what is meant if you use a dataset with units of hPa and you see
yes? use my_pressures.nc
*** NOTE: Units on axis "zaxis" are not recognized: hPa
*** NOTE: They will not be convertible: