Problems plotting Netcdf files in Panoply

Question

I can't create plot from .nc files using Panoply. The error message reads: "Axis contains NaN". Is there a workaround ?

Answer 1

Change the NaNs to normal "missing values", then use Panoply. The netCDF Operator (NCO) command ncatted works with NaNs. First set the missing value (i.e., the value of the _FillValue attribute) for the variable(s) in question to the IEEE NaN value:

ncatted -a _FillValue,,o,f,NaN in.nc

Then change the missing value from the IEEE NaN value to a normal IEEE number, like 1.0e36 (or to whatever the original missing value was). Now use Panoply. More at

http://nco.sf.net/nco.html#NaN