Nearest Neighbor

[Walsh, Brian J]

Hello,
 
I'm trying to extract data from a NAM model grid, but I am getting
values between 0 and 1 for the categorical rain, snow, freezing rain and
ice pellets.  This appears to be an issue with interpolation and I need
it to get data from the nearest neighbor point.  The question is, how do
I do this?  I tried adding an argument to the grib2ctl.pl script, but
this didn't work.  Any ideas would be helpful.
 
Thanks,
 
Brian


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