[ncl-talk] Plot precipitation data without lat/lon coordinates

[Andrew Kren - NOAA Affiliate]

Dear ncl-talk,

I am trying to plot precipitation data of radar and station data from the
NWS. It is in netcdf form. When I read in the data, the array of
precipitation is two dimensional as expected in (lat,lon). However, there
are no lat/lon coordinate arrays in the netcdf file. It only gives me the 4
corners of the lon / lat grid. I am sending the filedump of the netcdf file
so you can see the format.

Is there a way in ncl to plot the data on a map without the given
coordinate arrays?

Thanks,

-- 
Andrew Kren, PhD
Research Scientist I, Global Observing Systems Analysis (GOSA) Group
NOAA ESRL Global Systems Division (Rm 3C515)
325 Broadway, Boulder, CO 80305
(303) 497-5418
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 NCAR Command Language Version 6.3.0
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Variable: f
Type: file
filename:	nws_precip_ak_20160221
path:	../ENRR_obs_precip/nws_precip_ak_20160221.nc
   file global attributes:
   dimensions:
      ncl_scalar = 1
      hrapy = 530
      hrapx = 460
      latlong = 4
      dates = 11
   variables:
      integer amountofprecip ( hrapy, hrapx )
         long_name :	24-Hour Rainfall
         units :	1/100 mm
         grid :	hrap_grid=polar stereograph projection
         resolution :	4km*4km
         dateofdata :	2016022112Z
         dateofcreation :	2016022421Z
         location :	Alaska                   
         author :	national weather service aprfc converted by abrfc       
         comments :	preliminary data...subject to change

      float lat ( latlong )
         order :	bottom_left,bottom_right,top_right,top_left

      float lon ( latlong )
         order :	bottom_left,bottom_right,top_right,top_left

      float true_lat ( ncl_scalar )

      float true_lon ( ncl_scalar )

      character timeofdata ( dates )

      character timeofcreation ( dates )

      float hrap_xor ( ncl_scalar )
         comments :	offset in x direction of hrap grid

      float hrap_yor ( ncl_scalar )
         comments :	offset in x direction of hrap grid