[ncl-talk] NCL contour plot with CMAQ output

[Dennis Shea]

The response was inadvertently not sent to ncl-talk

====

We were looking for netCDF files. Also, a sample script of what you were doing.
We are too busy to be guessing.
====
I have no idea what a 'mave' file refers to.

I can see ....

      float LAT ( TSTEP, LAY, ROW, COL )
         long_name :    LAT
         units :        DEGREES
         var_desc :     latitude (south negative)

      float LON ( TSTEP, LAY, ROW, COL )
         long_name :    LON
         units :        DEGREES
         var_desc :     longitude (west negative)

I *SPECULATE* you can use
     LAT2D  = f->LAT(0,0,:,:)
     LON2D = f->LON(0,0,:,:)

     x = f->X
     x at lat2d = LAT2D
     x at lon2d = LON2D

for plotting.

On Thu, Oct 15, 2015 at 12:54 PM, Dennis Shea <shea at ucar.edu> wrote:
> I think it is best to make the datas downloadable
>
> or place them on our ftp site.
>
> ftp ftp.cgd.ucar.edu
> anonymous
> email
> cd incoming
> put CMAQ_file.nc
> put GRIDCRO2D.nc
> put clean_simple_script_illustrating_the_issue.ncl
> quit
>
> Then, after successful transfer of all the files, send ncl-talk an email
> stating the exact names of the files.
>
>
>
>
>
> On Thu, Oct 15, 2015 at 11:47 AM, Jiaoyan Huang <huangj1311 at gmail.com> wrote:
>> Hey,
>>
>> I am using CMAQ output (for concentration array) and GRIDCRO2D (for lat and
>> lon). I ran into the problem of
>> check_for_y_lat_coord: Warning: Data either does not contain a valid
>> latitude coordinate array or doesn't contain one at all.  A valid latitude
>> coordinate array should have a 'units' attribute equal to one of the
>> following values: 'degrees_north' 'degrees-north' 'degree_north' 'degrees
>> north' 'degrees_N' 'Degrees_north' 'degree_N' 'degreeN' 'degreesN' 'deg
>> north'
>>
>> I followed the ncl FAQ, but cannot fix it. I am thinking it is due to the
>> data format for CMAQ output. Can anyone help with this?
>>
>> Thank you
>>
>> --
>> _________________________________________________________________
>> Jiaoyan Huang
>> Atmospheric Research Staff IE UNC Chapel Hill
>> jiaoyanh at email.unc.edu
>> 100 Europa Drive, Suite 490
>> Chapel Hill, NC 27517
>>
>>
>>
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