[ncl-talk] Station obs overlay on map

[Dave Allured - NOAA Affiliate]

Debasish, please check your subscripting.  Immediately before the line that
gets the error, add printVarSummary for lat_new, obs_lat, and "indexes".
Also include:

    printMinMax (indexes, 0)
    print ("num missing = " + num (ismissing (indexes)))
    print (i)
    print (npts_range)

Show us all of this output immediately preceding the error, including the
error message itself.  Do not show repeated outputs, only the last set of
debug print messages before the error occurs.


On Mon, Jul 20, 2026 at 8:05 AM Debasish Hazra via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Thanks Karin for your reply. The file is big to attach, here is the link
> of actual file :
> https://nomads.ncep.noaa.gov/pub/data/nccf/com/gens/prod/gefs.20260718/00/chem/pgrb2ap25/
> I am getting error in this line : lat_new(i,0:npts_range-1) =
> obs_lat(indexes)
> error says : fatal:Subscript out of range, error in subscript #0
> fatal:["Execute.c":8637]:Execute: Error occurred at or near line 68 in
> file Test_read.ncl
>
> On Mon, Jul 20, 2026 at 3:17 AM Karin Meier-Fleischer <
> meier-fleischer at dkrz.de> wrote:
>
>> Hi Debasish,
>>
>> the file gefs.chem.t00z.a2d_0p25.f018.grib2 is missing.
>>
>> Can you provide more Information about the error.
>>
>> Regards, Karin
>>
>> Am 18.07.26 um 04:26 schrieb Debasish Hazra via ncl-talk:
>> > Hi,
>> > I am trying to do a plot with station data in netcdf overlay on model
>> > output following this example here
>> > :https://www.ncl.ucar.edu/Applications/Scripts/polyg_8.ncl
>> > But getting subscript range error. Attached is the ncl code and netcdf
>> > station data used for this. Any help on this is greatly appreciated.
>> >
>> > Thanks
>> > Debasish
>
>
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