[gradsusr] Problem reading sub-hourly WRF grib files (NCEP code table for 15/30 min records)

[Jeff Duda]

What result do you get when you do

wgrib2 -T (grib file)

?

Look after the "D=", as the represents the time in the GRIB2 file.

Jeff

On Tue, Nov 7, 2017 at 12:10 PM, Ivan Toman <ivtoman at inet.hr> wrote:

> Hello,
>
> Yes it is fixed. I'm currently need to output 10 min intervals. So, for
> full hour, 10m, 20m, 40m and 50m I get OK data. But for 30m I do not.
>
> Thank you!
> Ivan
>
>
>
>
> On 11/07/2017 05:50 PM, Jeff Duda wrote:
>
> What is your time interval? If it's not fixed, that's one problem. If it
> is fixed, then I don't see why regular templating wouldn't work unless the
> time being written to the grib2 file is not right. But there are ways to
> fix that.
>
> Jeff Duda
>
> On Tue, Nov 7, 2017 at 10:12 AM, Ivan Toman <ivtoman at inet.hr> wrote:
>
>> Hello,
>>
>> I'm having difficulties reading sub-hourly time records from WRF grib
>> files in GrADS.
>>
>> UPP follows NCEP code table for timing grib records - for 15 and 30
>> minute records use codes 13 and 14 respectively instead of simple
>> minutes. This seems to confuse GrADS (or g2ctl/gribmap, I'm not sure).
>>
>> What I get as result is that I can read any sub-hourly record as long as
>> it is not 15 or 30 minute record. For those, I get undefined grid
>> instead of data.
>>
>> I use this workflow for postprocessing: wfrout >(UPP)> grib1 >(cnvgrib)>
>> grib2 >(g2ctl,gribmap)> GrADS
>>
>> Does anybody know what is going on there?
>>
>> Thank you in advance
>>
>> Ivan Toman
>>
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>
>
>
> --
> Jeff Duda
> Post-doctoral research fellow
> University of Oklahoma School of Meteorology
>
>
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-- 
Jeff Duda
Post-doctoral research fellow
University of Oklahoma School of Meteorology
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