[gradsusr] combining GRIB fiiles

Sujata Pattanayak sujata05 at gmail.com
Mon Aug 2 07:23:49 EDT 2010


Hi Teresa,
     Thanks for your kind suggestion.
I tried with your option. Now I am getting
tdef 2 linear ... 3hr
But, when I am trying to plot through grads, for (t=2), entire Grid
Undefined message is coming.
I have uploaded two of my .grb files in the following ftp site.
Please have a look in to it and please suggest me something in this regard.
ftp://ftp.rap.ucar.edu/incoming/irap/sujata

With regards,
Sujata


On Mon, Aug 2, 2010 at 2:57 PM, teresa tiberi <crancyfera at gmail.com> wrote:

> ok,
> when you use grib2ctl.pl, did you write as follow?
>
> grib2ctl.pl -verf big_file.grb > big_file.ctl
>
> if you do and you don't obtain this row
> tdef 2 linear ... 3hr
>
> try to send me your wrfprs* file by mail or give me a ftp address where I
> can download your files
>
>
> regards
> Teresa
>
> 2010/8/2 Sujata Pattanayak <sujata05 at gmail.com>
>
>> Hi Teresa,
>> Thanks a lot for your kind suggestion.
>> I have downloaded the latest version of grib2ctl.pl, But still in .ctl
>> file only one time is written.
>> In .ctl file, time is defined as follows.
>> tdef 1 linear 00Z28apr2008 1mo
>>
>> Also I am attaching my  .ctl file for your reference.
>> Please suggest me something in this regard.
>>
>> regards,
>> Sujata
>>
>>
>> On Mon, Aug 2, 2010 at 1:51 PM, teresa tiberi <crancyfera at gmail.com>wrote:
>>
>>> you can see in this two rows that your file is ok:
>>>
>>> 333:6969460:d=08042800:WTMP:kpds5=80:kpds6=1:kpds7=0:TR=0:P1=0:P2=0:TimeU=1:sfc:anl:NAve=0
>>> 334:7002466:d=08042800:PRMSL:kpds5=2:kpds6=102:kpds7=0:TR=0:P1=3:P2=0:TimeU=1:MSL:3hr
>>> fcst:NAve=0
>>>
>>> you have 1-333 records of anl and 334-666 of 3hr fcst
>>> So you big_file.grb is ok
>>> for ctl try to download last version of grib2ctl.pl
>>> I use 0.9.12.5p46
>>>
>>> I hope this solve the problems,otherwise I'm here ;)
>>>
>>> regards
>>> Teresa
>>>
>>>
>>> 2010/8/2 Sujata Pattanayak <sujata05 at gmail.com>
>>>
>>>> Hi Teresa,
>>>>  Thanks for your suggestion.
>>>> But, wrfprs files are not empty.
>>>> The output from
>>>> grib2ctl.pl -verf new.grb >new.ctl
>>>>
>>>> Undefined parameter table (center 7-0 table 129), using NCEP-opn
>>>>
>>>> Also, I am enclosing the output from wgrib "grib_file_name" as
>>>> wgrib_out.
>>>> But, I looked into this output, and only one time is available.
>>>> Can I send my two grib files.
>>>>
>>>> regards,
>>>> Sujata
>>>>
>>>>
>>>>
>>>> On Mon, Aug 2, 2010 at 1:13 PM, teresa tiberi <crancyfera at gmail.com>wrote:
>>>>
>>>>> Hi Sujata ,
>>>>>
>>>>> are you sure both of your wrfprs files aren't empty?
>>>>>
>>>>> make and other test:
>>>>> please write
>>>>> grib2ctl.pl -verf big_file.grb > big_file.ctl
>>>>> please copy here your big_file.ctl and  the output of command:
>>>>> wgrib big_file.grb
>>>>>
>>>>> thanks
>>>>> Teresa
>>>>>
>>>>> 2010/8/2 Sujata Pattanayak <sujata05 at gmail.com>
>>>>>
>>>>> Hi Teresa,
>>>>>>     I have appended the files and then create the .ctl & .idx files.
>>>>>> But, in .ctl file, only one time (first time) data is there.
>>>>>> Still it is not taking all time data.
>>>>>> Please suggest me in this regard.
>>>>>>
>>>>>> Regards,
>>>>>> Sujata
>>>>>>
>>>>>>
>>>>>> On Mon, Aug 2, 2010 at 11:45 AM, teresa tiberi <crancyfera at gmail.com>wrote:
>>>>>>
>>>>>>> Hello,
>>>>>>>
>>>>>>> maybe you didn't append files?I don't know.
>>>>>>> you can write as follow
>>>>>>>
>>>>>>> cat        wrfprs_d01.000 > big_grib_file.grb
>>>>>>> cat        wrfprs_d01.003 >> big_grib_file.grb
>>>>>>>
>>>>>>> then create .ctl and .idx files.
>>>>>>> Let me know if you have the same problem
>>>>>>>
>>>>>>> regards
>>>>>>> Teresa
>>>>>>>
>>>>>>> 2010/7/31 Sujata Pattanayak <sujata05 at gmail.com>
>>>>>>>
>>>>>>>> Dear Sir,
>>>>>>>> I need help regarding combining multiple grib files in to a single
>>>>>>>> grib file.
>>>>>>>> I have the model output as follows.
>>>>>>>>
>>>>>>>>        wrfprs_d01.000
>>>>>>>>        wrfprs_d01.000.idx
>>>>>>>>        wrfprs_d01_000.ctl
>>>>>>>>        wrfprs_d01.003
>>>>>>>>        wrfprs_d01.003.idx
>>>>>>>>        wrfprs_d01_003.ctl
>>>>>>>>        ---
>>>>>>>> I had tried with 'CAT' command, but while creating the .ctl file, it
>>>>>>>> is taking only first time data .
>>>>>>>> Can anybody please help me in this regard.
>>>>>>>>
>>>>>>>> With regards,
>>>>>>>> Sujata
>>>>>>>>
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>>>>>>>>
>>>>>>>>
>>>>>>>
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