[ncl-talk] Problem running ncl_convert2nc (Error unpacking GRIB record section 4)

[Dennis Shea]

6.3.0 will unpack one variable also. The name of the variable will be
different because (! wild guess !) the needed table was not complete or
available.

GRIB  is a bit of a 'moving target'   :-(

I have opened a JIRA ticket:  NCL-2533

Unfortunately, this is not a great week to get things done.

Maybe, an IO developer will look?

D





On Tue, Dec 27, 2016 at 4:48 PM, Ligia Bernardet - NOAA Affiliate <
ligia.bernardet at noaa.gov> wrote:

> Hi Dennis,
>
> There are 18 fields in the GRIB2 file. In the NetCDF file you sent back to
> me there is 1.
> But more importantly, I need to find a way to do this myself, so I can
> process the multiple files I have.
>
> The machine I am using, a NOAA's R&D platform, I was able to find NCL
> v6.3. Would this version be usable to read this GRIB2 file, until a newer
> version is available?
>
> Thanks,
> Ligia
>
>
>
> On Tue, Dec 27, 2016 at 4:11 PM, Dennis Shea <shea at ucar.edu> wrote:
>
>> Attached is a gzip'd version of the netCDF file.
>>
>> The 'soon-to-be-released' beta 6.4.0 returns a warning message. I will
>> open a JIRA ticket.
>> Note: I believe the numbers are correct.
>>
>> =========
>>
>>  NCAR Command Language Version 6.4.0 -27Dec2016_0148
>>
>> warning:NclGRIB2: BRTEMP_P32 contains records that NCL cannot currently
>> differentiate. One or more records will be ignored.
>>
>> Variable: f
>> Type: file
>> filename:       gonzalo08l.2014101412 <(201)%20410-1412>.hwrfsat.
>> global.0p25.f024
>> path:   /Users/shea/Data/GRIB/gonzalo08l.2014101412 <(201)%20410-1412>
>> .hwrfsat.global.0p25.f024.grb2
>>    file global attributes:
>>    dimensions:
>>       lat_0 = 721
>>       lon_0 = 1440
>>    variables:
>>       float BRTEMP_P32_GLL0 ( lat_0, lon_0 )
>>          center :       US National Weather Service - NCEP (WMC)
>>          production_status :    Operational products
>>          long_name :    Brightness temperature
>>          units :        K
>>          _FillValue :   1e+20
>>          grid_type :    Latitude/longitude
>>          parameter_discipline_and_category :    Meteorological products,
>> Long wave radiation
>>          parameter_template_discipline_category_number :        ( 32, 0,
>> 5, 7 )
>>          forecast_time :        0
>>          forecast_time_units :  hours
>>          initial_time : 10/14/2014 (12:00)
>>
>>       float lat_0 ( lat_0 )
>>          long_name :    latitude
>>          grid_type :    Latitude/Longitude
>>          units :        degrees_north
>>          Dj :   0.25
>>          Di :   0.25
>>          Lo2 :  359.75
>>          La2 :  -90
>>          Lo1 :   0
>>          La1 :  90
>>
>>       float lon_0 ( lon_0 )
>>          long_name :    longitude
>>          grid_type :    Latitude/Longitude
>>          units :        degrees_east
>>          Dj :   0.25
>>          Di :   0.25
>>          Lo2 :  359.75
>>          La2 :  -90
>>          Lo1 :   0
>>          La1 :  90
>>
>> =========
>> The min and max are:
>>
>>  (0)     Brightness temperature (K) : min=184.67   max=319.49
>>
>>
>>
>> On Tue, Dec 27, 2016 at 1:13 PM, Ligia Bernardet - NOAA Affiliate <
>> ligia.bernardet at noaa.gov> wrote:
>>
>>> Hello,
>>>
>>> I have transferred file gonzalo08l.2014101412 <(201)%20410-1412>
>>> .hwrfsat.global.0p25.f024.grb2  to /ftp/incoming.
>>>
>>> Thanks,
>>> Ligia
>>>
>>> On Tue, Dec 27, 2016 at 1:06 PM, Dennis Shea <shea at ucar.edu> wrote:
>>>
>>>> [1]
>>>> 6.1.2 (Feb. 2013) is almost 4 years old. Much has happened since.
>>>>
>>>> [2]
>>>> To be able to determine the problem or if the current version of NCL
>>>> has addressed the issue, we would need the file.
>>>>
>>>> ftp ftp.cgd.ucar.edu
>>>> anonymous
>>>> your_email
>>>> cd incoming
>>>> prompt
>>>> put gonzalo08l.2014101412 <%28201%29%20410-1412>.hwrfsat.
>>>> global.0p25.f024.grb2
>>>> quit
>>>>
>>>> We can not look at /ftp/incoming, so ....
>>>>
>>>> Let ncl-talk know when the file has been transferred.
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Dec 27, 2016 at 12:56 PM, Ligia Bernardet - NOAA Affiliate <
>>>> ligia.bernardet at noaa.gov> wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I would like to use convert a GRIB2 file generated by NCEP's Hurricane
>>>>> WRF (HWRF) model to a NetCDF file. However, I am encountering the error
>>>>> below. Any suggestions?
>>>>>
>>>>> Thanks,
>>>>> Ligia
>>>>>
>>>>>
>>>>> *ncl_convert2nc gonzalo08l.2014101412
>>>>> <(201)%20410-1412>.hwrfsat.global.0p25.f024.grb2*
>>>>> Processing file: gonzalo08l.2014101412 <(201)%20410-1412>.hwrfsat.
>>>>> global.0p25.f024.grb2...
>>>>> Copyright (C) 1995-2013 - All Rights Reserved
>>>>> University Corporation for Atmospheric Research
>>>>> NCAR Command Language Version 6.1.2
>>>>> The use of this software is governed by a License Agreement.
>>>>> See http://www.ncl.ucar.edu/ for more details.
>>>>> getpdstemplate: PDS Template 4.32 not defined.
>>>>> warning:Error unpacking GRIB record section 4.
>>>>> fatal:Could not open (./gonzalo08l.2014101412 <(201)%20410-1412>.hwrfs
>>>>> at.global.0p25.f024.grb2)
>>>>> Segmentation fault
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>
>>>
>>
>
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