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

Tue Dec 27 16:48:14 MST 2016

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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