[Met_help] [rt.rap.ucar.edu #48410] History for pb2nc for GPSIPW messages

Tue Sep 13 14:40:45 MDT 2011

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  Initial Request
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Hello,

I am running METv3.0.1 on a 32-bit RHEL5 OS.  I am attempting to make a 
netCDF file of GPSIPW observations in the prepbufr file for the NAM.  I 
execute:

>  pb2nc nam.t00z.prepbufr.tm00.nr out.nc PB2NCConfig_default -v 10

But get:

> Reading Config File:    PB2NCConfig_default
> Creating NetCDF File:   out.nc
> Processing PrepBufr File:       nam.t00z.prepbufr.tm00.nr
> Blocking PrepBufr file to:      /tmp/tmp_pb2nc_blk_31880_0
> PrepBufr Time Center:   20110713_000000
> Searching Time Window:  20110712_230000 to 20110713_010000
> Processing 102987 PrepBufr messages...
> 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 
> 95% 100%
> Total PrepBufr Messages processed       = 102987
> Rejected based on message type          = 102766
> Rejected based on station id            = 0
> Rejected based on valid time            = 0
> Rejected based on masking grid          = 0
> Rejected based on masking polygon       = 0
> Rejected based on elevation             = 0
> Rejected based on pb report type        = 0
> Rejected based on input report type     = 0
> Rejected based on instrument type       = 0
> Rejected based on zero observations     = 221
> Total PrepBufr Messages retained        = 0
> Total observations retained or derived  = 0
> ***WARNING*** process_pbfile() -> No PrepBufr messages retained from 
> file: nam.t00z.prepbufr.tm00.nr
>
>
> ERROR: write_netcdf_hdr_data() -> No PrepBufr messages retained.  
> Nothing to write.

However, as far as I can tell, the dump file shows that there are valid 
observations in the prepbufr file.  What am I misunderstanding?  Where 
am I going wrong?

I have temporarily uploaded my configuration, input prepbufr, and dump 
files to:

ftp://ftp.ssec.wisc.edu/pub/ssec/jordang/pb2nc/

Best,

Jordan Gerth
CIMSS/SSEC - Madison, WI
A NOAA Cooperative Institute

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  Complete Ticket History
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Subject: Re: [rt.rap.ucar.edu #48410] pb2nc for GPSIPW messages
From: John Halley Gotway
Time: Tue Jul 19 16:33:26 2011

Jordan,

Sorry for the delay in getting back with you.  I took a look at the
PB2NC config file and the GPSIPW ascii dump files you sent.

While we haven't used the GPS integrated precipitable water
observations in our verification work here, I understand why you would
be interested in doing so.  Unfortunately, PB2NC does not currently
have the capability to extract those observation types.  Instead, it's
set up to extract observations of type pressure, specific humidity,
temperature, height, U-wind, and V-wind - and derive a few
variables from those.

Regarding the larger of issue of PB2NC extracting additional
observations from PREPBUFR files, that's an area of development that
we're aware of.  We'd like to enhance PB2NC to ensure that we're fully
accessing all observation types available in PREPBUFR, but haven't
been able to yet.  Sorry for this lack of functionality.

John Halley Gotway
met_help at ucar.edu

On 07/16/2011 09:08 PM, RAL HelpDesk {for Jordan Gerth} wrote:
>
> Sat Jul 16 21:08:00 2011: Request 48410 was acted upon.
> Transaction: Ticket created by jordan.gerth at noaa.gov
>        Queue: met_help
>      Subject: pb2nc for GPSIPW messages
>        Owner: Nobody
>   Requestors: jordan.gerth at noaa.gov
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=48410 >
>
>
> Hello,
>
> I am running METv3.0.1 on a 32-bit RHEL5 OS.  I am attempting to
make a
> netCDF file of GPSIPW observations in the prepbufr file for the NAM.
I
> execute:
>
>>  pb2nc nam.t00z.prepbufr.tm00.nr out.nc PB2NCConfig_default -v 10
>
> But get:
>
>> Reading Config File:    PB2NCConfig_default
>> Creating NetCDF File:   out.nc
>> Processing PrepBufr File:       nam.t00z.prepbufr.tm00.nr
>> Blocking PrepBufr file to:      /tmp/tmp_pb2nc_blk_31880_0
>> PrepBufr Time Center:   20110713_000000
>> Searching Time Window:  20110712_230000 to 20110713_010000
>> Processing 102987 PrepBufr messages...
>> 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85%
90%
>> 95% 100%
>> Total PrepBufr Messages processed       = 102987
>> Rejected based on message type          = 102766
>> Rejected based on station id            = 0
>> Rejected based on valid time            = 0
>> Rejected based on masking grid          = 0
>> Rejected based on masking polygon       = 0
>> Rejected based on elevation             = 0
>> Rejected based on pb report type        = 0
>> Rejected based on input report type     = 0
>> Rejected based on instrument type       = 0
>> Rejected based on zero observations     = 221
>> Total PrepBufr Messages retained        = 0
>> Total observations retained or derived  = 0
>> ***WARNING*** process_pbfile() -> No PrepBufr messages retained
from
>> file: nam.t00z.prepbufr.tm00.nr
>>
>>
>> ERROR: write_netcdf_hdr_data() -> No PrepBufr messages retained.
>> Nothing to write.
>
> However, as far as I can tell, the dump file shows that there are
valid
> observations in the prepbufr file.  What am I misunderstanding?
Where
> am I going wrong?
>
> I have temporarily uploaded my configuration, input prepbufr, and
dump
> files to:
>
> ftp://ftp.ssec.wisc.edu/pub/ssec/jordang/pb2nc/
>
> Best,
>
> Jordan Gerth
> CIMSS/SSEC - Madison, WI
> A NOAA Cooperative Institute

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