[Cosmic_announce] Edition 4 BUFR files expected soon!

[Lidia Cucurull]

Hi Doug,

Looks like a good plan. In this case, NCEP should be ready for the change.

Thanks,
Lidia

On Nov 26, 2012, at 11:44 AM, Doug Hunt wrote:

> Hi Dave, all:  I think Dave is right--we should not mix up two changes: One to BUFR edition 4 and one to the proposed center ID 175.  So, I'm attaching two *new* proposed BUFR files, this time with edition 4 and center ID 60.  We can make the change (if necessary) to center ID 175 when that ID is finalized.
> 
> Please let me know if *these* files would work for you!
> 
> Take care,
> 
>  Doug
> 
> dhunt at ucar.edu
> Software Engineer
> UCAR - COSMIC, Tel. (303) 497-2611
> 
> On Mon, 26 Nov 2012, Offiler, Dave wrote:
> 
>> Hi Doug,
>> 
>> I would suggest sticking with 60 until the new code is formalised and
>> published in the WMO
>> 'red book' (WMO-306), when everyone will update their local operational
>> tables. Right now,
>> 175 is (at best) a proposal, and could, in principle, change before
>> being formally agreed by WMO.
>> 
>> Dave
>> 
>> === Please note that I now work part-time, Mon-Wed only ===
>> --
>> David Offiler   Head Satellite Active Sensing Group
>> Met Office   FitzRoy Road   Exeter   EX1 3PB   United Kingdom
>> Tel: +44 (0)1392 88 6298    Fax: +44 (0)1392 88 5681
>> E-mail: dave.offiler at metoffice.gov.uk   http://www.metoffice.gov.uk
>> 
>> -----Original Message-----
>> From: cosmic_announce-bounces at ucar.edu
>> [mailto:cosmic_announce-bounces at ucar.edu] On Behalf Of Doug Hunt
>> Sent: 21 November 2012 16:42
>> To: Harald Anlauf
>> Cc: Announcements about the COSMIC mission
>> Subject: Re: [Cosmic_announce] Edition 4 BUFR files expected soon!
>> 
>> Hi Harald:  I did notice a few small differences in the data values.
>> These are due to the fact that I am using a different BUFR library that
>> uses double precision rather than single precision.  So, if anything the
>> new values ought to be more accurate.
>> 
>> As to the 175 'originating center' value, we have contacted NOAA to
>> apply to the WMO about getting 175 reserved for 'UCAR' rather than using
>> 60 ('NCAR').
>> 
>> Regards,
>> 
>>  Doug
>> 
>> dhunt at ucar.edu
>> Software Engineer
>> UCAR - COSMIC, Tel. (303) 497-2611
>> 
>> On Wed, 21 Nov 2012, Harald Anlauf wrote:
>> 
>>> Hi Doug!
>>> 
>>> On Tuesday, 20. November 2012 21:06:28 Doug Hunt wrote:
>>>> Greetings:
>>>> 
>>>> The current version of BUFR files available from CDAAC and the GTS is
>> 
>>>> edition 3.  By the end of November, the WMO wants all edition 3 files
>> 
>>>> to be phased out in favor of the more recent edition 4 BUFR files.
>>>> 
>>>> The change is only a small difference in the header--all the values
>>>> remain the same.  Attached are sample edition 4 BUFR files from the
>>>> COSMIC and C/NOFS missions.
>>> 
>>> the attached data actually do show small differences to the data
>>> disseminated via GTS (usually a few meters in impact parameter, and
>>> also small differences in the bending angles), but the obs-model check
>> 
>>> shows that the effective differences are much smaller than the
>>> observation errors we apply operationally.
>>> 
>>> While running these data through our assimilation system, I noticed
>>> that the field "originating center" is set to 175 (i.e. reserved for
>>> other centers).  Is there a reason that you do not use the value 60
>>> there, or is it an oversight?
>>> 
>>>> Next week we plan to start delivering these files.  Note that the
>>>> version will change from the current '0001.0006' to '0001.0007'.
>>>> 
>>>> Please let me (dhunt at ucar.edu) know if you see a problem with
>>>> these files or need extra time!
>>> 
>>> Cheers,
>>> Harald
>>> 
>>> --
>>> Dr. Harald Anlauf
>>> Deutscher Wetterdienst (DWD)           | Phone:  +49 69 8062 4941
>>> FE12 / Datenassimilation               | Fax:    +49 69 8062 3721
>>> Frankfurter Str. 135                   | e-Mail: harald.anlauf at dwd.de
>>> 63067 Offenbach                        | Web:    http://www.dwd.de
>>> 
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