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Re: [ldm-users] UKMET grid issue

Hi Brendon,
We're still using GEMPAK6.10, but no problems with decoding have been noticed(looking at log files). I have noticed the file sizes for the ukmet.gem files are smaller than they use to be(less than half). The data files go out to hour 36 instead of 72 hours now. 

-rw-r--r-- 1 ldm gempak   109056 Jun 12 09:08 2014061212_egrr255.gem
-rw-r--r-- 1 ldm gempak    83456 Jun 12 09:47 2014061212_ukm019255.gem
-rw-r--r-- 1 ldm gempak 14639104 Jun 12 09:08 2014061212_ukmet.gem
-rw-r--r-- 1 ldm gempak   244224 Jun 12 09:47 2014061212_ukmwav255.gem


James

----------------------------------------------
James Murakami
Staff Meteorologist/Student Affairs
Department of Atmospheric and Oceanic Sciences
University of California, Los Angeles
405 Hilgard Ave.
Los Angeles, CA  90095-1565


   e-mail: tenki@xxxxxxxxxxxxxx
telephone: 310-825-2418
      Fax: 310-206-5219
----------------------------------------------

On 06/12/2014 08:18 AM, Brendon Hoch wrote:

Hello,
We've noticed an issue with reception of UKMET grids, it looks like surface grids have stopped coming in. Has anyone else noticed this? One clue is our GEMPAK decoder logs: 

[bhoch@cyclone logs]$ grep incompatible *
dcgrib2_ocn.log.1:[10597] 140611/0312[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061100_egrr255.gem dcgrib2_ocn.log.1:[18538] 140611/1515[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061112_egrr255.gem dcgrib2_ocn.log.2:[13451] 140610/0432[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061000_ukm019255.gem dcgrib2_ocn.log.2:[8252] 140610/1633[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061012_ukm019255.gem dcgrib2_ocn.log.2:[8252] 140610/1633[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061012_ukm019255.gem dcgrib2_UKMET.log:[19841] 140612/0313[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061200_egrr255.gem dcgrib2_UKMET.log.1:[1334] 140611/1634[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061112_ukm019255.gem dcgrib2_UKMET.log.2:[30938] 140610/1514[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061012_egrr255.gem dcgrib2_UKMET.log.2:[30938] 140610/1514[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061012_egrr255.gem dcgrib2_UKMET.log.2:[30938] 140610/1514[DCGRIB 1] Grid navigation 255 incompatible with file data/gempak/model/ukmet/2014061012_egrr255.gem
Perhaps a table was recently changed? I just upgraded to the latest version of Gempak 7, so my tables "should" be up to date. Seeing similar behavior in WXP, so my prime suspect is a change by the UKMET office. Any help is greatly appreciated. 

Thanks,
Brendon
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