[Cosmic_announce] COSMIC data outage

[Maggie Sleziak-Sallee]

Dear All,

We have just reverted back to our operational data feed.

Warm Regards,
The CDAAC Team.


On 3/10/14 9:21 AM, Bill Schreiner wrote:
> Hi Josep,
>
> Thank you for the information.
> COSMIC-2 is not tracking nominally at this point.
> We just started receiving IGS orbits again and will
> get our operational data feed back on line asap.
> We will send an email out when this is done.
>
> Regards,
> Bill
>
> On Mar 10, 2014, at 9:13 AM, Josep Aparicio<Josep.Aparicio at ec.gc.ca>  wrote:
>
>> Bill,
>>
>> Thank you for your effort.
>>
>> FYI, I checked if I could find systematic differences of the last 2 days of data, with respect
>> to the earlier.
>> Time series do show certain statistical differences (I would point to COSMIC-4, 5 and 6,
>> but not 1; we have no data from 2 after this event), but are not necessarily of worse quality.
>>
>> However, since the number of data now distributed is also smaller, the differences cannot
>> be clearly discerned from selection effects, and are similar to earlier events where the
>> volume of data was fluctuating. We do know that statistics of subsets are different from a
>> near-complete ensemble.
>>
>> We will continue to feed the data, since despite being different, the statistics still match our
>> expectations, and we do not use static error estimations that may now be inaccurate.
>>
>> Josep
>>
>> On 03/10/14 01:02, Bill Schreiner wrote:
>>> Dear weather center personnel,
>>>
>>> You should know that the experimental data feed currently in place
>>> has error characteristics similar to the operational data feed that
>>> is still currently inactive. However, this experimental feed is based on
>>> our new code base and there is some small risk that these data could behave
>>> differently when assimilated into your systems. Because of this, you should consider
>>> suspending assimilation of COSMIC data until the operational feed is
>>> back on line.
>>>
>>> Please let us know asap if you experience any anomalous data.
>>>
>>> We will send out another notification when the operational data feed is re-established.
>>>
>>> Thank you for your patience,
>>> Bill Schreiner and the CDAAC Team
>>>
>>> On Mar 9, 2014, at 3:40 PM, Douglas Hunt<dhunt at ucar.edu>   wrote:
>>>
>>>> Dear weather center personnel:  There has been a COSMIC data outage since last night at around 0400 Z, Day 2014.066.  The outage was due to lack of availability of IGS ultra-rapid orbits.
>>>>
>>>> We have put in place a temporary experimental data feed that uses GPS orbits from CODE instead.
>>>>
>>>> We will send out another notification when the normal data feed is re-established.
>>>>
>>>> Thank you for your patience,
>>>>
>>>>   Doug Hunt and the CDAAC team
>>>>
>>> _______________________________________________
>>> Cosmic_announce mailing list
>>> Cosmic_announce at ucar.edu
>>> http://mailman.ucar.edu/mailman/listinfo/cosmic_announce
>> -- 
>> Dr. Josep Maria APARICIO
>> Data Assimilation and Satellite Meteorology
>> Environment Canada
>> 2121 Transcanada
>> H9P 1J3 Dorval, QC, Canada
>>
>> Tel: (+1)-514-421-4687
>> Fax: (+1)-514-421-2106
>> Josep.Aparicio at ec.gc.ca
>>
>> _______________________________________________
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>> Cosmic_announce at ucar.edu
>> http://mailman.ucar.edu/mailman/listinfo/cosmic_announce
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-- 
Maggie Sleziak-Sallee
Software Engineer
COSMIC - UCAR
Phone: 303-497-8020
Email: maggie at ucar.edu
http://www.cosmic.ucar.edu/