Subject: Administrative: Jason-2 NOTIFICATION Issued: November 19,
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*Topic:* ECMWF model change to 40r1
*Date Issued:* November 19, 2013 1615 UTC
*Product(s) or Data Impacted:* Jason-2 Operational Geophysical Data
Records (OGDRs)
*Date/Time of Initial Impact: *November 20,2013 06 UTC - When
interpolation with the new grid begins.
*Date/Time of Expected End:* NA
**
*Length of Event:* Permanent
*Details/Specifics of Change:* ECMWF has upgraded their operational
meteorological models significantly. These changes became active on 19
November and will have impacts on the production of all Jason-2 data
(OGDRs first, then also IGDRs and GDRs). EUMETSAT made an analysis of
the impacts and it showed significant changes in the model wet and dry
tropospheric correction fields up to about ±5 cm, which are expected to
result in improvements of these fields. While the changes from the
previous ECMWF cycle 38r2 to 40r1 are significant, they are only about
one third of the differences between analysed and predicted fields.
Hence we do not expect any adverse impact on the data quality. In fact,
we expect to see improvements. The upgrade took place on November 19.
The first operational run using the new resolution was the 12 UTC
November 19 assimilation and forecast run. The first OGDR products
impacted will be those with a measurement time of 0600 UTC on
November 20.
*Contact Information for Further Information: * ESPC Operations at
ESPCOperations@noaa.gov at 301-817-3880.
*Web Site(s) for applicable information:*
For more information, please visit the ECMWF dedicated web
page:http://www.ecmwf.int/products/changes/ifs_cycle_40r1/
You have been sent this and other notifications because you have opted
in to receive it. If for any reason you wish to unsubscribe; please
contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880.
Please note: it may take up to two business days to process your
unsubscribe request.
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Jason-2 NOTIFICATION
Topic: ECMWF model change to 40r1
Date Issued: November
19,
2013 1615 UTC
Product(s) or Data Impacted:
Jason-2 Operational Geophysical Data Records (OGDRs)
Date/Time of Initial Impact: November
20,2013 06
UTC - When interpolation with the new grid begins.
Date/Time of Expected End:
NA
Length of Event: Permanent
Details/Specifics of
Change: ECMWF has upgraded
their operational meteorological models significantly. These
changes became active on 19 November and will have impacts on
the production of all Jason-2 data (OGDRs first, then also
IGDRs and GDRs). EUMETSAT made an analysis of the impacts and
it showed significant changes in the model wet and dry
tropospheric correction fields up to about ±5 cm,
which are
expected to result in improvements of these fields. While the
changes from the previous ECMWF cycle 38r2 to 40r1 are
significant, they are only about one third of the differences
between analysed and predicted fields. Hence we do not expect
any adverse impact on the data quality. In fact, we expect to
see improvements. The upgrade took place on November 19. The
first operational run using the new resolution was the 12 UTC
November 19 assimilation and forecast run. The
first OGDR
products impacted will be those with a measurement time of
0600 UTC on November 20.
Contact Information for Further
Information: ESPC Operations at ESPCOperations@noaa.gov
at 301-817-3880.
Web Site(s) for applicable
information:
For more information, please visit the ECMWF
dedicated web page:http://www.ecmwf.int/products/changes/ifs_cycle_40r1/
You have been sent this and other notifications because you have
opted in to receive it. If for any reason you wish to
unsubscribe;
please contact ESPC Help Desk at ESPCOperations@noaa.gov
or (301) 817-3880. Please note: it may take up to two
business days
to process your unsubscribe request.
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