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December 10, 2009
MEMORANDUM FOR: Distribution E
FROM: Allan Darling
Deputy Director, NCEP Central Operations (NCO)
SUBJECT: Scheduled Operational Changes and Upgrades <snip>---- OPERATIONAL ANNOUNCEMENTS ---- 1. The following information is being shared to clarify questions regarding the NOMADS systems. NOAA operates four types of NOMADS Servers that host NCEP Model Products: * A near-real-time server supported by NCDC is available at http://nomads.ncdc.noaa.gov/. This server provides: o access to a subset of NCEP's operational data set (as distributed on NOAAPort) shortly after distribution
o a long-term archive for all data sets
o many other data sets (see
http://nomads.ncdc.noaa.gov/data.php?name=inventory)
* A real-time server supported 24x7 by NCEP is available at http://nomads.ncep.noaa.gov/. This server provides:
o access to NCEP's operational data sets as they are being generated
o a short-term archive of up to a month for most data sets
o 24x7 operational monitoring by NCEP staff
o A geographically-diverse backup server to insure operational
availability
* Four non-operational research and development servers used for customer testing of new products and services prior to operational implementation
o These servers are not guaranteed to have current data
o These servers are not guaranteed to be available at all times
o These servers and their content are supported only during
business hours and on the basis of staff availability
o Three non-operational research and development servers managed by
NCEP are available at:
* http://nomad1.ncep.noaa.gov/ncep_data/index.html
* http://nomad3.ncep.noaa.gov/ncep_data/index.html
* http://nomad5.ncep.noaa.gov/ncep_data/index.html
o A non-operational research and development server managed by NCDC
is available at http://nomads6.ncdc.noaa.gov/ncep_data/index.html
* NOAA's Geophysical Fluid Dynamics Laboratory has select Climate Model (CM.x) output for access at:
o http://nomads.gfdl.noaa.gov/CM2.X/
o http://nomads.gfdl.noaa.gov
2. Upcoming major changes to NCEP's production suite and details on any
product or timing changes associated with upcoming implementations can
be viewed at the following website:
http://www.nco.ncep.noaa.gov/pmb/changes/Test data for each of these proposed changes should be available six weeks prior to implementation. Anyone wishing to receive formal notice of the final pre-implementation testing and the opportunity to provide feedback on the proposed changes can subscribe to the Model Evaluation mailing list via:
https://lstsrv.ncep.noaa.gov/mailman/listinfo/ncep.list.modelevalinfo
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