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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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To learn about what's going on, see About the Archive Site.
The 40km NAM grids are still vitally important for the imagery we produce for the web. We do make use of some of the 12km grid for sfc parameters, but everything above the sfc/2m/10m level is 40km, simply because our hardware would choke trying to use the 12km grid for all the NAM plots we generate. Hardware issues aside, I'm not sure I actually want to use the 12km grids for upper levels anyway. -Eric --Eric Nelson - Weather Data Manager College of Dupage Meteorology Dept. http://weather.cod.edu enelson@xxxxxxxxxxxxxxx
On Wed, 22 Oct 2008, Unidata CONDUIT Support wrote:
Users of the IDD CONDUIT datastream: This email is being sent on behalf of the Unidata Users's Committee. Compilation of responses to the Unidata User's Committee spring 2008 survey on CONDUIT datastream deletions/additions showed consensus for the following changes to the datastream: Removals: - 40 km NAM CONUS (NCEP offering to provide 12 km, 60 levels, 84 hours at 0,6,12,18Z) - 2.5 degree MRF out to 168 hours Additions: - RTMA -- Real Time Mesoscale Analysis - SREF -- Short Range Ensemble Forecast Based on the survey results, we will be working with NCEP to make the following changesto CONDUIT _before_ the annual holiday moratorium on changes to the CCS Production Suite (currently scheduled for Wednesday, 17 December 2008, but changes must be requestedbefore Monday, 20 November): 1) remove the 40 km NAM and 2.5 degree MRF products from CONDUIT 2) add SREF data to CONDUIT 3) add the parallel run (non-operational) RTMA grids to CONDUIT (since the operational RTMA products are already available in the IDD; see below) Please let us know as soon as possible if any of these changes will significantly impact your use of data delivered in CONDUIT. Comments on the availability of operational RTMA grids: - a review of NWS TECHNICAL IMPLEMENTATION NOTICE announcements broadcast in NOAAPort: http://www.weather.gov/om/notification/tin06-24rtma_grids.txt http://www.weather.gov/os/notification/tin06-24aaa_rtma.txt http://xwww.isos.noaa.gov/om/notification/tin08-56_rtma.txt http://www.nws.noaa.gov/os/notification/tin07-90rtma_alaska.txt etc. and sent to subscribers of the nws-changes@xxxxxxxxxxxxxxxx email list: http://www.unidata.ucar.edu/mailing_lists/archives/nws-changes/2006-July/004324.html reminded us that a number of operational RTMA grids have been included in the NOAAPort satellite broadcast and in the IDD NGRID datastream since the end of summer, 2006. The RTMA fields currently included in NGRID are: 2 m Temperature and Temperature error 2 m Dewpoint temperature and dewpoint temperature error 10 m U wind component 10 m V wind component 10 m wind Direction and Direction error 10 m wind Speed and Speed Error Precipitation /no error grid/ GOES effective cloud amount /no error grid/ A full listing of what is available can be generated using the 'notifyme' invocations listed below. - a LDM 'pqact' pattern-action entry for some of the RTMA grids that are available in the IDD NGRID datastream is contained in the Unidata GEMPAK v5.11.1 (and several previous) release. Please review the information in the 'Site Configuration for Products' portion of the Unidata GEMPAK website for instructions on how to create LDM pattern-action file(s) and 'ldmd.conf' entries: Unidata HomePage http://www.unidata.ucar.edu Unidata GEMPAK HomePage http://www.unidata.ucar.edu/software/gempak Site Configuration for Products http://www.unidata.ucar.edu/software/gempak/GEMPAK/configuration.html The Unidata GEMPAK 5.11.4 release (which is being prepared now) will contain updated pattern(s) to process the RTMA grids in the IDD NGRID datastream. - NOTE: for sites not using GEMPAK or the GEMPAK LDM pattern action files: - request the RTMA grids via an ldmd.conf entry for the NGRID datastream: request NGRID "RTMA" upstream_feed_host <- replace 'upstream_feed_host' with the name of an LDM server that provides NGRID - use the LDM 'notifyme' utility to verify that your upstream and your own LDMs are receiving the RTMA products from NGRID (in both cases 'notifyme' is run as user 'ldm'): Upstream: notifyme -vxl- -f NGRID -o 10000 -p RTMA -h upstream_feed_host Your own LDM: notifyme -vxl- -f NGRID -o 10000 -p RTMA- example 'pqact' pattern-action file entries that will FILE the non-cloud amountand precipitation RTMA products into different directories based on their grid (e.g., grid 175, 201, 213, 227): # RTMA (real-time mesoscale analysis) grids NGRID RTMA/#(.*)/(............)F.../(.*)/(.*) m HGHT FILE data/rtma/\1/\2_\3.\4m Example 'pqact' pattern-action file entries that will FILE the RTMA GOES effective cloud amount and precipitation products: # RTMA (real-time mesoscale analysis) cloud amount and precipitation grids NGRID RTMA/#(.*)/(............)F.../(.*) FILE data/rtma/\1/\2_\3 Please remember that some whitespace in 'pqact' patterns are tabs, not spaces: whitespace between NGRID and RTMA is a tab whitespace before FILE is a tab whitespace after FILE is a tab Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 support@xxxxxxxxxxxxxxxx Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** _______________________________________________ conduit mailing list conduit@xxxxxxxxxxxxxxxxFor list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
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