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[LDM #JKQ-274656]: NAM data question
- Subject: [LDM #JKQ-274656]: NAM data question
- Date: Fri, 24 Aug 2012 08:09:15 -0600
Hi Gerry,
re:
> I'm trying to get the NAM 12km data in for a Warn on Forecast exercise. The
> NAM 12km data on CONDUIT are surface fields only. Looks like the NAM data
> in NGRID are 3d with some surface fields. In looking at ftpprd.ncep.noaa.gov,
> the NGRID files appear to be considerably smaller than the awphys files
> (NAM 12, 3d) files found on the FTP site.
>
> Any idea what the difference is?
No, not really. The NWS chooses the models and fields from those models for
NOAAPort based on WFO needs. From my observation, the GRIB2 messages are
wrapped
with some additional information (by Raytheon?) before being sent in NOAAPort.
The IDD NGRID feed populated by the nwstg2 products being sent in NOAAPort.
Questions:
- have you tried comparing sizes of individual fields for the exact same
day/time from the FTP site and in NGRID?
- can you provide a URL for the FTP site you are referring to?
Comment:
- the CONDUIT content can be changed if there is general agreement by
the CONDUIT community, AND if there is enough bandwidth to accommodate
increased volumes of data
If the fields needed are not available in CONDUIT or NGRID, you may want
to start a campaign to get them added to CONDUIT. I would start this
by sending a note to the address@hidden email list.
Cheers,
Tom
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Ticket Details
===================
Ticket ID: JKQ-274656
Department: Support Datastream
Priority: Normal
Status: Closed
