[IDD #YTM-858233]: RUC 13 model data on noaaport

Hi Ernie,

re:
> Hello,I have managed to get our noaaport/ldm ingest system up
> and runnning thanks in large part to the terrific support
> provided by all of you folks there.

Excellent!

> Thanks a lot for all of help with this.

No worries.

> I, of course, do have another question.

:-)

> We would like to receive and utilize the RUC 13km model data.
> It is my understanding that this output is available on the
> noaaport since DEDC '07. Is there a pqact entry or example
> that you could point me to allow the reception of said
> product?

The 13 km RUC output can be found in the NGRID datastream.  The
easiest way to see the various products in NGRID is to use the
LDM 'notifyme' utility:

<as 'ldm' on your NOAAPort ingest system or one of its downstreams>
notifyme -vl- -f NGRID -o 10000 -p RUC     <- on the ingest system
notifyme -vl- -f NGRID -o 10000 -p RUC -h your_ingest_systems_hostname  <- from 
a downstream

The you can use the 'notifyme' output to see what the product
IDs look like and then fashion a regular expression that matches
just the ones you want.  The examples above both include the '-p'
flag which specifies a regular expression that is used to list
just the products desired (this example is as simple as it gets).
Here is another one:

notifyme -vl- -f NGRID -o 10000 -p "(HGHT|TMPK)"

This will list out just the HGHT and TMPK grids that have been
received.

Keep refining the regular expression value used in the 'notifyme'
invocation to get just the field(s) you want and then use that
same regular expression (without the quotes) in an LDM pattern-action
file.  For instance, here is a _very_ simple action for a pattern-action
file that will FILE all of the TMPK grids from RUC2 in the NGRID
datastream:

NGRID   (RUC2)/..../(......)(....)F(...)/(TMPK)
    FILE    -close     data/ngrid/\1/\5_\2\3.\4

NB:  some of the white spaces in this expression MUST be tabs:

  - tab between NGRID and (RUC2)
  - tab before FILE
  - tab between FILE and -close
  - tab between -close and data

For a product whose seen as follows in a 'notifyme' listing:

Apr 22 17:14:00 notifyme[19720] INFO:    27355 20090422170349.935   NGRID 
59418198  LTDG57 KWBG 221600 !grib2/ncep/RUC2/#130/200904221600F006/TMPK/575 
hPa PRES

this entry would produce the following file:

~ldm/data/ngrid/RUC2/TMPK_200904221600.006

'notifyme' is _extremely_ useful in finding out what data is available
either locally or on an upstream machine that has allowed your LDM
access, and for crafting regular expressions that can be used in
~ldm/etc/ldmd.conf REQUEST lines or LDM pattern-action file actions.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: YTM-858233
Department: Support IDD
Priority: Normal
Status: Closed