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[IDD #UYW-180327]: LDM data feed for COSMIC

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  • Subject: [IDD #UYW-180327]: LDM data feed for COSMIC
  • Date: Fri, 19 Jan 2018 13:15:29 -0700
Hi Sen,

Sorry for the slow reply.  You sent your question to my personal UCAR
email address, and it got lost with in my inbox because of lots of email
related to GOES-16 imagery.  In the future, it would be better to send
the question to:

address@hidden

as there is more than one Unidata staff who reads those inquiries.

re:
> I am writing to ask cosmic data via LDM.

The top level IDD relays that we run here in UCAR relay the COSMIC netCDF
files in the EXP feed type.

re:
> I searched it and found one
> thread about this that you answered the similar question, but I don't
> know which site is the upstream site COSMIC.

The following top level relays should all have the COSMIC data in the
EXP feed:

idd.unidata.ucar.edu
iddb.unidata.ucar.edu
idd.meteo.psu.edu
idd.tamu.edu (but this top level relay service will be going away)

re:
> and also the setting on
> pqact.conf. I am trying to get .nc files for WRF data assimilation purpose.

Since the EXP feed type contains more than COSMIC data, you will want to
restrict your LDM configuration file REQUEST to just ask for the COSMIC
data:

REQUEST EXP "cosmicrt" <upstream feed host>

Of course, there are a number of way to process the data from any datastream,
the easiest of which is to FILE the products to disk.  Since we are not
processing the COSMIC products, I have no ready made pattern-action file
action to provide as an example, sorry.  But, the simplest thing to do
is:

- REQUEST the data (see above)

- run

  notifyme -vl logs/cosmic.log -f EXP -p cosmicrt

  for a day to capture the LDM/IDD Product Ids for the COSMIC
  data and then craft a pattern-action file action to FILE
  the data products in the disk hierarchy you want to use.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: UYW-180327
Department: Support IDD
Priority: Normal
Status: Closed
===================
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