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20040121: Unidata-Wisconsin data stream image sectors (cont.)

>From: "Kevin W. Thomas" <address@hidden>
>Organization: OU/CAPS
>Keywords: 200401211804.i0LI4np2014677 IDD UNIWISC

Hi Kevin,

re: Unidata-Wisconsin half hourly imagery

>I don't see any change.
>
>GOES12 vis/ir/wv all have time stamps of 15 minutes past the hour, and arrive
>about 26 minutes past the hour.  No 45 minutes past the hour images.
>
>GOES10 vis/ir/wv all have time stamps of 00 minutes past the hour, and arrive
>about 11 minutes past the hour.  No 30 minutes past the hour images.

Since I am able to look at UNIWISC data ingestion on 9 different machines
scattered around the country and they are all getting all GOES-East/West
imager channels twice-per-hour, I must conclude that one or two of three
things are wrong:

- the request line in your ~ldm/etc/ldmd.conf file are only requesting
  a fraction of the data.  If you want all of the data, your request
  line should look like:

request UNIWISC ".*"    upstream_idd_host

- the machine you are requesting the UNIWISC stream from has a
  limited request in its ~ldm/etc/ldmd.conf file

- the pqact.conf entries you are using for decoding the UNIWISC data are
  not processing all of the imagery

Is your machine kiowa.caps.ou.edu?  If yes, then the volume of UNIWISC
data that you are receiving (as reported by the LDM utility 'rtstats')
is the same as is being sent out from the UNIWISC injection machine
(unidata2.ssec.wisc.edu) and received at other IDD nodes:

kiowa.caps.ou.edu
UNIWISC:
http://my.unidata.ucar.edu/content/software/idd/rtstats/siteindex.php?kiowa.caps.ou.edu

atm.geo.nsf.gov
UNIWISC:
http://my.unidata.ucar.edu/cgi-bin/rtstats/iddstats_vol_nc?UNIWISC+atm.geo.nsf.gov

Both plots show data volumes of over 18 MB/hour for peaks.  Before the
datastream change, the peaks were on the order of 6 MB/hour.

So, if your machine is kiowa.caps.ou.edu, I would say that there is
a problem in your decoding of data.

Can you tell me what your pqact.conf decode entries look like?

Tom
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