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[Datastream #HXZ-780491]: Alternative location of GOES satellite imagery on the web

Hi Dan,

re:
> Point well taken about the continuous retrieval of data from motherload,
> better to grab sparingly or through LDM.

I relieved to hear that you understand our position!

> In the past I had an LDM feed set up which retrieved 8km WV, 4km IR, and
> 4km VIS GOES10/11/12 data. My pqact.conf entries looked like this.
> 
> # Standard VIS, IR and WV product actions
> #
> MCIDAS  ^pnga2area Q1 (U[^ACXY1]) (.*) (.*)_IMG (0.65)um (.*) (........)
> (....)
> PIPE    -close
> pnga2area -vl /usr/local/ldm/logs/ldm-mcidas.log
> /data/ldm/gempak/images/sat/\3/\5/VIS/VIS_\6_\7
> 
> MCIDAS  ^pnga2area Q1 (U[^ACXY1]) (.*) (.*)_IMG (6..)um (.*) (........)
> (....)
> PIPE    -close
> pnga2area -vl /usr/local/ldm/logs/ldm-mcidas.log
> /data/ldm/gempak/images/sat/\3/\5/WV/WV_\6_\7
> 
> MCIDAS  ^pnga2area Q1 (U[^ACXY1]) (.*) (.*)_IMG (10.7)um (.*) (........)
> (....)
> PIPE    -close
> pnga2area -vl /usr/local/ldm/logs/ldm-mcidas.log
> /data/ldm/gempak/images/sat/\3/\5/IR/IR_\6_\7
> 
> I'd like to know if there is a way to configure my pqact.conf file to
> retrieve the higher temporal/spacial data that I found on the motherload
> site.

~ldm/etc/ldmd.conf is the file that gets configured to request data feeds.
~ldm/etc/<pattern_action_file> is the file that gets configured to process
the data received in data feeds.

> Specifically, it'd be nice to have the LDM pull in the 1km VIS
> imagery and 4km IR data from each GOES satellite.

Easily done.  Each GOES would mean GOES-East (GOES-12) and GOES-West (GOES-11).
GOES-10 data is not available in any IDD datastream... yet.

> If I'm not mistaken,
> the pqact entries above gave me 2 files per hour (~:15 & :45 past each
> hour) so I was still missing the data in between.

The pqact entries above gave you the images that are available in the UNIWISC
(aka MCIDAS) datastream.

> Is the 1km data even
> sent through the LDM and if so, could you possibly point me in the right
> direction as to what my ldmd.conf/pqact.conf entries should look like?

The 1 km VIS images are only available in the NIMAGE IDD datastream.  The
image sectors available in the UNIWISC feed (aka MCIDAS) are all 4 km in
resolution, and yes, they are only delivered twice-per-hour.  The NIMAGE
images are from the NOAAPort broadcast.  They are sent 4 times per hour.

What you need to do is twofold:

1) request images from the NIMAGE datastream.  This is done in your 
~ldm/etc/ldmd.conf
   file

2) setup appropriate actions to decode or file the images from the NIMAGE 
datastream

Since you are using GEMPAK, it would likely be best if you setup your LDM 
processing
of the NIMAGE data using actions recommended for GEMPAK.  Here is an example 
from
a machine running here at the UPC:

~ldm/etc/ldmd.conf:

EXEC    "pqact -f MCIDAS|NIMAGE /local/ldm/etc/pqact.gempak_images"
 ...

request NIMAGE ".*" upstream_feed_host

~ldm/etc/pqact.gempak_images entry to process NIMAGE data:

#
# NOAAPORT GINI Images in NIMAGE feed
NIMAGE  ^satz/ch[0-9]/.*/(.*)/([12][0-9])([0-9][0-9])([01][0-9])([0-3][0-9]) 
([0-2][0-9])([0-5][0-9])/(.*)/(.*km)/
        FILE    -close  data/gempak/images/sat/\8/\9/\1/\1_\2\3\4\5_\6\7


NOTE: pattern-action file entries require the user of tabs in various places.  
Cutting and
      pasting the above action into your pattern action file (e.g., 
pqact.gempak_images) will
      not result in a working entry!!

      - the whitespace between NIMAGE and ^sat is a tab
      - the whitespace before AND after FILE are tabs
      - the whitespace after -close is a tab

> Thanks,

No worries.


Cheers,

Tom
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Ticket Details
===================
Ticket ID: HXZ-780491
Department: Support Datastream
Priority: Normal
Status: Closed