20010824: where to find pnga2area

>From: Robert Leche <address@hidden>
>Organization: LSU
>Keywords: 200108242015.f7OKFI119991 ldm-mcidas pnga2area LDM

Bob,

>I am making some progress in adding products to the ldm decoders and
>having the products show up in the data directory. But I seem to have no
>luck with certain product types.
>
>Displaying Satellite and NIDS data in NMAP, NSAT and Garp4
>
>Inorder to decode images/sat/SOUNDER, images/sat/GOES-10, and
>images/sat/GOES-8 'trees', I found the following pqact.conf examples:
>
>#
>##########################################################################
>
># AREA files from Unidata/Wisconsin IDD feed
>##########################################################################
>
># UW Products except Mollweide IR and WV and Antarctic composite and
>floaters decoded
># into GEMPAK file hierarchy
>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
>.
>.
>.
>.
># CIMSS Total Column Precipitable Water - McIDAS product code CB
>MCIDAS  ^pnga2area Q0 CB .... (.*) (.*) (.*) (........) (....)
>        PIPE    -close
>        pnga2area /data/ldm/gempak/images/sat/SOUNDER/\3/PW/PW_\4_\5
>.
>.
>.
>(Many products in this list)
>
>
>I noted the decoder is pnga2area and I am unable to locate this decoder.
>Where do I get this decoder?

pnga2area is part of the ldm-mcidas package.  More information on ldm-mcidas
can be found in the LDM-MCIDAS web pages:

http://www.unidata.ucar.edu/packages/mcidas/mcidd/ldm-mcidas.html

Relevant links are:

Installation Instructions 
http://www.unidata.ucar.edu/packages/mcidas/mcidd/ldm-mcidas-install.html
  Download the software 
  http://www.unidata.ucar.edu/packages/mcidas/mcidd/ldm-mcidas-download.html

Binary distributions of ldm-mcidas are available for a large set of
platforms supported by Unidata.  If your machine is not on the list
of supported platforms, then you may need to build ldm-mcidas decoders
from source.  In this case, you would need to have McIDAS installed on
your workstation.  It is unlikely, however, that you have such a
platform.

>Also, I note the MCIDAS label. Do we need
>Mcidas installed to aquire this type of product with ldm?

No.  The LDM feed type is named MCIDAS since the imagery were
originally broadcast (in the Unidata-Wisconsin datastream, LDM feed
type MCIDAS) for use by McIDAS workstations.  GEMPAK can display a
subset of imagery that is supported by McIDAS.  All of the images in
the Unidata-Wisconsin datastream are included in this subset.

Tom Yoksas