[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20040917: ACARS data in GEMPAK format

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: 20040917: ACARS data in GEMPAK format
  • Date: Fri, 17 Sep 2004 15:20:52 -0600
Donna,

All the ACARS data are now using the header that the second line will match.
The dcgunzip script can be copied from $NAWIPS/bin/scripts/dcgunzip
which is a wrapper for your system's gunzip command to process
the data from a pipe to an output file with logging.

Steve Chiswell


>From: address@hidden
>Organization: UCAR/Unidata
>Keywords: 200409172040.i8HKeqnJ011695

>We have been having trouble receiving the ACARS data in GEMPAK format.
>I think our connection to FSL is OK because we receive ACARS files
>raw and unzipped.  The latest pqact.gempak file I have recommends
>
># FSL ACARS data
>#       Use -b 30 for NN as 30 minute
>PCWS    ^FSL\.NetCDF\.ACARS\.QC
>        PIPE    -close  decoders/dcacars
>        -e GEMTBL=/lsw/wea/gempak572p2/gempak/tables
>        -l data/gempak/logs/dcacars.log data/gempak/acars/YYYYMMDDHH_acars.gem
>#
>PCWS    ^FSL\.CompressedNetCDF\.MADIS\.acars\.
>        PIPE    -close  decoders/dcgunzip decoders/dcacars
>        -e GEMTBL=/lsw/wea/gempak572p2/gempak/tables
>        -l data/gempak/logs/dcacars.log data/gempak/acars/YYYYMMDDHH_acars.gem
>
>The first command does not work for me at all.  I get nothing.  The
>system bawks at the second one because there is no dcgunzip file
>in the decoders directory.  Is this just plain old gunzip from
>Linux?  I think we have the latest version of GEMPAK.  
>
>Donna Tucker                      1475 Jayhawk Blvd.
>Associate Professor               213 Lindley Hall 
>address@hidden                     Department of Geography
>(785) 864-4738                            University of Kansas                
>  
>(785) 864-5378 (fax)               Lawrence, KS  66045-7613                   
>  
>
--
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publicly available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.