20021022: Running dcuair

>From: "Kwan-yin Kong" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200210222222.g9MMMHp21301

>To Steve / GEMPAK support:
>
>      Lately, I obtained some rawinsonde data in ASCII 
>format and would like to running the decoder "dcuair" to 
>convert them to gempak files.  I ran dcuair as suggested 
>in the GEMPAK manual with the -c option plus the date and 
>outfile < infile.  However, the program stopped almost 
>immediately and reported that 'The buffer has overflowed, 
>no end of bulletin'.  I still don't understand what this 
>message is about, and would appreciate some help.  The 
>following is a print-out of the entire error message.
>
>[10919] 021022/1807 [DC 3]  Starting up.
>[10919] 021022/1807 [DC -7]  The buffer has overflowed, no 
>end of bulletin.
>[10919] 021022/1807 [DC 5]  Normal termination.
>[10919] 021022/1807 [DC 2]  Number of bulletins read and 
>processed: 5
>[10919] 021022/1807 [DC 6]  Shutting down.
>
>Thanks for any inputs on this issue.
>
>Kwan-yin Kong
>City College of New York
>


Kwan-yin,

It sounds like your data is missing the necessary control characters
used in the normal transmission of the upper air data.

In the real-time data stream you will find sequences beginning with
^A \r \r \n 
and the product ends with 
\r \r \n ^C

or 

ZCZC
and ending with
NNNN


If your archived data has these characaters stripped out, then you would have to
recreate them, such as is described in:
http://www.unidata.ucar.edu/projects/coohl/mhonarc/MailArchives/gempak/msg03578.html

See if your data looks like that described in the archived message above,
and if so, add the ZCZC and NNNN sequences as described.

Steve Chiswell