Re: Another BUFR question

• To: Kevin Baggett <kevinb@xxxxxxxxxxxxx>
• Subject: Re: Another BUFR question
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Thu, 10 Aug 2006 15:57:14 -0600 (MDT)

actually, i remember that this can't be set acturately for all the fields, so i 
set it to the maximum for the fields using Pressure variable (0-7-4).  the idea 
was to give an estimate about the size, not the actual value.  the data size 
can be determine when the data is access using bufrdata.length after the data 
is obtained.

float[] bufrdata = bd.getFloatData();
size = bufrdata.length;

robb...



On Wed, 9 Aug 2006, Kevin Baggett wrote:

Robb,
I have put the following files on ftp.ssec.wisc.edu:/pub/incoming

MSG1-SEVI-MSGAMVE-0100-0100-20060715234500.000000000Z-135382.bfr and it's index 
file MSG1-SEVI-MSGAMVE-0100-0100-20060715234500.000000000Z-135382.bfr.bfx The 
index file says that wind speed and direction have a dimension of 11, but I 
have found it to only have a dimension of 5. In BufrIndexer.java, I see some 
code when writing out Section 3 that says:
if( bd.getVarCount() < 5 ) {
               ps.println( bd.getKey() +"\t"+ bd.getVarCount() +"\t"+
bd.isNumeric() +"\t"+ bd.getName() +"\t"+ bd.getUnits() );
               if (makeIndex) index.addParameter( bd.getKey(),
bd.getVarCount(),
                  bd.isNumeric(), bd.getName(), bd.getUnits() );
            } else {
               ps.println( bd.getKey() +"\t"+ maxLevelDim +"\t"+
bd.isNumeric() +"\t"+ bd.getName() +"\t"+ bd.getUnits() );
               if (makeIndex) index.addParameter( bd.getKey(),  maxLevelDim,
                  bd.isNumeric(), bd.getName(), bd.getUnits() );
            }
So, for dims greater than 5, it displays the maxLevelDim?? The file has a 
Pressure variable (0-7-4) and I think this is where the dimension is set, as 
that dimension is 11.
 else {
                   bd = (BufrData) bufrdatas.get( "0-7-4" );
                   //ps.println( "0-7-4 ="+ bd.getName() );
                   if( bd != null ) {
                      dim = bd.getVarCount();
                      maxLevelDim = dim;
                   } else {
                      dim = 1;
                      maxLevelDim = 1;
                   }
                }
Anyway, not sure what this all means.
The file above has the data for Atmospheric Motion Vectors derived from MSG.
Thanks!
Kevin

==============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx                   WWW: http://www.unidata.ucar.edu/
==============================================================================