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Re: New Client Reply - [netCdfJava !KPD-807934]: netCDF Java - Bufr.jar and executing netcdf java program

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  • Subject: Re: New Client Reply - [netCdfJava !KPD-807934]: netCDF Java - Bufr.jar and executing netcdf java program
  • Date: Wed, 13 Dec 2006 14:05:56 -0700 (MST)
On Tue, 12 Dec 2006, James Wong wrote:

> New Client Reply: netCDF Java - Bufr.jar and executing netcdf java program
>
> Dear Robb,
>
> I have run my NOAA bufr data through the bufr decoder provided by
> Unidata and the results look good.
> I have one question regarding the data, does the current code provide
> a way to iterate through blocks of
> lat/long data.

James,

one can do it for non-compressdata because the lat/lon are in the index
file in fields 5-6. for every observation.  in the compressdata it's not
possible because only the first lat/lon for the group of data.  look at
the doc IndexFormat.txt in the root distribution directory. run the
following index command on a dataset:

% java -Xmx256m ucar/bufr/BufrIndexer <input bufr file>

type = BUFR
bufr_edition = 3
location = /home/rkambic/code/bufr/data/IUA_CWAO_20060202_12.bufr
length = 56282
created = 2006-05-23T14:41:00Z
index_version = 1.1
header = IUAA01 CWAO 021159
reference_time = 2006-02-02T11:54:00Z
center_id = 53 Montreal (RSMC)
sub_center_id = 0 WMO Secretariat
category = 4 Single level upper-air data (other than satellite)
table = B3M-000-009
compressdata = false
--------------------------------------------------------------------
CNJDA116 2006-02-02T11:54:00Z 1 43.73667 -79.515 730 58 86 0 0
CNJDA116 2006-02-02T11:55:00Z 1 43.71 -79.55334 510 58 131 5 4
CNJDA116 2006-02-02T11:56:00Z 1 43.68667 -79.58667 290 58 175 2 0
...
...


It seems currently all the data is returned, I would
> like to  be able to distinguish between individual
> weather data cells. If this feature exists in the code, can you show
> me how to use it?
>
> Thanks,
> James
>
>
> On Nov 21, 2006, at 12:05 PM, Unidata netCDF Java Support wrote:
>
> > James,
> >
> > the BUFR decoder is released in beta mode, haven't had time to work
> > on it in mouths. it's located at:
> >
> > ftp://ftp.unidata.ucar.edu/pub/decoders
> >
> > name bufr-decoder-java_1.0.00.tar.gz
> >
> > i would appreciate any comments/bugs that you find in the decoders.
> > currently the nj22 library has only been configured to read a small
> > subset of the BUFR products, ie profiles, airline reports, and
> > some satellite sounds.
> >
> > robb....
> >
> > Ticket Details
> > ===================
> > Ticket ID: KPD-807934
> > Department: Support netCDF Java
> > Priority: High
> > Status: Open
> >
> >
>
>
>
> Ticket Details
> ===================
> Ticket ID: KPD-807934
> Department: Support netCDF Java
> Priority: High
> Status: Open
> Link: 
> http://www.unidata.ucar.edu/esupport/staff/index.php?_m=tickets&_a=viewticket&ticketid=2528
>

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