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[THREDDS #SGV-570847]: AWS real time chunks

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  • Subject: [THREDDS #SGV-570847]: AWS real time chunks
  • Date: Thu, 04 Feb 2016 09:22:55 -0700
Bradley,

Here's the documentation for the realtime chunks: 
http://www.roc.noaa.gov/wsr88d/PublicDocs/ICDs/2620010E.pdf.

The quick summary of the format is:

[24-byte volume header (for first chunk of file only)][4-byte size of 
compressed data][BZ2 compressed data]

You may be able to use bunzip2 on the compressed data once you pop off the 
other bytes, but I'm not positive; otherwise you'll need to use a function 
that's capable of just handling a bz2-compressed block (no other file metadata)

Ryan

> Hi,
> 
> I've grabbed a sample file from the chunk data. I've included it here. I
> tried to read the data with numerous tools:
> IVD, netcdf-java, rsl, etc but no luck. Can you direct me to either code to
> fully uncompress this data or alternatively a
> fully documentation of the file.
> 
> Cheers,
> 
> Bradley Asztalos
> 
> 

Ticket Details
===================
Ticket ID: SGV-570847
Department: Support THREDDS
Priority: Normal
Status: Closed