Re: [thredds] handling of stacked GRIB files

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: Re: [thredds] handling of stacked GRIB files
• From: John Caron <caron@xxxxxxxxxxxxxxxx>
• Date: Wed, 19 Jun 2013 14:00:33 -0600

Hi Roy:

The time coordinate is derived from whats encoded in the GRIB record. It doesnt 
matter what the filename is.

John




On 6/17/2013 3:13 PM, Roy Mendelssohn - NOAA Federal wrote:
> Hi All:
> 
> In my tests on my test server, it appears that you handle in some fashion 
> stacked GRIB files, which usually arise if you have say a month's worth of 
> 6-hourly GRIB files and you say use the unix "cat" command to combine them 
> into one monthly file, which is still valid GRIB file.  My question is how 
> you handle time in those cases, since if I go by the file name it is only say 
> g201301  - so you only have the year and month.  Do you just assume that the 
> first file is at 0 offset and work you way along,  or do you get the time 
> from the stacked files?  The former will have problems if as is sometimes the 
> case, there are missed 6-hourly periods in the stack.
> 
> Thanks,
> 
> -Roy M.
> 
> 
> **********************
> "The contents of this message do not reflect any position of the U.S. 
> Government or NOAA."
> **********************
> Roy Mendelssohn
> Supervisory Operations Research Analyst
> NOAA/NMFS
> Environmental Research Division
> Southwest Fisheries Science Center
> 1352 Lighthouse Avenue
> Pacific Grove, CA 93950-2097
> 
> e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address)
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> 
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    • From: Roy Mendelssohn - NOAA Federal