Re: [thredds] NetCDF subsetting

Hi Kyle,

The CF standard is quite stable, the last change was a year ago, and
changes so far have been backward and forward compatible.

The CF standard name table changes more quickly but again version
compatibility is an important consideration.

Ethan

On 2/17/2010 12:19 PM, Kyle Shannon wrote:
> Are new versions quite frequent, or has the CF reached a fairly stable
> release?  I would like to use CF for a program, but if it changes
> frequently I may have issues. 
> 
> kss
[snip]
> 
> On Tue, Feb 16, 2010 at 4:45 PM, Ethan Davis <edavis@xxxxxxxxxxxxxxxx
> <mailto:edavis@xxxxxxxxxxxxxxxx>> wrote:
> 
>     Hi Kyle,
> 
>     The "earth_radius" attribute was added to CF in version 1.2 (May 2008).
>     The "spherical_earth_radius_meters" attribute pre-dates that CF version
>     and our GRIB reading code hasn't been updated to reflect that change.
> 
>     We'll get that fixed and give our GRIB to CF code another look. We'll
>     try to get any fixes on this into our next netCDF-java release (which
>     will hopefully be in the next few days). If they don't make it into that
>     release, they should be in the next one.
> 
>     Thanks,
> 
>     Ethan
> 
>     On 2/16/2010 1:31 PM, Kyle Shannon wrote:
>     > Is there any reason why the radius tag is:
>     "spherical_earth_radius_meters"
>     > instead of the CF-1.0 tag:
>     > "earth_radius"
>     > ?
[snip]



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