[CF-metadata] Add new integer types to CF?

Signell, Richard rsignell at usgs.gov
Fri Sep 22 10:55:18 MDT 2017


I suggested

_Unsigned = "true"

because that is  already supported by Unidata:



@Unidata: are you guys are you going to chime in on this?

On Fri, Sep 22, 2017 at 12:40 PM, Charlie Zender <zender at uci.edu> wrote:
> _Unsigned = "true" is cleaner and clearer to me
> than the valid_* attributes.
> To me, Rich's suggestion requires a consensus
> to _drop_ valid_* in CF 1.8, and instead make
> _Unsigned the preferred workaround for file formats
> that do not support unsigned types.
> Unless people want to require _both_
> _Unsigned and valid_* (seems burdensome to me),
> or allow either _Unsigned or valid_* (seems
> crufty to me). What do others think?
> On 9/22/17 04:49, Signell, Richard wrote:
>> lookin at the NUG, how about saying:
>> In file types that don't offer native support for unsigned types,
>> integer or byte variables that are to be interpreted as unsigned must
>> have the attribute _Unsigned = "true".
> --
> Charlie Zender, Earth System Sci. & Computer Sci.
> University of California, Irvine 949-891-2429 )'(

Dr. Richard P. Signell   (508) 457-2229
USGS, 384 Woods Hole Rd.
Woods Hole, MA 02543-1598

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