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[CF-metadata] CF Standards

From: Karl Taylor <taylor13>
Date: Wed, 23 Feb 2011 17:39:49 -0800

Should it matter if they are bounds variables or not? Certainly if they
are not, then the checker should not object to them being dimensionless
(since they have not be identified by a standard_name to require units).

Karl

On 2/23/11 10:17 AM, Jonathan Gregory wrote:
> Dear Karl et al
>
> To me it looks like the checker couldn't tell that they were bounds variables,
> because there is no bounds attribute pointing to them. They look like data
> variables.
>
> Best wishes
>
> Jonathan
>
> On Wed, Feb 23, 2011 at 09:48:21AM -0800, Karl Taylor wrote:
>> Date: Wed, 23 Feb 2011 09:48:21 -0800
>> From: Karl Taylor<taylor13 at llnl.gov>
>> User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US;
>> rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7
>> To: Kyle Olivo<Kyle.Olivo at noaa.gov>
>> CC: aparna Radhakrishnan<Aparna.Radhakrishnan at noaa.gov>,
>> "cf-metadata at cgd.ucar.edu"<cf-metadata at cgd.ucar.edu>, "Doutriaux,
>> Charles"<doutriaux1 at llnl.gov>
>> Subject: Re: [CF-metadata] CF Standards
>>
>> Hi all,
>>
>> If a, b, a_bnds, and b_bnds are dimensionless (and I think they
>> are), then CF should not raise an error that "no units attribute
>> set". Does anyone disagree?
>>
>> thanks,
>> Karl
>>
>> On 2/23/11 6:55 AM, Kyle Olivo wrote:
>>> Hi Charles,
>>>
>>> We recently CMORized the Amon variable clw and noticed that the output
>>> doesn't seem to adhere to CF standards.
>>>
>>>> double a_bnds(lev, bnds) ;
>>>> a_bnds:long_name = "vertical coordinate formula term:
>>>> a(k+1/2)" ;
>>>> double b_bnds(lev, bnds) ;
>>>> b_bnds:long_name = "vertical coordinate formula term:
>>>> b(k+1/2)" ;
>>>> double a(lev) ;
>>>> a:long_name = "vertical coordinate formula term: a(k)" ;
>>>> double b(lev) ;
>>>> b:long_name = "vertical coordinate formula term: b(k)" ;
>>> CF-Checker results:
>>>
>>>> ------------------
>>>> Checking variable: a
>>>> ------------------
>>>> ERROR (3.1): No units attribute set
>>>> ------------------
>>>> Checking variable: a_bnds
>>>> ------------------
>>>> ERROR (3.1): No units attribute set
>>>> ------------------
>>>> Checking variable: b
>>>> ------------------
>>>> ERROR (3.1): No units attribute set
>>>> ------------------
>>>> Checking variable: b_bnds
>>>> ------------------
>>>> ERROR (3.1): No units attribute set
>>> Any advice on how to proceed on this? Should a units value of some kinds
>>> have been included in the Amon MIP table?
>>>
>>> Thanks,
>>> Kyle
>>>
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Received on Wed Feb 23 2011 - 18:39:49 GMT

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