Adding the appropriate bounds attribute removes the errors for variables
a_bnds, b_bnds (though now it displays info regarding non-standard
usage), but still flags the lack of units in a and b as an error.
New metadata:
> double a(lev) ;
> a:bounds = "a_bnds" ;
> a:long_name = "vertical coordinate formula term: a(k)" ;
> double a_bnds(lev, bnds) ;
> a_bnds:long_name = "vertical coordinate formula term:
> a(k+1/2)" ;
CF-Checker output:
> ------------------
> Checking variable: b
> ------------------
> INFO: attribute 'bounds' is being used in a non-standard way
> ERROR (3.1): No units attribute set
>
> ------------------
> Checking variable: b_bnds
> ------------------
>
> ------------------
- Kyle
On 02/23/2011 01:17 PM, 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
>>>
>> _______________________________________________
>> CF-metadata mailing list
>> CF-metadata at cgd.ucar.edu
>> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
--
Kyle Olivo
Modeling Services Group
Geophysical Fluid Dynamics Lab
o: 609-452-5316 | c: 541-450-9010
Received on Wed Feb 23 2011 - 11:34:56 GMT
