Re: [CF-metadata] CF Standards

2011-02-23 Thread Brian Eaton
Hi Karl, I agree with all your comments on this thread. In particular, the checker shouldn't complain that a, b, a_bnds, and b_bnds don't have units when it doesn't have any information that indicates they are dimensional quantities. As an aside though, I do think there would be value in having

Re: [CF-metadata] help

2011-02-23 Thread Karl Taylor
Hi all, I'm not sure about this. If you search the standard_names, you don't find any that include "count", do you? If not, then why does the CF checker even look at the units attribute. It can't know what the units should be. I suspect that the checker must raise an error whenever units

Re: [CF-metadata] CF Standards

2011-02-23 Thread Karl Taylor
This all looks correct to me. Karl On 2/23/11 10:59 AM, Kyle Olivo wrote: So I'm wondering whether the coordinate variable, lev(lev), has the standard_name and formula_terms attributes that should allow the checker to recognize them. From the file: double lev(lev) ;

Re: [CF-metadata] CF Standards

2011-02-23 Thread Karl Taylor
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

Re: [CF-metadata] CF Standards

2011-02-23 Thread Karl Taylor
I think it is wrong to add a "bounds" attribute to a formula term attached to a vertical coordinate. Only the coordinate itself should have a bounds attribute. The reason this seemed to fix the problem is presumably that the CF checker does not require (or look for?) units to be attached to b

[CF-metadata] Proposal for new standard names

2011-02-23 Thread Tomoo Ogura
Dear all, I'd like to propose the following two standard names, which conform to the existing pattens.They represent the tendency for the mass fraction of cloud condensed water in GCMs. Their units are in 1/s. We hope to use these variables in the Cloud Feedback Model Intercomparison Project (CFM

Re: [CF-metadata] CF Standards

2011-02-23 Thread Brian Eaton
Hi Kyle, This metadata looks correct to me. I think this is a CF Checker issue. It seems possible that it could be made to recognize variables that are associated with defining dimensionless vertical coordinates. There is some complexity though in that it would need special coordinate specific

Re: [CF-metadata] help

2011-02-23 Thread John Graybeal
Is it reasonable to have the checkers (and people) consider that any time the Counts modifer is used, that dimensionless or 1 becomes acceptable as the units? john On Feb 23, 2011, at 10:56, Lowry, Roy K. wrote: > Hi Karl, > > Christina's problem is because her usage of standard name modifier

Re: [CF-metadata] CF Standards

2011-02-23 Thread Kyle Olivo
So I'm wondering whether the coordinate variable, lev(lev), has the standard_name and formula_terms attributes that should allow the checker to recognize them. From the file: double lev(lev) ; lev:bounds = "lev_bnds" ; lev:units = "1" ; lev

Re: [CF-metadata] help

2011-02-23 Thread Lowry, Roy K.
Hi Karl, Christina's problem is because her usage of standard name modifier is changing the canonical units from those of the unmodified Standard Name. Only solutions I can see are either to omit the Standard Name from this channel or set up a new Standard Name for raw chorophyll as counts. Th

Re: [CF-metadata] CF Standards

2011-02-23 Thread Kyle Olivo
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" ;

Re: [CF-metadata] CF Standards

2011-02-23 Thread Brian Eaton
The checker also didn't recognize that the "a" and "b" variables are being used to describe a dimensionless vertical coordinate. So I'm wondering whether the coordinate variable, lev(lev), has the standard_name and formula_terms attributes that should allow the checker to recognize them. Brian

Re: [CF-metadata] CF Standards

2011-02-23 Thread Jonathan Gregory
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 09:48:2

Re: [CF-metadata] help

2011-02-23 Thread Karl Taylor
Hi Chritina, For dimensionless variables, you can either omit the units attribute or set it to "1". I don't understand why this error is raised. Did you assign a "standard_name" to CHL_count? If so, what did you assign? thanks, Karl On 2/23/11 6:48 AM, cristina.tronc...@artov.isac.cnr.it

Re: [CF-metadata] CF Standards

2011-02-23 Thread Karl Taylor
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 t

Re: [CF-metadata] CF and ISO19115

2011-02-23 Thread Nan Galbraith
I'm glad this discussion is open again - it's an important area for CF to be involved in. The geo-ide wiki is a useful reference, but there's not a lot of discussion there, and no clear opportunity to participate. Some of the mapping seems a little loose (e.g. NACDD summary is mapped to ISO abst

[CF-metadata] help

2011-02-23 Thread cristina . tronconi
Hello, I have a problem. iN MY NETCDF FILE I define the CHL_count variable. it is a dimensionless variable. I used the "standard name modifier: COUNT" for the variable CHL. for IT I define: units="1" as indicated in the Appendix C of the "cf-conventions1_4.pdf". but the cf checker gives me