[esip-semantictech] http://cfconventions.org/

[AZ Stephen Richard]

There's a big problem with
http://cfconventions.org/Data/cf-standard-names/70/build/cf-standard-name-ta
ble.html, it doesn't seem to provide URIs for the variables, and the
engineering to resolve the uri's.  Am I missing something?

steve

-----Original Message-----
From: esip-semanticweb <esip-semanticweb-bounces at lists.esipfed.org> On
Behalf Of Mcgibbney, Lewis J (172B) via esip-semanticweb
Sent: Tuesday, January 14, 2020 3:34 PM
To: esip-semanticweb at lists.esipfed.org
Subject: Re: [esip-semantictech] NASA GCMD Keywords Version 9.0 Released
(2019-11-12)

Hi Tyler,
    
> Regarding the measurement keywords, the EOSDIS data centers needed a more
fine-grained list of specific measurements
(e.g.atmosphere_absorption_optical_thickness_due_to_black_carbon_ambient_aer
osol_at_532nm) than the science keywords offered.

It appears to me that the correct place for this is in the CF Conventions...
which has a hugely active community for exactly this kind of thing.
Actually, if you look at the current CFConventions standard name table, you
can already find
atmosphere_absorption_optical_thickness_due_to_black_carbon_ambient_aerosol.
.. try it out
http://cfconventions.org/Data/cf-standard-names/70/build/cf-standard-name-ta
ble.html

> The recommendation for this was put forward in an ESO review

This is concerning

> approved by ESDIS,

This is even more concerning... why wasn't guidance issued to use
CFConventions?

> and there is a preliminary list of 100 measurements. 

... there are thousands of existing, well defined variables measured in
CFConventions. Why start a new list in GCMD?

> We plan to put forward additional measurement keywords in an upcoming 
> keyword release,  and we can add interested folks
    here in that review. The measurement keywords specifically support the
NASA UMM Variables Model (UMM-Var) evolution which has a field called
'MeasurementName' that  allows metadata curators to provide community
sourced names to further describe variable
    data.

I understand that other variable names can be used in UMM, namely
CFConventions. Thanks for pointing that out.

Lewis

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