<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 11pt; color: #000000"><div>Hi all,</div><div><br data-mce-bogus="1"></div><div>FWIW As indicated in that same CF FAQ page, the MMI ORR also maintains an RDF representation of the CF Standard Names vocab:</div><div> https://mmisw.org/ont/cf/parameter</div><div>of course with every definition having its own URI.</div><div>As also indicated there, MMI also developed a CF Standard name "browser":</div><div> https://mmisw.org/cfsn/</div><div>which also resolves CF mappings between the MMI ORR and NERC vocabs, see e.g.:</div><div><span data-mce-type="bookmark" id="mce_1_start" data-mce-style="overflow:hidden;line-height:0px" style="overflow:hidden;line-height:0px"> https://mmisw.org/cfsn/#/age_of_sea_ice</span></div><div><span data-mce-type="bookmark" data-mce-style="overflow:hidden;line-height:0px" style="overflow:hidden;line-height:0px"><br data-mce-bogus="1"></span></div><div data-marker="__SIG_PRE__">Carlos</div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"esip-semanticweb" <esip-semanticweb@lists.esipfed.org><br><b>To: </b>"Parsons, Mark" <parsom3@rpi.edu>, "Mcgibbney, Lewis J" <lewis.j.mcgibbney@jpl.nasa.gov><br><b>Cc: </b>"esip-semanticweb" <esip-semanticweb@lists.esipfed.org><br><b>Sent: </b>Tuesday, January 14, 2020 7:35:42 PM<br><b>Subject: </b>Re: [esip-semantictech] http://cfconventions.org/<br></blockquote></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><p>Hey folks, <br>
</p>
<p>I think CF does have valid URIs hosted at the NERC Vocabulary
Server: <span style="color:rgb( 51 , 51 , 51 );font-family:'helvetica neue' , 'helvetica' , 'arial' , sans-serif;font-size:14px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb( 255 , 255 , 255 );display:inline !important;float:none"><a href="http://vocab.nerc.ac.uk/collection/P07/current/" target="_blank" rel="nofollow noopener noreferrer">http://vocab.nerc.ac.uk/collection/P07/current/</a></span></p>
<p><span style="color:rgb( 51 , 51 , 51 );font-family:'neue font-style' 'normal';font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb( 255 , 255 , 255 );display:inline !important;float:none">It's mentioned here: </span><br>
<span style="color:rgb( 51 , 51 , 51 );font-family:'neue font-style' 'normal';font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb( 255 , 255 , 255 );display:inline !important;float:none"><a href="http://cfconventions.org/faq.html#what-tools-exist-to-work-with-standard-names" target="_blank" rel="nofollow noopener noreferrer">http://cfconventions.org/faq.html#what-tools-exist-to-work-with-standard-names</a><br>
</span></p>
<p>cheers, Adam<br>
</p>
<p><br>
<span style="color:rgb( 51 , 51 , 51 );font-family:'neue font-style' 'normal';font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb( 255 , 255 , 255 );display:inline !important;float:none"></span></p>
<div class="moz-cite-prefix">On 1/14/20 10:20 PM, Parsons, Mark via
esip-semanticweb wrote:<br>
</div>
<blockquote>
<pre class="moz-quote-pre">Agreed. A name without a persistent, unique, registered, and resolvable identifier (a PURRI? :-)) is of limited value in today’s world.
I might argue that sorting out the issues of persistence, uniqueness, registration, and resolvability could drive greater consensus on what a term like ‘atmosphere_absorption_optical_thickness_due_to_black_carbon_ambient_aer’ actually means. Those who care about the term should maintain the term and make it open broadly.
This means that we will never have a master list. We will have multiple lists that at times conflict. But if we can reference our ambiguity precisely, we can better sort out the differences and tell our machines to do the same.
yours in abstraction,
-m.
</pre>
<blockquote>
<pre class="moz-quote-pre"> osol_at_532nm)
</pre>
</blockquote>
<pre class="moz-quote-pre"></pre>
<blockquote>
<pre class="moz-quote-pre">On 14 Jan 2020, at 17:47, Mcgibbney, Lewis J (172B) via esip-semanticweb <a href="mailto:esip-semanticweb@lists.esipfed.org" target="_blank" rel="nofollow noopener noreferrer"><esip-semanticweb@lists.esipfed.org></a> wrote:
Your absolutely correct Stephen. It doesn't. But I really think that if URI's are the sole driver behind GCMD replicating all of this work, then URI's should be added to CFConventions.
Excellent point Stephen.
Lewis
On 1/14/20, 2:41 PM, "AZ Stephen Richard" <a href="mailto:smrtucson@gmail.com" target="_blank" rel="nofollow noopener noreferrer"><smrtucson@gmail.com></a> wrote:
There's a big problem with
<a href="http://cfconventions.org/Data/cf-standard-names/70/build/cf-standard-name-ta" target="_blank" rel="nofollow noopener noreferrer">http://cfconventions.org/Data/cf-standard-names/70/build/cf-standard-name-ta</a>
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 <a href="mailto:esip-semanticweb-bounces@lists.esipfed.org" target="_blank" rel="nofollow noopener noreferrer"><esip-semanticweb-bounces@lists.esipfed.org></a> On
Behalf Of Mcgibbney, Lewis J (172B) via esip-semanticweb
Sent: Tuesday, January 14, 2020 3:34 PM
To: <a href="mailto:esip-semanticweb@lists.esipfed.org" target="_blank" rel="nofollow noopener noreferrer">esip-semanticweb@lists.esipfed.org</a>
Subject: Re: [esip-semantictech] NASA GCMD Keywords Version 9.0 Released
(2019-11-12)
Hi Tyler,
</pre>
<blockquote>
<pre class="moz-quote-pre">Regarding the measurement keywords, the EOSDIS data centers needed a more
</pre>
</blockquote>
<pre class="moz-quote-pre"> 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
<a href="http://cfconventions.org/Data/cf-standard-names/70/build/cf-standard-name-ta" target="_blank" rel="nofollow noopener noreferrer">http://cfconventions.org/Data/cf-standard-names/70/build/cf-standard-name-ta</a>
ble.html
</pre>
<blockquote>
<pre class="moz-quote-pre">The recommendation for this was put forward in an ESO review
</pre>
</blockquote>
<pre class="moz-quote-pre"> This is concerning
</pre>
<blockquote>
<pre class="moz-quote-pre">approved by ESDIS,
</pre>
</blockquote>
<pre class="moz-quote-pre"> This is even more concerning... why wasn't guidance issued to use
CFConventions?
</pre>
<blockquote>
<pre class="moz-quote-pre">and there is a preliminary list of 100 measurements.
</pre>
</blockquote>
<pre class="moz-quote-pre"> ... there are thousands of existing, well defined variables measured in
CFConventions. Why start a new list in GCMD?
</pre>
<blockquote>
<pre class="moz-quote-pre">We plan to put forward additional measurement keywords in an upcoming
keyword release, and we can add interested folks
</pre>
</blockquote>
<pre class="moz-quote-pre"> 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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