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<p>I'm curious whether the ESIP semantic community has any opinions
on these two controlled vocabularies. <br>
</p>
<p>One question I have is why a measurement keyword list was
necessary when GCMD already has the science keywords (a source for
the original SWEET). i.e. why not integrate measurements (which
are represented as variables in the science keywords) into the
science keywords?</p>
<p><br>
</p>
<p>the data format list is even more perplexing to me. "incidence
angle file" is a format? Georeferenced TIFF in addition to
GeoTIFF? DV? (digital value?) is a format? KML as well as OGC
KML? ASCII and text (what about unicode?) DEM, if this refers to
digital elevation models with a .DEM extension from USGS, are
ASCII files. </p>
<p><br>
</p>
<p>Many formats are subtypes of other formats listed. Wouldn't a
better approach be to list the <i>encodings</i> (a much smaller
list, which would tell users how to read the data with software)
and then add the conventions that have been applied (e.g. CF for
netCDF or GRIB for binary). For the encodings list, why not start
with mime types?<br>
</p>
<p><br>
</p>
<p>sjs<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 11/12/19 5:00 PM, Stevens, Tyler B.
(GSFC-423.0)[Stinger Ghaffarian Technologies] via esip-semanticweb
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:SN4PR0901MB21917E6D4DA678B6806E09D9CF770@SN4PR0901MB2191.namprd09.prod.outlook.com">
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<b style="font-weight:normal">
<p dir="ltr" style="line-height:1.38; margin-right: 9pt;
text-align: justify; margin-top:0pt; margin-bottom:0pt">
<span style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400">The NASA Global Change Master Directory
(GCMD) staff is pleased to announce the release of the GCMD
keywords version 9.0. Version 9.0 consists of two new
keyword schemes: (1) Measurement Name and (2) Granule Data
Format. </span></p>
<br>
<p dir="ltr" style="line-height:1.38; margin-right: 9pt;
text-align: justify; margin-top:0pt; margin-bottom:0pt">
<span style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400">The
</span><a
href="https://gcmdservices.gsfc.nasa.gov/kms/concepts/concept_scheme/MeasurementName/?format=csv"
moz-do-not-send="true"><span style="font-size:12pt;
font-family:Arial; color:#1155cc; font-weight:400;
text-decoration:underline; text-decoration-skip-ink:none">Measurement
Name</span></a><span style="font-size:12pt;
font-family:Arial; color:#000000; font-weight:400"> list is
a preliminary set of (~100) keywords that represent an
observable property, usually geophysical, geo-biophysical,
physical, or chemical. The
</span><a
href="https://gcmdservices.gsfc.nasa.gov/kms/concepts/concept_scheme/GranuleDataFormat/?format=csv"
moz-do-not-send="true"><span style="font-size:12pt;
font-family:Arial; color:#1155cc; font-weight:400;
text-decoration:underline; text-decoration-skip-ink:none">Granule
Data Format</span></a><span style="font-size:12pt;
font-family:Arial; color:#000000; font-weight:400"> list of
keywords represent the format of the data that is
distributed by the data center. </span></p>
<p dir="ltr" style="line-height:1.38; margin-right: 9pt;
text-align: justify; margin-top:12pt; margin-bottom:12pt">
<span style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400">The keywords help facilitate the
classification and discovery of Earth Science data by
providing a rich vocabulary for characterizing the data. The
GCMD keywords are used by hundreds of data providers
worldwide for categorizing the ~33,000 records stored in the</span><a
href="http://earthdata.nasa.gov/cmr" moz-do-not-send="true"><span
style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400; text-decoration:underline;
text-decoration-skip-ink:none">
</span><span style="font-size:12pt; font-family:Arial;
color:#1155cc; font-weight:400; text-decoration:underline;
text-decoration-skip-ink:none">Common Metadata Repository</span></a><span
style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400">.</span></p>
<span style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400">For more information about the keywords and
how to access them, please visit the</span><a
href="https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords"
moz-do-not-send="true"><span style="font-size:12pt;
font-family:Arial; color:#000000; font-weight:400">
</span><span style="font-size:12pt; font-family:Arial;
color:#1155cc; font-weight:400; text-decoration:underline;
text-decoration-skip-ink:none">Keyword Landing Page.</span></a><span
style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400"> Questions about the keywords can be
submitted to </span><a
href="mailto:support@earthdata.nasa.gov"
moz-do-not-send="true"><span style="font-size:12pt;
font-family:Arial; color:#1155cc; font-weight:400;
text-decoration:underline; text-decoration-skip-ink:none">support@earthdata.nasa.gov</span></a><span
style="font-size:12pt; font-family:Arial; color:#1155cc;
font-weight:400">
</span><span style="font-size:12pt; font-family:Arial;
color:#000000; font-weight:400">or directed to Valerie Dixon
at
</span><span style="font-size:12pt; font-family:Arial;
color:#1155cc; font-weight:400"><a class="moz-txt-link-abbreviated" href="mailto:valerie.dixon@nasa.gov">valerie.dixon@nasa.gov</a></span><span
style="font-size:12pt; font-family:Arial; color:#000000;
font-weight:400">.</span></b>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Siri-Jodha Singh KHALSA, Ph.D., SMIEEE
National Snow and Ice Data Center
University of Colorado
Boulder, CO 80309-0449 Phone: 1-303-492-1445 GV: 1-303-736-9976
<a class="moz-txt-link-freetext" href="http://cires.colorado.edu/~khalsa">http://cires.colorado.edu/~khalsa</a>
<a class="moz-txt-link-freetext" href="http://orcid.org/0000-0001-9217-5550">http://orcid.org/0000-0001-9217-5550</a>
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