Ndp at 22:31, 7 March 2012

2012-03-07T22:31:08Z

← Older revision		Revision as of 22:31, 7 March 2012
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	Here's an NcML file that will take the tried and true ''COADS Climaology'' file and add enough metadata for the WCS service to build a valid coverage:		Here's an NcML file that will take the tried and true ''COADS Climaology'' file and add enough metadata for the WCS service to build a valid coverage:
	<~~pre~~>		<font size="2">
			<source lang="xml">
	<?xml version="1.0" encoding="UTF-8"?>		<?xml version="1.0" encoding="UTF-8"?>
	<netcdf location="/data/nc/coads_climatology.nc" xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2">		<netcdf location="/data/nc/coads_climatology.nc" xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2">
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	</netcdf>		</netcdf>

	</~~pre~~>		</source>
			</font>

	Here's a note from Benno about using UDD metadata in place of the cumbersome ''WcsMetadata'' element:		Here's a note from Benno about using UDD metadata in place of the cumbersome ''WcsMetadata'' element:

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2011-12-22T21:54:07Z

Created page with "A work in progress that is not little more than notes. Here's an NcML file that will take the tried and true ''COADS Climaology'' file and add enough metadata for the WCS servic..."

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A work in progress that is not little more than notes.

Here's an NcML file that will take the tried and true ''COADS Climaology'' file and add enough metadata for the WCS service to build a valid coverage:
<pre>
<?xml version="1.0" encoding="UTF-8"?>
<netcdf location="/data/nc/coads_climatology.nc" xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2">

<attribute type="Structure" name="NC_GLOBAL">
<attribute type="String" name="Conventions" value="CF-1.0"/>
</attribute>


<attribute name="WcsMetadata" type="OtherXML">
<Domain xmlns="http://www.opengis.net/wcs/1.1" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:gml="http://www.opengis.net/gml">
<SpatialDomain>
<ows:BoundingBox crs="urn:ogc:def:crs:EPSG::4326">
<ows:LowerCorner>0 -90</ows:LowerCorner>
<ows:UpperCorner>360 90</ows:UpperCorner>
</ows:BoundingBox>
</SpatialDomain>
<TemporalDomain>
<TimePeriod>
<BeginPosition>2002-07-01T09:00/15:00</BeginPosition>
<EndPosition>2002-07-31T15:00/21:00</EndPosition>
<TimeResolution>6 hours</TimeResolution>
</TimePeriod>
</TemporalDomain>
</Domain>

</attribute>

<variable name="SST">
<variable name="COADSX">
<attribute name="standard_name" type="String" value="longitude"/>
</variable>

<variable name="COADSY">
<attribute name="standard_name" type="String" value="latitude"/>
</variable>

<variable name="TIME">
<attribute name="standard_name" type="String" value="time"/>
</variable>
</variable>

<variable name="AIRT">
<variable name="COADSX">
<attribute name="long_name" type="String" value="longitude"/>
</variable>

<variable name="COADSY">
<attribute name="long_name" type="String" value="latitude"/>
</variable>

<variable name="TIME">
<attribute name="long_name" type="String" value="time"/>
</variable>
</variable>

</netcdf>

</pre>

Here's a note from Benno about using UDD metadata in place of the cumbersome ''WcsMetadata'' element:
<blockquote>
UDD is my abbreviation, actually you need to say "Unidata Dataset Discovery v1.0", which is far longer than I will ever remember.
<br>
The conventions registry is at http://xml.opendap.org/ontologies/NetcdfConventionRegistry.owl

which connects the ontology files describing the conventions to the strings that identify the convention in the Conventions tag
<br>
We have an example of using UDD.
http://test.opendap.org:8090/ioos/mday_joinExist.ncml
which has metadata that expands to
http://iridl.ldeo.columbia.edu/cgi-bin/view/browse2.pl?node=http%3A%2F%2Ftest.opendap.org%3A8090%2Fioos%2Fmday_joinExist.ncml&repository=opendap1-owl

Benno
</blockquote>

WCS Tutorial on Serving Data - Revision history

Ndp at 22:31, 7 March 2012

Jimg: Created page with "A work in progress that is not little more than notes. Here's an NcML file that will take the tried and true ''COADS Climaology'' file and add enough metadata for the WCS servic..."