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Re: catalog schema question: variable element

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  • Subject: Re: catalog schema question: variable element
  • Date: Wed, 09 Aug 2006 13:23:14 -0600
Hi Darren,

Darren Hardy wrote:
Ok, so I could use two <variables> elements to provide all these descriptions, like so: 

<variables vocabulary="CF-1.0">
<variable name="SST" vocabulary_name="sea_surface_temperature" units="degC"/> 
   <!-- Foobar omitted because it does not have a CF standard_name -->
</variables>

<variables vocabulary="human-readable">
<variable name="SST" vocabulary_name="OI Cloud-free SST, blah blah blah" units="degC"/> <variable name="Foobar" vocabulary_name="My foobar variable" units="m" /> 
</variables>
It looks like the catalog schema provides for multiple variables elements, so this would work for me.
Currently, the schema only allows one <variables> element per dataset. The schema defines it like this 

     <xsd:element ref="variables"/>
and the default for the minOccurs and maxOccurs attributes is one. So, I don't think a catalog with a <dataset> element that had two child <variables> elements would validate.
How are you planning on your catalog being used? Are you trying to feed this information into another system? 

Ethan

--
Ethan R. Davis                                Telephone: (303) 497-8155
Software Engineer                             Fax:       (303) 497-8690
UCAR Unidata Program Center                   E-mail:    address@hidden
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
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