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bermud / oostethys

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Units of Measure #17

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
OOSTethys has been using CF canonical units of measure.
http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/11/stan
dard-name-table
IOOS DIF is using (I think udunits Unidata).  I think that SWE demands the
use of Unified Code for Units of Measure http://unitsofmeasure.org/  (UCUM)
 We should decide on converge on one of these standards in the Toolkits

Original issue reported on code.google.com by eric.bri...@gmail.com on 9 Apr 2009 at 6:04

GoogleCodeExporter commented 8 years ago 
It is my understanding that using the CF terms also forces use of whatever 
units are
defined withing those terms.  That is what the standard-name-table seems to 
show,
also (for example, air_pressure units are Pa- no flexibility there).  IMO, this 
is a
big negative for CF, since it will require multiple terms for every unit to be
supported.  If I am missing something, please correct me.

Thanks,
T

Original comment by TheRest...@gmail.com on 20 May 2009 at 4:26

GoogleCodeExporter commented 8 years ago 
From Tony's email - Fri, May 1, 2009 at 12:03 PM

Encoding example:

<swe:uom> does not directly include a codespace attribute, but there does 
appear to
be a couple of ways to point to the definition.  Not sure exactly the best way 
or how
it will work, but here is the structure:

    <swe:uom code="cm" xlink:href="might_could_use_this"">
       <gml:UnitDefinition gml:id="databaseHandleIfAvailable">
           <gml:name codeSpace=""></gml:name>
           <gml:quantityType></gml:quantityType>
           <gml:catalogSymbol codeSpace=""/>
        </gml:UnitDefinition>
    </swe:uom>

Original comment by ber...@gmail.com on 26 May 2009 at 7:47

GoogleCodeExporter commented 8 years ago 
A working group is being created by MMI to work on this issue

Original comment by ber...@gmail.com on 27 May 2009 at 6:25