[auscope-geosciml] GeoSciML Detection Limits

Bruce.Simons at csiro.au Bruce.Simons at csiro.au
Mon May 21 00:02:02 EDT 2012

Some time ago (2010)there was a discussion on specifying errors and detection limits at https://www.seegrid.csiro.au/wiki/CGIModel/GeochemicalAnalysesDiscussion:

4. Detection limits and analytical errors - how do we easily associate the analyte detection limit or analytical error defined in a session to the result for each analyte? Currently the result and the analytical error/detection limit have very different xpaths, and associating the two elements could be tricky. But if we use swe:Quantity to deliver both the Observation-Result and the Process-DetectionLimit then we could use a xlink:href pointer from Observation->result->DataRecord->Quantity->Quality->Quantity to the gml:id of the detection limit Quantity element (which is in Process->Acquisition->AnalyticalSession->ResultQualityDescription).

Does anyone recall if this was ever resolved?

Specifically I am after a way of encoding error ranges associated with laboratory results.

Ollie's example (on the same Wiki page) using DQ_QuantitativeResult has:

    <gmd:DQ_QuantitativeResult>    <!-- This class is very similar to swe:Quantity, but with a useful optional "errorStatistic" attribute  -->
         <gmd:valueUnit >
           <gml:UnitDefinition gml:id="ppm_Cu">
              <gml:name>parts per million</gml:name>
               <gco:CharacterString>2 sigma</gco:CharacterString>
                 <gml:measure uom="ppm">0.5</gml:measure>

The problem with this example is that it only allows one gmd:errorStatistic, whereas I want to include a lower and upper value.
I have not found any instance documents which provide examples of how to do this. Has anyone else played in this space?


Bruce Simons
SDI Information Modeller
Land and Water/ Environmental Information Systems
E bruce.simons at csiro.au T +61 3 9252 6514 M +61 429 177155
PO Box 56, Highett, Victoria, 3190
www.csiro.au | www.csiro.au/science/Environmental-Information-Systems

The information contained in this email may be confidential or privileged. Any unauthorised use or disclosure is prohibited. If you have received this email in error, please delete it immediately and notify the sender by return email. Thank you. To the extent permitted by law, CSIRO does not represent, warrant and/or guarantee that the integrity of this communication has been maintained or that the communication is free of errors, virus, interception or interference.
Please consider the environment before printing this email.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opengeospatial.org/pipermail/geosciml/attachments/20120521/521c8b02/attachment.htm>

More information about the GeoSciML mailing list