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From "Martin Desruisseaux (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SIS-361) NetCDF to ISO 19115:2014 mapping
Date Sat, 03 Jun 2017 10:28:04 GMT
Martin Desruisseaux created SIS-361:
---------------------------------------

             Summary: NetCDF to ISO 19115:2014 mapping
                 Key: SIS-361
                 URL: https://issues.apache.org/jira/browse/SIS-361
             Project: Spatial Information Systems
          Issue Type: Task
          Components: Storage
    Affects Versions: 0.7, 0.6, 0.5
            Reporter: Martin Desruisseaux


The {{org.org.apache.sis.storage.netcdf.AttributeNames}} class defines a mapping from NetCDF
attributes to ISO 19115:2003 metadata. This mapping is defined by the following file:

* https://github.com/Unidata/threddsIso/blob/master/src/main/resources/xsl/nciso/UnidataDD2MI.xsl

However as of June 2017, this file seems to have been defined for a mapping to the 2003 version
of ISO 19115. A mapping to the ISO 19115 revision published in 2014 could make some difference.
This task enumerate some possible changes. Ideally, those changes should be submitted to the
UCAR community. Whether Apache SIS should apply them on its own or not is an open question.

h2. ACDD {{history}} attribute
The NetCDF {{history}} attribute is documented as "Provides an audit trail for modifications
to the original data". It is currently indirectly mapped to data quality information, which
is defined in ISO 19115 as "overall assessment of quality of a resource(s)":

{noformat}
Metadata.dataQualityInfo.lineage.statement = $history
Metadata.dataQualityInfo.scope.level = dataset
{noformat}

Since ISO 19115:2014, we could use the following instead. Documentation said "Information
about the provenance, sources and/or the production processes applied to the resource", which
seems more appropriate:

{noformat}
Metadata.resourceLineage.statement = $history
{noformat}




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