Difference between revisions of "Data Usability (netCDF ACDD)"
From Earth Science Information Partners (ESIP)
| (9 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| + | The following NetCDF Attribute Convention for Data Discovery variable attributes are highly recommended for data usability. | ||
| + | |||
==ACDD variable attributes for Usability - Highly Recommended== | ==ACDD variable attributes for Usability - Highly Recommended== | ||
| − | + | <table width="95%" border="1" cellpadding="3" cellspacing="3" style="border-collapse: collapse;"><tr><th>Concept</th><th>Description</th><th>Dialect (Fit) Paths</th></tr><tr><td>Parameter Name (Standard)</td><td>The name of a parameter included in the resource from a standard vocabulary.</td><td style="word-break:break-all;"><b>ISO-1</b> /mdb:MD_Metadata/mdb:contentInfo/mrc:MD_CoverageDescription/mrc:attributeGroup/mrc:MD_AttributeGroup/mrc:attribute/*/mrc:name/mcc:MD_Identifier/mcc:code/gco:CharacterString<br><b>netCDF</b> /nc:netcdf/nc:variable/nc:attribute[@nc:name='standard_name']/@nc:value<br></td></tr><tr><td>Standard Name Vocabulary</td><td>The name of the shared vocabulary from which variable standard names are taken.</td><td style="word-break:break-all;"><b>ISO</b> /*/gmd:identificationInfo/*/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:thesaurusName/gmd:CI_Citation/gmd:title/gco:CharacterString<br><b>ISO-1</b> /mdb:MD_Metadata/mdb:identificationInfo/*/mri:descriptiveKeywords/mri:MD_Keywords[mri:type/mri:MD_KeywordTypeCode='theme']/mri:thesaurusName/cit:CI_Citation/cit:title/gco:CharacterString<br><b>netCDF</b> /nc:netcdf/nc:variable/attribute[@nc:name=standard_name_vocabulary]/@nc:value<br></td></tr><tr><td>Units</td><td>The units of the variables data values.</td><td style="word-break:break-all;"><b>ISO</b> /gmi:MI_Metadata/gmd:contentInfo/gmi:MI_CoverageDescription/gmd:dimension/gmd:MD_Band/gmd:units<br><b>ISO-1</b> /mdb:MD_Metadata/mdb:contentInfo/mrc:MD_CoverageDescription/mrc:attributeGroup/mrc:MD_AttributeGroup/mrc:attribute/mrc:MD_SampleDimension/mrc:units<br><b>netCDF</b> metadata/variables/variable@units/@nc:value<br></td></tr><tr><td>Coverage Content Type</td><td>An ISO 19115-1 code to indicate the source of the data</td><td style="word-break:break-all;"><b>ISO</b> /gmd:MD_Metadata/gmd:contentInfo/gmd:MD_CoverageDescription/gmd:contentType/gmd:MD_CoverageContentTypeCode<br><b>ISO-1</b> /mdb:MD_Metadata/mdb:contentInfo/mrc:MD_CoverageDescription/mrc:attributeGroup/mrc:MD_AttributeGroup/mrc:contentType/mrc:MD_CoverageContentTypeCode<br></td></tr></table> | |
| − | |||
| − | |||
| − | <table | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | </table> | ||
''xPath Note:'' The xPaths included in this table use several wildcards. // means | ''xPath Note:'' The xPaths included in this table use several wildcards. // means | ||
any path, so //gmd:CI_ResponsibleParty indicates a gmd:CI_ResponsibleParty anywhere | any path, so //gmd:CI_ResponsibleParty indicates a gmd:CI_ResponsibleParty anywhere | ||
| Line 46: | Line 13: | ||
''Fit:'' The fit of the dialect path with the concept is estimated on a scale of 1 | ''Fit:'' The fit of the dialect path with the concept is estimated on a scale of 1 | ||
= excellent two-way fit, 2 = one-way fit or some other problem, 3 - extension required. | = excellent two-way fit, 2 = one-way fit or some other problem, 3 - extension required. | ||
| − | |||
Latest revision as of 08:32, June 5, 2015
The following NetCDF Attribute Convention for Data Discovery variable attributes are highly recommended for data usability.
ACDD variable attributes for Usability - Highly Recommended
| Concept | Description | Dialect (Fit) Paths |
|---|---|---|
| Parameter Name (Standard) | The name of a parameter included in the resource from a standard vocabulary. | ISO-1 /mdb:MD_Metadata/mdb:contentInfo/mrc:MD_CoverageDescription/mrc:attributeGroup/mrc:MD_AttributeGroup/mrc:attribute/*/mrc:name/mcc:MD_Identifier/mcc:code/gco:CharacterString netCDF /nc:netcdf/nc:variable/nc:attribute[@nc:name='standard_name']/@nc:value |
| Standard Name Vocabulary | The name of the shared vocabulary from which variable standard names are taken. | ISO /*/gmd:identificationInfo/*/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:thesaurusName/gmd:CI_Citation/gmd:title/gco:CharacterString ISO-1 /mdb:MD_Metadata/mdb:identificationInfo/*/mri:descriptiveKeywords/mri:MD_Keywords[mri:type/mri:MD_KeywordTypeCode='theme']/mri:thesaurusName/cit:CI_Citation/cit:title/gco:CharacterString netCDF /nc:netcdf/nc:variable/attribute[@nc:name=standard_name_vocabulary]/@nc:value |
| Units | The units of the variables data values. | ISO /gmi:MI_Metadata/gmd:contentInfo/gmi:MI_CoverageDescription/gmd:dimension/gmd:MD_Band/gmd:units ISO-1 /mdb:MD_Metadata/mdb:contentInfo/mrc:MD_CoverageDescription/mrc:attributeGroup/mrc:MD_AttributeGroup/mrc:attribute/mrc:MD_SampleDimension/mrc:units netCDF metadata/variables/variable@units/@nc:value |
| Coverage Content Type | An ISO 19115-1 code to indicate the source of the data | ISO /gmd:MD_Metadata/gmd:contentInfo/gmd:MD_CoverageDescription/gmd:contentType/gmd:MD_CoverageContentTypeCode ISO-1 /mdb:MD_Metadata/mdb:contentInfo/mrc:MD_CoverageDescription/mrc:attributeGroup/mrc:MD_AttributeGroup/mrc:contentType/mrc:MD_CoverageContentTypeCode |
xPath Note: The xPaths included in this table use several wildcards. // means any path, so //gmd:CI_ResponsibleParty indicates a gmd:CI_ResponsibleParty anywhere in an XML file. /*/ indicates a single level with several possible elements. This usually indicates one of several concrete realizations of an abstract object. For example /*/gmd:identificationInfo could be gmd:MD_Metadata/gmd:identificationInfo or gmi:MI_Metadata/gmd:identificationInfo and gmd:identificationInfo//*/gmd:descriptiveKeywords could be gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords or gmd:identificationInfo/srv:SV_ServiceIdentification/gmd:descriptiveKeywords. Fit: The fit of the dialect path with the concept is estimated on a scale of 1 = excellent two-way fit, 2 = one-way fit or some other problem, 3 - extension required.
