Difference between revisions of "Attribute Conventions for Data Discovery 2.0"

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== Version and Status ==
 
== Version and Status ==
 
This version is designated as Version 2.0
 
This version is designated as Version 2.0
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----
 
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The netCDF Group at Unidata has [http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html recommended] netCDF attributes for data discovery. Many of these attributes correspond to general discovery metadata content, so they are available in many metadata standards. This page includes the [http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html Unidata crosswalk to THREDDS] and adds the crosswalk to ISO 19115-2. Note that the attribute names link to the Unidata definitions. Many of these elements are included in the [https://geo-ide.noaa.gov/wiki/index.php?title=ISO_19115_Core_Elements ISO 19115 Core] specification. They are indicated in this Table by an M, O, or C in parentheses. An “M” indicates that the element is mandatory. An “O” indicates that the element is optional. A “C” indicates that the element is mandatory under certain conditions.
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The netCDF Group at Unidata has [http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html recommended] netCDF attributes for data discovery. Many of these attributes correspond to general discovery metadata content, so they are available in many metadata standards. This page includes the [http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html Unidata crosswalk to THREDDS] and adds the crosswalk to ISO 19115-2. Note that the attribute names link to the Unidata definitions. Many of these elements are included in the [https://geo-ide.noaa.gov/wiki/index.php?title=ISO_19115_Core_Elements ISO 19115 Core] specification. They are indicated in this Table by an M, O, or C in parentheses. An “M” indicates that the element is mandatory. An “O” indicates that the element is optional. A “C” indicates that the element is mandatory under certain conditions.
  
 
A [https://geo-ide.noaa.gov/wiki/index.php?title=NetCDF_Attribute_Convention_for_Dataset_Discovery_Conformance_Test Conformance Test] is available for this convention.
 
A [https://geo-ide.noaa.gov/wiki/index.php?title=NetCDF_Attribute_Convention_for_Dataset_Discovery_Conformance_Test Conformance Test] is available for this convention.
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</tr>
 
</tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#title_Attribute title]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#title_Attribute title]<br>
 
       </td>
 
       </td>
 
       <td valign="top">A short description of the dataset.<br>
 
       <td valign="top">A short description of the dataset.<br>
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     </tr>
 
     </tr>
 
<tr>
 
<tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#summary_Attribute summary]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#summary_Attribute summary]<br>
 
       </td>
 
       </td>
 
       <td valign="top">A paragraph describing the dataset.<br>
 
       <td valign="top">A paragraph describing the dataset.<br>
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</tr>
 
</tr>
 
<tr>
 
<tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#keywords_Attribute keywords]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#keywords_Attribute keywords]<br>
 
       </td>
 
       </td>
 
       <td valign="top">A comma separated list of key words and phrases.<br>
 
       <td valign="top">A comma separated list of key words and phrases.<br>
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     </tr>     
 
     </tr>     
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#id_Attribute id]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#id_Attribute id]<br>
 
       </td>
 
       </td>
 
       <td rowspan="2" colspan="1" valign="top">The
 
       <td rowspan="2" colspan="1" valign="top">The
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#naming_authority_Attribute naming_authority]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#naming_authority_Attribute naming_authority]<br>
 
       </td>
 
       </td>
 
           </tr>
 
           </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#keywords_vocabulary_Attribute keywords_vocabulary]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#keywords_vocabulary_Attribute keywords_vocabulary]<br>
 
       </td>
 
       </td>
 
       <td valign="top">If you are following a guideline for the words/phrases in your "keywords" attribute, put the name of that guideline here.<br>
 
       <td valign="top">If you are following a guideline for the words/phrases in your "keywords" attribute, put the name of that guideline here.<br>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#cdm_data_type_Attribute cdm_data_type]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#cdm_data_type_Attribute cdm_data_type]<br>
 
       </td>
 
       </td>
 
       <td valign="top">The [http://www.unidata.ucar.edu/projects/THREDDS/tech/catalog/InvCatalogSpec.html#dataType THREDDS data type] appropriate for this dataset.</td>
 
       <td valign="top">The [http://www.unidata.ucar.edu/projects/THREDDS/tech/catalog/InvCatalogSpec.html#dataType THREDDS data type] appropriate for this dataset.</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#history_Attribute history]<br></td>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#history_Attribute history]<br></td>
 
       <td valign="top">Provides an audit trail for modifications to the original data.</td>
 
       <td valign="top">Provides an audit trail for modifications to the original data.</td>
 
       <td valign="top">metadata/documentation[@type="history"]</td>
 
       <td valign="top">metadata/documentation[@type="history"]</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#comment_Attribute comment]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#comment_Attribute comment]<br>
 
       </td>
 
       </td>
 
       <td valign="top">Miscellaneous information about the data.</td>
 
       <td valign="top">Miscellaneous information about the data.</td>
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     </tr>
 
     </tr>
 
<tr>
 
<tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#date_created_Attribute date_created]</td>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#date_created_Attribute date_created]</td>
 
       <td valign="top">The date on which the data was created.<br>
 
       <td valign="top">The date on which the data was created.<br>
 
       </td>
 
       </td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#creator_name_Attribute creator_name]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#creator_name_Attribute creator_name]<br>
 
       </td>
 
       </td>
 
       <td rowspan="4" colspan="1" valign="top">The data creator's name, URL, and email. The "institution" attribute will be used if the "creator_name" attribute does not exist. <br>
 
       <td rowspan="4" colspan="1" valign="top">The data creator's name, URL, and email. The "institution" attribute will be used if the "creator_name" attribute does not exist. <br>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#creator_url_Attribute creator_url]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#creator_url_Attribute creator_url]<br>
 
       </td>       
 
       </td>       
 
       <td valign="top">metadata/creator/contact@url<br></td>
 
       <td valign="top">metadata/creator/contact@url<br></td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#creator_email_Attribute creator_email]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#creator_email_Attribute creator_email]<br>
 
       </td>
 
       </td>
 
        
 
        
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#institution_Attribute institution]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#institution_Attribute institution]<br>
 
       </td>
 
       </td>
 
       <td valign="top">metadata/creator/name</td>
 
       <td valign="top">metadata/creator/name</td>
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     </tr>
 
     </tr>
 
<tr>
 
<tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#project_Attribute project]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#project_Attribute project]<br>
 
       </td>
 
       </td>
 
       <td valign="top">The scientific project that produced the data.<br>
 
       <td valign="top">The scientific project that produced the data.<br>
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     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#processing_level_Attribute processing_level]</td>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#processing_level_Attribute processing_level]</td>
 
       <td valign="top">A textual description of the processing (or quality control) level of the data.<br>
 
       <td valign="top">A textual description of the processing (or quality control) level of the data.<br>
 
       </td>
 
       </td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#acknowledgement_Attribute acknowledgement]</td><td valign="top">A place to acknowledge various type of support for the project that produced this data.<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#acknowledgement_Attribute acknowledgement]</td><td valign="top">A place to acknowledge various type of support for the project that produced this data.<br>
 
       </td>
 
       </td>
 
       <td valign="top">metadata/documentation[@type="funding"]</td>
 
       <td valign="top">metadata/documentation[@type="funding"]</td>
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     </tr>
 
     </tr>
 
<tr>
 
<tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_min_Attribute geospatial_lat_min]<br>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_min_Attribute geospatial_lat_min]<br>
 
       </td>
 
       </td>
       <td rowspan="4" colspan="1" valign="top">Describes a simple latitude/longitude bounding box.  geospatial_lat_min specifies the southernmost latitude; geospatial_lat_max specifies the northernmost latitude; geospatial_lon_min specifies the westernmost longitude; geospatial_lon_max specifies the easternmost longitude of the bounding box.<br/>The values of geospatial_lon_min and geospatial_lon_max reflect the actual longitude data values. Cases where geospatial_lon_min is greater than geospatial_lon_max indicate the bounding box extends from geospatial_lon_max, through the longitude range discontinuity meridian (either the antimeridian or Prime Meridian), to geospatial_lon_min.<br/>For a more detailed geospatial coverage, see the [http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#suggested_geospatial suggested geospatial attributes].<br>
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       <td rowspan="4" colspan="1" valign="top">Describes a simple latitude/longitude bounding box.  geospatial_lat_min specifies the southernmost latitude; geospatial_lat_max specifies the northernmost latitude; geospatial_lon_min specifies the westernmost longitude; geospatial_lon_max specifies the easternmost longitude of the bounding box.<br/>The values of geospatial_lon_min and geospatial_lon_max reflect the actual longitude data values. Cases where geospatial_lon_min is greater than geospatial_lon_max indicate the bounding box extends from geospatial_lon_max, through the longitude range discontinuity meridian (either the antimeridian or Prime Meridian), to geospatial_lon_min.<br/>For a more detailed geospatial coverage, see the [http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#suggested_geospatial suggested geospatial attributes].<br>
 
       </td>
 
       </td>
 
       <td valign="top">metadata/geospatialCoverage/northsouth/start<br>
 
       <td valign="top">metadata/geospatialCoverage/northsouth/start<br>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_max_Attribute geospatial_lat_max]</td>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_max_Attribute geospatial_lat_max]</td>
 
        
 
        
 
       <td valign="top">metadata/geospatialCoverage/northsouth/size</td>
 
       <td valign="top">metadata/geospatialCoverage/northsouth/size</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_min_Attribute geospatial_lon_min]</td>
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       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_min_Attribute geospatial_lon_min]</td>
 
        
 
        
 
       <td valign="top">metadata/geospatialCoverage/eastwest/start</td>
 
       <td valign="top">metadata/geospatialCoverage/eastwest/start</td>
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</tr>
 
</tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_max_Attribute geospatial_lon_max]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_max_Attribute geospatial_lon_max]</td>
 
        
 
        
 
       <td valign="top">metadata/geospatialCoverage/eastwest/size</td>
 
       <td valign="top">metadata/geospatialCoverage/eastwest/size</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_min_Attribute geospatial_vertical_min]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_min_Attribute geospatial_vertical_min]<br>
 
       </td>
 
       </td>
       <td rowspan="2" colspan="1" valign="top">Describes a simple vertical bounding box. For a more detailed geospatial coverage, see the [http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#suggested_geospatial suggested geospatial attributes].</td>
+
       <td rowspan="2" colspan="1" valign="top">Describes a simple vertical bounding box. For a more detailed geospatial coverage, see the [http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#suggested_geospatial suggested geospatial attributes].</td>
 
       <td valign="top">metadata/geospatialCoverage/updown/start</td>
 
       <td valign="top">metadata/geospatialCoverage/updown/start</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:minimumValue/gco:Real</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:minimumValue/gco:Real</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_max_Attribute geospatial_vertical_max]</td>       
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_max_Attribute geospatial_vertical_max]</td>       
 
       <td valign="top">metadata/geospatialCoverage/updown/size</td>
 
       <td valign="top">metadata/geospatialCoverage/updown/size</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:maximumValue/gco:Real</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:maximumValue/gco:Real</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_start_Attribute time_coverage_start]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_start_Attribute time_coverage_start]</td>
 
       <td rowspan="4" colspan="1" valign="top">Describes the temporal coverage of the data as a time range.</td>
 
       <td rowspan="4" colspan="1" valign="top">Describes the temporal coverage of the data as a time range.</td>
 
       <td valign="top">metadata/timeCoverage/start</td>
 
       <td valign="top">metadata/timeCoverage/start</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_end_Attribute time_coverage_end]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_end_Attribute time_coverage_end]</td>
 
       <td valign="top">metadata/timeCoverage/end</td>
 
       <td valign="top">metadata/timeCoverage/end</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:endPosition</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:endPosition</td>
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_duration_Attribute time_coverage_duration]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_duration_Attribute time_coverage_duration]</td>
 
       <td valign="top">metadata/timeCoverage/duration</td>
 
       <td valign="top">metadata/timeCoverage/duration</td>
 
<td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:beginPosition provides an ISO8601 compliant description of the time period covered by the dataset. This standard supports descriptions of [http://en.wikipedia.org/wiki/ISO_8601#Durations durations].</td>
 
<td valign="top">/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:beginPosition provides an ISO8601 compliant description of the time period covered by the dataset. This standard supports descriptions of [http://en.wikipedia.org/wiki/ISO_8601#Durations durations].</td>
Line 298: Line 297:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_resolution_Attribute time_coverage_resolution]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#time_coverage_resolution_Attribute time_coverage_resolution]</td>
 
       <td valign="top">metadata/timeCoverage/resolution</td>
 
       <td valign="top">metadata/timeCoverage/resolution</td>
 
<td></td>
 
<td></td>
Line 304: Line 303:
 
<td>Extent</td>       
 
<td>Extent</td>       
 
     </tr><tr>
 
     </tr><tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#standard_name_vocabulary_Attribute standard_name_vocabulary]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#standard_name_vocabulary_Attribute standard_name_vocabulary]<br>
 
       </td>
 
       </td>
 
       <td valign="top">The name of the controlled vocabulary from which variable standard names are taken.<br>
 
       <td valign="top">The name of the controlled vocabulary from which variable standard names are taken.<br>
Line 314: Line 313:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#license_Attribute license]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#license_Attribute license]</td>
 
       <td valign="top">Describe the restrictions to data access and distribution. </td>
 
       <td valign="top">Describe the restrictions to data access and distribution. </td>
 
       <td valign="top">metadata/documentation[@type="rights"]</td>
 
       <td valign="top">metadata/documentation[@type="rights"]</td>
Line 333: Line 332:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#contributor_name_Attribute contributor_name]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#contributor_name_Attribute contributor_name]<br>
 
       </td>
 
       </td>
 
       <td rowspan="2" colspan="1" valign="top">The name and role of any individuals or institutions that contributed to the creation of this data.<br>
 
       <td rowspan="2" colspan="1" valign="top">The name and role of any individuals or institutions that contributed to the creation of this data.<br>
Line 345: Line 344:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#contributor_role_Attribute contributor_role]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#contributor_role_Attribute contributor_role]<br>
 
       </td>
 
       </td>
 
        
 
        
Line 355: Line 354:
 
      
 
      
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#publisher_name_Attribute publisher_name]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#publisher_name_Attribute publisher_name]<br>
 
       </td>
 
       </td>
 
       <td rowspan="3" colspan="1" valign="top">The data publisher's name, URL, and email. The publisher may be an individual or an institution.</td>
 
       <td rowspan="3" colspan="1" valign="top">The data publisher's name, URL, and email. The publisher may be an individual or an institution.</td>
Line 365: Line 364:
 
           </tr>
 
           </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#publisher_url_Attribute publisher_url]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#publisher_url_Attribute publisher_url]<br>
 
       </td>
 
       </td>
 
        
 
        
Line 375: Line 374:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#publisher_email_Attribute publisher_email]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#publisher_email_Attribute publisher_email]<br>
 
       </td>
 
       </td>
 
        
 
        
Line 384: Line 383:
 
     </tr>     
 
     </tr>     
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#date_modified_Attribute date_modified]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#date_modified_Attribute date_modified]<br>
 
       </td>
 
       </td>
 
       <td valign="top">The date on which this data was last modified.<br>
 
       <td valign="top">The date on which this data was last modified.<br>
Line 394: Line 393:
 
     </tr>     
 
     </tr>     
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#date_issued_Attribute date_issued]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#date_issued_Attribute date_issued]<br>
 
       </td>
 
       </td>
 
       <td valign="top">The date on which this data was formally issued.<br>
 
       <td valign="top">The date on which this data was formally issued.<br>
Line 405: Line 404:
 
      
 
      
 
<tr>
 
<tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_units_Attribute geospatial_lat_units]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_units_Attribute geospatial_lat_units]<br>
 
       </td>
 
       </td>
 
       <td rowspan="7" colspan="1" valign="top">Further refinement of the geospatial bounding box can be provided by using these units and resolution attributes.<br>
 
       <td rowspan="7" colspan="1" valign="top">Further refinement of the geospatial bounding box can be provided by using these units and resolution attributes.<br>
Line 415: Line 414:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_resolution_Attribute geospatial_lat_resolution]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lat_resolution_Attribute geospatial_lat_resolution]</td>
 
        
 
        
 
       <td valign="top">metadata/geospatialCoverage/northsouth/resolution</td>
 
       <td valign="top">metadata/geospatialCoverage/northsouth/resolution</td>
Line 422: Line 421:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_units_Attribute geospatial_lon_units]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_units_Attribute geospatial_lon_units]<br>
 
       </td>       
 
       </td>       
 
       <td valign="top">metadata/geospatialCoverage/eastwest/units</td>
 
       <td valign="top">metadata/geospatialCoverage/eastwest/units</td>
Line 429: Line 428:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_resolution_Attribute geospatial_lon_resolution]</td>       
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_lon_resolution_Attribute geospatial_lon_resolution]</td>       
 
       <td valign="top">metadata/geospatialCoverage/eastwest/resolution</td>
 
       <td valign="top">metadata/geospatialCoverage/eastwest/resolution</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:spatialRepresentationInfo/gmd:MD_Georectified/gmd:axisDimensionProperties/gmd:MD_Dimension/gmd:resolution/gco:Measure</td>
 
       <td valign="top">/gmi:MI_Metadata/gmd:spatialRepresentationInfo/gmd:MD_Georectified/gmd:axisDimensionProperties/gmd:MD_Dimension/gmd:resolution/gco:Measure</td>
Line 435: Line 434:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_units_Attribute geospatial_vertical_units]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_units_Attribute geospatial_vertical_units]<br>
 
       </td>
 
       </td>
 
       <td valign="top">metadata/geospatialCoverage/updown/units</td>
 
       <td valign="top">metadata/geospatialCoverage/updown/units</td>
Line 442: Line 441:
 
</tr>
 
</tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_resolution_Attribute geospatial_vertical_resolution]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_resolution_Attribute geospatial_vertical_resolution]<br>
 
       </td>       
 
       </td>       
 
       <td valign="top">metadata/geospatialCoverage/updown/resolution<br>
 
       <td valign="top">metadata/geospatialCoverage/updown/resolution<br>
Line 449: Line 448:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_positive_Attribute geospatial_vertical_positive]<br>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#geospatial_vertical_positive_Attribute geospatial_vertical_positive]<br>
 
       </td>
 
       </td>
 
        
 
        
Line 467: Line 466:
 
     </tr>     
 
     </tr>     
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#long_name_Attribute long_name]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#long_name_Attribute long_name]</td>
 
       <td valign="top">A long descriptive name for the variable (not necessarily from a controlled vocabulary).</td>
 
       <td valign="top">A long descriptive name for the variable (not necessarily from a controlled vocabulary).</td>
 
       <td valign="top">metadata/variables/variable@vocabulary_name</td>
 
       <td valign="top">metadata/variables/variable@vocabulary_name</td>
Line 473: Line 472:
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#standard_name_Attribute standard_name]<br></td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#standard_name_Attribute standard_name]<br></td>
 
       <td valign="top">A long descriptive name for the variable taken from a controlled vocabulary of variable names.</td>
 
       <td valign="top">A long descriptive name for the variable taken from a controlled vocabulary of variable names.</td>
 
       <td valign="top">metadata/variables/variable@vocabulary_name</td>
 
       <td valign="top">metadata/variables/variable@vocabulary_name</td>
 
     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td valign="top">[http://www.unidata.ucar.edu/software/netcdf-java/formats/DataDiscoveryAttConvention.html#units_Attribute units]</td>
+
       <td valign="top">[http://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/formats/DataDiscoveryAttConvention.html#units_Attribute units]</td>
 
       <td valign="top">The units of the variables data values. This attributes value should be a valid udunits string.</td>
 
       <td valign="top">The units of the variables data values. This attributes value should be a valid udunits string.</td>
 
       <td valign="top">metadata/variables/variable@units</td>
 
       <td valign="top">metadata/variables/variable@units</td>

Revision as of 14:14, September 2, 2014

       DRAFT - Not ready for use

Version and Status

This version is designated as Version 2.0 This page always has the current version of the Attribute Convention for Data Discovery (ACDD). As it is updated, the version number at the top of the page will be updated.

See the [category page] for information on the history of this convention.

Development

Any development version of the ACDD definitions is maintained at Attribute_Convention_for_Data_Discovery_(ACDD)_Working.


The netCDF Group at Unidata has recommended netCDF attributes for data discovery. Many of these attributes correspond to general discovery metadata content, so they are available in many metadata standards. This page includes the Unidata crosswalk to THREDDS and adds the crosswalk to ISO 19115-2. Note that the attribute names link to the Unidata definitions. Many of these elements are included in the ISO 19115 Core specification. They are indicated in this Table by an M, O, or C in parentheses. An “M” indicates that the element is mandatory. An “O” indicates that the element is optional. A “C” indicates that the element is mandatory under certain conditions.

A Conformance Test is available for this convention.

Metadata Link

The netCDF metadata model is focused on providing "use metadata" for the data included in the file (or granule). Other metadata dialects (i.e. ISO 19115) can provide information about collections and more details about the dataset. In order to make users aware of that additional metadata we recommend adding a global attribute named "Metadata_Link" to the netCDF file. The value of this attribute is a URL that gives the location of the more complete metadata. This element is not included in the current version of the NetCDF Attribute Convention for Dataset Discovery.

Highly Recommended

Attribute Description THREDDS ISO 19115-2 OGC CSW Rubric Category
title
A short description of the dataset.
dataset@name
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:title/gco:CharacterString (M)
Title Text Search
summary
A paragraph describing the dataset.
metadata/documentation[@type="summary"]
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:abstract/gco:CharacterString (M)
Abstract Text Search
keywords
A comma separated list of key words and phrases.
metadata/keyword
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString
Subject Text Search

Recommended

Attribute Description THREDDS ISO 19115-2 OGC CSW Rubric Category
id
The

combination of the "naming authority" and the "id" should be a globally unique identifier for the dataset.

dataset@id
/gmi:MI_Metadata/gmd:fileIdentifier/gco:CharacterString (O)
Identifier Identifier
naming_authority
keywords_vocabulary
If you are following a guideline for the words/phrases in your "keywords" attribute, put the name of that guideline here.
metadata/keyword@vocabulary /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:thesaurusName/gmd:CI_Citation/gmd:title/gco:CharacterString
Text Search
cdm_data_type
The THREDDS data type appropriate for this dataset. metadata/dataType /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:spatialRepresentationType/gmd:MD_SpatialRepresentationTypeCode
May need some extensions to this codelist. Current values: vector, grid, textTable, tin, stereoModel, video.
Other
history
Provides an audit trail for modifications to the original data. metadata/documentation[@type="history"] /gmi:MI_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:lineage/gmd:LI_Lineage/gmd:statement/gco:CharacterString (O) Text Search
comment
Miscellaneous information about the data. metadata/documentation
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:supplementalInformation
Text Search
date_created The date on which the data was created.
metadata/date[@type="created"] /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:date/gmd:CI_Date/gmd:date/gco:Date (M)
/gmd:dateType/gmd:CI_DateTypeCode="creation"
Responsible Party
creator_name
The data creator's name, URL, and email. The "institution" attribute will be used if the "creator_name" attribute does not exist.
metadata/creator/name
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:individualName/gco:CharacterString
CI_RoleCode="originator" (O)
Responsible Party
creator_url
metadata/creator/contact@url
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:onlineResource/gmd:CI_OnlineResource/gmd:linkage/gmd:URL
Responsible Party
creator_email
metadata/creator/contact@email /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:address/gmd:CI_Address/gmd:electronicMailAddress/gco:CharacterString Responsible Party
institution
metadata/creator/name /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:organisationName/gco:CharacterString Responsible Party
project
The scientific project that produced the data.
metadata/project
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString
and/or
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:aggregationInfo/gmd:MD_AggregateInformation/gmd:aggregateDataSetName/gmd:CI_Citation/gmd:title/gco:CharacterString
DS_AssociationTypeCode="largerWorkCitation" and DS_InitiativeTypeCode="project"
and/or

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString with gmd:MD_KeywordTypeCode="project"

Responsible Party
processing_level A textual description of the processing (or quality control) level of the data.
metadata/documentation[@type="processing_level"]
acknowledgementA place to acknowledge various type of support for the project that produced this data.
metadata/documentation[@type="funding"] /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:credit/gco:CharacterString Responsible Party
geospatial_bounds Describes geospatial extent using any of the geometric objects (2D or 3D) supported by the Well-Known Text (WKT) format. BoundingPolygon Extent
geospatial_lat_min
Describes a simple latitude/longitude bounding box. geospatial_lat_min specifies the southernmost latitude; geospatial_lat_max specifies the northernmost latitude; geospatial_lon_min specifies the westernmost longitude; geospatial_lon_max specifies the easternmost longitude of the bounding box.
The values of geospatial_lon_min and geospatial_lon_max reflect the actual longitude data values. Cases where geospatial_lon_min is greater than geospatial_lon_max indicate the bounding box extends from geospatial_lon_max, through the longitude range discontinuity meridian (either the antimeridian or Prime Meridian), to geospatial_lon_min.
For a more detailed geospatial coverage, see the suggested geospatial attributes.
metadata/geospatialCoverage/northsouth/start
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:southBoundLatitude/gco:Decimal
BoundingBox Extent
geospatial_lat_max metadata/geospatialCoverage/northsouth/size /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:northBoundLatitude/gco:Decimal
BoundingBox Extent
geospatial_lon_min metadata/geospatialCoverage/eastwest/start /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:westBoundLongitude/gco:Decimal
BoundingBox Extent
geospatial_lon_max metadata/geospatialCoverage/eastwest/size /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:eastBoundLongitude/gco:Decimal
BoundingBox Extent
geospatial_vertical_min
Describes a simple vertical bounding box. For a more detailed geospatial coverage, see the suggested geospatial attributes. metadata/geospatialCoverage/updown/start /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:minimumValue/gco:Real Extent
geospatial_vertical_max metadata/geospatialCoverage/updown/size /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:maximumValue/gco:Real Extent
time_coverage_start Describes the temporal coverage of the data as a time range. metadata/timeCoverage/start /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:beginPosition Extent
time_coverage_end metadata/timeCoverage/end /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:endPosition Extent
time_coverage_duration metadata/timeCoverage/duration /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:beginPosition provides an ISO8601 compliant description of the time period covered by the dataset. This standard supports descriptions of durations. Extent
time_coverage_resolution metadata/timeCoverage/resolution Extent
standard_name_vocabulary
The name of the controlled vocabulary from which variable standard names are taken.
metadata/variables@vocabulary /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:thesaurusName/gmd:CI_Citation/gmd:title/gco:CharacterString
Text Search
license Describe the restrictions to data access and distribution. metadata/documentation[@type="rights"] /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:resourceConstraints/gmd:MD_LegalConstraints/gmd:useLimitation/gco:CharacterString

Suggested

Attribute Description THREDDS ISO 19115-2 OGC CSW Rubric Category
contributor_name
The name and role of any individuals or institutions that contributed to the creation of this data.
metadata/contributor
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:individualName/gco:CharacterString
Responsible Party
contributor_role
metadata/contributor@role /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:role/gmd:CI_RoleCode
="principalInvestigator" | "author"
Responsible Party
publisher_name
The data publisher's name, URL, and email. The publisher may be an individual or an institution. metadata/publisher/name
/gmi:MI_Metadata/gmd:distributionInfo/gmd:MD_Distribution/gmd:distributor/gmd:MD_Distributor/gmd:distributorContact/gmd:CI_ResponsibleParty/gmd:organisationName/gco:CharacterString
and/or
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:individualName/gco:CharacterString
CI_RoleCode="publisher"
and/or
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString with gmd:MD_KeywordTypeCode="dataCenter"
Responsible Party
publisher_url
metadata/publisher/contact@url
/gmi:MI_Metadata/gmd:distributionInfo/gmd:MD_Distribution/gmd:distributor/gmd:MD_Distributor/gmd:distributorContact/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:onlineResource/gmd:CI_OnlineResource/gmd:linkage/gmd:URL
and/or
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:onlineResource/gmd:CI_OnlineResource/gmd:linkage/gmd:URL
CI_RoleCode="publisher"
Responsible Party
publisher_email
metadata/publisher/contact@email /gmi:MI_Metadata/gmd:distributionInfo/gmd:MD_Distribution/gmd:distributor/gmd:MD_Distributor/gmd:distributorContact/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:address/gmd:CI_Address/gmd:electronicMailAddress/gco:CharacterString
and/or
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:citedResponsibleParty/gmd:CI_ResponsibleParty/gmd:contactInfo/gmd:CI_Contact/gmd:address/gmd:CI_Address/gmd:electronicMailAddress/gco:CharacterString
CI_RoleCode="publisher"
Responsible Party
date_modified
The date on which this data was last modified.
metadata/date[@type="modified"] /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:date/gmd:CI_Date/gmd:date/gco:Date
/gmd:dateType/gmd:CI_DateTypeCode="revision"
ModifiedResponsible Party
date_issued
The date on which this data was formally issued.
metadata/date[@type="issued"] /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:date/gmd:CI_Date/gmd:date/gco:Date
/gmd:dateType/gmd:CI_DateTypeCode="publication"
Responsible Party
geospatial_lat_units
Further refinement of the geospatial bounding box can be provided by using these units and resolution attributes.
metadata/geospatialCoverage/northsouth/units /gmi:MI_Metadata/gmd:spatialRepresentationInfo/gmd:MD_Georectified/gmd:axisDimensionProperties/gmd:MD_Dimension/gmd:resolution/gco:Measure/@uom Extent
geospatial_lat_resolution metadata/geospatialCoverage/northsouth/resolution /gmi:MI_Metadata/gmd:spatialRepresentationInfo/gmd:MD_Georectified/gmd:axisDimensionProperties/gmd:MD_Dimension/gmd:resolution/gco:Measure Extent
geospatial_lon_units
metadata/geospatialCoverage/eastwest/units /gmi:MI_Metadata/gmd:spatialRepresentationInfo/gmd:MD_Georectified/gmd:axisDimensionProperties/gmd:MD_Dimension/gmd:resolution/gco:Measure/@uom Extent
geospatial_lon_resolution metadata/geospatialCoverage/eastwest/resolution /gmi:MI_Metadata/gmd:spatialRepresentationInfo/gmd:MD_Georectified/gmd:axisDimensionProperties/gmd:MD_Dimension/gmd:resolution/gco:Measure Extent
geospatial_vertical_units
metadata/geospatialCoverage/updown/units /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:verticalCRS Extent
geospatial_vertical_resolution
metadata/geospatialCoverage/updown/resolution
Extent
geospatial_vertical_positive
metadata/geospatialCoverage@zpositive
Extent

Highly Recommended Variable Attributes

Attribute Description THREDDS ISO 19115-2
long_name A long descriptive name for the variable (not necessarily from a controlled vocabulary). metadata/variables/variable@vocabulary_name At present the ISO 19115-2 Standard supports only one name for a variable. Standard names can be provided as keywords with the appropriate thesaurus.
standard_name
A long descriptive name for the variable taken from a controlled vocabulary of variable names. metadata/variables/variable@vocabulary_name
units The units of the variables data values. This attributes value should be a valid udunits string. metadata/variables/variable@units /gmi:MI_Metadata/gmd:contentInfo/gmi:MI_CoverageDescription/gmd:dimension/gmd:MD_Band/gmd:units
coverage_content_type An ISO 19115-1 code to indicate the source of the data. The valid values in the MD_CoverageContentTypeCode list are image, thematicClassification, physicalMeasurement, auxiliaryInformation, qualityInformation, referenceInformation, modelResult, coordinate


Translation Revisions

Determining an Order of Precedence