Metadata
GeoBlacklight uses a lightweight metadata schema designed for geospatial resource discovery. The schema enables keyword searches, faceted refinement, and spatial map searching.
Note
Metadata for GeoBlacklight is documented on the OpenGeoMetadata website .. Key pages include:
- https://opengeometadata.org/ogm-aardvark - OGM Aardvark Schema for GeoBlacklight versions 4.x
- https://opengeometadata.org/gbl-1.0 - GBL 1.0 Metadata Schema for GeoBlacklight versions 2.x - 3.x
- https://opengeometadata.org/upgrade-metadata - Upgrading Metadata from GBL 1.0 to OGM Aardvark
Metadata functionality in GeoBlacklight 4.x (with OGM Aardvark)
Hover over the column headers for sorting options.
LabelField URI | Required - will cause app to error if missing | Default facet | Search results display | Item show default display | Relation widget | Notes |
---|---|---|---|---|---|---|
IDid | yes | no | no | no | no | Functions as the slug (end part) of the item's URL |
Access Rightsdct_accessRights_s | yes | no | icon | no | no | If set to "Restricted", a closed padlock icon appears next to the title. Downloads and web service previews will be hidden unless a user logs in using an authentication process. If set to "Public", an open padlock icon appears next to the title. Downloads and web services are accessible. |
Formatdct_format_s | conditional | yes | no | yes | no | Required if a Download link is included. This value displays on the item show in the button under the download widget. |
Titledct_title_s | no (see notes) | no | Clickable text | yes | no | If a title is missing, GeoBlacklight will display the ID as the title. |
Alternative Titledct_alternative_sm | no | no | no | yes | no | - |
Bounding Boxdcat_bbox | no | no | no | no | no | Rectangular extent required for overlap ratio boosting as part of the overall relevance ranking algorithm. |
Centroiddcat_centroid | no | no | no | no | no | Can be leveraged for homepage centroid map. Not used in default GeoBlacklight. |
Creatordct_creator_sm | no | yes | text on expanded view | yes | no | - |
Date Issueddct_issued_s | no | no | no | yes | no | - |
Date Rangegbl_dateRange_drsim | no | no | no | yes | no | - |
Descriptiondct_description_sm | no | no | text on expanded view | yes | no | - |
Display Notegbl_displayNote_sm | no | no | no | yes | no | Text displays within a callout box |
File Sizegbl_fileSize_s | no | no | no | yes | no | - |
Geometrylocn_geometry | no | no | no | no | no | Required for the map search |
Georeferencedgbl_georeferenced_b | no | yes | no | yes | no | - |
Identifierdct_identifier_sm | no | no | no | no | no | - |
Index Yeargbl_indexYear_im | no | yes | text on expanded view | yes | no | Can be used with the Date Range plugin |
Is Part Ofdct_isPartOf_sm | no | no | no | no | yes | - |
Is Replaced Bydct_isReplacedBy_sm | no | no | no | no | no | Not used in GeoBlacklight |
Is Version Ofdct_isVersionOf_sm | no | no | no | no | yes | - |
Keyworddcat_keyword_sm | no | no | no | yes | no | - |
Languagedct_language_sm | no | no | no | yes | no | 3 digit code |
Licensedct_license_sm | no | no | no | yes | no | - |
Member Ofpcdm_memberOf_sm | no | no | no | no | yes | - |
Metadata Versiongbl_mdVersion_s | no | no | no | no | no | May be required by some harvesters in OpenGeoMetadata |
Providerschema_provider_s | no | yes | icon | yes | no | May control which records an authenticated user has access to. |
Publisherdct_publisher_sm | no | yes | no | yes | no | - |
Referencesdct_references_s | no | no | no | no | no | See https://opengeometadata.org/reference-uris/ for how different references function in GeoBlacklight |
Relationdct_relation_sm | no | no | no | no | yes | - |
Replacesdct_replaces_sm | no | no | no | no | yes | - |
Resource Classgbl_resourceClass_sm | no | yes | icon | yes | no | GBL will display an icon associated with the value. If multivalued, the first value will be used. Note: there is currently no icon for "Web services". |
Resource Typegbl_resourceType_sm | no | yes | no | yes | no | - |
Rightsdct_rights_sm | no | no | no | yes | no | - |
Rights Holderdct_rightsHolder_sm | no | no | no | yes | no | - |
Sourcedct_source_sm | no | no | no | no | yes | - |
Spatial Coveragedct_spatial_sm | no | yes | no | yes | no | - |
Subjectdct_subject_sm | no | yes | no | yes | no | - |
Suppressedgbl_suppressed_b | no | no | no | no | no | Hides items from search results. Items are only visible as child or related records in the Relations widgets. |
Temporal Coveragedct_temporal_sm | no | no | no | yes | no | - |
Themedcat_theme_sm | no | yes | no | yes | no | - |
WxS Identifiergbl_wxsIdentifier_s | no | no | no | no | no | Required if a OCG web service is included |
Modifiedgbl_mdModified_dt | no | no | no | no | no | - |