Aardvark to GBL 1.0

The following chart shows the full Aardvark schema and which GBL 1.0 fields can be directly mapped.

Crosswalk table

Aardvark Label	OGM Aardvark	GBL 1.0	Note
Access Rights	dct_accessRights_s	dc_rights_s	new field name
Alternative Title	dct_alternative_sm	-	new field
Bounding Box	dcat_bbox	solr_geom	new field
Centroid	dcat_centroid	-	new field
Creator	dct_creator_sm	dc_creator_sm	new namespace
Date Issued	dct_issued_s	dct_issued_s	no change
Date Range	gbl_dateRange_drsim	-	new field
Description	dct_description_sm	dc_description_s	new namespace; single to multi-valued
Display Note	gbl_displayNote_sm	-	new field
File Size	gbl_fileSize_s	-	new field
Format	dct_format_s	dc_format_s	new namespace
Geometry	locn_geometry	solr_geom	new field
Georeferenced	gbl_georeferenced_b	-	new field
ID	id	layer_slug_s	new field name
Identifier	dct_identifier_sm	dc_identifier_s	new namespace; single to multi-valued
Index Year	gbl_indexYear_im	solr_year_i	new field name; single to multi-valued
Is Part Of	dct_isPartOf_sm	-	new value type (see Elements without a crosswalk)
Is Replaced By	dct_isReplacedBy_sm	-	new field
Keyword	dcat_keyword_sm	-	new field
Language	dct_language_sm	dc_language_s or _sm	new namespace; single to multi-valued
License	dct_license_sm	-	new field
Member Of	pcdm_memberOf_sm	-	new field
Metadata Version	gbl_mdVersion_s	geoblacklight_version	new field name
Modified	gbl_mdModified_dt	layer_modified_dt	new field name
Provider	schema_provider_s	dct_provenance_s	new field name
Publisher	dct_publisher_sm	dc_publisher_s	new namespace; single to multi-valued
References	dct_references_s	dct_references_s	no change
Relation	dct_relation_sm	-	new field
Replaces	dct_replaces_sm	-	new field
Resource Class	gbl_resourceClass_sm	-	new field
Resource Type	gbl_resourceType_sm	-	new field
Rights	dct_rights_sm	-	new field
Rights Holder	dct_rightsHolder_sm	-	new field
Source	dct_source_sm	dc_source_sm	new namespace
Spatial Coverage	dct_spatial_sm	dct_spatial_sm	no change
Subject	dct_subject_sm	dc_subject_sm	new namespace
Suppressed	gbl_suppressed_b	suppressed_b	new namespace
Temporal Coverage	dct_temporal_sm	dct_temporal_sm	no change
Theme	dcat_theme_sm	-	new field
Title	dct_title_s	dc_title_s	new namespace
Version	dct_isVersionOf_sm	-	new field
WxS Identifier	gbl_wxsIdentifier_s	layer_id_s	new field name
-	-	dc_type_s	deprecated field
-	-	layer_geom_type_s	deprecated field
-	-	dc_isPartOf_sm	deprecated literal field, replaced by nonliteral dct_isPartOf_sm,, which takes an ID

Elements without a crosswalk

Most of the elements from GBL 1.0 can be crosswalked directly into OGM Aardvark. The values for these elements are the same - only the field name has changed or the field has been converted to an array.

However, there are three elements in GBL 1.0 that do not directly translate into OGM Aardvark. While they have been replaced with similar fields in OGM Aardvark, the values themselves would need to be altered during crosswalking.

Type (dc_type_s)

• GBL 1.0 Description: This single-valued GBL 1.0 field observes the Dublin Core controlled vocabulary for Type, including Dataset, Image, Collection, Interactive Resource, or Physical Object.
• Similar Aardvark element: This has been replaced in Aardvark with the multi-valued Resource Class, which uses a custom controlled vocabulary of Collections, Datasets, Imagery, Maps, Web services, and/or Other.

Geometry Type (layer_geom_type_s)

• GBL 1.0 Description: This single-valued GBL 1.0 field differentiates between vector (Point, Line, Polygon), raster (Raster, Image), non-spatial formats (Table), or a combination (Mixed).
• Similar Aardvark element: This has been replaced in Aardvark with the multi-valued Resource Type, which uses a controlled vocabulary drawn from Library of Congress cartographic genres and GIS geometries.

Is Part Of (dct_isPartOf_sm)

• GBL 1.0 Description: This multi-valued GBL 1.0 plain text field is for writing out the name of a collection. Example: dct_isPartOf_sm:"Village Maps of India"
• Similar Aardvark element: The field name is the same in Aardvark, but it is now a non-literal field. The value must be one or more IDs that reference another record within the system. Example: dct_isPartOf_sm:"princeton-z603r079s"