FRINK geo / administrative feature-class inventory

Every instantiated geographic or administrative feature class IRI in the 14-graph FRINK federation, grouped by the real-world concept it denotes and the broader feature family. Under each class IRI, one line per knowledge graph that instantiates it, with the graph's instance count and the instance-IRI template its members follow.

IRIs are shown in full, including scheme. http:// and https:// forms of the "same" vocabulary term are listed as separate class IRIs, because they are distinct RDF resources: an instance typed http://schema.org/Place will not join to one typed https://schema.org/Place without an explicit owl:sameAs or a normalization rule.

Interoperability tier (of the class's instance-IRI scheme):

• 🔵 SHARED — the same instance-IRI scheme is minted by ≥2 graphs (real cross-graph join key)
• 🟠 SHAREABLE — a governed / reference scheme (e.g. https://geoconnex.us/…, https://datacommons.org/…) currently used by one graph but designed for reuse
• 🟤 SILOED — a project-local scheme, not designed for reuse

×N on a class = N co-typed sibling subtype classes in that graph folded onto one shared instance template (e.g. the 51 USGS NWIS monitoring-location site-types).

Scope: 65 class-IRI nodes · 152 class partitions folded · 19 concepts · 6 families · 13 class IRIs shared across ≥2 graphs.

Administrative hierarchy

Country (ADM0) · 2 graphs, 2 class IRIs

• http://asu.edu/semantics/SUDOKN/Country — 🟤 SILOED · 1 graph
  • sudokn — 128 instances — http://asu.edu/semantics/SUDOKN/{id}
• http://stko-kwg.geog.ucsb.edu/lod/ontology/AdministrativeRegion_0 — 🔵 SHARED · 1 graph
  • sockg — 2 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}

State (ADM1) · 7 graphs, 5 class IRIs

• http://asu.edu/semantics/SUDOKN/State — 🟤 SILOED · 1 graph
  • sudokn — 938 instances — http://asu.edu/semantics/SUDOKN/{id}
• http://stko-kwg.geog.ucsb.edu/lod/ontology/AdministrativeRegion_1 — 🔵 SHARED · 5 graphs
  • spatialkg — 102 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • hydrologykg — 50 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sockg — 36 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • fiokg — 1 instance — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 1 instance — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• http://gnis-ld.org/lod/gnis/ontology/State — 🟠 SHAREABLE · 1 graph
  • geoconnex — 56 instances — https://geoconnex.us/ref/states/{id}
• https://schema.org/State — 🟠 SHAREABLE · 1 graph
  • geoconnex — 56 instances — https://geoconnex.us/ref/states/{id}
• http://w3id.org/fio/v1/epa-frs#Agency.State — 🟤 SILOED · 1 graph
  • fiokg — 3 instances — http://w3id.org/fio/v1/epa-frs-data#{id}

County (ADM2) · 6 graphs, 2 class IRIs

• http://stko-kwg.geog.ucsb.edu/lod/ontology/AdministrativeRegion_2 — 🔵 SHARED · 5 graphs
  • spatialkg — 6.2 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • hydrologykg — 3.1 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • fiokg — 102 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sockg — 62 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 16 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• http://gnis-ld.org/lod/gnis/ontology/County — 🟠 SHAREABLE · 1 graph
  • geoconnex — 3.2 k instances — https://geoconnex.us/ref/counties/{id}

County subdivision (ADM3) · 4 graphs, 1 class IRI

• http://stko-kwg.geog.ucsb.edu/lod/ontology/AdministrativeRegion_3 — 🔵 SHARED · 4 graphs
  • hydrologykg — 35.5 k instances — https://datacommons.org/browser/geoId/{id}
  • spatialkg — 35.5 k instances — https://datacommons.org/browser/geoId/{id}
  • fiokg — 1.7 k instances — https://datacommons.org/browser/geoId/{id}
  • sawgraph — 529 instances — https://datacommons.org/browser/geoId/{id}

Census statistical unit · 1 graph, 1 class IRI

• https://metadata.phila.gov/CensusTract — 🟤 SILOED · 1 graph
  • nikg — 361 instances — https://metadata.phila.gov/{id}

Administrative area (other) · 6 graphs, 4 class IRIs

• http://stko-kwg.geog.ucsb.edu/lod/ontology/Region — 🔵 SHARED · 3 graphs
  • spatialkg — 7.45 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • hydrologykg — 7.44 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 86.9 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• https://schema.org/AdministrativeArea — 🟠 SHAREABLE · 2 graphs
  • spoke-okn — 113.9 k instances — https://purl.org/okn/frink/kg/spoke-okn/location/{id}
  • geoconnex — 3.3 k instances — https://geoconnex.us/ref/counties/{id}
• http://stko-kwg.geog.ucsb.edu/lod/ontology/AdministrativeRegion — 🔵 SHARED · 3 graphs
  • spatialkg — 41.8 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • hydrologykg — 38.6 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 546 instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• http://sail.ua.edu/ruralkg/settlementtype/CountyStatus — 🟤 SILOED · 1 graph
  • ruralkg — 3.2 k instances — http://sail.ua.edu/ruralkg/settlementtype/{id}

Populated places

City / populated place · 6 graphs, 7 class IRIs

• https://schema.org/Place — 🟠 SHAREABLE · 3 graphs
  • ufokn — 5.84 M instances — https://ufokn.org/id/urmi/{id}
  • geoconnex — 2.96 M instances — https://api.wwdh.internetofwater.app/collections/awdb-forecasts-edr/items/{id}
  • sudokn — 56.2 k instances — http://asu.edu/semantics/SUDOKN/{id}
• http://asu.edu/semantics/SUDOKN/GeospatialLocation — 🟤 SILOED · 1 graph
  • sudokn — 56.2 k instances — http://asu.edu/semantics/SUDOKN/{id}
• http://asu.edu/semantics/SUDOKN/City — 🟤 SILOED · 1 graph
  • sudokn — 10.3 k instances — http://asu.edu/semantics/SUDOKN/{id}
• http://schema.org/Place — 🟤 SILOED · 1 graph
  • dreamkg — 1.0 k instances — dreamkg:/service/location/{id}
• https://idir.uta.edu/sockg-ontology#WaterQualityArea — 🟤 SILOED · 1 graph
  • sockg — 681 instances — https://idir.uta.edu/sockg-ontology/individuals/{id}
• http://release.niem.gov/niem/niem-core/5.0/#Location — 🔵 SHARED · 1 graph
  • scales — 536 instances — https://datacommons.org/browser/geoId/{id}
• https://idir.uta.edu/sockg-ontology#WindErosionArea — 🟤 SILOED · 1 graph
  • sockg — 34 instances — https://idir.uta.edu/sockg-ontology/individuals/{id}

Grid / DGG cells

Grid / DGG cell · 5 graphs, 4 class IRIs

• http://stko-kwg.geog.ucsb.edu/lod/ontology/S2Cell_Level13 — 🔵 SHARED · 4 graphs
  • hydrologykg — 7.40 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • spatialkg — 7.40 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 86.3 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sockg — 1.1 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• http://stko-kwg.geog.ucsb.edu/lod/ontology/Cell — 🔵 SHARED · 3 graphs
  • hydrologykg — 7.40 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • spatialkg — 7.40 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 86.3 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• http://stko-kwg.geog.ucsb.edu/lod/ontology/S2Cell — 🔵 SHARED · 3 graphs
  • hydrologykg — 7.40 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • spatialkg — 7.40 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 86.3 k instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
• https://stko-kwg.geog.ucsb.edu/lod/ontology#S2Cell — 🟤 SILOED · 1 graph
  • ufokn — 11.72 M instances — bn1970324

Water & hydrology

Flow path / river · 2 graphs, 2 class IRIs

• https://www.opengis.net/def/schema/hy_features/hyf/HY_FlowPath — 🟠 SHAREABLE · 2 graphs
  • hydrologykg — 434.5 k instances — https://geoconnex.us/nhdplusv2/comid/{id}
  • geoconnex — 34.1 k instances — https://geoconnex.us/ref/mainstems/{id}
• https://www.opengis.net/def/schema/hy_features/hyf/HY_ElementaryFlowPath — 🟠 SHAREABLE · 1 graph
  • hydrologykg — 434.5 k instances — https://geoconnex.us/nhdplusv2/comid/{id}

Lake · 1 graph, 1 class IRI

• https://www.opengis.net/def/schema/hy_features/hyf/HY_Lake — 🟠 SHAREABLE · 1 graph
  • hydrologykg — 60.1 k instances — https://geoconnex.us/nhdplusv2/comid/{id}

Aquifer · 1 graph, 1 class IRI

• http://gwml2.org/def/gwml2#GW_Aquifer — 🟤 SILOED · 1 graph
  • hydrologykg — 8.4 k instances — http://sawgraph.spatialai.org/v1/il_isgs_data#{id}

Watershed / catchment · 1 graph, 1 class IRI

• https://www.opengis.net/def/schema/hy_features/hyf/HY_CatchmentRealization — 🟠 SHAREABLE · 1 graph
  • hydrologykg — 434.5 k instances — https://geoconnex.us/nhdplusv2/comid/{id}

Hydrologic feature / location · 2 graphs, 6 class IRIs

• https://www.opengis.net/def/schema/hy_features/hyf/HY_HydroLocation — 🟠 SHAREABLE · 1 graph
  • geoconnex — 2.42 M instances — https://api.wwdh.internetofwater.app/collections/awdb-forecasts-edr/items/{id}
• https://www.opengis.net/def/schema/hy_features/hyf/HY_HydrometricFeature — 🟠 SHAREABLE · 1 graph
  • geoconnex — 2.41 M instances — https://geoconnex.us/iow/demo/{id}
• https://www.opengis.net/def/appschema/hy_features/hyf/HY_HydroLocation — 🟠 SHAREABLE · 1 graph
  • geoconnex — 155.5 k instances — https://api.wwdh.internetofwater.app/collections/awdb-forecasts-edr/items/{id}
• https://www.opengis.net/def/appschema/hy_features/hyf/HY_HydrometricFeature — 🔵 SHARED · 1 graph
  • geoconnex — 154.7 k instances — https://geoconnex.us/iow/wqp/{id}
• https://www.opengis.net/def/schema/hy_features/hyf/HY_WaterBody — 🟠 SHAREABLE · 2 graphs
  • hydrologykg — 73.0 k instances — https://geoconnex.us/nhdplusv2/comid/{id}
  • geoconnex — 34.1 k instances — https://geoconnex.us/ref/mainstems/{id}
• https://www.opengis.net/def/schema/hy_features/hyf/HY_HydroFeature — 🟠 SHAREABLE · 1 graph
  • hydrologykg — 73.0 k instances — https://geoconnex.us/nhdplusv2/comid/{id}

Sites, facilities & samples

Monitoring / observation site · 2 graphs, 3 class IRIs

• https://api.waterdata.usgs.gov/ogcapi/v0/collections/site-types/items/GW ×51 — 🟠 SHAREABLE · 1 graph
  • geoconnex — 1.73 M instances (×51 subtypes) — https://geoconnex.us/usgs/monitoring-location/{id}
• http://sawgraph.spatialai.org/v1/il-isgs#ISGS-Well — 🟤 SILOED · 1 graph
  • hydrologykg — 379.5 k instances — http://sawgraph.spatialai.org/v1/il-isgs-data#{id}
• http://sawgraph.spatialai.org/v1/me-mgs#MGS-Well — 🟤 SILOED · 1 graph
  • hydrologykg — 153.3 k instances — http://sawgraph.spatialai.org/v1/me-mgs-data#{id}

Site / sampled feature · 3 graphs, 8 class IRIs

• http://www.w3.org/ns/sosa/FeatureOfInterest ×3 — 🔵 SHARED · 1 graph
  • sawgraph — 54.9 k instances (×3 subtypes) — http://geoconnex.us/ref/pws/{id}
• http://w3id.org/coso/v1/contaminoso#SamplePoint ×7 — 🟤 SILOED · 1 graph
  • sawgraph — 38.2 k instances (×7 subtypes) — http://w3id.org/sawgraph/v1/me-egad-data#{id}
• https://idir.uta.edu/sockg-ontology#SoilBiologicalSample — 🟤 SILOED · 1 graph
  • sockg — 18.3 k instances — https://idir.uta.edu/sockg-ontology/individuals/{id}
• http://w3id.org/coso/v1/contaminoso#SampledFeature — 🟠 SHAREABLE · 1 graph
  • sawgraph — 10.9 k instances — http://w3id.org/hyfo/wbd/v1/wbd-data#{id}
• http://w3id.org/sawgraph/v1/us-wqp#Site — 🔵 SHARED · 1 graph
  • sawgraph — 2.5 k instances — https://geoconnex.us/iow/wqp/{id}
• http://asu.edu/semantics/SUDOKN/GeospatialSite — 🟤 SILOED · 1 graph
  • sudokn — 227 instances — http://asu.edu/semantics/SUDOKN/{id}
• http://w3id.org/sawgraph/v1/us-wqp#Project ×3 — 🟤 SILOED · 1 graph
  • sawgraph — 125 instances (×3 subtypes) — http://w3id.org/sawgraph/v1/us-wqp-data#{id}
• https://idir.uta.edu/sockg-ontology#Site — 🟤 SILOED · 1 graph
  • sockg — 60 instances — https://idir.uta.edu/sockg-ontology/individuals/{id}

Environmental sample · 1 graph, 3 class IRIs

• http://www.w3.org/ns/sosa/Sample ×20 — 🟤 SILOED · 1 graph
  • sawgraph — 193.0 k instances (×20 subtypes) — http://w3id.org/sawgraph/v1/me-egad-data#{id}
• http://w3id.org/sawgraph/v1/us-wqp#Sample ×5 — 🟤 SILOED · 1 graph
  • sawgraph — 14.0 k instances (×5 subtypes) — http://w3id.org/sawgraph/v1/us-wqp-data#{id}
• http://w3id.org/sawgraph/v1/us-wqp#SampledFeature — 🟠 SHAREABLE · 1 graph
  • sawgraph — 2.8 k instances — http://w3id.org/hyfo/wbd/v1/wbd-data#{id}

Facility · 2 graphs, 2 class IRIs

• http://w3id.org/fio/v1/epa-frs#FRS-Facility ×3 — 🟤 SILOED · 1 graph
  • fiokg — 10.01 M instances (×3 subtypes) — http://w3id.org/fio/v1/epa-frs-data#{id}
• http://release.niem.gov/niem/domains/jxdm/7.2/#Court — 🟤 SILOED · 1 graph
  • scales — 94 instances — http://schemas.scales-okn.org/rdf/scales#{id}

Generic place / feature

Generic place / feature · 10 graphs, 10 class IRIs

• http://www.opengis.net/ont/geosparql#Feature — 🔵 SHARED · 4 graphs
  • hydrologykg — 8.49 M instances — http://geoconnex.us/ref/pws/{id}
  • spatialkg — 7.45 M instances — http://stko-kwg.geog.ucsb.edu/lod/resource/{id}
  • sawgraph — 111.6 k instances — http://geoconnex.us/ref/pws/{id}
  • sudokn — 56.2 k instances — http://asu.edu/semantics/SUDOKN/{id}
• http://gnis-ld.org/lod/gnis/ontology/Feature — 🟠 SHAREABLE · 1 graph
  • geoconnex — 969.0 k instances — https://geoconnex.us/usgs/gnis/{id}
• http://w3id.org/coso/v1/contaminoso#Feature — 🔵 SHARED · 1 graph
  • sawgraph — 13.9 k instances — http://geoconnex.us/ref/pws/{id}
• https://metadata.phila.gov/Location — 🟤 SILOED · 1 graph
  • nikg — 9.1 k instances — https://metadata.phila.gov/{id}
• https://wildlife.proto-okn.net/kg/Location — 🟤 SILOED · 1 graph
  • wildlifekn — 657 instances — https://wildlife.proto-okn.net/kg/{id}
• http://release.niem.gov/niem/niem-core/5.0/#RelativeLocationReferencePoint — 🔵 SHARED · 1 graph
  • scales — 536 instances — https://datacommons.org/browser/geoId/{id}
• https://spec.industrialontologies.org/ontology/supplychain/SupplyChain/GeospatialLocation — 🟤 SILOED · 1 graph
  • sudokn — 225 instances — http://asu.edu/semantics/SUDOKN/{id}
• https://idir.uta.edu/sockg-ontology#Location — 🟤 SILOED · 1 graph
  • sockg — 58 instances — https://idir.uta.edu/sockg-ontology/individuals/{id}
• http://w3id.org/sawgraph/v1/us-wqp#DefWQPSurfaceWaterFeatureType ×3 — 🟤 SILOED · 1 graph
  • sawgraph — 20 instances (×3 subtypes) — http://w3id.org/sawgraph/v1/us-wqp-data#{id}
• https://w3id.org/biolink/vocab/EnvironmentalFeature — 🟠 SHAREABLE · 1 graph
  • spoke-okn — 2 instances — http://purl.obolibrary.org/obo/{id}

Other geographic feature · 2 graphs, 2 class IRIs

• http://sail.ua.edu/ruralkg/settlementtype/RUCC — 🟤 SILOED · 1 graph
  • ruralkg — 10 instances — http://sail.ua.edu/ruralkg/settlementtype/{id}
• http://asu.edu/semantics/SUDOKN/HUBZone — 🟤 SILOED · 1 graph
  • sudokn — 1 instance — http://asu.edu/semantics/SUDOKN/{id}