SAWGraph's spatial ontology - an extension of KnowWhereGraph's spatial ontology
type: Ontology
contributor: https://orcid.org/0000-0003-3547-8058
contributor: https://orcid.org/0000-0002-5331-5052
created: 2024-06-20
modified: 2024-12-10
publisher: https://sawgraph.github.io/
creator: https://orcid.org/0000-0002-5331-5052
description: This ontology supports querying the SAWGraph Knowledge Graph and the KnowWhereGraph. It is an adaptation of the spatial ontology originally published by the KnowWhereGraph Project
source: KWG Project: http://stko-kwg.geog.ucsb.edu/lod/ontology/
version info: 4.0

sfEquals (kwg)
type: ObjectProperty
sub property of: topological connection (spatial contact) (sawgraph)
type: ReflexiveProperty

sfContains (kwg)
type: ObjectProperty
sub property of: topological connection (spatial contact) (sawgraph)
inverse of: sfWithin (kwg)

sfCrosses (kwg)
type: ObjectProperty
sub property of: topological connection (spatial contact) (sawgraph)

sfOverlaps (kwg)
type: ObjectProperty
sub property of: topological connection (spatial contact) (sawgraph)
type: SymmetricProperty

sfTouches (kwg)
type: ObjectProperty
type: SymmetricProperty
sub property of: topological connection (spatial contact) (sawgraph)

sfWithin (kwg)
type: ObjectProperty
sub property of: topological connection (spatial contact) (sawgraph)

topological connection (spatial contact) (sawgraph)
type: ObjectProperty
sub property of: topological connection (spatial contact) (sawgraph)

topological connection (spatial contact) (sawgraph)
type: ObjectProperty
equivalent property: spatial relation (kwg)
domain: Spatial Object
range: Spatial Object

spatial relation (kwg)
type: ObjectProperty

AdministrativeRegion
type: Class
subclass of: Region
subclass of: Feature
comment: Administrative regoins as defined by the Global Administrative Area Database (GADM); see https://gadm.org/metadata.html

AdministrativeRegion_0
type: Class
subclass of: AdministrativeRegion
comment: GADM level 0 administrative regions which represent countries.

AdministrativeRegion 1
type: Class
subclass of: AdministrativeRegion
comment: GADM level 1 administrative regions which are the highest level of division of a country, such as US states, Canadian provinces, or French departments.

AdministrativeRegion 2
type: Class
subclass of: AdministrativeRegion
comment: GADM level 2 administrative regions which further subdivide states, provinces, or departments. Examples include counties in the US

AdministrativeRegion 3
type: Class
subclass of: AdministrativeRegion
comment: GADM level 3 administrative regions. In the US, these are subdivisions of counties, formally known as county subdivisions, such as minor civil divisions (e.g. towns ot townships) or census county divisions.

AdministrativeRegion 4
type: Class
subclass of: AdministrativeRegion
comment: GADM level 4 administrative regions.

AdministrativeRegion 5
type: Class
subclass of: AdministrativeRegion
comment: GADM level 5 administrative regions.

AdministrativeRegion 6
type: Class
subclass of: AdministrativeRegion
comment: GADM level 6 administrative regions.

Feature
type: Class
subclass of: Spatial Object
comment: Source: GeoSPARQL
disjoint with: Geometry

Geometry
type: Class
subclass of: Spatial Object
comment: Source: GeoSPARQL

Spatial Object
type: Class
comment: Source: GeoSPARQL