Figures & data
Table 1. An example for the characteristics hierarchy of geospatial data.
Table 2. Classes hierarchy of spatial ontology.
Table 3. Spatial relations.
Table 4. Properties of rivers.
Table 5. Temporal topological relations between different temporal entities.
Table 6. Relations of morphology ontology.
Table 7. Properties of morphology ontology.
Table 8. Relations of provenance ontology.
Table 9. Properties of agent.
Data availability statement
Data sharing is not applicable to this article as no new data were created or analysed in this study.